2510 lines
77 KiB
C
2510 lines
77 KiB
C
/*
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* Copyright 2007 Juan Lang
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wincrypt.h"
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#include "snmp.h"
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#include "wine/debug.h"
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#include "wine/exception.h"
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#include "crypt32_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(crypt);
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/* Called when a message's ref count reaches zero. Free any message-specific
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* data here.
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*/
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typedef void (*CryptMsgCloseFunc)(HCRYPTMSG msg);
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typedef BOOL (*CryptMsgGetParamFunc)(HCRYPTMSG hCryptMsg, DWORD dwParamType,
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DWORD dwIndex, void *pvData, DWORD *pcbData);
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typedef BOOL (*CryptMsgUpdateFunc)(HCRYPTMSG hCryptMsg, const BYTE *pbData,
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DWORD cbData, BOOL fFinal);
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typedef BOOL (*CryptMsgControlFunc)(HCRYPTMSG hCryptMsg, DWORD dwFlags,
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DWORD dwCtrlType, const void *pvCtrlPara);
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BOOL CRYPT_DefaultMsgControl(HCRYPTMSG hCryptMsg, DWORD dwFlags,
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DWORD dwCtrlType, const void *pvCtrlPara)
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{
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TRACE("(%p, %08x, %d, %p)\n", hCryptMsg, dwFlags, dwCtrlType, pvCtrlPara);
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SetLastError(E_INVALIDARG);
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return FALSE;
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}
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typedef enum _CryptMsgState {
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MsgStateInit,
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MsgStateUpdated,
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MsgStateFinalized
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} CryptMsgState;
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typedef struct _CryptMsgBase
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{
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LONG ref;
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DWORD open_flags;
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BOOL streamed;
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CMSG_STREAM_INFO stream_info;
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CryptMsgState state;
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CryptMsgCloseFunc close;
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CryptMsgUpdateFunc update;
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CryptMsgGetParamFunc get_param;
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CryptMsgControlFunc control;
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} CryptMsgBase;
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static inline void CryptMsgBase_Init(CryptMsgBase *msg, DWORD dwFlags,
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PCMSG_STREAM_INFO pStreamInfo, CryptMsgCloseFunc close,
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CryptMsgGetParamFunc get_param, CryptMsgUpdateFunc update,
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CryptMsgControlFunc control)
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{
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msg->ref = 1;
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msg->open_flags = dwFlags;
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if (pStreamInfo)
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{
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msg->streamed = TRUE;
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memcpy(&msg->stream_info, pStreamInfo, sizeof(msg->stream_info));
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}
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else
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{
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msg->streamed = FALSE;
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memset(&msg->stream_info, 0, sizeof(msg->stream_info));
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}
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msg->close = close;
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msg->get_param = get_param;
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msg->update = update;
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msg->control = control;
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msg->state = MsgStateInit;
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}
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typedef struct _CDataEncodeMsg
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{
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CryptMsgBase base;
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DWORD bare_content_len;
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LPBYTE bare_content;
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} CDataEncodeMsg;
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static const BYTE empty_data_content[] = { 0x04,0x00 };
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static void CDataEncodeMsg_Close(HCRYPTMSG hCryptMsg)
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{
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CDataEncodeMsg *msg = (CDataEncodeMsg *)hCryptMsg;
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if (msg->bare_content != empty_data_content)
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LocalFree(msg->bare_content);
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}
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static WINAPI BOOL CRYPT_EncodeContentLength(DWORD dwCertEncodingType,
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LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
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PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
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{
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const CDataEncodeMsg *msg = (const CDataEncodeMsg *)pvStructInfo;
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DWORD lenBytes;
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BOOL ret = TRUE;
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/* Trick: report bytes needed based on total message length, even though
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* the message isn't available yet. The caller will use the length
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* reported here to encode its length.
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*/
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CRYPT_EncodeLen(msg->base.stream_info.cbContent, NULL, &lenBytes);
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if (!pbEncoded)
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*pcbEncoded = 1 + lenBytes + msg->base.stream_info.cbContent;
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else
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{
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if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
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pcbEncoded, 1 + lenBytes)))
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{
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if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
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pbEncoded = *(BYTE **)pbEncoded;
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*pbEncoded++ = ASN_OCTETSTRING;
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CRYPT_EncodeLen(msg->base.stream_info.cbContent, pbEncoded,
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&lenBytes);
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}
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}
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return ret;
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}
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static BOOL CRYPT_EncodeDataContentInfoHeader(CDataEncodeMsg *msg,
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CRYPT_DATA_BLOB *header)
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{
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BOOL ret;
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if (msg->base.streamed && msg->base.stream_info.cbContent == 0xffffffff)
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{
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FIXME("unimplemented for indefinite-length encoding\n");
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header->cbData = 0;
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header->pbData = NULL;
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ret = TRUE;
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}
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else
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{
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struct AsnConstructedItem constructed = { 0, msg,
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CRYPT_EncodeContentLength };
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struct AsnEncodeSequenceItem items[2] = {
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{ szOID_RSA_data, CRYPT_AsnEncodeOid, 0 },
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{ &constructed, CRYPT_AsnEncodeConstructed, 0 },
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};
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ret = CRYPT_AsnEncodeSequence(X509_ASN_ENCODING, items,
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sizeof(items) / sizeof(items[0]), CRYPT_ENCODE_ALLOC_FLAG, NULL,
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(LPBYTE)&header->pbData, &header->cbData);
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if (ret)
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{
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/* Trick: subtract the content length from the reported length,
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* as the actual content hasn't come yet.
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*/
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header->cbData -= msg->base.stream_info.cbContent;
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}
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}
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return ret;
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}
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static BOOL CDataEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
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DWORD cbData, BOOL fFinal)
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{
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CDataEncodeMsg *msg = (CDataEncodeMsg *)hCryptMsg;
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BOOL ret = FALSE;
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if (msg->base.streamed)
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{
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__TRY
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{
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if (msg->base.state != MsgStateUpdated)
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{
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CRYPT_DATA_BLOB header;
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ret = CRYPT_EncodeDataContentInfoHeader(msg, &header);
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if (ret)
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{
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ret = msg->base.stream_info.pfnStreamOutput(
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msg->base.stream_info.pvArg, header.pbData, header.cbData,
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FALSE);
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LocalFree(header.pbData);
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}
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}
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if (!fFinal)
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ret = msg->base.stream_info.pfnStreamOutput(
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msg->base.stream_info.pvArg, (BYTE *)pbData, cbData,
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FALSE);
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else
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{
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if (msg->base.stream_info.cbContent == 0xffffffff)
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{
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BYTE indefinite_trailer[6] = { 0 };
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ret = msg->base.stream_info.pfnStreamOutput(
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msg->base.stream_info.pvArg, (BYTE *)pbData, cbData,
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FALSE);
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if (ret)
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ret = msg->base.stream_info.pfnStreamOutput(
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msg->base.stream_info.pvArg, indefinite_trailer,
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sizeof(indefinite_trailer), TRUE);
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}
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else
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ret = msg->base.stream_info.pfnStreamOutput(
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msg->base.stream_info.pvArg, (BYTE *)pbData, cbData, TRUE);
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}
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}
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__EXCEPT_PAGE_FAULT
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{
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SetLastError(STATUS_ACCESS_VIOLATION);
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ret = FALSE;
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}
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__ENDTRY;
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}
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else
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{
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if (!fFinal)
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{
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if (msg->base.open_flags & CMSG_DETACHED_FLAG)
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SetLastError(E_INVALIDARG);
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else
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SetLastError(CRYPT_E_MSG_ERROR);
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}
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else
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{
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if (!cbData)
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SetLastError(E_INVALIDARG);
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else
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{
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CRYPT_DATA_BLOB blob = { cbData, (LPBYTE)pbData };
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/* non-streamed data messages don't allow non-final updates,
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* don't bother checking whether data already exist, they can't.
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*/
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ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
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&blob, CRYPT_ENCODE_ALLOC_FLAG, NULL, &msg->bare_content,
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&msg->bare_content_len);
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}
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}
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}
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return ret;
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}
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static BOOL CRYPT_CopyParam(void *pvData, DWORD *pcbData, const void *src,
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DWORD len)
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{
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BOOL ret = TRUE;
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if (!pvData)
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*pcbData = len;
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else if (*pcbData < len)
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{
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*pcbData = len;
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SetLastError(ERROR_MORE_DATA);
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ret = FALSE;
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}
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else
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{
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*pcbData = len;
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memcpy(pvData, src, len);
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}
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return ret;
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}
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static BOOL CDataEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
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DWORD dwIndex, void *pvData, DWORD *pcbData)
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{
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CDataEncodeMsg *msg = (CDataEncodeMsg *)hCryptMsg;
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BOOL ret = FALSE;
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switch (dwParamType)
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{
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case CMSG_CONTENT_PARAM:
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if (msg->base.streamed)
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SetLastError(E_INVALIDARG);
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else
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{
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CRYPT_CONTENT_INFO info;
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char rsa_data[] = "1.2.840.113549.1.7.1";
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info.pszObjId = rsa_data;
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info.Content.cbData = msg->bare_content_len;
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info.Content.pbData = msg->bare_content;
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ret = CryptEncodeObject(X509_ASN_ENCODING, PKCS_CONTENT_INFO, &info,
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pvData, pcbData);
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}
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break;
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case CMSG_BARE_CONTENT_PARAM:
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if (msg->base.streamed)
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SetLastError(E_INVALIDARG);
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else
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ret = CRYPT_CopyParam(pvData, pcbData, msg->bare_content,
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msg->bare_content_len);
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break;
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default:
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SetLastError(CRYPT_E_INVALID_MSG_TYPE);
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}
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return ret;
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}
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static HCRYPTMSG CDataEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
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LPSTR pszInnerContentObjID, PCMSG_STREAM_INFO pStreamInfo)
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{
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CDataEncodeMsg *msg;
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if (pvMsgEncodeInfo)
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{
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SetLastError(E_INVALIDARG);
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return NULL;
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}
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msg = CryptMemAlloc(sizeof(CDataEncodeMsg));
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if (msg)
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{
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CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
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CDataEncodeMsg_Close, CDataEncodeMsg_GetParam, CDataEncodeMsg_Update,
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CRYPT_DefaultMsgControl);
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msg->bare_content_len = sizeof(empty_data_content);
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msg->bare_content = (LPBYTE)empty_data_content;
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}
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return (HCRYPTMSG)msg;
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}
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typedef struct _CHashEncodeMsg
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{
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CryptMsgBase base;
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HCRYPTPROV prov;
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HCRYPTHASH hash;
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CRYPT_DATA_BLOB data;
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} CHashEncodeMsg;
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static void CHashEncodeMsg_Close(HCRYPTMSG hCryptMsg)
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{
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CHashEncodeMsg *msg = (CHashEncodeMsg *)hCryptMsg;
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CryptMemFree(msg->data.pbData);
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CryptDestroyHash(msg->hash);
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if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
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CryptReleaseContext(msg->prov, 0);
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}
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static BOOL CRYPT_EncodePKCSDigestedData(CHashEncodeMsg *msg, void *pvData,
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DWORD *pcbData)
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{
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BOOL ret;
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ALG_ID algID;
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DWORD size = sizeof(algID);
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ret = CryptGetHashParam(msg->hash, HP_ALGID, (BYTE *)&algID, &size, 0);
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if (ret)
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{
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CRYPT_DIGESTED_DATA digestedData = { 0 };
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char oid_rsa_data[] = szOID_RSA_data;
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digestedData.version = CMSG_HASHED_DATA_PKCS_1_5_VERSION;
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digestedData.DigestAlgorithm.pszObjId = (LPSTR)CertAlgIdToOID(algID);
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/* FIXME: what about digestedData.DigestAlgorithm.Parameters? */
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/* Quirk: OID is only encoded messages if an update has happened */
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if (msg->base.state != MsgStateInit)
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digestedData.ContentInfo.pszObjId = oid_rsa_data;
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if (!(msg->base.open_flags & CMSG_DETACHED_FLAG) && msg->data.cbData)
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{
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ret = CRYPT_AsnEncodeOctets(0, NULL, &msg->data,
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CRYPT_ENCODE_ALLOC_FLAG, NULL,
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(LPBYTE)&digestedData.ContentInfo.Content.pbData,
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&digestedData.ContentInfo.Content.cbData);
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}
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if (msg->base.state == MsgStateFinalized)
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{
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size = sizeof(DWORD);
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ret = CryptGetHashParam(msg->hash, HP_HASHSIZE,
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(LPBYTE)&digestedData.hash.cbData, &size, 0);
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if (ret)
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{
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digestedData.hash.pbData = CryptMemAlloc(
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digestedData.hash.cbData);
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ret = CryptGetHashParam(msg->hash, HP_HASHVAL,
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digestedData.hash.pbData, &digestedData.hash.cbData, 0);
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}
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}
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if (ret)
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ret = CRYPT_AsnEncodePKCSDigestedData(&digestedData, pvData,
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pcbData);
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CryptMemFree(digestedData.hash.pbData);
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LocalFree(digestedData.ContentInfo.Content.pbData);
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}
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return ret;
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}
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static BOOL CHashEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
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DWORD dwIndex, void *pvData, DWORD *pcbData)
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{
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CHashEncodeMsg *msg = (CHashEncodeMsg *)hCryptMsg;
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BOOL ret = FALSE;
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TRACE("(%p, %d, %d, %p, %p)\n", hCryptMsg, dwParamType, dwIndex,
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pvData, pcbData);
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switch (dwParamType)
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{
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case CMSG_BARE_CONTENT_PARAM:
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if (msg->base.streamed)
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SetLastError(E_INVALIDARG);
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else
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ret = CRYPT_EncodePKCSDigestedData(msg, pvData, pcbData);
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break;
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case CMSG_CONTENT_PARAM:
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{
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CRYPT_CONTENT_INFO info;
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ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
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&info.Content.cbData);
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if (ret)
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{
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info.Content.pbData = CryptMemAlloc(info.Content.cbData);
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if (info.Content.pbData)
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{
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ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
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info.Content.pbData, &info.Content.cbData);
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if (ret)
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{
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char oid_rsa_hashed[] = szOID_RSA_hashedData;
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info.pszObjId = oid_rsa_hashed;
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ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
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PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
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}
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CryptMemFree(info.Content.pbData);
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}
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else
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ret = FALSE;
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}
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break;
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}
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case CMSG_COMPUTED_HASH_PARAM:
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ret = CryptGetHashParam(msg->hash, HP_HASHVAL, (BYTE *)pvData, pcbData,
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0);
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break;
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case CMSG_VERSION_PARAM:
|
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if (msg->base.state != MsgStateFinalized)
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SetLastError(CRYPT_E_MSG_ERROR);
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else
|
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{
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DWORD version = CMSG_HASHED_DATA_PKCS_1_5_VERSION;
|
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|
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/* Since the data are always encoded as octets, the version is
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* always 0 (see rfc3852, section 7)
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*/
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ret = CRYPT_CopyParam(pvData, pcbData, &version, sizeof(version));
|
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}
|
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break;
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default:
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SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
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}
|
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return ret;
|
|
}
|
|
|
|
static BOOL CHashEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
|
|
DWORD cbData, BOOL fFinal)
|
|
{
|
|
CHashEncodeMsg *msg = (CHashEncodeMsg *)hCryptMsg;
|
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BOOL ret = FALSE;
|
|
|
|
TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
|
|
|
|
if (msg->base.streamed || (msg->base.open_flags & CMSG_DETACHED_FLAG))
|
|
{
|
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/* Doesn't do much, as stream output is never called, and you
|
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* can't get the content.
|
|
*/
|
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ret = CryptHashData(msg->hash, pbData, cbData, 0);
|
|
}
|
|
else
|
|
{
|
|
if (!fFinal)
|
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SetLastError(CRYPT_E_MSG_ERROR);
|
|
else
|
|
{
|
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ret = CryptHashData(msg->hash, pbData, cbData, 0);
|
|
if (ret)
|
|
{
|
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msg->data.pbData = CryptMemAlloc(cbData);
|
|
if (msg->data.pbData)
|
|
{
|
|
memcpy(msg->data.pbData + msg->data.cbData, pbData, cbData);
|
|
msg->data.cbData += cbData;
|
|
}
|
|
else
|
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ret = FALSE;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static HCRYPTMSG CHashEncodeMsg_Open(DWORD dwFlags, const void *pvMsgEncodeInfo,
|
|
LPSTR pszInnerContentObjID, PCMSG_STREAM_INFO pStreamInfo)
|
|
{
|
|
CHashEncodeMsg *msg;
|
|
const CMSG_HASHED_ENCODE_INFO *info =
|
|
(const CMSG_HASHED_ENCODE_INFO *)pvMsgEncodeInfo;
|
|
HCRYPTPROV prov;
|
|
ALG_ID algID;
|
|
|
|
if (info->cbSize != sizeof(CMSG_HASHED_ENCODE_INFO))
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
return NULL;
|
|
}
|
|
if (!(algID = CertOIDToAlgId(info->HashAlgorithm.pszObjId)))
|
|
{
|
|
SetLastError(CRYPT_E_UNKNOWN_ALGO);
|
|
return NULL;
|
|
}
|
|
if (info->hCryptProv)
|
|
prov = info->hCryptProv;
|
|
else
|
|
{
|
|
prov = CRYPT_GetDefaultProvider();
|
|
dwFlags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
|
|
}
|
|
msg = CryptMemAlloc(sizeof(CHashEncodeMsg));
|
|
if (msg)
|
|
{
|
|
CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
|
|
CHashEncodeMsg_Close, CHashEncodeMsg_GetParam, CHashEncodeMsg_Update,
|
|
CRYPT_DefaultMsgControl);
|
|
msg->prov = prov;
|
|
msg->data.cbData = 0;
|
|
msg->data.pbData = NULL;
|
|
if (!CryptCreateHash(prov, algID, 0, 0, &msg->hash))
|
|
{
|
|
CryptMsgClose(msg);
|
|
msg = NULL;
|
|
}
|
|
}
|
|
return (HCRYPTMSG)msg;
|
|
}
|
|
|
|
typedef struct _CMSG_SIGNER_ENCODE_INFO_WITH_CMS
|
|
{
|
|
DWORD cbSize;
|
|
PCERT_INFO pCertInfo;
|
|
HCRYPTPROV hCryptProv;
|
|
DWORD dwKeySpec;
|
|
CRYPT_ALGORITHM_IDENTIFIER HashAlgorithm;
|
|
void *pvHashAuxInfo;
|
|
DWORD cAuthAttr;
|
|
PCRYPT_ATTRIBUTE rgAuthAttr;
|
|
DWORD cUnauthAttr;
|
|
PCRYPT_ATTRIBUTE rgUnauthAttr;
|
|
CERT_ID SignerId;
|
|
CRYPT_ALGORITHM_IDENTIFIER HashEncryptionAlgorithm;
|
|
void *pvHashEncryptionAuxInfo;
|
|
} CMSG_SIGNER_ENCODE_INFO_WITH_CMS, *PCMSG_SIGNER_ENCODE_INFO_WITH_CMS;
|
|
|
|
typedef struct _CMSG_SIGNED_ENCODE_INFO_WITH_CMS
|
|
{
|
|
DWORD cbSize;
|
|
DWORD cSigners;
|
|
PCMSG_SIGNER_ENCODE_INFO_WITH_CMS rgSigners;
|
|
DWORD cCertEncoded;
|
|
PCERT_BLOB rgCertEncoded;
|
|
DWORD cCrlEncoded;
|
|
PCRL_BLOB rgCrlEncoded;
|
|
DWORD cAttrCertEncoded;
|
|
PCERT_BLOB rgAttrCertEncoded;
|
|
} CMSG_SIGNED_ENCODE_INFO_WITH_CMS, *PCMSG_SIGNED_ENCODE_INFO_WITH_CMS;
|
|
|
|
static BOOL CRYPT_IsValidSigner(CMSG_SIGNER_ENCODE_INFO_WITH_CMS *signer)
|
|
{
|
|
if (signer->cbSize != sizeof(CMSG_SIGNER_ENCODE_INFO) &&
|
|
signer->cbSize != sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS))
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
return FALSE;
|
|
}
|
|
if (signer->cbSize == sizeof(CMSG_SIGNER_ENCODE_INFO_WITH_CMS))
|
|
{
|
|
FIXME("CMSG_SIGNER_ENCODE_INFO with CMS fields unsupported\n");
|
|
return FALSE;
|
|
}
|
|
if (!signer->pCertInfo->SerialNumber.cbData)
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
return FALSE;
|
|
}
|
|
if (!signer->pCertInfo->Issuer.cbData)
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
return FALSE;
|
|
}
|
|
if (!signer->hCryptProv)
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
return FALSE;
|
|
}
|
|
if (!CertOIDToAlgId(signer->HashAlgorithm.pszObjId))
|
|
{
|
|
SetLastError(CRYPT_E_UNKNOWN_ALGO);
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOL CRYPT_ConstructBlob(CRYPT_DATA_BLOB *out, const CRYPT_DATA_BLOB *in)
|
|
{
|
|
BOOL ret = TRUE;
|
|
|
|
out->cbData = in->cbData;
|
|
if (out->cbData)
|
|
{
|
|
out->pbData = CryptMemAlloc(out->cbData);
|
|
if (out->pbData)
|
|
memcpy(out->pbData, in->pbData, out->cbData);
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
out->pbData = NULL;
|
|
return ret;
|
|
}
|
|
|
|
typedef struct _BlobArray
|
|
{
|
|
DWORD cBlobs;
|
|
PCRYPT_DATA_BLOB blobs;
|
|
} BlobArray;
|
|
|
|
static BOOL CRYPT_ConstructBlobArray(BlobArray *out, const BlobArray *in)
|
|
{
|
|
BOOL ret = TRUE;
|
|
|
|
out->cBlobs = in->cBlobs;
|
|
if (out->cBlobs)
|
|
{
|
|
out->blobs = CryptMemAlloc(out->cBlobs * sizeof(CRYPT_DATA_BLOB));
|
|
if (out->blobs)
|
|
{
|
|
DWORD i;
|
|
|
|
memset(out->blobs, 0, out->cBlobs * sizeof(CRYPT_DATA_BLOB));
|
|
for (i = 0; ret && i < out->cBlobs; i++)
|
|
ret = CRYPT_ConstructBlob(&out->blobs[i], &in->blobs[i]);
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void CRYPT_FreeBlobArray(BlobArray *array)
|
|
{
|
|
DWORD i;
|
|
|
|
for (i = 0; i < array->cBlobs; i++)
|
|
CryptMemFree(array->blobs[i].pbData);
|
|
CryptMemFree(array->blobs);
|
|
}
|
|
|
|
static BOOL CRYPT_ConstructAttribute(CRYPT_ATTRIBUTE *out,
|
|
const CRYPT_ATTRIBUTE *in)
|
|
{
|
|
BOOL ret;
|
|
|
|
out->pszObjId = CryptMemAlloc(strlen(in->pszObjId) + 1);
|
|
if (out->pszObjId)
|
|
{
|
|
strcpy(out->pszObjId, in->pszObjId);
|
|
ret = CRYPT_ConstructBlobArray((BlobArray *)&out->cValue,
|
|
(const BlobArray *)&in->cValue);
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CRYPT_ConstructAttributes(CRYPT_ATTRIBUTES *out,
|
|
const CRYPT_ATTRIBUTES *in)
|
|
{
|
|
BOOL ret = TRUE;
|
|
|
|
out->cAttr = in->cAttr;
|
|
if (out->cAttr)
|
|
{
|
|
out->rgAttr = CryptMemAlloc(out->cAttr * sizeof(CRYPT_ATTRIBUTE));
|
|
if (out->rgAttr)
|
|
{
|
|
DWORD i;
|
|
|
|
memset(out->rgAttr, 0, out->cAttr * sizeof(CRYPT_ATTRIBUTE));
|
|
for (i = 0; ret && i < out->cAttr; i++)
|
|
ret = CRYPT_ConstructAttribute(&out->rgAttr[i], &in->rgAttr[i]);
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
out->rgAttr = NULL;
|
|
return ret;
|
|
}
|
|
|
|
/* Constructs a CMSG_SIGNER_INFO from a CMSG_SIGNER_ENCODE_INFO_WITH_CMS. */
|
|
static BOOL CSignerInfo_Construct(CMSG_SIGNER_INFO *info,
|
|
CMSG_SIGNER_ENCODE_INFO_WITH_CMS *in)
|
|
{
|
|
BOOL ret;
|
|
|
|
/* Note: needs to change if CMS fields are supported */
|
|
info->dwVersion = CMSG_SIGNER_INFO_V1;
|
|
ret = CRYPT_ConstructBlob(&info->Issuer, &in->pCertInfo->Issuer);
|
|
if (ret)
|
|
ret = CRYPT_ConstructBlob(&info->SerialNumber,
|
|
&in->pCertInfo->SerialNumber);
|
|
/* Assumption: algorithm IDs will point to static strings, not
|
|
* stack-based ones, so copying the pointer values is safe.
|
|
*/
|
|
info->HashAlgorithm.pszObjId = in->HashAlgorithm.pszObjId;
|
|
if (ret)
|
|
ret = CRYPT_ConstructBlob(&info->HashAlgorithm.Parameters,
|
|
&in->HashAlgorithm.Parameters);
|
|
memset(&info->HashEncryptionAlgorithm, 0,
|
|
sizeof(info->HashEncryptionAlgorithm));
|
|
if (ret)
|
|
ret = CRYPT_ConstructAttributes(&info->AuthAttrs,
|
|
(CRYPT_ATTRIBUTES *)&in->cAuthAttr);
|
|
if (ret)
|
|
ret = CRYPT_ConstructAttributes(&info->UnauthAttrs,
|
|
(CRYPT_ATTRIBUTES *)&in->cUnauthAttr);
|
|
return ret;
|
|
}
|
|
|
|
static void CSignerInfo_Free(CMSG_SIGNER_INFO *info)
|
|
{
|
|
DWORD i, j;
|
|
|
|
CryptMemFree(info->Issuer.pbData);
|
|
CryptMemFree(info->SerialNumber.pbData);
|
|
CryptMemFree(info->HashAlgorithm.Parameters.pbData);
|
|
CryptMemFree(info->EncryptedHash.pbData);
|
|
for (i = 0; i < info->AuthAttrs.cAttr; i++)
|
|
{
|
|
for (j = 0; j < info->AuthAttrs.rgAttr[i].cValue; j++)
|
|
CryptMemFree(info->AuthAttrs.rgAttr[i].rgValue[j].pbData);
|
|
CryptMemFree(info->AuthAttrs.rgAttr[i].rgValue);
|
|
CryptMemFree(info->AuthAttrs.rgAttr[i].pszObjId);
|
|
}
|
|
CryptMemFree(info->AuthAttrs.rgAttr);
|
|
for (i = 0; i < info->UnauthAttrs.cAttr; i++)
|
|
{
|
|
for (j = 0; j < info->UnauthAttrs.rgAttr[i].cValue; j++)
|
|
CryptMemFree(info->UnauthAttrs.rgAttr[i].rgValue[j].pbData);
|
|
CryptMemFree(info->UnauthAttrs.rgAttr[i].rgValue);
|
|
CryptMemFree(info->UnauthAttrs.rgAttr[i].pszObjId);
|
|
}
|
|
CryptMemFree(info->UnauthAttrs.rgAttr);
|
|
}
|
|
|
|
typedef struct _CSignerHandles
|
|
{
|
|
HCRYPTHASH contentHash;
|
|
HCRYPTHASH authAttrHash;
|
|
HCRYPTKEY key;
|
|
} CSignerHandles;
|
|
|
|
typedef struct _CSignedMsgData
|
|
{
|
|
CRYPT_SIGNED_INFO *info;
|
|
CSignerHandles *signerHandles;
|
|
} CSignedMsgData;
|
|
|
|
/* Constructs the signer handles for the signerIndex'th signer of msg_data.
|
|
* Assumes signerIndex is a valid idnex, and that msg_data's info has already
|
|
* been constructed.
|
|
*/
|
|
static BOOL CSignedMsgData_ConstructSignerHandles(CSignedMsgData *msg_data,
|
|
DWORD signerIndex, HCRYPTPROV crypt_prov)
|
|
{
|
|
ALG_ID algID;
|
|
BOOL ret;
|
|
|
|
algID = CertOIDToAlgId(
|
|
msg_data->info->rgSignerInfo[signerIndex].HashAlgorithm.pszObjId);
|
|
ret = CryptCreateHash(crypt_prov, algID, 0, 0,
|
|
&msg_data->signerHandles->contentHash);
|
|
if (ret && msg_data->info->rgSignerInfo[signerIndex].AuthAttrs.cAttr > 0)
|
|
ret = CryptCreateHash(crypt_prov, algID, 0, 0,
|
|
&msg_data->signerHandles->authAttrHash);
|
|
return ret;
|
|
}
|
|
|
|
/* Allocates a CSignedMsgData's handles. Assumes its info has already been
|
|
* constructed.
|
|
*/
|
|
static BOOL CSignedMsgData_AllocateHandles(CSignedMsgData *msg_data)
|
|
{
|
|
BOOL ret = TRUE;
|
|
|
|
if (msg_data->info->cSignerInfo)
|
|
{
|
|
msg_data->signerHandles =
|
|
CryptMemAlloc(msg_data->info->cSignerInfo * sizeof(CSignerHandles));
|
|
if (msg_data->signerHandles)
|
|
memset(msg_data->signerHandles, 0,
|
|
msg_data->info->cSignerInfo * sizeof(CSignerHandles));
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
msg_data->signerHandles = NULL;
|
|
return ret;
|
|
}
|
|
|
|
static void CSignedMsgData_CloseHandles(CSignedMsgData *msg_data)
|
|
{
|
|
DWORD i;
|
|
|
|
for (i = 0; i < msg_data->info->cSignerInfo; i++)
|
|
{
|
|
if (msg_data->signerHandles[i].key)
|
|
CryptDestroyKey(msg_data->signerHandles[i].key);
|
|
if (msg_data->signerHandles[i].contentHash)
|
|
CryptDestroyHash(msg_data->signerHandles[i].contentHash);
|
|
if (msg_data->signerHandles[i].authAttrHash)
|
|
CryptDestroyHash(msg_data->signerHandles[i].authAttrHash);
|
|
}
|
|
CryptMemFree(msg_data->signerHandles);
|
|
}
|
|
|
|
static BOOL CSignedMsgData_UpdateHash(CSignedMsgData *msg_data,
|
|
const BYTE *pbData, DWORD cbData)
|
|
{
|
|
DWORD i;
|
|
BOOL ret = TRUE;
|
|
|
|
for (i = 0; ret && i < msg_data->info->cSignerInfo; i++)
|
|
ret = CryptHashData(msg_data->signerHandles[i].contentHash, pbData,
|
|
cbData, 0);
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CRYPT_AppendAttribute(CRYPT_ATTRIBUTES *out,
|
|
const CRYPT_ATTRIBUTE *in)
|
|
{
|
|
BOOL ret = FALSE;
|
|
|
|
out->rgAttr = CryptMemRealloc(out->rgAttr,
|
|
(out->cAttr + 1) * sizeof(CRYPT_ATTRIBUTE));
|
|
if (out->rgAttr)
|
|
{
|
|
ret = CRYPT_ConstructAttribute(&out->rgAttr[out->cAttr], in);
|
|
if (ret)
|
|
out->cAttr++;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CSignedMsgData_AppendMessageDigestAttribute(
|
|
CSignedMsgData *msg_data, DWORD signerIndex)
|
|
{
|
|
BOOL ret;
|
|
DWORD size;
|
|
CRYPT_HASH_BLOB hash = { 0, NULL }, encodedHash = { 0, NULL };
|
|
char messageDigest[] = szOID_RSA_messageDigest;
|
|
CRYPT_ATTRIBUTE messageDigestAttr = { messageDigest, 1, &encodedHash };
|
|
|
|
size = sizeof(DWORD);
|
|
ret = CryptGetHashParam(
|
|
msg_data->signerHandles[signerIndex].contentHash, HP_HASHSIZE,
|
|
(LPBYTE)&hash.cbData, &size, 0);
|
|
if (ret)
|
|
{
|
|
hash.pbData = CryptMemAlloc(hash.cbData);
|
|
ret = CryptGetHashParam(
|
|
msg_data->signerHandles[signerIndex].contentHash, HP_HASHVAL,
|
|
hash.pbData, &hash.cbData, 0);
|
|
if (ret)
|
|
{
|
|
ret = CRYPT_AsnEncodeOctets(0, NULL, &hash, CRYPT_ENCODE_ALLOC_FLAG,
|
|
NULL, (LPBYTE)&encodedHash.pbData, &encodedHash.cbData);
|
|
if (ret)
|
|
{
|
|
ret = CRYPT_AppendAttribute(
|
|
&msg_data->info->rgSignerInfo[signerIndex].AuthAttrs,
|
|
&messageDigestAttr);
|
|
LocalFree(encodedHash.pbData);
|
|
}
|
|
}
|
|
CryptMemFree(hash.pbData);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
typedef enum {
|
|
Sign,
|
|
Verify
|
|
} SignOrVerify;
|
|
|
|
static BOOL CSignedMsgData_UpdateAuthenticatedAttributes(
|
|
CSignedMsgData *msg_data, SignOrVerify flag)
|
|
{
|
|
DWORD i;
|
|
BOOL ret = TRUE;
|
|
|
|
TRACE("(%p)\n", msg_data);
|
|
|
|
for (i = 0; ret && i < msg_data->info->cSignerInfo; i++)
|
|
{
|
|
if (msg_data->info->rgSignerInfo[i].AuthAttrs.cAttr)
|
|
{
|
|
if (flag == Sign)
|
|
{
|
|
BYTE oid_rsa_data_encoded[] = { 0x06,0x09,0x2a,0x86,0x48,0x86,
|
|
0xf7,0x0d,0x01,0x07,0x01 };
|
|
CRYPT_DATA_BLOB content = { sizeof(oid_rsa_data_encoded),
|
|
oid_rsa_data_encoded };
|
|
char contentType[] = szOID_RSA_contentType;
|
|
CRYPT_ATTRIBUTE contentTypeAttr = { contentType, 1, &content };
|
|
|
|
/* FIXME: does this depend on inner OID? */
|
|
ret = CRYPT_AppendAttribute(
|
|
&msg_data->info->rgSignerInfo[i].AuthAttrs, &contentTypeAttr);
|
|
if (ret)
|
|
ret = CSignedMsgData_AppendMessageDigestAttribute(msg_data,
|
|
i);
|
|
}
|
|
if (ret)
|
|
{
|
|
LPBYTE encodedAttrs;
|
|
DWORD size;
|
|
|
|
ret = CryptEncodeObjectEx(X509_ASN_ENCODING, PKCS_ATTRIBUTES,
|
|
&msg_data->info->rgSignerInfo[i].AuthAttrs,
|
|
CRYPT_ENCODE_ALLOC_FLAG, NULL, (LPBYTE)&encodedAttrs, &size);
|
|
if (ret)
|
|
{
|
|
ret = CryptHashData(
|
|
msg_data->signerHandles[i].authAttrHash, encodedAttrs,
|
|
size, 0);
|
|
LocalFree(encodedAttrs);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
TRACE("returning %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
static void CRYPT_ReverseBytes(CRYPT_HASH_BLOB *hash)
|
|
{
|
|
DWORD i;
|
|
BYTE tmp;
|
|
|
|
for (i = 0; i < hash->cbData / 2; i++)
|
|
{
|
|
tmp = hash->pbData[hash->cbData - i - 1];
|
|
hash->pbData[hash->cbData - i - 1] = hash->pbData[i];
|
|
hash->pbData[i] = tmp;
|
|
}
|
|
}
|
|
|
|
static BOOL CSignedMsgData_Sign(CSignedMsgData *msg_data)
|
|
{
|
|
DWORD i;
|
|
BOOL ret = TRUE;
|
|
|
|
TRACE("(%p)\n", msg_data);
|
|
|
|
for (i = 0; ret && i < msg_data->info->cSignerInfo; i++)
|
|
{
|
|
HCRYPTHASH hash;
|
|
|
|
if (msg_data->info->rgSignerInfo[i].AuthAttrs.cAttr)
|
|
hash = msg_data->signerHandles[i].authAttrHash;
|
|
else
|
|
hash = msg_data->signerHandles[i].contentHash;
|
|
ret = CryptSignHashW(hash, AT_SIGNATURE, NULL, 0, NULL,
|
|
&msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
|
|
if (ret)
|
|
{
|
|
msg_data->info->rgSignerInfo[i].EncryptedHash.pbData =
|
|
CryptMemAlloc(
|
|
msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
|
|
if (msg_data->info->rgSignerInfo[i].EncryptedHash.pbData)
|
|
{
|
|
ret = CryptSignHashW(hash, AT_SIGNATURE, NULL, 0,
|
|
msg_data->info->rgSignerInfo[i].EncryptedHash.pbData,
|
|
&msg_data->info->rgSignerInfo[i].EncryptedHash.cbData);
|
|
if (ret)
|
|
CRYPT_ReverseBytes(
|
|
&msg_data->info->rgSignerInfo[i].EncryptedHash);
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CSignedMsgData_Update(CSignedMsgData *msg_data,
|
|
const BYTE *pbData, DWORD cbData, BOOL fFinal, SignOrVerify flag)
|
|
{
|
|
BOOL ret = CSignedMsgData_UpdateHash(msg_data, pbData, cbData);
|
|
|
|
if (ret && fFinal)
|
|
{
|
|
ret = CSignedMsgData_UpdateAuthenticatedAttributes(msg_data, flag);
|
|
if (ret && flag == Sign)
|
|
ret = CSignedMsgData_Sign(msg_data);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
typedef struct _CSignedEncodeMsg
|
|
{
|
|
CryptMsgBase base;
|
|
CRYPT_DATA_BLOB data;
|
|
CSignedMsgData msg_data;
|
|
} CSignedEncodeMsg;
|
|
|
|
static void CSignedEncodeMsg_Close(HCRYPTMSG hCryptMsg)
|
|
{
|
|
CSignedEncodeMsg *msg = (CSignedEncodeMsg *)hCryptMsg;
|
|
DWORD i;
|
|
|
|
CryptMemFree(msg->data.pbData);
|
|
CRYPT_FreeBlobArray((BlobArray *)&msg->msg_data.info->cCertEncoded);
|
|
CRYPT_FreeBlobArray((BlobArray *)&msg->msg_data.info->cCrlEncoded);
|
|
for (i = 0; i < msg->msg_data.info->cSignerInfo; i++)
|
|
CSignerInfo_Free(&msg->msg_data.info->rgSignerInfo[i]);
|
|
CSignedMsgData_CloseHandles(&msg->msg_data);
|
|
CryptMemFree(msg->msg_data.info->rgSignerInfo);
|
|
CryptMemFree(msg->msg_data.info);
|
|
}
|
|
|
|
static BOOL CSignedEncodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
|
|
DWORD dwIndex, void *pvData, DWORD *pcbData)
|
|
{
|
|
CSignedEncodeMsg *msg = (CSignedEncodeMsg *)hCryptMsg;
|
|
BOOL ret = FALSE;
|
|
|
|
switch (dwParamType)
|
|
{
|
|
case CMSG_CONTENT_PARAM:
|
|
{
|
|
CRYPT_CONTENT_INFO info;
|
|
|
|
ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0, NULL,
|
|
&info.Content.cbData);
|
|
if (ret)
|
|
{
|
|
info.Content.pbData = CryptMemAlloc(info.Content.cbData);
|
|
if (info.Content.pbData)
|
|
{
|
|
ret = CryptMsgGetParam(hCryptMsg, CMSG_BARE_CONTENT_PARAM, 0,
|
|
info.Content.pbData, &info.Content.cbData);
|
|
if (ret)
|
|
{
|
|
char oid_rsa_signed[] = szOID_RSA_signedData;
|
|
|
|
info.pszObjId = oid_rsa_signed;
|
|
ret = CryptEncodeObjectEx(X509_ASN_ENCODING,
|
|
PKCS_CONTENT_INFO, &info, 0, NULL, pvData, pcbData);
|
|
}
|
|
CryptMemFree(info.Content.pbData);
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
break;
|
|
}
|
|
case CMSG_BARE_CONTENT_PARAM:
|
|
{
|
|
CRYPT_SIGNED_INFO info;
|
|
char oid_rsa_data[] = szOID_RSA_data;
|
|
|
|
memcpy(&info, msg->msg_data.info, sizeof(info));
|
|
/* Quirk: OID is only encoded messages if an update has happened */
|
|
if (msg->base.state != MsgStateInit)
|
|
info.content.pszObjId = oid_rsa_data;
|
|
else
|
|
info.content.pszObjId = NULL;
|
|
if (msg->data.cbData)
|
|
{
|
|
CRYPT_DATA_BLOB blob = { msg->data.cbData, msg->data.pbData };
|
|
|
|
ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
|
|
&blob, CRYPT_ENCODE_ALLOC_FLAG, NULL,
|
|
&info.content.Content.pbData, &info.content.Content.cbData);
|
|
}
|
|
else
|
|
{
|
|
info.content.Content.cbData = 0;
|
|
info.content.Content.pbData = NULL;
|
|
ret = TRUE;
|
|
}
|
|
if (ret)
|
|
{
|
|
ret = CRYPT_AsnEncodePKCSSignedInfo(&info, pvData, pcbData);
|
|
LocalFree(info.content.Content.pbData);
|
|
}
|
|
break;
|
|
}
|
|
case CMSG_COMPUTED_HASH_PARAM:
|
|
if (dwIndex >= msg->msg_data.info->cSignerInfo)
|
|
SetLastError(CRYPT_E_INVALID_INDEX);
|
|
else
|
|
ret = CryptGetHashParam(
|
|
msg->msg_data.signerHandles[dwIndex].contentHash, HP_HASHVAL,
|
|
pvData, pcbData, 0);
|
|
break;
|
|
case CMSG_ENCODED_SIGNER:
|
|
if (dwIndex >= msg->msg_data.info->cSignerInfo)
|
|
SetLastError(CRYPT_E_INVALID_INDEX);
|
|
else
|
|
ret = CryptEncodeObjectEx(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
|
|
PKCS7_SIGNER_INFO, &msg->msg_data.info->rgSignerInfo[dwIndex], 0,
|
|
NULL, pvData, pcbData);
|
|
break;
|
|
case CMSG_VERSION_PARAM:
|
|
ret = CRYPT_CopyParam(pvData, pcbData, &msg->msg_data.info->version,
|
|
sizeof(msg->msg_data.info->version));
|
|
break;
|
|
default:
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CSignedEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
|
|
DWORD cbData, BOOL fFinal)
|
|
{
|
|
CSignedEncodeMsg *msg = (CSignedEncodeMsg *)hCryptMsg;
|
|
BOOL ret = FALSE;
|
|
|
|
if (msg->base.streamed || (msg->base.open_flags & CMSG_DETACHED_FLAG))
|
|
{
|
|
ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData, fFinal,
|
|
Sign);
|
|
if (msg->base.streamed)
|
|
FIXME("streamed partial stub\n");
|
|
}
|
|
else
|
|
{
|
|
if (!fFinal)
|
|
SetLastError(CRYPT_E_MSG_ERROR);
|
|
else
|
|
{
|
|
if (cbData)
|
|
{
|
|
msg->data.pbData = CryptMemAlloc(cbData);
|
|
if (msg->data.pbData)
|
|
{
|
|
memcpy(msg->data.pbData, pbData, cbData);
|
|
msg->data.cbData = cbData;
|
|
ret = TRUE;
|
|
}
|
|
}
|
|
else
|
|
ret = TRUE;
|
|
if (ret)
|
|
ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData,
|
|
fFinal, Sign);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static HCRYPTMSG CSignedEncodeMsg_Open(DWORD dwFlags,
|
|
const void *pvMsgEncodeInfo, LPSTR pszInnerContentObjID,
|
|
PCMSG_STREAM_INFO pStreamInfo)
|
|
{
|
|
const CMSG_SIGNED_ENCODE_INFO_WITH_CMS *info =
|
|
(const CMSG_SIGNED_ENCODE_INFO_WITH_CMS *)pvMsgEncodeInfo;
|
|
DWORD i;
|
|
CSignedEncodeMsg *msg;
|
|
|
|
if (info->cbSize != sizeof(CMSG_SIGNED_ENCODE_INFO) &&
|
|
info->cbSize != sizeof(CMSG_SIGNED_ENCODE_INFO_WITH_CMS))
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
return NULL;
|
|
}
|
|
if (info->cbSize == sizeof(CMSG_SIGNED_ENCODE_INFO_WITH_CMS))
|
|
{
|
|
FIXME("CMSG_SIGNED_ENCODE_INFO with CMS fields unsupported\n");
|
|
return NULL;
|
|
}
|
|
for (i = 0; i < info->cSigners; i++)
|
|
if (!CRYPT_IsValidSigner(&info->rgSigners[i]))
|
|
return NULL;
|
|
msg = CryptMemAlloc(sizeof(CSignedEncodeMsg));
|
|
if (msg)
|
|
{
|
|
BOOL ret = TRUE;
|
|
|
|
CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
|
|
CSignedEncodeMsg_Close, CSignedEncodeMsg_GetParam,
|
|
CSignedEncodeMsg_Update, CRYPT_DefaultMsgControl);
|
|
msg->data.cbData = 0;
|
|
msg->data.pbData = NULL;
|
|
msg->msg_data.info = CryptMemAlloc(sizeof(CRYPT_SIGNED_INFO));
|
|
if (msg->msg_data.info)
|
|
{
|
|
memset(msg->msg_data.info, 0, sizeof(CRYPT_SIGNED_INFO));
|
|
msg->msg_data.info->version = CMSG_SIGNED_DATA_V1;
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
if (ret && info->cSigners)
|
|
{
|
|
msg->msg_data.info->rgSignerInfo =
|
|
CryptMemAlloc(info->cSigners * sizeof(CMSG_SIGNER_INFO));
|
|
if (msg->msg_data.info->rgSignerInfo)
|
|
{
|
|
msg->msg_data.info->cSignerInfo = info->cSigners;
|
|
memset(msg->msg_data.info->rgSignerInfo, 0,
|
|
msg->msg_data.info->cSignerInfo * sizeof(CMSG_SIGNER_INFO));
|
|
ret = CSignedMsgData_AllocateHandles(&msg->msg_data);
|
|
for (i = 0; ret && i < msg->msg_data.info->cSignerInfo; i++)
|
|
{
|
|
ret = CSignerInfo_Construct(
|
|
&msg->msg_data.info->rgSignerInfo[i],
|
|
&info->rgSigners[i]);
|
|
if (ret)
|
|
{
|
|
ret = CSignedMsgData_ConstructSignerHandles(
|
|
&msg->msg_data, i, info->rgSigners[i].hCryptProv);
|
|
if (dwFlags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
|
|
CryptReleaseContext(info->rgSigners[i].hCryptProv,
|
|
0);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
if (ret)
|
|
ret = CRYPT_ConstructBlobArray(
|
|
(BlobArray *)&msg->msg_data.info->cCertEncoded,
|
|
(const BlobArray *)&info->cCertEncoded);
|
|
if (ret)
|
|
ret = CRYPT_ConstructBlobArray(
|
|
(BlobArray *)&msg->msg_data.info->cCrlEncoded,
|
|
(const BlobArray *)&info->cCrlEncoded);
|
|
if (!ret)
|
|
{
|
|
CSignedEncodeMsg_Close(msg);
|
|
msg = NULL;
|
|
}
|
|
}
|
|
return msg;
|
|
}
|
|
|
|
static inline const char *MSG_TYPE_STR(DWORD type)
|
|
{
|
|
switch (type)
|
|
{
|
|
#define _x(x) case (x): return #x
|
|
_x(CMSG_DATA);
|
|
_x(CMSG_SIGNED);
|
|
_x(CMSG_ENVELOPED);
|
|
_x(CMSG_SIGNED_AND_ENVELOPED);
|
|
_x(CMSG_HASHED);
|
|
_x(CMSG_ENCRYPTED);
|
|
#undef _x
|
|
default:
|
|
return wine_dbg_sprintf("unknown (%d)", type);
|
|
}
|
|
}
|
|
|
|
HCRYPTMSG WINAPI CryptMsgOpenToEncode(DWORD dwMsgEncodingType, DWORD dwFlags,
|
|
DWORD dwMsgType, const void *pvMsgEncodeInfo, LPSTR pszInnerContentObjID,
|
|
PCMSG_STREAM_INFO pStreamInfo)
|
|
{
|
|
HCRYPTMSG msg = NULL;
|
|
|
|
TRACE("(%08x, %08x, %08x, %p, %s, %p)\n", dwMsgEncodingType, dwFlags,
|
|
dwMsgType, pvMsgEncodeInfo, debugstr_a(pszInnerContentObjID), pStreamInfo);
|
|
|
|
if (GET_CMSG_ENCODING_TYPE(dwMsgEncodingType) != PKCS_7_ASN_ENCODING)
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
return NULL;
|
|
}
|
|
switch (dwMsgType)
|
|
{
|
|
case CMSG_DATA:
|
|
msg = CDataEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
|
|
pszInnerContentObjID, pStreamInfo);
|
|
break;
|
|
case CMSG_HASHED:
|
|
msg = CHashEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
|
|
pszInnerContentObjID, pStreamInfo);
|
|
break;
|
|
case CMSG_SIGNED:
|
|
msg = CSignedEncodeMsg_Open(dwFlags, pvMsgEncodeInfo,
|
|
pszInnerContentObjID, pStreamInfo);
|
|
break;
|
|
case CMSG_ENVELOPED:
|
|
FIXME("unimplemented for type %s\n", MSG_TYPE_STR(dwMsgType));
|
|
break;
|
|
case CMSG_SIGNED_AND_ENVELOPED:
|
|
case CMSG_ENCRYPTED:
|
|
/* defined but invalid, fall through */
|
|
default:
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
}
|
|
return msg;
|
|
}
|
|
|
|
typedef struct _CDecodeMsg
|
|
{
|
|
CryptMsgBase base;
|
|
DWORD type;
|
|
HCRYPTPROV crypt_prov;
|
|
union {
|
|
HCRYPTHASH hash;
|
|
CSignedMsgData signed_data;
|
|
} u;
|
|
CRYPT_DATA_BLOB msg_data;
|
|
PCONTEXT_PROPERTY_LIST properties;
|
|
} CDecodeMsg;
|
|
|
|
static void CDecodeMsg_Close(HCRYPTMSG hCryptMsg)
|
|
{
|
|
CDecodeMsg *msg = (CDecodeMsg *)hCryptMsg;
|
|
|
|
if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
|
|
CryptReleaseContext(msg->crypt_prov, 0);
|
|
switch (msg->type)
|
|
{
|
|
case CMSG_HASHED:
|
|
if (msg->u.hash)
|
|
CryptDestroyHash(msg->u.hash);
|
|
break;
|
|
case CMSG_SIGNED:
|
|
if (msg->u.signed_data.info)
|
|
{
|
|
LocalFree(msg->u.signed_data.info);
|
|
CSignedMsgData_CloseHandles(&msg->u.signed_data);
|
|
}
|
|
break;
|
|
}
|
|
CryptMemFree(msg->msg_data.pbData);
|
|
ContextPropertyList_Free(msg->properties);
|
|
}
|
|
|
|
static BOOL CDecodeMsg_CopyData(CDecodeMsg *msg, const BYTE *pbData,
|
|
DWORD cbData)
|
|
{
|
|
BOOL ret = TRUE;
|
|
|
|
if (cbData)
|
|
{
|
|
if (msg->msg_data.cbData)
|
|
msg->msg_data.pbData = CryptMemRealloc(msg->msg_data.pbData,
|
|
msg->msg_data.cbData + cbData);
|
|
else
|
|
msg->msg_data.pbData = CryptMemAlloc(cbData);
|
|
if (msg->msg_data.pbData)
|
|
{
|
|
memcpy(msg->msg_data.pbData + msg->msg_data.cbData, pbData, cbData);
|
|
msg->msg_data.cbData += cbData;
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CDecodeMsg_DecodeDataContent(CDecodeMsg *msg, CRYPT_DER_BLOB *blob)
|
|
{
|
|
BOOL ret;
|
|
CRYPT_DATA_BLOB *data;
|
|
DWORD size;
|
|
|
|
ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
|
|
blob->pbData, blob->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, (LPBYTE)&data,
|
|
&size);
|
|
if (ret)
|
|
{
|
|
ret = ContextPropertyList_SetProperty(msg->properties,
|
|
CMSG_CONTENT_PARAM, data->pbData, data->cbData);
|
|
LocalFree(data);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void CDecodeMsg_SaveAlgorithmID(CDecodeMsg *msg, DWORD param,
|
|
const CRYPT_ALGORITHM_IDENTIFIER *id)
|
|
{
|
|
static const BYTE nullParams[] = { ASN_NULL, 0 };
|
|
CRYPT_ALGORITHM_IDENTIFIER *copy;
|
|
DWORD len = sizeof(CRYPT_ALGORITHM_IDENTIFIER);
|
|
|
|
/* Linearize algorithm id */
|
|
len += strlen(id->pszObjId) + 1;
|
|
len += id->Parameters.cbData;
|
|
copy = CryptMemAlloc(len);
|
|
if (copy)
|
|
{
|
|
copy->pszObjId =
|
|
(LPSTR)((BYTE *)copy + sizeof(CRYPT_ALGORITHM_IDENTIFIER));
|
|
strcpy(copy->pszObjId, id->pszObjId);
|
|
copy->Parameters.pbData = (BYTE *)copy->pszObjId + strlen(id->pszObjId)
|
|
+ 1;
|
|
/* Trick: omit NULL parameters */
|
|
if (id->Parameters.cbData == sizeof(nullParams) &&
|
|
!memcmp(id->Parameters.pbData, nullParams, sizeof(nullParams)))
|
|
{
|
|
copy->Parameters.cbData = 0;
|
|
len -= sizeof(nullParams);
|
|
}
|
|
else
|
|
copy->Parameters.cbData = id->Parameters.cbData;
|
|
if (copy->Parameters.cbData)
|
|
memcpy(copy->Parameters.pbData, id->Parameters.pbData,
|
|
id->Parameters.cbData);
|
|
ContextPropertyList_SetProperty(msg->properties, param, (BYTE *)copy,
|
|
len);
|
|
CryptMemFree(copy);
|
|
}
|
|
}
|
|
|
|
static inline void CRYPT_FixUpAlgorithmID(CRYPT_ALGORITHM_IDENTIFIER *id)
|
|
{
|
|
id->pszObjId = (LPSTR)((BYTE *)id + sizeof(CRYPT_ALGORITHM_IDENTIFIER));
|
|
id->Parameters.pbData = (BYTE *)id->pszObjId + strlen(id->pszObjId) + 1;
|
|
}
|
|
|
|
static BOOL CDecodeMsg_DecodeHashedContent(CDecodeMsg *msg,
|
|
CRYPT_DER_BLOB *blob)
|
|
{
|
|
BOOL ret;
|
|
CRYPT_DIGESTED_DATA *digestedData;
|
|
DWORD size;
|
|
|
|
ret = CRYPT_AsnDecodePKCSDigestedData(blob->pbData, blob->cbData,
|
|
CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_DIGESTED_DATA *)&digestedData,
|
|
&size);
|
|
if (ret)
|
|
{
|
|
ContextPropertyList_SetProperty(msg->properties, CMSG_VERSION_PARAM,
|
|
(const BYTE *)&digestedData->version, sizeof(digestedData->version));
|
|
CDecodeMsg_SaveAlgorithmID(msg, CMSG_HASH_ALGORITHM_PARAM,
|
|
&digestedData->DigestAlgorithm);
|
|
ContextPropertyList_SetProperty(msg->properties,
|
|
CMSG_INNER_CONTENT_TYPE_PARAM,
|
|
(const BYTE *)digestedData->ContentInfo.pszObjId,
|
|
digestedData->ContentInfo.pszObjId ?
|
|
strlen(digestedData->ContentInfo.pszObjId) + 1 : 0);
|
|
if (digestedData->ContentInfo.Content.cbData)
|
|
CDecodeMsg_DecodeDataContent(msg,
|
|
&digestedData->ContentInfo.Content);
|
|
else
|
|
ContextPropertyList_SetProperty(msg->properties,
|
|
CMSG_CONTENT_PARAM, NULL, 0);
|
|
ContextPropertyList_SetProperty(msg->properties, CMSG_HASH_DATA_PARAM,
|
|
digestedData->hash.pbData, digestedData->hash.cbData);
|
|
LocalFree(digestedData);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CDecodeMsg_DecodeSignedContent(CDecodeMsg *msg,
|
|
CRYPT_DER_BLOB *blob)
|
|
{
|
|
BOOL ret;
|
|
CRYPT_SIGNED_INFO *signedInfo;
|
|
DWORD size;
|
|
|
|
ret = CRYPT_AsnDecodePKCSSignedInfo(blob->pbData, blob->cbData,
|
|
CRYPT_DECODE_ALLOC_FLAG, NULL, (CRYPT_SIGNED_INFO *)&signedInfo,
|
|
&size);
|
|
if (ret)
|
|
{
|
|
DWORD i;
|
|
|
|
msg->u.signed_data.info = signedInfo;
|
|
ret = CSignedMsgData_AllocateHandles(&msg->u.signed_data);
|
|
for (i = 0; ret && i < msg->u.signed_data.info->cSignerInfo; i++)
|
|
ret = CSignedMsgData_ConstructSignerHandles(&msg->u.signed_data, i,
|
|
msg->crypt_prov);
|
|
if (ret)
|
|
{
|
|
/* Now that we have all the content, update the hash handles with
|
|
* it. Have to decode it if the type is szOID_RSA_data.
|
|
*/
|
|
if (msg->u.signed_data.info->content.Content.cbData)
|
|
{
|
|
if (!strcmp(msg->u.signed_data.info->content.pszObjId,
|
|
szOID_RSA_data))
|
|
{
|
|
CRYPT_DATA_BLOB *blob;
|
|
|
|
ret = CryptDecodeObjectEx(X509_ASN_ENCODING,
|
|
X509_OCTET_STRING,
|
|
msg->u.signed_data.info->content.Content.pbData,
|
|
msg->u.signed_data.info->content.Content.cbData,
|
|
CRYPT_DECODE_ALLOC_FLAG, NULL, (LPBYTE)&blob, &size);
|
|
if (ret)
|
|
{
|
|
ret = CSignedMsgData_Update(&msg->u.signed_data,
|
|
blob->pbData, blob->cbData, TRUE, Verify);
|
|
LocalFree(blob);
|
|
}
|
|
}
|
|
else
|
|
ret = CSignedMsgData_Update(&msg->u.signed_data,
|
|
msg->u.signed_data.info->content.Content.pbData,
|
|
msg->u.signed_data.info->content.Content.cbData, TRUE,
|
|
Verify);
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
/* Decodes the content in blob as the type given, and updates the value
|
|
* (type, parameters, etc.) of msg based on what blob contains.
|
|
* It doesn't just use msg's type, to allow a recursive call from an implicitly
|
|
* typed message once the outer content info has been decoded.
|
|
*/
|
|
static BOOL CDecodeMsg_DecodeContent(CDecodeMsg *msg, CRYPT_DER_BLOB *blob,
|
|
DWORD type)
|
|
{
|
|
BOOL ret;
|
|
|
|
switch (type)
|
|
{
|
|
case CMSG_DATA:
|
|
if ((ret = CDecodeMsg_DecodeDataContent(msg, blob)))
|
|
msg->type = CMSG_DATA;
|
|
break;
|
|
case CMSG_HASHED:
|
|
if ((ret = CDecodeMsg_DecodeHashedContent(msg, blob)))
|
|
msg->type = CMSG_HASHED;
|
|
break;
|
|
case CMSG_ENVELOPED:
|
|
FIXME("unimplemented for type %s\n", MSG_TYPE_STR(type));
|
|
ret = TRUE;
|
|
break;
|
|
case CMSG_SIGNED:
|
|
if ((ret = CDecodeMsg_DecodeSignedContent(msg, blob)))
|
|
msg->type = CMSG_SIGNED;
|
|
break;
|
|
default:
|
|
{
|
|
CRYPT_CONTENT_INFO *info;
|
|
DWORD size;
|
|
|
|
ret = CryptDecodeObjectEx(X509_ASN_ENCODING, PKCS_CONTENT_INFO,
|
|
msg->msg_data.pbData, msg->msg_data.cbData, CRYPT_DECODE_ALLOC_FLAG,
|
|
NULL, (LPBYTE)&info, &size);
|
|
if (ret)
|
|
{
|
|
if (!strcmp(info->pszObjId, szOID_RSA_data))
|
|
ret = CDecodeMsg_DecodeContent(msg, &info->Content, CMSG_DATA);
|
|
else if (!strcmp(info->pszObjId, szOID_RSA_digestedData))
|
|
ret = CDecodeMsg_DecodeContent(msg, &info->Content,
|
|
CMSG_HASHED);
|
|
else if (!strcmp(info->pszObjId, szOID_RSA_envelopedData))
|
|
ret = CDecodeMsg_DecodeContent(msg, &info->Content,
|
|
CMSG_ENVELOPED);
|
|
else if (!strcmp(info->pszObjId, szOID_RSA_signedData))
|
|
ret = CDecodeMsg_DecodeContent(msg, &info->Content,
|
|
CMSG_SIGNED);
|
|
else
|
|
{
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
ret = FALSE;
|
|
}
|
|
LocalFree(info);
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CDecodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
|
|
DWORD cbData, BOOL fFinal)
|
|
{
|
|
CDecodeMsg *msg = (CDecodeMsg *)hCryptMsg;
|
|
BOOL ret = FALSE;
|
|
|
|
TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
|
|
|
|
if (msg->base.streamed)
|
|
{
|
|
ret = CDecodeMsg_CopyData(msg, pbData, cbData);
|
|
FIXME("(%p, %p, %d, %d): streamed update stub\n", hCryptMsg, pbData,
|
|
cbData, fFinal);
|
|
}
|
|
else
|
|
{
|
|
if (!fFinal)
|
|
SetLastError(CRYPT_E_MSG_ERROR);
|
|
else
|
|
{
|
|
ret = CDecodeMsg_CopyData(msg, pbData, cbData);
|
|
if (ret)
|
|
ret = CDecodeMsg_DecodeContent(msg, &msg->msg_data, msg->type);
|
|
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CDecodeHashMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
|
|
DWORD dwIndex, void *pvData, DWORD *pcbData)
|
|
{
|
|
BOOL ret = FALSE;
|
|
|
|
switch (dwParamType)
|
|
{
|
|
case CMSG_TYPE_PARAM:
|
|
ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
|
|
break;
|
|
case CMSG_HASH_ALGORITHM_PARAM:
|
|
{
|
|
CRYPT_DATA_BLOB blob;
|
|
|
|
ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
|
|
&blob);
|
|
if (ret)
|
|
{
|
|
ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
|
|
if (ret && pvData)
|
|
CRYPT_FixUpAlgorithmID((CRYPT_ALGORITHM_IDENTIFIER *)pvData);
|
|
}
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
}
|
|
case CMSG_COMPUTED_HASH_PARAM:
|
|
if (!msg->u.hash)
|
|
{
|
|
CRYPT_ALGORITHM_IDENTIFIER *hashAlgoID = NULL;
|
|
DWORD size = 0;
|
|
ALG_ID algID = 0;
|
|
|
|
CryptMsgGetParam(msg, CMSG_HASH_ALGORITHM_PARAM, 0, NULL, &size);
|
|
hashAlgoID = CryptMemAlloc(size);
|
|
ret = CryptMsgGetParam(msg, CMSG_HASH_ALGORITHM_PARAM, 0,
|
|
hashAlgoID, &size);
|
|
if (ret)
|
|
algID = CertOIDToAlgId(hashAlgoID->pszObjId);
|
|
ret = CryptCreateHash(msg->crypt_prov, algID, 0, 0, &msg->u.hash);
|
|
if (ret)
|
|
{
|
|
CRYPT_DATA_BLOB content;
|
|
|
|
ret = ContextPropertyList_FindProperty(msg->properties,
|
|
CMSG_CONTENT_PARAM, &content);
|
|
if (ret)
|
|
ret = CryptHashData(msg->u.hash, content.pbData,
|
|
content.cbData, 0);
|
|
}
|
|
CryptMemFree(hashAlgoID);
|
|
}
|
|
else
|
|
ret = TRUE;
|
|
if (ret)
|
|
ret = CryptGetHashParam(msg->u.hash, HP_HASHVAL, pvData, pcbData,
|
|
0);
|
|
break;
|
|
default:
|
|
{
|
|
CRYPT_DATA_BLOB blob;
|
|
|
|
ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
|
|
&blob);
|
|
if (ret)
|
|
ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* nextData is an in/out parameter - on input it's the memory location in
|
|
* which a copy of in's data should be made, and on output it's the memory
|
|
* location immediately after out's copy of in's data.
|
|
*/
|
|
static inline void CRYPT_CopyBlob(CRYPT_DATA_BLOB *out,
|
|
const CRYPT_DATA_BLOB *in, LPBYTE *nextData)
|
|
{
|
|
out->cbData = in->cbData;
|
|
if (in->cbData)
|
|
{
|
|
out->pbData = *nextData;
|
|
memcpy(out->pbData, in->pbData, in->cbData);
|
|
*nextData += in->cbData;
|
|
}
|
|
}
|
|
|
|
static inline void CRYPT_CopyAlgorithmId(CRYPT_ALGORITHM_IDENTIFIER *out,
|
|
const CRYPT_ALGORITHM_IDENTIFIER *in, LPBYTE *nextData)
|
|
{
|
|
if (in->pszObjId)
|
|
{
|
|
out->pszObjId = (LPSTR)*nextData;
|
|
strcpy(out->pszObjId, in->pszObjId);
|
|
*nextData += strlen(out->pszObjId) + 1;
|
|
}
|
|
CRYPT_CopyBlob(&out->Parameters, &in->Parameters, nextData);
|
|
}
|
|
|
|
static inline void CRYPT_CopyAttributes(CRYPT_ATTRIBUTES *out,
|
|
const CRYPT_ATTRIBUTES *in, LPBYTE *nextData)
|
|
{
|
|
out->cAttr = in->cAttr;
|
|
if (in->cAttr)
|
|
{
|
|
DWORD i;
|
|
|
|
if ((*nextData - (LPBYTE)0) % sizeof(DWORD))
|
|
*nextData += (*nextData - (LPBYTE)0) % sizeof(DWORD);
|
|
out->rgAttr = (CRYPT_ATTRIBUTE *)*nextData;
|
|
*nextData += in->cAttr * sizeof(CRYPT_ATTRIBUTE);
|
|
for (i = 0; i < in->cAttr; i++)
|
|
{
|
|
if (in->rgAttr[i].pszObjId)
|
|
{
|
|
out->rgAttr[i].pszObjId = (LPSTR)*nextData;
|
|
strcpy(out->rgAttr[i].pszObjId, in->rgAttr[i].pszObjId);
|
|
*nextData += strlen(in->rgAttr[i].pszObjId) + 1;
|
|
}
|
|
if (in->rgAttr[i].cValue)
|
|
{
|
|
DWORD j;
|
|
|
|
out->rgAttr[i].cValue = in->rgAttr[i].cValue;
|
|
if ((*nextData - (LPBYTE)0) % sizeof(DWORD))
|
|
*nextData += (*nextData - (LPBYTE)0) % sizeof(DWORD);
|
|
out->rgAttr[i].rgValue = (PCRYPT_DATA_BLOB)*nextData;
|
|
for (j = 0; j < in->rgAttr[i].cValue; j++)
|
|
CRYPT_CopyBlob(&out->rgAttr[i].rgValue[j],
|
|
&in->rgAttr[i].rgValue[j], nextData);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static DWORD CRYPT_SizeOfAttributes(const CRYPT_ATTRIBUTES *attr)
|
|
{
|
|
DWORD size = attr->cAttr * sizeof(CRYPT_ATTRIBUTE), i, j;
|
|
|
|
for (i = 0; i < attr->cAttr; i++)
|
|
{
|
|
if (attr->rgAttr[i].pszObjId)
|
|
size += strlen(attr->rgAttr[i].pszObjId) + 1;
|
|
/* align pointer */
|
|
if (size % sizeof(DWORD))
|
|
size += size % sizeof(DWORD);
|
|
size += attr->rgAttr[i].cValue * sizeof(CRYPT_DATA_BLOB);
|
|
for (j = 0; j < attr->rgAttr[i].cValue; j++)
|
|
size += attr->rgAttr[i].rgValue[j].cbData;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
static BOOL CRYPT_CopySignerInfo(void *pvData, DWORD *pcbData,
|
|
const CMSG_SIGNER_INFO *in)
|
|
{
|
|
DWORD size = sizeof(CMSG_SIGNER_INFO);
|
|
BOOL ret;
|
|
|
|
size += in->Issuer.cbData;
|
|
size += in->SerialNumber.cbData;
|
|
if (in->HashAlgorithm.pszObjId)
|
|
size += strlen(in->HashAlgorithm.pszObjId) + 1;
|
|
size += in->HashAlgorithm.Parameters.cbData;
|
|
if (in->HashEncryptionAlgorithm.pszObjId)
|
|
size += strlen(in->HashEncryptionAlgorithm.pszObjId) + 1;
|
|
size += in->HashEncryptionAlgorithm.Parameters.cbData;
|
|
size += in->EncryptedHash.cbData;
|
|
/* align pointer */
|
|
if (size % sizeof(DWORD))
|
|
size += size % sizeof(DWORD);
|
|
size += CRYPT_SizeOfAttributes(&in->AuthAttrs);
|
|
size += CRYPT_SizeOfAttributes(&in->UnauthAttrs);
|
|
if (!pvData)
|
|
{
|
|
*pcbData = size;
|
|
ret = TRUE;
|
|
}
|
|
else if (*pcbData < size)
|
|
{
|
|
*pcbData = size;
|
|
SetLastError(ERROR_MORE_DATA);
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
LPBYTE nextData = (BYTE *)pvData + sizeof(CMSG_SIGNER_INFO);
|
|
CMSG_SIGNER_INFO *out = (CMSG_SIGNER_INFO *)pvData;
|
|
|
|
out->dwVersion = in->dwVersion;
|
|
CRYPT_CopyBlob(&out->Issuer, &in->Issuer, &nextData);
|
|
CRYPT_CopyBlob(&out->SerialNumber, &in->SerialNumber, &nextData);
|
|
CRYPT_CopyAlgorithmId(&out->HashAlgorithm, &in->HashAlgorithm,
|
|
&nextData);
|
|
CRYPT_CopyAlgorithmId(&out->HashEncryptionAlgorithm,
|
|
&in->HashEncryptionAlgorithm, &nextData);
|
|
CRYPT_CopyBlob(&out->EncryptedHash, &in->EncryptedHash, &nextData);
|
|
/* align pointer */
|
|
if ((nextData - (LPBYTE)0) % sizeof(DWORD))
|
|
nextData += (nextData - (LPBYTE)0) % sizeof(DWORD);
|
|
CRYPT_CopyAttributes(&out->AuthAttrs, &in->AuthAttrs, &nextData);
|
|
CRYPT_CopyAttributes(&out->UnauthAttrs, &in->UnauthAttrs, &nextData);
|
|
ret = TRUE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CRYPT_CopySignerCertInfo(void *pvData, DWORD *pcbData,
|
|
const CMSG_SIGNER_INFO *in)
|
|
{
|
|
DWORD size = sizeof(CERT_INFO);
|
|
BOOL ret;
|
|
|
|
size += in->Issuer.cbData;
|
|
size += in->SerialNumber.cbData;
|
|
if (!pvData)
|
|
{
|
|
*pcbData = size;
|
|
ret = TRUE;
|
|
}
|
|
else if (*pcbData < size)
|
|
{
|
|
*pcbData = size;
|
|
SetLastError(ERROR_MORE_DATA);
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
LPBYTE nextData = (BYTE *)pvData + sizeof(CERT_INFO);
|
|
CERT_INFO *out = (CERT_INFO *)pvData;
|
|
|
|
memset(out, 0, sizeof(CERT_INFO));
|
|
CRYPT_CopyBlob(&out->Issuer, &in->Issuer, &nextData);
|
|
CRYPT_CopyBlob(&out->SerialNumber, &in->SerialNumber, &nextData);
|
|
ret = TRUE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CDecodeSignedMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
|
|
DWORD dwIndex, void *pvData, DWORD *pcbData)
|
|
{
|
|
BOOL ret = FALSE;
|
|
|
|
switch (dwParamType)
|
|
{
|
|
case CMSG_TYPE_PARAM:
|
|
ret = CRYPT_CopyParam(pvData, pcbData, &msg->type, sizeof(msg->type));
|
|
break;
|
|
case CMSG_CONTENT_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
{
|
|
if (!strcmp(msg->u.signed_data.info->content.pszObjId,
|
|
szOID_RSA_data))
|
|
{
|
|
CRYPT_DATA_BLOB *blob;
|
|
DWORD size;
|
|
|
|
ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_OCTET_STRING,
|
|
msg->u.signed_data.info->content.Content.pbData,
|
|
msg->u.signed_data.info->content.Content.cbData,
|
|
CRYPT_DECODE_ALLOC_FLAG, NULL, (LPBYTE)&blob, &size);
|
|
if (ret)
|
|
{
|
|
ret = CRYPT_CopyParam(pvData, pcbData, blob->pbData,
|
|
blob->cbData);
|
|
LocalFree(blob);
|
|
}
|
|
}
|
|
else
|
|
ret = CRYPT_CopyParam(pvData, pcbData,
|
|
msg->u.signed_data.info->content.Content.pbData,
|
|
msg->u.signed_data.info->content.Content.cbData);
|
|
}
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
case CMSG_INNER_CONTENT_TYPE_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
ret = CRYPT_CopyParam(pvData, pcbData,
|
|
msg->u.signed_data.info->content.pszObjId,
|
|
strlen(msg->u.signed_data.info->content.pszObjId) + 1);
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
case CMSG_SIGNER_COUNT_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
ret = CRYPT_CopyParam(pvData, pcbData,
|
|
&msg->u.signed_data.info->cSignerInfo, sizeof(DWORD));
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
case CMSG_SIGNER_INFO_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
{
|
|
if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
|
|
SetLastError(CRYPT_E_INVALID_INDEX);
|
|
else
|
|
ret = CRYPT_CopySignerInfo(pvData, pcbData,
|
|
&msg->u.signed_data.info->rgSignerInfo[dwIndex]);
|
|
}
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
case CMSG_SIGNER_CERT_INFO_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
{
|
|
if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
|
|
SetLastError(CRYPT_E_INVALID_INDEX);
|
|
else
|
|
ret = CRYPT_CopySignerCertInfo(pvData, pcbData,
|
|
&msg->u.signed_data.info->rgSignerInfo[dwIndex]);
|
|
}
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
case CMSG_CERT_COUNT_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
ret = CRYPT_CopyParam(pvData, pcbData,
|
|
&msg->u.signed_data.info->cCertEncoded, sizeof(DWORD));
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
case CMSG_CERT_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
{
|
|
if (dwIndex >= msg->u.signed_data.info->cCertEncoded)
|
|
SetLastError(CRYPT_E_INVALID_INDEX);
|
|
else
|
|
ret = CRYPT_CopyParam(pvData, pcbData,
|
|
msg->u.signed_data.info->rgCertEncoded[dwIndex].pbData,
|
|
msg->u.signed_data.info->rgCertEncoded[dwIndex].cbData);
|
|
}
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
case CMSG_CRL_COUNT_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
ret = CRYPT_CopyParam(pvData, pcbData,
|
|
&msg->u.signed_data.info->cCrlEncoded, sizeof(DWORD));
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
case CMSG_CRL_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
{
|
|
if (dwIndex >= msg->u.signed_data.info->cCrlEncoded)
|
|
SetLastError(CRYPT_E_INVALID_INDEX);
|
|
else
|
|
ret = CRYPT_CopyParam(pvData, pcbData,
|
|
msg->u.signed_data.info->rgCrlEncoded[dwIndex].pbData,
|
|
msg->u.signed_data.info->rgCrlEncoded[dwIndex].cbData);
|
|
}
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
case CMSG_COMPUTED_HASH_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
{
|
|
if (dwIndex >= msg->u.signed_data.info->cSignerInfo)
|
|
SetLastError(CRYPT_E_INVALID_INDEX);
|
|
else
|
|
ret = CryptGetHashParam(
|
|
msg->u.signed_data.signerHandles[dwIndex].contentHash,
|
|
HP_HASHVAL, pvData, pcbData, 0);
|
|
}
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
case CMSG_ATTR_CERT_COUNT_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
{
|
|
DWORD attrCertCount = 0;
|
|
|
|
ret = CRYPT_CopyParam(pvData, pcbData,
|
|
&attrCertCount, sizeof(DWORD));
|
|
}
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
case CMSG_ATTR_CERT_PARAM:
|
|
if (msg->u.signed_data.info)
|
|
SetLastError(CRYPT_E_INVALID_INDEX);
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
break;
|
|
default:
|
|
FIXME("unimplemented for %d\n", dwParamType);
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
|
|
DWORD dwIndex, void *pvData, DWORD *pcbData)
|
|
{
|
|
CDecodeMsg *msg = (CDecodeMsg *)hCryptMsg;
|
|
BOOL ret = FALSE;
|
|
|
|
switch (msg->type)
|
|
{
|
|
case CMSG_HASHED:
|
|
ret = CDecodeHashMsg_GetParam(msg, dwParamType, dwIndex, pvData,
|
|
pcbData);
|
|
break;
|
|
case CMSG_SIGNED:
|
|
ret = CDecodeSignedMsg_GetParam(msg, dwParamType, dwIndex, pvData,
|
|
pcbData);
|
|
break;
|
|
default:
|
|
switch (dwParamType)
|
|
{
|
|
case CMSG_TYPE_PARAM:
|
|
ret = CRYPT_CopyParam(pvData, pcbData, &msg->type,
|
|
sizeof(msg->type));
|
|
break;
|
|
default:
|
|
{
|
|
CRYPT_DATA_BLOB blob;
|
|
|
|
ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
|
|
&blob);
|
|
if (ret)
|
|
ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData,
|
|
blob.cbData);
|
|
else
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CDecodeHashMsg_VerifyHash(CDecodeMsg *msg)
|
|
{
|
|
BOOL ret;
|
|
CRYPT_DATA_BLOB hashBlob;
|
|
|
|
ret = ContextPropertyList_FindProperty(msg->properties,
|
|
CMSG_HASH_DATA_PARAM, &hashBlob);
|
|
if (ret)
|
|
{
|
|
DWORD computedHashSize = 0;
|
|
|
|
ret = CDecodeHashMsg_GetParam(msg, CMSG_COMPUTED_HASH_PARAM, 0, NULL,
|
|
&computedHashSize);
|
|
if (hashBlob.cbData == computedHashSize)
|
|
{
|
|
LPBYTE computedHash = CryptMemAlloc(computedHashSize);
|
|
|
|
if (computedHash)
|
|
{
|
|
ret = CDecodeHashMsg_GetParam(msg, CMSG_COMPUTED_HASH_PARAM, 0,
|
|
computedHash, &computedHashSize);
|
|
if (ret)
|
|
ret = !memcmp(hashBlob.pbData, computedHash,
|
|
hashBlob.cbData);
|
|
CryptMemFree(computedHash);
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CDecodeSignedMsg_VerifySignatureWithKey(CDecodeMsg *msg,
|
|
HCRYPTPROV prov, DWORD signerIndex, PCERT_PUBLIC_KEY_INFO keyInfo)
|
|
{
|
|
HCRYPTKEY key;
|
|
BOOL ret;
|
|
|
|
if (!prov)
|
|
prov = msg->crypt_prov;
|
|
ret = CryptImportPublicKeyInfo(prov, X509_ASN_ENCODING, keyInfo, &key);
|
|
if (ret)
|
|
{
|
|
HCRYPTHASH hash;
|
|
CRYPT_HASH_BLOB reversedHash;
|
|
|
|
if (msg->u.signed_data.info->rgSignerInfo[signerIndex].AuthAttrs.cAttr)
|
|
hash = msg->u.signed_data.signerHandles[signerIndex].authAttrHash;
|
|
else
|
|
hash = msg->u.signed_data.signerHandles[signerIndex].contentHash;
|
|
ret = CRYPT_ConstructBlob(&reversedHash,
|
|
&msg->u.signed_data.info->rgSignerInfo[signerIndex].EncryptedHash);
|
|
if (ret)
|
|
{
|
|
CRYPT_ReverseBytes(&reversedHash);
|
|
ret = CryptVerifySignatureW(hash, reversedHash.pbData,
|
|
reversedHash.cbData, key, NULL, 0);
|
|
CryptMemFree(reversedHash.pbData);
|
|
}
|
|
CryptDestroyKey(key);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CDecodeSignedMsg_VerifySignature(CDecodeMsg *msg, PCERT_INFO info)
|
|
{
|
|
BOOL ret = FALSE;
|
|
DWORD i;
|
|
|
|
for (i = 0; !ret && i < msg->u.signed_data.info->cSignerInfo; i++)
|
|
{
|
|
ret = CertCompareCertificateName(X509_ASN_ENCODING,
|
|
&msg->u.signed_data.info->rgSignerInfo[i].Issuer, &info->Issuer);
|
|
if (ret)
|
|
{
|
|
ret = CertCompareIntegerBlob(
|
|
&msg->u.signed_data.info->rgSignerInfo[i].SerialNumber,
|
|
&info->SerialNumber);
|
|
if (ret)
|
|
break;
|
|
}
|
|
}
|
|
if (ret)
|
|
ret = CDecodeSignedMsg_VerifySignatureWithKey(msg, 0, i,
|
|
&info->SubjectPublicKeyInfo);
|
|
else
|
|
SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CDecodeSignedMsg_VerifySignatureEx(CDecodeMsg *msg,
|
|
PCMSG_CTRL_VERIFY_SIGNATURE_EX_PARA para)
|
|
{
|
|
BOOL ret = FALSE;
|
|
|
|
if (para->cbSize != sizeof(CMSG_CTRL_VERIFY_SIGNATURE_EX_PARA))
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
else if (para->dwSignerIndex >= msg->u.signed_data.info->cSignerInfo)
|
|
SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
|
|
else
|
|
{
|
|
switch (para->dwSignerType)
|
|
{
|
|
case CMSG_VERIFY_SIGNER_PUBKEY:
|
|
ret = CDecodeSignedMsg_VerifySignatureWithKey(msg,
|
|
para->hCryptProv, para->dwSignerIndex,
|
|
(PCERT_PUBLIC_KEY_INFO)para->pvSigner);
|
|
break;
|
|
case CMSG_VERIFY_SIGNER_CERT:
|
|
{
|
|
PCCERT_CONTEXT cert = (PCCERT_CONTEXT)para->pvSigner;
|
|
|
|
ret = CDecodeSignedMsg_VerifySignatureWithKey(msg, para->hCryptProv,
|
|
para->dwSignerIndex, &cert->pCertInfo->SubjectPublicKeyInfo);
|
|
break;
|
|
}
|
|
default:
|
|
FIXME("unimplemented for signer type %d\n", para->dwSignerType);
|
|
SetLastError(CRYPT_E_SIGNER_NOT_FOUND);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CDecodeMsg_Control(HCRYPTMSG hCryptMsg, DWORD dwFlags,
|
|
DWORD dwCtrlType, const void *pvCtrlPara)
|
|
{
|
|
CDecodeMsg *msg = (CDecodeMsg *)hCryptMsg;
|
|
BOOL ret = FALSE;
|
|
|
|
switch (dwCtrlType)
|
|
{
|
|
case CMSG_CTRL_VERIFY_SIGNATURE:
|
|
switch (msg->type)
|
|
{
|
|
case CMSG_SIGNED:
|
|
ret = CDecodeSignedMsg_VerifySignature(msg, (PCERT_INFO)pvCtrlPara);
|
|
break;
|
|
default:
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
}
|
|
break;
|
|
case CMSG_CTRL_DECRYPT:
|
|
switch (msg->type)
|
|
{
|
|
default:
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
}
|
|
break;
|
|
case CMSG_CTRL_VERIFY_HASH:
|
|
switch (msg->type)
|
|
{
|
|
case CMSG_HASHED:
|
|
ret = CDecodeHashMsg_VerifyHash(msg);
|
|
break;
|
|
default:
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
}
|
|
break;
|
|
case CMSG_CTRL_VERIFY_SIGNATURE_EX:
|
|
switch (msg->type)
|
|
{
|
|
case CMSG_SIGNED:
|
|
ret = CDecodeSignedMsg_VerifySignatureEx(msg,
|
|
(PCMSG_CTRL_VERIFY_SIGNATURE_EX_PARA)pvCtrlPara);
|
|
break;
|
|
default:
|
|
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
|
|
}
|
|
break;
|
|
default:
|
|
SetLastError(CRYPT_E_CONTROL_TYPE);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
HCRYPTMSG WINAPI CryptMsgOpenToDecode(DWORD dwMsgEncodingType, DWORD dwFlags,
|
|
DWORD dwMsgType, HCRYPTPROV_LEGACY hCryptProv, PCERT_INFO pRecipientInfo,
|
|
PCMSG_STREAM_INFO pStreamInfo)
|
|
{
|
|
CDecodeMsg *msg;
|
|
|
|
TRACE("(%08x, %08x, %08x, %08lx, %p, %p)\n", dwMsgEncodingType,
|
|
dwFlags, dwMsgType, hCryptProv, pRecipientInfo, pStreamInfo);
|
|
|
|
if (GET_CMSG_ENCODING_TYPE(dwMsgEncodingType) != PKCS_7_ASN_ENCODING)
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
return NULL;
|
|
}
|
|
msg = CryptMemAlloc(sizeof(CDecodeMsg));
|
|
if (msg)
|
|
{
|
|
CryptMsgBase_Init((CryptMsgBase *)msg, dwFlags, pStreamInfo,
|
|
CDecodeMsg_Close, CDecodeMsg_GetParam, CDecodeMsg_Update,
|
|
CDecodeMsg_Control);
|
|
msg->type = dwMsgType;
|
|
if (hCryptProv)
|
|
msg->crypt_prov = hCryptProv;
|
|
else
|
|
{
|
|
msg->crypt_prov = CRYPT_GetDefaultProvider();
|
|
msg->base.open_flags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
|
|
}
|
|
memset(&msg->u, 0, sizeof(msg->u));
|
|
msg->msg_data.cbData = 0;
|
|
msg->msg_data.pbData = NULL;
|
|
msg->properties = ContextPropertyList_Create();
|
|
}
|
|
return msg;
|
|
}
|
|
|
|
HCRYPTMSG WINAPI CryptMsgDuplicate(HCRYPTMSG hCryptMsg)
|
|
{
|
|
TRACE("(%p)\n", hCryptMsg);
|
|
|
|
if (hCryptMsg)
|
|
{
|
|
CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
|
|
|
|
InterlockedIncrement(&msg->ref);
|
|
}
|
|
return hCryptMsg;
|
|
}
|
|
|
|
BOOL WINAPI CryptMsgClose(HCRYPTMSG hCryptMsg)
|
|
{
|
|
TRACE("(%p)\n", hCryptMsg);
|
|
|
|
if (hCryptMsg)
|
|
{
|
|
CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
|
|
|
|
if (InterlockedDecrement(&msg->ref) == 0)
|
|
{
|
|
TRACE("freeing %p\n", msg);
|
|
if (msg->close)
|
|
msg->close(msg);
|
|
CryptMemFree(msg);
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL WINAPI CryptMsgUpdate(HCRYPTMSG hCryptMsg, const BYTE *pbData,
|
|
DWORD cbData, BOOL fFinal)
|
|
{
|
|
CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
|
|
BOOL ret = FALSE;
|
|
|
|
TRACE("(%p, %p, %d, %d)\n", hCryptMsg, pbData, cbData, fFinal);
|
|
|
|
if (msg->state == MsgStateFinalized)
|
|
SetLastError(CRYPT_E_MSG_ERROR);
|
|
else
|
|
{
|
|
ret = msg->update(hCryptMsg, pbData, cbData, fFinal);
|
|
msg->state = MsgStateUpdated;
|
|
if (fFinal)
|
|
msg->state = MsgStateFinalized;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
BOOL WINAPI CryptMsgGetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
|
|
DWORD dwIndex, void *pvData, DWORD *pcbData)
|
|
{
|
|
CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
|
|
|
|
TRACE("(%p, %d, %d, %p, %p)\n", hCryptMsg, dwParamType, dwIndex,
|
|
pvData, pcbData);
|
|
return msg->get_param(hCryptMsg, dwParamType, dwIndex, pvData, pcbData);
|
|
}
|
|
|
|
BOOL WINAPI CryptMsgControl(HCRYPTMSG hCryptMsg, DWORD dwFlags,
|
|
DWORD dwCtrlType, const void *pvCtrlPara)
|
|
{
|
|
CryptMsgBase *msg = (CryptMsgBase *)hCryptMsg;
|
|
|
|
TRACE("(%p, %08x, %d, %p)\n", hCryptMsg, dwFlags, dwCtrlType,
|
|
pvCtrlPara);
|
|
return msg->control(hCryptMsg, dwFlags, dwCtrlType, pvCtrlPara);
|
|
}
|
|
|
|
HCERTSTORE WINAPI CryptGetMessageCertificates(DWORD dwMsgAndCertEncodingType,
|
|
HCRYPTPROV_LEGACY hCryptProv, DWORD dwFlags, const BYTE* pbSignedBlob,
|
|
DWORD cbSignedBlob)
|
|
{
|
|
CRYPT_DATA_BLOB blob = { cbSignedBlob, (LPBYTE)pbSignedBlob };
|
|
|
|
TRACE("(%08x, %ld, %d08x %p, %d)\n", dwMsgAndCertEncodingType, hCryptProv,
|
|
dwFlags, pbSignedBlob, cbSignedBlob);
|
|
|
|
return CertOpenStore(CERT_STORE_PROV_PKCS7, dwMsgAndCertEncodingType,
|
|
hCryptProv, dwFlags, &blob);
|
|
}
|
|
|
|
LONG WINAPI CryptGetMessageSignerCount(DWORD dwMsgEncodingType,
|
|
const BYTE *pbSignedBlob, DWORD cbSignedBlob)
|
|
{
|
|
HCRYPTMSG msg;
|
|
LONG count = -1;
|
|
|
|
TRACE("(%08x, %p, %d)\n", dwMsgEncodingType, pbSignedBlob, cbSignedBlob);
|
|
|
|
msg = CryptMsgOpenToDecode(dwMsgEncodingType, 0, 0, 0, NULL, NULL);
|
|
if (msg)
|
|
{
|
|
if (CryptMsgUpdate(msg, pbSignedBlob, cbSignedBlob, TRUE))
|
|
{
|
|
DWORD size = sizeof(count);
|
|
|
|
CryptMsgGetParam(msg, CMSG_SIGNER_COUNT_PARAM, 0, &count, &size);
|
|
}
|
|
CryptMsgClose(msg);
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static CERT_INFO *CRYPT_GetSignerCertInfoFromMsg(HCRYPTMSG msg,
|
|
DWORD dwSignerIndex)
|
|
{
|
|
CERT_INFO *certInfo = NULL;
|
|
DWORD size;
|
|
|
|
if (CryptMsgGetParam(msg, CMSG_SIGNER_CERT_INFO_PARAM, dwSignerIndex, NULL,
|
|
&size))
|
|
{
|
|
certInfo = CryptMemAlloc(size);
|
|
if (certInfo)
|
|
{
|
|
if (!CryptMsgGetParam(msg, CMSG_SIGNER_CERT_INFO_PARAM,
|
|
dwSignerIndex, certInfo, &size))
|
|
{
|
|
CryptMemFree(certInfo);
|
|
certInfo = NULL;
|
|
}
|
|
}
|
|
}
|
|
return certInfo;
|
|
}
|
|
|
|
static PCCERT_CONTEXT WINAPI CRYPT_DefaultGetSignerCertificate(void *pvGetArg,
|
|
DWORD dwCertEncodingType, PCERT_INFO pSignerId, HCERTSTORE hMsgCertStore)
|
|
{
|
|
return CertFindCertificateInStore(hMsgCertStore, dwCertEncodingType, 0,
|
|
CERT_FIND_SUBJECT_CERT, pSignerId, NULL);
|
|
}
|
|
|
|
static inline PCCERT_CONTEXT CRYPT_GetSignerCertificate(HCRYPTMSG msg,
|
|
PCRYPT_VERIFY_MESSAGE_PARA pVerifyPara, PCERT_INFO certInfo, HCERTSTORE store)
|
|
{
|
|
PFN_CRYPT_GET_SIGNER_CERTIFICATE getCert;
|
|
|
|
if (pVerifyPara->pfnGetSignerCertificate)
|
|
getCert = pVerifyPara->pfnGetSignerCertificate;
|
|
else
|
|
getCert = CRYPT_DefaultGetSignerCertificate;
|
|
return getCert(pVerifyPara->pvGetArg,
|
|
pVerifyPara->dwMsgAndCertEncodingType, certInfo, store);
|
|
}
|
|
|
|
BOOL WINAPI CryptVerifyMessageSignature(PCRYPT_VERIFY_MESSAGE_PARA pVerifyPara,
|
|
DWORD dwSignerIndex, const BYTE* pbSignedBlob, DWORD cbSignedBlob,
|
|
BYTE* pbDecoded, DWORD* pcbDecoded, PCCERT_CONTEXT* ppSignerCert)
|
|
{
|
|
BOOL ret = FALSE;
|
|
DWORD size;
|
|
CRYPT_CONTENT_INFO *contentInfo;
|
|
|
|
TRACE("(%p, %d, %p, %d, %p, %p, %p)\n",
|
|
pVerifyPara, dwSignerIndex, pbSignedBlob, cbSignedBlob,
|
|
pbDecoded, pcbDecoded, ppSignerCert);
|
|
|
|
if (ppSignerCert)
|
|
*ppSignerCert = NULL;
|
|
if (pcbDecoded)
|
|
*pcbDecoded = 0;
|
|
if (!pVerifyPara ||
|
|
pVerifyPara->cbSize != sizeof(CRYPT_VERIFY_MESSAGE_PARA) ||
|
|
GET_CMSG_ENCODING_TYPE(pVerifyPara->dwMsgAndCertEncodingType) !=
|
|
PKCS_7_ASN_ENCODING)
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
return FALSE;
|
|
}
|
|
|
|
ret = CryptDecodeObjectEx(pVerifyPara->dwMsgAndCertEncodingType,
|
|
PKCS_CONTENT_INFO, pbSignedBlob, cbSignedBlob,
|
|
CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
|
|
(LPBYTE)&contentInfo, &size);
|
|
if (ret)
|
|
{
|
|
if (strcmp(contentInfo->pszObjId, szOID_RSA_signedData))
|
|
{
|
|
SetLastError(CRYPT_E_UNEXPECTED_MSG_TYPE);
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
HCRYPTMSG msg = CryptMsgOpenToDecode(
|
|
pVerifyPara->dwMsgAndCertEncodingType, 0, CMSG_SIGNED,
|
|
pVerifyPara->hCryptProv, NULL, NULL);
|
|
|
|
if (msg)
|
|
{
|
|
ret = CryptMsgUpdate(msg, contentInfo->Content.pbData,
|
|
contentInfo->Content.cbData, TRUE);
|
|
if (ret && pcbDecoded)
|
|
ret = CRYPT_CopyParam(pbDecoded, pcbDecoded,
|
|
contentInfo->Content.pbData, contentInfo->Content.cbData);
|
|
if (ret)
|
|
{
|
|
CERT_INFO *certInfo = CRYPT_GetSignerCertInfoFromMsg(msg,
|
|
dwSignerIndex);
|
|
|
|
ret = FALSE;
|
|
if (certInfo)
|
|
{
|
|
HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MSG,
|
|
pVerifyPara->dwMsgAndCertEncodingType,
|
|
pVerifyPara->hCryptProv, 0, msg);
|
|
|
|
if (store)
|
|
{
|
|
PCCERT_CONTEXT cert = CRYPT_GetSignerCertificate(
|
|
msg, pVerifyPara, certInfo, store);
|
|
|
|
if (cert)
|
|
{
|
|
ret = CryptMsgControl(msg, 0,
|
|
CMSG_CTRL_VERIFY_SIGNATURE, cert->pCertInfo);
|
|
if (ret && ppSignerCert)
|
|
*ppSignerCert = cert;
|
|
else
|
|
CertFreeCertificateContext(cert);
|
|
}
|
|
CertCloseStore(store, 0);
|
|
}
|
|
}
|
|
CryptMemFree(certInfo);
|
|
}
|
|
CryptMsgClose(msg);
|
|
}
|
|
}
|
|
LocalFree(contentInfo);
|
|
}
|
|
TRACE("returning %d\n", ret);
|
|
return ret;
|
|
}
|