2578 lines
84 KiB
C
2578 lines
84 KiB
C
/*
|
|
* Copyright 2005 Juan Lang
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*
|
|
* This file implements ASN.1 DER encoding of a limited set of types.
|
|
* It isn't a full ASN.1 implementation. Microsoft implements BER
|
|
* encoding of many of the basic types in msasn1.dll, but that interface is
|
|
* undocumented, so I implement them here.
|
|
*
|
|
* References:
|
|
* "A Layman's Guide to a Subset of ASN.1, BER, and DER", by Burton Kaliski
|
|
* (available online, look for a PDF copy as the HTML versions tend to have
|
|
* translation errors.)
|
|
*
|
|
* RFC3280, http://www.faqs.org/rfcs/rfc3280.html
|
|
*
|
|
* MSDN, especially:
|
|
* http://msdn.microsoft.com/library/en-us/seccrypto/security/constants_for_cryptencodeobject_and_cryptdecodeobject.asp
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#define NONAMELESSUNION
|
|
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "excpt.h"
|
|
#include "wincrypt.h"
|
|
#include "winreg.h"
|
|
#include "snmp.h"
|
|
#include "wine/debug.h"
|
|
#include "wine/exception.h"
|
|
#include "crypt32_private.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(crypt);
|
|
|
|
typedef BOOL (WINAPI *CryptEncodeObjectFunc)(DWORD, LPCSTR, const void *,
|
|
BYTE *, DWORD *);
|
|
typedef BOOL (WINAPI *CryptEncodeObjectExFunc)(DWORD, LPCSTR, const void *,
|
|
DWORD, PCRYPT_ENCODE_PARA, BYTE *, DWORD *);
|
|
|
|
/* Prototypes for built-in encoders. They follow the Ex style prototypes.
|
|
* The dwCertEncodingType and lpszStructType are ignored by the built-in
|
|
* functions, but the parameters are retained to simplify CryptEncodeObjectEx,
|
|
* since it must call functions in external DLLs that follow these signatures.
|
|
*/
|
|
static BOOL WINAPI CRYPT_AsnEncodeOid(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
static BOOL WINAPI CRYPT_AsnEncodeExtensions(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
static BOOL WINAPI CRYPT_AsnEncodeSequenceOfAny(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
static BOOL WINAPI CRYPT_AsnEncodeBool(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
static BOOL WINAPI CRYPT_AsnEncodePubKeyInfo(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
static BOOL WINAPI CRYPT_AsnEncodeOctets(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
static BOOL WINAPI CRYPT_AsnEncodeBits(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
static BOOL WINAPI CRYPT_AsnEncodeBitsSwapBytes(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
static BOOL WINAPI CRYPT_AsnEncodeInt(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
static BOOL WINAPI CRYPT_AsnEncodeInteger(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
static BOOL WINAPI CRYPT_AsnEncodeUnsignedInteger(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
static BOOL WINAPI CRYPT_AsnEncodeChoiceOfTime(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
|
|
|
|
BOOL WINAPI CryptEncodeObject(DWORD dwCertEncodingType, LPCSTR lpszStructType,
|
|
const void *pvStructInfo, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
static HCRYPTOIDFUNCSET set = NULL;
|
|
BOOL ret = FALSE;
|
|
HCRYPTOIDFUNCADDR hFunc;
|
|
CryptEncodeObjectFunc pCryptEncodeObject;
|
|
|
|
TRACE("(0x%08lx, %s, %p, %p, %p)\n", dwCertEncodingType,
|
|
debugstr_a(lpszStructType), pvStructInfo, pbEncoded,
|
|
pcbEncoded);
|
|
|
|
if (!pbEncoded && !pcbEncoded)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Try registered DLL first.. */
|
|
if (!set)
|
|
set = CryptInitOIDFunctionSet(CRYPT_OID_ENCODE_OBJECT_FUNC, 0);
|
|
CryptGetOIDFunctionAddress(set, dwCertEncodingType, lpszStructType, 0,
|
|
(void **)&pCryptEncodeObject, &hFunc);
|
|
if (pCryptEncodeObject)
|
|
{
|
|
ret = pCryptEncodeObject(dwCertEncodingType, lpszStructType,
|
|
pvStructInfo, pbEncoded, pcbEncoded);
|
|
CryptFreeOIDFunctionAddress(hFunc, 0);
|
|
}
|
|
else
|
|
{
|
|
/* If not, use CryptEncodeObjectEx */
|
|
ret = CryptEncodeObjectEx(dwCertEncodingType, lpszStructType,
|
|
pvStructInfo, 0, NULL, pbEncoded, pcbEncoded);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* Helper function to check *pcbEncoded, set it to the required size, and
|
|
* optionally to allocate memory. Assumes pbEncoded is not NULL.
|
|
* If CRYPT_ENCODE_ALLOC_FLAG is set in dwFlags, *pbEncoded will be set to a
|
|
* pointer to the newly allocated memory.
|
|
*/
|
|
static BOOL CRYPT_EncodeEnsureSpace(DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded,
|
|
DWORD bytesNeeded)
|
|
{
|
|
BOOL ret = TRUE;
|
|
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
{
|
|
if (pEncodePara && pEncodePara->pfnAlloc)
|
|
*(BYTE **)pbEncoded = pEncodePara->pfnAlloc(bytesNeeded);
|
|
else
|
|
*(BYTE **)pbEncoded = LocalAlloc(0, bytesNeeded);
|
|
if (!*(BYTE **)pbEncoded)
|
|
ret = FALSE;
|
|
else
|
|
*pcbEncoded = bytesNeeded;
|
|
}
|
|
else if (bytesNeeded > *pcbEncoded)
|
|
{
|
|
*pcbEncoded = bytesNeeded;
|
|
SetLastError(ERROR_MORE_DATA);
|
|
ret = FALSE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CRYPT_EncodeLen(DWORD len, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
DWORD bytesNeeded, significantBytes = 0;
|
|
|
|
if (len <= 0x7f)
|
|
bytesNeeded = 1;
|
|
else
|
|
{
|
|
DWORD temp;
|
|
|
|
for (temp = len, significantBytes = sizeof(temp); !(temp & 0xff000000);
|
|
temp <<= 8, significantBytes--)
|
|
;
|
|
bytesNeeded = significantBytes + 1;
|
|
}
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = bytesNeeded;
|
|
return TRUE;
|
|
}
|
|
if (*pcbEncoded < bytesNeeded)
|
|
{
|
|
SetLastError(ERROR_MORE_DATA);
|
|
return FALSE;
|
|
}
|
|
if (len <= 0x7f)
|
|
*pbEncoded = (BYTE)len;
|
|
else
|
|
{
|
|
DWORD i;
|
|
|
|
*pbEncoded++ = significantBytes | 0x80;
|
|
for (i = 0; i < significantBytes; i++)
|
|
{
|
|
*(pbEncoded + significantBytes - i - 1) = (BYTE)(len & 0xff);
|
|
len >>= 8;
|
|
}
|
|
}
|
|
*pcbEncoded = bytesNeeded;
|
|
return TRUE;
|
|
}
|
|
|
|
struct AsnEncodeSequenceItem
|
|
{
|
|
const void *pvStructInfo;
|
|
CryptEncodeObjectExFunc encodeFunc;
|
|
DWORD size; /* used during encoding, not for your use */
|
|
};
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeSequence(DWORD dwCertEncodingType,
|
|
struct AsnEncodeSequenceItem items[], DWORD cItem, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
DWORD i, dataLen = 0;
|
|
|
|
TRACE("%p, %ld, %08lx, %p, %p, %ld\n", items, cItem, dwFlags, pEncodePara,
|
|
pbEncoded, *pcbEncoded);
|
|
for (i = 0, ret = TRUE; ret && i < cItem; i++)
|
|
{
|
|
ret = items[i].encodeFunc(dwCertEncodingType, NULL,
|
|
items[i].pvStructInfo, dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL,
|
|
NULL, &items[i].size);
|
|
/* Some functions propagate their errors through the size */
|
|
if (!ret)
|
|
*pcbEncoded = items[i].size;
|
|
dataLen += items[i].size;
|
|
}
|
|
if (ret)
|
|
{
|
|
DWORD lenBytes, bytesNeeded;
|
|
|
|
CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
|
|
bytesNeeded = 1 + lenBytes + dataLen;
|
|
if (!pbEncoded)
|
|
*pcbEncoded = bytesNeeded;
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_SEQUENCE;
|
|
CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
for (i = 0; ret && i < cItem; i++)
|
|
{
|
|
ret = items[i].encodeFunc(dwCertEncodingType, NULL,
|
|
items[i].pvStructInfo, dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG,
|
|
NULL, pbEncoded, &items[i].size);
|
|
/* Some functions propagate their errors through the size */
|
|
if (!ret)
|
|
*pcbEncoded = items[i].size;
|
|
pbEncoded += items[i].size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
TRACE("returning %d (%08lx)\n", ret, GetLastError());
|
|
return ret;
|
|
}
|
|
|
|
struct AsnConstructedItem
|
|
{
|
|
BYTE tag;
|
|
const void *pvStructInfo;
|
|
CryptEncodeObjectExFunc encodeFunc;
|
|
};
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeConstructed(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
const struct AsnConstructedItem *item =
|
|
(const struct AsnConstructedItem *)pvStructInfo;
|
|
DWORD len;
|
|
|
|
if ((ret = item->encodeFunc(dwCertEncodingType, lpszStructType,
|
|
item->pvStructInfo, dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, NULL, &len)))
|
|
{
|
|
DWORD dataLen, bytesNeeded;
|
|
|
|
CRYPT_EncodeLen(len, NULL, &dataLen);
|
|
bytesNeeded = 1 + dataLen + len;
|
|
if (!pbEncoded)
|
|
*pcbEncoded = bytesNeeded;
|
|
else if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara,
|
|
pbEncoded, pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_CONTEXT | ASN_CONSTRUCTOR | item->tag;
|
|
CRYPT_EncodeLen(len, pbEncoded, &dataLen);
|
|
pbEncoded += dataLen;
|
|
ret = item->encodeFunc(dwCertEncodingType, lpszStructType,
|
|
item->pvStructInfo, dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL,
|
|
pbEncoded, &len);
|
|
if (!ret)
|
|
{
|
|
/* Some functions propagate their errors through the size */
|
|
*pcbEncoded = len;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Some functions propagate their errors through the size */
|
|
*pcbEncoded = len;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
struct AsnEncodeTagSwappedItem
|
|
{
|
|
BYTE tag;
|
|
const void *pvStructInfo;
|
|
CryptEncodeObjectExFunc encodeFunc;
|
|
};
|
|
|
|
/* Sort of a wacky hack, it encodes something using the struct
|
|
* AsnEncodeTagSwappedItem's encodeFunc, then replaces the tag byte with the tag
|
|
* given in the struct AsnEncodeTagSwappedItem.
|
|
*/
|
|
static BOOL WINAPI CRYPT_AsnEncodeSwapTag(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
const struct AsnEncodeTagSwappedItem *item =
|
|
(const struct AsnEncodeTagSwappedItem *)pvStructInfo;
|
|
|
|
ret = item->encodeFunc(dwCertEncodingType, lpszStructType,
|
|
item->pvStructInfo, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
|
|
if (ret && pbEncoded)
|
|
*pbEncoded = item->tag;
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeCertVersion(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
const DWORD *ver = (const DWORD *)pvStructInfo;
|
|
BOOL ret;
|
|
|
|
/* CERT_V1 is not encoded */
|
|
if (*ver == CERT_V1)
|
|
{
|
|
*pcbEncoded = 0;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
{
|
|
struct AsnConstructedItem item = { 0, ver, CRYPT_AsnEncodeInt };
|
|
|
|
ret = CRYPT_AsnEncodeConstructed(dwCertEncodingType, X509_INTEGER,
|
|
&item, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_CopyEncodedBlob(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
const CRYPT_DER_BLOB *blob = (const CRYPT_DER_BLOB *)pvStructInfo;
|
|
BOOL ret;
|
|
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = blob->cbData;
|
|
ret = TRUE;
|
|
}
|
|
else if (*pcbEncoded < blob->cbData)
|
|
{
|
|
*pcbEncoded = blob->cbData;
|
|
SetLastError(ERROR_MORE_DATA);
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
if (blob->cbData)
|
|
memcpy(pbEncoded, blob->pbData, blob->cbData);
|
|
*pcbEncoded = blob->cbData;
|
|
ret = TRUE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeValidity(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
/* This has two filetimes in a row, a NotBefore and a NotAfter */
|
|
const FILETIME *timePtr = (const FILETIME *)pvStructInfo;
|
|
struct AsnEncodeSequenceItem items[] = {
|
|
{ timePtr++, CRYPT_AsnEncodeChoiceOfTime, 0 },
|
|
{ timePtr, CRYPT_AsnEncodeChoiceOfTime, 0 },
|
|
};
|
|
|
|
ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items,
|
|
sizeof(items) / sizeof(items[0]), dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded);
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeAlgorithmId(
|
|
DWORD dwCertEncodingType, LPCSTR lpszStructType, const void *pvStructInfo,
|
|
DWORD dwFlags, PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded,
|
|
DWORD *pcbEncoded)
|
|
{
|
|
const CRYPT_ALGORITHM_IDENTIFIER *algo =
|
|
(const CRYPT_ALGORITHM_IDENTIFIER *)pvStructInfo;
|
|
BOOL ret;
|
|
struct AsnEncodeSequenceItem items[] = {
|
|
{ algo->pszObjId, CRYPT_AsnEncodeOid, 0 },
|
|
{ &algo->Parameters, CRYPT_CopyEncodedBlob, 0 },
|
|
};
|
|
|
|
ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items,
|
|
sizeof(items) / sizeof(items[0]), dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded);
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodePubKeyInfo(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CERT_PUBLIC_KEY_INFO *info =
|
|
(const CERT_PUBLIC_KEY_INFO *)pvStructInfo;
|
|
struct AsnEncodeSequenceItem items[] = {
|
|
{ &info->Algorithm, CRYPT_AsnEncodeAlgorithmId, 0 },
|
|
{ &info->PublicKey, CRYPT_AsnEncodeBits, 0 },
|
|
};
|
|
|
|
TRACE("Encoding public key with OID %s\n",
|
|
debugstr_a(info->Algorithm.pszObjId));
|
|
ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items,
|
|
sizeof(items) / sizeof(items[0]), dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded);
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeCert(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CERT_SIGNED_CONTENT_INFO *info =
|
|
(const CERT_SIGNED_CONTENT_INFO *)pvStructInfo;
|
|
struct AsnEncodeSequenceItem items[] = {
|
|
{ &info->ToBeSigned, CRYPT_CopyEncodedBlob, 0 },
|
|
{ &info->SignatureAlgorithm, CRYPT_AsnEncodeAlgorithmId, 0 },
|
|
{ &info->Signature, CRYPT_AsnEncodeBitsSwapBytes, 0 },
|
|
};
|
|
|
|
if (dwFlags & CRYPT_ENCODE_NO_SIGNATURE_BYTE_REVERSAL_FLAG)
|
|
items[2].encodeFunc = CRYPT_AsnEncodeBits;
|
|
ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items,
|
|
sizeof(items) / sizeof(items[0]), dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded);
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
/* Like in Windows, this blithely ignores the validity of the passed-in
|
|
* CERT_INFO, and just encodes it as-is. The resulting encoded data may not
|
|
* decode properly, see CRYPT_AsnDecodeCertInfo.
|
|
*/
|
|
static BOOL WINAPI CRYPT_AsnEncodeCertInfo(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CERT_INFO *info = (const CERT_INFO *)pvStructInfo;
|
|
struct AsnEncodeSequenceItem items[10] = {
|
|
{ &info->dwVersion, CRYPT_AsnEncodeCertVersion, 0 },
|
|
{ &info->SerialNumber, CRYPT_AsnEncodeInteger, 0 },
|
|
{ &info->SignatureAlgorithm, CRYPT_AsnEncodeAlgorithmId, 0 },
|
|
{ &info->Issuer, CRYPT_CopyEncodedBlob, 0 },
|
|
{ &info->NotBefore, CRYPT_AsnEncodeValidity, 0 },
|
|
{ &info->Subject, CRYPT_CopyEncodedBlob, 0 },
|
|
{ &info->SubjectPublicKeyInfo, CRYPT_AsnEncodePubKeyInfo, 0 },
|
|
{ 0 }
|
|
};
|
|
struct AsnConstructedItem constructed[3] = { { 0 } };
|
|
DWORD cItem = 7, cConstructed = 0;
|
|
|
|
if (info->IssuerUniqueId.cbData)
|
|
{
|
|
constructed[cConstructed].tag = 1;
|
|
constructed[cConstructed].pvStructInfo = &info->IssuerUniqueId;
|
|
constructed[cConstructed].encodeFunc = CRYPT_AsnEncodeBits;
|
|
items[cItem].pvStructInfo = &constructed[cConstructed];
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeConstructed;
|
|
cConstructed++;
|
|
cItem++;
|
|
}
|
|
if (info->SubjectUniqueId.cbData)
|
|
{
|
|
constructed[cConstructed].tag = 2;
|
|
constructed[cConstructed].pvStructInfo = &info->SubjectUniqueId;
|
|
constructed[cConstructed].encodeFunc = CRYPT_AsnEncodeBits;
|
|
items[cItem].pvStructInfo = &constructed[cConstructed];
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeConstructed;
|
|
cConstructed++;
|
|
cItem++;
|
|
}
|
|
if (info->cExtension)
|
|
{
|
|
constructed[cConstructed].tag = 3;
|
|
constructed[cConstructed].pvStructInfo = &info->cExtension;
|
|
constructed[cConstructed].encodeFunc = CRYPT_AsnEncodeExtensions;
|
|
items[cItem].pvStructInfo = &constructed[cConstructed];
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeConstructed;
|
|
cConstructed++;
|
|
cItem++;
|
|
}
|
|
|
|
ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items, cItem,
|
|
dwFlags, pEncodePara, pbEncoded, pcbEncoded);
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeCRLEntry(const CRL_ENTRY *entry,
|
|
BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
struct AsnEncodeSequenceItem items[3] = {
|
|
{ &entry->SerialNumber, CRYPT_AsnEncodeInteger, 0 },
|
|
{ &entry->RevocationDate, CRYPT_AsnEncodeChoiceOfTime, 0 },
|
|
{ 0 }
|
|
};
|
|
DWORD cItem = 2;
|
|
BOOL ret;
|
|
|
|
TRACE("%p, %p, %p\n", entry, pbEncoded, pcbEncoded);
|
|
|
|
if (entry->cExtension)
|
|
{
|
|
items[cItem].pvStructInfo = &entry->cExtension;
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeExtensions;
|
|
cItem++;
|
|
}
|
|
|
|
ret = CRYPT_AsnEncodeSequence(X509_ASN_ENCODING, items, cItem, 0, NULL,
|
|
pbEncoded, pcbEncoded);
|
|
|
|
TRACE("returning %d (%08lx)\n", ret, GetLastError());
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeCRLEntries(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
DWORD cCRLEntry = *(const DWORD *)pvStructInfo;
|
|
DWORD bytesNeeded, dataLen, lenBytes, i;
|
|
const CRL_ENTRY *rgCRLEntry = *(const CRL_ENTRY **)
|
|
((const BYTE *)pvStructInfo + sizeof(DWORD));
|
|
BOOL ret = TRUE;
|
|
|
|
for (i = 0, dataLen = 0; ret && i < cCRLEntry; i++)
|
|
{
|
|
DWORD size;
|
|
|
|
ret = CRYPT_AsnEncodeCRLEntry(&rgCRLEntry[i], NULL, &size);
|
|
if (ret)
|
|
dataLen += size;
|
|
}
|
|
CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
|
|
bytesNeeded = 1 + lenBytes + dataLen;
|
|
if (!pbEncoded)
|
|
*pcbEncoded = bytesNeeded;
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_SEQUENCEOF;
|
|
CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
for (i = 0; i < cCRLEntry; i++)
|
|
{
|
|
DWORD size = dataLen;
|
|
|
|
ret = CRYPT_AsnEncodeCRLEntry(&rgCRLEntry[i], pbEncoded, &size);
|
|
pbEncoded += size;
|
|
dataLen -= size;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeCRLVersion(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
const DWORD *ver = (const DWORD *)pvStructInfo;
|
|
BOOL ret;
|
|
|
|
/* CRL_V1 is not encoded */
|
|
if (*ver == CRL_V1)
|
|
{
|
|
*pcbEncoded = 0;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
ret = CRYPT_AsnEncodeInt(dwCertEncodingType, X509_INTEGER, ver,
|
|
dwFlags, pEncodePara, pbEncoded, pcbEncoded);
|
|
return ret;
|
|
}
|
|
|
|
/* Like in Windows, this blithely ignores the validity of the passed-in
|
|
* CRL_INFO, and just encodes it as-is. The resulting encoded data may not
|
|
* decode properly, see CRYPT_AsnDecodeCRLInfo.
|
|
*/
|
|
static BOOL WINAPI CRYPT_AsnEncodeCRLInfo(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CRL_INFO *info = (const CRL_INFO *)pvStructInfo;
|
|
struct AsnEncodeSequenceItem items[7] = {
|
|
{ &info->dwVersion, CRYPT_AsnEncodeCRLVersion, 0 },
|
|
{ &info->SignatureAlgorithm, CRYPT_AsnEncodeAlgorithmId, 0 },
|
|
{ &info->Issuer, CRYPT_CopyEncodedBlob, 0 },
|
|
{ &info->ThisUpdate, CRYPT_AsnEncodeChoiceOfTime, 0 },
|
|
{ 0 }
|
|
};
|
|
DWORD cItem = 4;
|
|
|
|
if (info->NextUpdate.dwLowDateTime || info->NextUpdate.dwHighDateTime)
|
|
{
|
|
items[cItem].pvStructInfo = &info->NextUpdate;
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeChoiceOfTime;
|
|
cItem++;
|
|
}
|
|
if (info->cCRLEntry)
|
|
{
|
|
items[cItem].pvStructInfo = &info->cCRLEntry;
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeCRLEntries;
|
|
cItem++;
|
|
}
|
|
if (info->cExtension)
|
|
{
|
|
items[cItem].pvStructInfo = &info->cExtension;
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeExtensions;
|
|
cItem++;
|
|
}
|
|
|
|
ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items, cItem,
|
|
dwFlags, pEncodePara, pbEncoded, pcbEncoded);
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CRYPT_AsnEncodeExtension(CERT_EXTENSION *ext, BYTE *pbEncoded,
|
|
DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
struct AsnEncodeSequenceItem items[3] = {
|
|
{ ext->pszObjId, CRYPT_AsnEncodeOid, 0 },
|
|
{ NULL, NULL, 0 },
|
|
{ NULL, NULL, 0 },
|
|
};
|
|
DWORD cItem = 1;
|
|
|
|
TRACE("%p, %p, %ld\n", ext, pbEncoded, *pcbEncoded);
|
|
|
|
if (ext->fCritical)
|
|
{
|
|
items[cItem].pvStructInfo = &ext->fCritical;
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeBool;
|
|
cItem++;
|
|
}
|
|
items[cItem].pvStructInfo = &ext->Value;
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeOctets;
|
|
cItem++;
|
|
|
|
ret = CRYPT_AsnEncodeSequence(X509_ASN_ENCODING, items, cItem, 0, NULL,
|
|
pbEncoded, pcbEncoded);
|
|
TRACE("returning %d (%08lx)\n", ret, GetLastError());
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeExtensions(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
DWORD bytesNeeded, dataLen, lenBytes, i;
|
|
const CERT_EXTENSIONS *exts = (const CERT_EXTENSIONS *)pvStructInfo;
|
|
|
|
ret = TRUE;
|
|
for (i = 0, dataLen = 0; ret && i < exts->cExtension; i++)
|
|
{
|
|
DWORD size;
|
|
|
|
ret = CRYPT_AsnEncodeExtension(&exts->rgExtension[i], NULL, &size);
|
|
if (ret)
|
|
dataLen += size;
|
|
}
|
|
CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
|
|
bytesNeeded = 1 + lenBytes + dataLen;
|
|
if (!pbEncoded)
|
|
*pcbEncoded = bytesNeeded;
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_SEQUENCEOF;
|
|
CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
for (i = 0; i < exts->cExtension; i++)
|
|
{
|
|
DWORD size = dataLen;
|
|
|
|
ret = CRYPT_AsnEncodeExtension(&exts->rgExtension[i],
|
|
pbEncoded, &size);
|
|
pbEncoded += size;
|
|
dataLen -= size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeOid(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
LPCSTR pszObjId = (LPCSTR)pvStructInfo;
|
|
DWORD bytesNeeded = 0, lenBytes;
|
|
BOOL ret = TRUE;
|
|
int firstPos = 0;
|
|
BYTE firstByte = 0;
|
|
|
|
TRACE("%s\n", debugstr_a(pszObjId));
|
|
|
|
if (pszObjId)
|
|
{
|
|
const char *ptr;
|
|
int val1, val2;
|
|
|
|
if (sscanf(pszObjId, "%d.%d.%n", &val1, &val2, &firstPos) != 2)
|
|
{
|
|
SetLastError(CRYPT_E_ASN1_ERROR);
|
|
return FALSE;
|
|
}
|
|
bytesNeeded++;
|
|
firstByte = val1 * 40 + val2;
|
|
ptr = pszObjId + firstPos;
|
|
while (ret && *ptr)
|
|
{
|
|
int pos;
|
|
|
|
/* note I assume each component is at most 32-bits long in base 2 */
|
|
if (sscanf(ptr, "%d%n", &val1, &pos) == 1)
|
|
{
|
|
if (val1 >= 0x10000000)
|
|
bytesNeeded += 5;
|
|
else if (val1 >= 0x200000)
|
|
bytesNeeded += 4;
|
|
else if (val1 >= 0x4000)
|
|
bytesNeeded += 3;
|
|
else if (val1 >= 0x80)
|
|
bytesNeeded += 2;
|
|
else
|
|
bytesNeeded += 1;
|
|
ptr += pos;
|
|
if (*ptr == '.')
|
|
ptr++;
|
|
}
|
|
else
|
|
{
|
|
SetLastError(CRYPT_E_ASN1_ERROR);
|
|
return FALSE;
|
|
}
|
|
}
|
|
CRYPT_EncodeLen(bytesNeeded, NULL, &lenBytes);
|
|
}
|
|
else
|
|
lenBytes = 1;
|
|
bytesNeeded += 1 + lenBytes;
|
|
if (pbEncoded)
|
|
{
|
|
if (*pcbEncoded < bytesNeeded)
|
|
{
|
|
SetLastError(ERROR_MORE_DATA);
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
*pbEncoded++ = ASN_OBJECTIDENTIFIER;
|
|
CRYPT_EncodeLen(bytesNeeded - 1 - lenBytes, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
if (pszObjId)
|
|
{
|
|
const char *ptr;
|
|
int val, pos;
|
|
|
|
*pbEncoded++ = firstByte;
|
|
ptr = pszObjId + firstPos;
|
|
while (ret && *ptr)
|
|
{
|
|
sscanf(ptr, "%d%n", &val, &pos);
|
|
{
|
|
unsigned char outBytes[5];
|
|
int numBytes, i;
|
|
|
|
if (val >= 0x10000000)
|
|
numBytes = 5;
|
|
else if (val >= 0x200000)
|
|
numBytes = 4;
|
|
else if (val >= 0x4000)
|
|
numBytes = 3;
|
|
else if (val >= 0x80)
|
|
numBytes = 2;
|
|
else
|
|
numBytes = 1;
|
|
for (i = numBytes; i > 0; i--)
|
|
{
|
|
outBytes[i - 1] = val & 0x7f;
|
|
val >>= 7;
|
|
}
|
|
for (i = 0; i < numBytes - 1; i++)
|
|
*pbEncoded++ = outBytes[i] | 0x80;
|
|
*pbEncoded++ = outBytes[i];
|
|
ptr += pos;
|
|
if (*ptr == '.')
|
|
ptr++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
*pcbEncoded = bytesNeeded;
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeNameValue(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret = TRUE;
|
|
|
|
__TRY
|
|
{
|
|
BYTE tag;
|
|
DWORD bytesNeeded, lenBytes, encodedLen;
|
|
const CERT_NAME_VALUE *value = (CERT_NAME_VALUE *)pvStructInfo;
|
|
|
|
switch (value->dwValueType)
|
|
{
|
|
case CERT_RDN_NUMERIC_STRING:
|
|
tag = ASN_NUMERICSTRING;
|
|
encodedLen = value->Value.cbData;
|
|
break;
|
|
case CERT_RDN_PRINTABLE_STRING:
|
|
tag = ASN_PRINTABLESTRING;
|
|
encodedLen = value->Value.cbData;
|
|
break;
|
|
case CERT_RDN_T61_STRING:
|
|
tag = ASN_T61STRING;
|
|
encodedLen = value->Value.cbData;
|
|
break;
|
|
case CERT_RDN_IA5_STRING:
|
|
tag = ASN_IA5STRING;
|
|
encodedLen = value->Value.cbData;
|
|
break;
|
|
case CERT_RDN_ANY_TYPE:
|
|
/* explicitly disallowed */
|
|
SetLastError(E_INVALIDARG);
|
|
return FALSE;
|
|
default:
|
|
FIXME("String type %ld unimplemented\n", value->dwValueType);
|
|
return FALSE;
|
|
}
|
|
CRYPT_EncodeLen(encodedLen, NULL, &lenBytes);
|
|
bytesNeeded = 1 + lenBytes + encodedLen;
|
|
if (!pbEncoded)
|
|
*pcbEncoded = bytesNeeded;
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = tag;
|
|
CRYPT_EncodeLen(encodedLen, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
switch (value->dwValueType)
|
|
{
|
|
case CERT_RDN_NUMERIC_STRING:
|
|
case CERT_RDN_PRINTABLE_STRING:
|
|
case CERT_RDN_T61_STRING:
|
|
case CERT_RDN_IA5_STRING:
|
|
memcpy(pbEncoded, value->Value.pbData, value->Value.cbData);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeRdnAttr(DWORD dwCertEncodingType,
|
|
CERT_RDN_ATTR *attr, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
DWORD bytesNeeded = 0, lenBytes, size;
|
|
BOOL ret;
|
|
|
|
ret = CRYPT_AsnEncodeOid(dwCertEncodingType, NULL, attr->pszObjId,
|
|
0, NULL, NULL, &size);
|
|
if (ret)
|
|
{
|
|
bytesNeeded += size;
|
|
/* hack: a CERT_RDN_ATTR is identical to a CERT_NAME_VALUE beginning
|
|
* with dwValueType, so "cast" it to get its encoded size
|
|
*/
|
|
ret = CRYPT_AsnEncodeNameValue(dwCertEncodingType, X509_NAME_VALUE,
|
|
(CERT_NAME_VALUE *)&attr->dwValueType, 0, NULL, NULL, &size);
|
|
if (ret)
|
|
{
|
|
bytesNeeded += size;
|
|
CRYPT_EncodeLen(bytesNeeded, NULL, &lenBytes);
|
|
bytesNeeded += 1 + lenBytes;
|
|
if (pbEncoded)
|
|
{
|
|
if (*pcbEncoded < bytesNeeded)
|
|
{
|
|
SetLastError(ERROR_MORE_DATA);
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
*pbEncoded++ = ASN_SEQUENCE;
|
|
CRYPT_EncodeLen(bytesNeeded - lenBytes - 1, pbEncoded,
|
|
&lenBytes);
|
|
pbEncoded += lenBytes;
|
|
size = bytesNeeded - 1 - lenBytes;
|
|
ret = CRYPT_AsnEncodeOid(dwCertEncodingType, NULL,
|
|
attr->pszObjId, 0, NULL, pbEncoded, &size);
|
|
if (ret)
|
|
{
|
|
pbEncoded += size;
|
|
size = bytesNeeded - 1 - lenBytes - size;
|
|
ret = CRYPT_AsnEncodeNameValue(dwCertEncodingType,
|
|
X509_NAME_VALUE, (CERT_NAME_VALUE *)&attr->dwValueType,
|
|
0, NULL, pbEncoded, &size);
|
|
}
|
|
}
|
|
}
|
|
*pcbEncoded = bytesNeeded;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int BLOBComp(const void *l, const void *r)
|
|
{
|
|
CRYPT_DER_BLOB *a = (CRYPT_DER_BLOB *)l, *b = (CRYPT_DER_BLOB *)r;
|
|
int ret;
|
|
|
|
if (!(ret = memcmp(a->pbData, b->pbData, min(a->cbData, b->cbData))))
|
|
ret = a->cbData - b->cbData;
|
|
return ret;
|
|
}
|
|
|
|
/* This encodes as a SET OF, which in DER must be lexicographically sorted.
|
|
*/
|
|
static BOOL WINAPI CRYPT_AsnEncodeRdn(DWORD dwCertEncodingType, CERT_RDN *rdn,
|
|
BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
CRYPT_DER_BLOB *blobs = NULL;
|
|
|
|
__TRY
|
|
{
|
|
DWORD bytesNeeded = 0, lenBytes, i;
|
|
|
|
blobs = NULL;
|
|
ret = TRUE;
|
|
if (rdn->cRDNAttr)
|
|
{
|
|
blobs = CryptMemAlloc(rdn->cRDNAttr * sizeof(CRYPT_DER_BLOB));
|
|
if (!blobs)
|
|
ret = FALSE;
|
|
else
|
|
memset(blobs, 0, rdn->cRDNAttr * sizeof(CRYPT_DER_BLOB));
|
|
}
|
|
for (i = 0; ret && i < rdn->cRDNAttr; i++)
|
|
{
|
|
ret = CRYPT_AsnEncodeRdnAttr(dwCertEncodingType, &rdn->rgRDNAttr[i],
|
|
NULL, &blobs[i].cbData);
|
|
if (ret)
|
|
bytesNeeded += blobs[i].cbData;
|
|
}
|
|
if (ret)
|
|
{
|
|
CRYPT_EncodeLen(bytesNeeded, NULL, &lenBytes);
|
|
bytesNeeded += 1 + lenBytes;
|
|
if (pbEncoded)
|
|
{
|
|
if (*pcbEncoded < bytesNeeded)
|
|
{
|
|
SetLastError(ERROR_MORE_DATA);
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; ret && i < rdn->cRDNAttr; i++)
|
|
{
|
|
blobs[i].pbData = CryptMemAlloc(blobs[i].cbData);
|
|
if (!blobs[i].pbData)
|
|
ret = FALSE;
|
|
else
|
|
ret = CRYPT_AsnEncodeRdnAttr(dwCertEncodingType,
|
|
&rdn->rgRDNAttr[i], blobs[i].pbData,
|
|
&blobs[i].cbData);
|
|
}
|
|
if (ret)
|
|
{
|
|
qsort(blobs, rdn->cRDNAttr, sizeof(CRYPT_DER_BLOB),
|
|
BLOBComp);
|
|
*pbEncoded++ = ASN_CONSTRUCTOR | ASN_SETOF;
|
|
CRYPT_EncodeLen(bytesNeeded - lenBytes - 1, pbEncoded,
|
|
&lenBytes);
|
|
pbEncoded += lenBytes;
|
|
for (i = 0; ret && i < rdn->cRDNAttr; i++)
|
|
{
|
|
memcpy(pbEncoded, blobs[i].pbData, blobs[i].cbData);
|
|
pbEncoded += blobs[i].cbData;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
*pcbEncoded = bytesNeeded;
|
|
}
|
|
if (blobs)
|
|
{
|
|
for (i = 0; i < rdn->cRDNAttr; i++)
|
|
CryptMemFree(blobs[i].pbData);
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
CryptMemFree(blobs);
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeName(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CERT_NAME_INFO *info = (const CERT_NAME_INFO *)pvStructInfo;
|
|
DWORD bytesNeeded = 0, lenBytes, size, i;
|
|
|
|
TRACE("encoding name with %ld RDNs\n", info->cRDN);
|
|
ret = TRUE;
|
|
for (i = 0; ret && i < info->cRDN; i++)
|
|
{
|
|
ret = CRYPT_AsnEncodeRdn(dwCertEncodingType, &info->rgRDN[i], NULL,
|
|
&size);
|
|
if (ret)
|
|
bytesNeeded += size;
|
|
}
|
|
CRYPT_EncodeLen(bytesNeeded, NULL, &lenBytes);
|
|
bytesNeeded += 1 + lenBytes;
|
|
if (ret)
|
|
{
|
|
if (!pbEncoded)
|
|
*pcbEncoded = bytesNeeded;
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara,
|
|
pbEncoded, pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_SEQUENCEOF;
|
|
CRYPT_EncodeLen(bytesNeeded - lenBytes - 1, pbEncoded,
|
|
&lenBytes);
|
|
pbEncoded += lenBytes;
|
|
for (i = 0; ret && i < info->cRDN; i++)
|
|
{
|
|
size = bytesNeeded;
|
|
ret = CRYPT_AsnEncodeRdn(dwCertEncodingType,
|
|
&info->rgRDN[i], pbEncoded, &size);
|
|
if (ret)
|
|
{
|
|
pbEncoded += size;
|
|
bytesNeeded -= size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeBool(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL val = *(const BOOL *)pvStructInfo, ret;
|
|
|
|
TRACE("%d\n", val);
|
|
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = 3;
|
|
ret = TRUE;
|
|
}
|
|
else if (*pcbEncoded < 3)
|
|
{
|
|
*pcbEncoded = 3;
|
|
SetLastError(ERROR_MORE_DATA);
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
*pcbEncoded = 3;
|
|
*pbEncoded++ = ASN_BOOL;
|
|
*pbEncoded++ = 1;
|
|
*pbEncoded++ = val ? 0xff : 0;
|
|
ret = TRUE;
|
|
}
|
|
TRACE("returning %d (%08lx)\n", ret, GetLastError());
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CRYPT_AsnEncodeAltNameEntry(const CERT_ALT_NAME_ENTRY *entry,
|
|
BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
DWORD dataLen;
|
|
|
|
ret = TRUE;
|
|
switch (entry->dwAltNameChoice)
|
|
{
|
|
case CERT_ALT_NAME_RFC822_NAME:
|
|
case CERT_ALT_NAME_DNS_NAME:
|
|
case CERT_ALT_NAME_URL:
|
|
if (entry->u.pwszURL)
|
|
{
|
|
DWORD i;
|
|
|
|
/* Not + 1: don't encode the NULL-terminator */
|
|
dataLen = lstrlenW(entry->u.pwszURL);
|
|
for (i = 0; ret && i < dataLen; i++)
|
|
{
|
|
if (entry->u.pwszURL[i] > 0x7f)
|
|
{
|
|
SetLastError(CRYPT_E_INVALID_IA5_STRING);
|
|
ret = FALSE;
|
|
*pcbEncoded = i;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
dataLen = 0;
|
|
break;
|
|
case CERT_ALT_NAME_IP_ADDRESS:
|
|
dataLen = entry->u.IPAddress.cbData;
|
|
break;
|
|
case CERT_ALT_NAME_REGISTERED_ID:
|
|
/* FIXME: encode OID */
|
|
case CERT_ALT_NAME_OTHER_NAME:
|
|
case CERT_ALT_NAME_DIRECTORY_NAME:
|
|
FIXME("name type %ld unimplemented\n", entry->dwAltNameChoice);
|
|
return FALSE;
|
|
default:
|
|
SetLastError(E_INVALIDARG);
|
|
return FALSE;
|
|
}
|
|
if (ret)
|
|
{
|
|
DWORD bytesNeeded, lenBytes;
|
|
|
|
CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
|
|
bytesNeeded = 1 + dataLen + lenBytes;
|
|
if (!pbEncoded)
|
|
*pcbEncoded = bytesNeeded;
|
|
else if (*pcbEncoded < bytesNeeded)
|
|
{
|
|
SetLastError(ERROR_MORE_DATA);
|
|
*pcbEncoded = bytesNeeded;
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
*pbEncoded++ = ASN_CONTEXT | (entry->dwAltNameChoice - 1);
|
|
CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
switch (entry->dwAltNameChoice)
|
|
{
|
|
case CERT_ALT_NAME_RFC822_NAME:
|
|
case CERT_ALT_NAME_DNS_NAME:
|
|
case CERT_ALT_NAME_URL:
|
|
{
|
|
DWORD i;
|
|
|
|
for (i = 0; i < dataLen; i++)
|
|
*pbEncoded++ = (BYTE)entry->u.pwszURL[i];
|
|
break;
|
|
}
|
|
case CERT_ALT_NAME_IP_ADDRESS:
|
|
memcpy(pbEncoded, entry->u.IPAddress.pbData, dataLen);
|
|
break;
|
|
}
|
|
if (ret)
|
|
*pcbEncoded = bytesNeeded;
|
|
}
|
|
}
|
|
TRACE("returning %d (%08lx)\n", ret, GetLastError());
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeAltName(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CERT_ALT_NAME_INFO *info =
|
|
(const CERT_ALT_NAME_INFO *)pvStructInfo;
|
|
DWORD bytesNeeded, dataLen, lenBytes, i;
|
|
|
|
ret = TRUE;
|
|
/* FIXME: should check that cAltEntry is not bigger than 0xff, since we
|
|
* can't encode an erroneous entry index if it's bigger than this.
|
|
*/
|
|
for (i = 0, dataLen = 0; ret && i < info->cAltEntry; i++)
|
|
{
|
|
DWORD len;
|
|
|
|
ret = CRYPT_AsnEncodeAltNameEntry(&info->rgAltEntry[i], NULL,
|
|
&len);
|
|
if (ret)
|
|
dataLen += len;
|
|
else if (GetLastError() == CRYPT_E_INVALID_IA5_STRING)
|
|
{
|
|
/* CRYPT_AsnEncodeAltNameEntry encoded the index of
|
|
* the bad character, now set the index of the bad
|
|
* entry
|
|
*/
|
|
*pcbEncoded = (BYTE)i <<
|
|
CERT_ALT_NAME_ENTRY_ERR_INDEX_SHIFT | len;
|
|
}
|
|
}
|
|
if (ret)
|
|
{
|
|
CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
|
|
bytesNeeded = 1 + lenBytes + dataLen;
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = bytesNeeded;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara,
|
|
pbEncoded, pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_SEQUENCEOF;
|
|
CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
for (i = 0; ret && i < info->cAltEntry; i++)
|
|
{
|
|
DWORD len = dataLen;
|
|
|
|
ret = CRYPT_AsnEncodeAltNameEntry(&info->rgAltEntry[i],
|
|
pbEncoded, &len);
|
|
if (ret)
|
|
{
|
|
pbEncoded += len;
|
|
dataLen -= len;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeBasicConstraints(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CERT_BASIC_CONSTRAINTS_INFO *info =
|
|
(const CERT_BASIC_CONSTRAINTS_INFO *)pvStructInfo;
|
|
struct AsnEncodeSequenceItem items[3] = {
|
|
{ &info->SubjectType, CRYPT_AsnEncodeBits, 0 },
|
|
{ 0 }
|
|
};
|
|
DWORD cItem = 1;
|
|
|
|
if (info->fPathLenConstraint)
|
|
{
|
|
items[cItem].pvStructInfo = &info->dwPathLenConstraint;
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeInt;
|
|
cItem++;
|
|
}
|
|
if (info->cSubtreesConstraint)
|
|
{
|
|
items[cItem].pvStructInfo = &info->cSubtreesConstraint;
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeSequenceOfAny;
|
|
cItem++;
|
|
}
|
|
ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items, cItem,
|
|
dwFlags, pEncodePara, pbEncoded, pcbEncoded);
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeBasicConstraints2(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CERT_BASIC_CONSTRAINTS2_INFO *info =
|
|
(const CERT_BASIC_CONSTRAINTS2_INFO *)pvStructInfo;
|
|
struct AsnEncodeSequenceItem items[2] = { { 0 } };
|
|
DWORD cItem = 0;
|
|
|
|
if (info->fCA)
|
|
{
|
|
items[cItem].pvStructInfo = &info->fCA;
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeBool;
|
|
cItem++;
|
|
}
|
|
if (info->fPathLenConstraint)
|
|
{
|
|
items[cItem].pvStructInfo = &info->dwPathLenConstraint;
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeInt;
|
|
cItem++;
|
|
}
|
|
ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items, cItem,
|
|
dwFlags, pEncodePara, pbEncoded, pcbEncoded);
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeRsaPubKey(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const BLOBHEADER *hdr =
|
|
(const BLOBHEADER *)pvStructInfo;
|
|
|
|
if (hdr->bType != PUBLICKEYBLOB)
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
const RSAPUBKEY *rsaPubKey = (const RSAPUBKEY *)
|
|
((const BYTE *)pvStructInfo + sizeof(BLOBHEADER));
|
|
CRYPT_INTEGER_BLOB blob = { rsaPubKey->bitlen / 8,
|
|
(BYTE *)pvStructInfo + sizeof(BLOBHEADER) + sizeof(RSAPUBKEY) };
|
|
struct AsnEncodeSequenceItem items[] = {
|
|
{ &blob, CRYPT_AsnEncodeUnsignedInteger, 0 },
|
|
{ &rsaPubKey->pubexp, CRYPT_AsnEncodeInt, 0 },
|
|
};
|
|
|
|
ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items,
|
|
sizeof(items) / sizeof(items[0]), dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded);
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeOctets(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CRYPT_DATA_BLOB *blob = (const CRYPT_DATA_BLOB *)pvStructInfo;
|
|
DWORD bytesNeeded, lenBytes;
|
|
|
|
TRACE("(%ld, %p), %08lx, %p, %p, %ld\n", blob->cbData, blob->pbData,
|
|
dwFlags, pEncodePara, pbEncoded, *pcbEncoded);
|
|
|
|
CRYPT_EncodeLen(blob->cbData, NULL, &lenBytes);
|
|
bytesNeeded = 1 + lenBytes + blob->cbData;
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = bytesNeeded;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_OCTETSTRING;
|
|
CRYPT_EncodeLen(blob->cbData, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
if (blob->cbData)
|
|
memcpy(pbEncoded, blob->pbData, blob->cbData);
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
TRACE("returning %d (%08lx)\n", ret, GetLastError());
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeBits(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CRYPT_BIT_BLOB *blob = (const CRYPT_BIT_BLOB *)pvStructInfo;
|
|
DWORD bytesNeeded, lenBytes, dataBytes;
|
|
BYTE unusedBits;
|
|
|
|
/* yep, MS allows cUnusedBits to be >= 8 */
|
|
if (!blob->cUnusedBits)
|
|
{
|
|
dataBytes = blob->cbData;
|
|
unusedBits = 0;
|
|
}
|
|
else if (blob->cbData * 8 > blob->cUnusedBits)
|
|
{
|
|
dataBytes = (blob->cbData * 8 - blob->cUnusedBits) / 8 + 1;
|
|
unusedBits = blob->cUnusedBits >= 8 ? blob->cUnusedBits / 8 :
|
|
blob->cUnusedBits;
|
|
}
|
|
else
|
|
{
|
|
dataBytes = 0;
|
|
unusedBits = 0;
|
|
}
|
|
CRYPT_EncodeLen(dataBytes + 1, NULL, &lenBytes);
|
|
bytesNeeded = 1 + lenBytes + dataBytes + 1;
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = bytesNeeded;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_BITSTRING;
|
|
CRYPT_EncodeLen(dataBytes + 1, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
*pbEncoded++ = unusedBits;
|
|
if (dataBytes)
|
|
{
|
|
BYTE mask = 0xff << unusedBits;
|
|
|
|
if (dataBytes > 1)
|
|
{
|
|
memcpy(pbEncoded, blob->pbData, dataBytes - 1);
|
|
pbEncoded += dataBytes - 1;
|
|
}
|
|
*pbEncoded = *(blob->pbData + dataBytes - 1) & mask;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeBitsSwapBytes(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CRYPT_BIT_BLOB *blob = (const CRYPT_BIT_BLOB *)pvStructInfo;
|
|
CRYPT_BIT_BLOB newBlob = { blob->cbData, NULL, blob->cUnusedBits };
|
|
|
|
ret = TRUE;
|
|
if (newBlob.cbData)
|
|
{
|
|
newBlob.pbData = CryptMemAlloc(newBlob.cbData);
|
|
if (newBlob.pbData)
|
|
{
|
|
DWORD i;
|
|
|
|
for (i = 0; i < newBlob.cbData; i++)
|
|
newBlob.pbData[newBlob.cbData - i - 1] = blob->pbData[i];
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
if (ret)
|
|
ret = CRYPT_AsnEncodeBits(dwCertEncodingType, lpszStructType,
|
|
&newBlob, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
|
|
CryptMemFree(newBlob.pbData);
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeInt(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
CRYPT_INTEGER_BLOB blob = { sizeof(INT), (BYTE *)pvStructInfo };
|
|
|
|
return CRYPT_AsnEncodeInteger(dwCertEncodingType, X509_MULTI_BYTE_INTEGER,
|
|
&blob, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeInteger(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
DWORD significantBytes, lenBytes;
|
|
BYTE padByte = 0, bytesNeeded;
|
|
BOOL pad = FALSE;
|
|
const CRYPT_INTEGER_BLOB *blob =
|
|
(const CRYPT_INTEGER_BLOB *)pvStructInfo;
|
|
|
|
significantBytes = blob->cbData;
|
|
if (significantBytes)
|
|
{
|
|
if (blob->pbData[significantBytes - 1] & 0x80)
|
|
{
|
|
/* negative, lop off leading (little-endian) 0xffs */
|
|
for (; significantBytes > 0 &&
|
|
blob->pbData[significantBytes - 1] == 0xff; significantBytes--)
|
|
;
|
|
if (blob->pbData[significantBytes - 1] < 0x80)
|
|
{
|
|
padByte = 0xff;
|
|
pad = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* positive, lop off leading (little-endian) zeroes */
|
|
for (; significantBytes > 0 &&
|
|
!blob->pbData[significantBytes - 1]; significantBytes--)
|
|
;
|
|
if (significantBytes == 0)
|
|
significantBytes = 1;
|
|
if (blob->pbData[significantBytes - 1] > 0x7f)
|
|
{
|
|
padByte = 0;
|
|
pad = TRUE;
|
|
}
|
|
}
|
|
}
|
|
if (pad)
|
|
CRYPT_EncodeLen(significantBytes + 1, NULL, &lenBytes);
|
|
else
|
|
CRYPT_EncodeLen(significantBytes, NULL, &lenBytes);
|
|
bytesNeeded = 1 + lenBytes + significantBytes;
|
|
if (pad)
|
|
bytesNeeded++;
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = bytesNeeded;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_INTEGER;
|
|
if (pad)
|
|
{
|
|
CRYPT_EncodeLen(significantBytes + 1, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
*pbEncoded++ = padByte;
|
|
}
|
|
else
|
|
{
|
|
CRYPT_EncodeLen(significantBytes, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
}
|
|
for (; significantBytes > 0; significantBytes--)
|
|
*(pbEncoded++) = blob->pbData[significantBytes - 1];
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeUnsignedInteger(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
DWORD significantBytes, lenBytes;
|
|
BYTE bytesNeeded;
|
|
BOOL pad = FALSE;
|
|
const CRYPT_INTEGER_BLOB *blob =
|
|
(const CRYPT_INTEGER_BLOB *)pvStructInfo;
|
|
|
|
significantBytes = blob->cbData;
|
|
if (significantBytes)
|
|
{
|
|
/* positive, lop off leading (little-endian) zeroes */
|
|
for (; significantBytes > 0 && !blob->pbData[significantBytes - 1];
|
|
significantBytes--)
|
|
;
|
|
if (significantBytes == 0)
|
|
significantBytes = 1;
|
|
if (blob->pbData[significantBytes - 1] > 0x7f)
|
|
pad = TRUE;
|
|
}
|
|
if (pad)
|
|
CRYPT_EncodeLen(significantBytes + 1, NULL, &lenBytes);
|
|
else
|
|
CRYPT_EncodeLen(significantBytes, NULL, &lenBytes);
|
|
bytesNeeded = 1 + lenBytes + significantBytes;
|
|
if (pad)
|
|
bytesNeeded++;
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = bytesNeeded;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_INTEGER;
|
|
if (pad)
|
|
{
|
|
CRYPT_EncodeLen(significantBytes + 1, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
*pbEncoded++ = 0;
|
|
}
|
|
else
|
|
{
|
|
CRYPT_EncodeLen(significantBytes, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
}
|
|
for (; significantBytes > 0; significantBytes--)
|
|
*(pbEncoded++) = blob->pbData[significantBytes - 1];
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeEnumerated(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
CRYPT_INTEGER_BLOB blob;
|
|
BOOL ret;
|
|
|
|
/* Encode as an unsigned integer, then change the tag to enumerated */
|
|
blob.cbData = sizeof(DWORD);
|
|
blob.pbData = (BYTE *)pvStructInfo;
|
|
ret = CRYPT_AsnEncodeUnsignedInteger(dwCertEncodingType,
|
|
X509_MULTI_BYTE_UINT, &blob, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
|
|
if (ret && pbEncoded)
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
pbEncoded[0] = ASN_ENUMERATED;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeUtcTime(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
SYSTEMTIME sysTime;
|
|
/* sorry, magic number: enough for tag, len, YYMMDDHHMMSSZ\0. I use a
|
|
* temporary buffer because the output buffer is not NULL-terminated.
|
|
*/
|
|
char buf[16];
|
|
static const DWORD bytesNeeded = sizeof(buf) - 1;
|
|
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = bytesNeeded;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
{
|
|
/* Sanity check the year, this is a two-digit year format */
|
|
ret = FileTimeToSystemTime((const FILETIME *)pvStructInfo,
|
|
&sysTime);
|
|
if (ret && (sysTime.wYear < 1950 || sysTime.wYear > 2050))
|
|
{
|
|
SetLastError(CRYPT_E_BAD_ENCODE);
|
|
ret = FALSE;
|
|
}
|
|
if (ret)
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara,
|
|
pbEncoded, pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
buf[0] = ASN_UTCTIME;
|
|
buf[1] = bytesNeeded - 2;
|
|
snprintf(buf + 2, sizeof(buf) - 2,
|
|
"%02d%02d%02d%02d%02d%02dZ", sysTime.wYear >= 2000 ?
|
|
sysTime.wYear - 2000 : sysTime.wYear - 1900,
|
|
sysTime.wMonth, sysTime.wDay, sysTime.wHour,
|
|
sysTime.wMinute, sysTime.wSecond);
|
|
memcpy(pbEncoded, buf, bytesNeeded);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeGeneralizedTime(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
SYSTEMTIME sysTime;
|
|
/* sorry, magic number: enough for tag, len, YYYYMMDDHHMMSSZ\0. I use a
|
|
* temporary buffer because the output buffer is not NULL-terminated.
|
|
*/
|
|
char buf[18];
|
|
static const DWORD bytesNeeded = sizeof(buf) - 1;
|
|
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = bytesNeeded;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
{
|
|
ret = FileTimeToSystemTime((const FILETIME *)pvStructInfo,
|
|
&sysTime);
|
|
if (ret)
|
|
ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded, bytesNeeded);
|
|
if (ret)
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
buf[0] = ASN_GENERALTIME;
|
|
buf[1] = bytesNeeded - 2;
|
|
snprintf(buf + 2, sizeof(buf) - 2, "%04d%02d%02d%02d%02d%02dZ",
|
|
sysTime.wYear, sysTime.wMonth, sysTime.wDay, sysTime.wHour,
|
|
sysTime.wMinute, sysTime.wSecond);
|
|
memcpy(pbEncoded, buf, bytesNeeded);
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeChoiceOfTime(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
SYSTEMTIME sysTime;
|
|
|
|
/* Check the year, if it's in the UTCTime range call that encode func */
|
|
if (!FileTimeToSystemTime((const FILETIME *)pvStructInfo, &sysTime))
|
|
return FALSE;
|
|
if (sysTime.wYear >= 1950 && sysTime.wYear <= 2050)
|
|
ret = CRYPT_AsnEncodeUtcTime(dwCertEncodingType, lpszStructType,
|
|
pvStructInfo, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
|
|
else
|
|
ret = CRYPT_AsnEncodeGeneralizedTime(dwCertEncodingType,
|
|
lpszStructType, pvStructInfo, dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded);
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeSequenceOfAny(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
DWORD bytesNeeded, dataLen, lenBytes, i;
|
|
const CRYPT_SEQUENCE_OF_ANY *seq =
|
|
(const CRYPT_SEQUENCE_OF_ANY *)pvStructInfo;
|
|
|
|
for (i = 0, dataLen = 0; i < seq->cValue; i++)
|
|
dataLen += seq->rgValue[i].cbData;
|
|
CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
|
|
bytesNeeded = 1 + lenBytes + dataLen;
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = bytesNeeded;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
|
|
pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_SEQUENCEOF;
|
|
CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
for (i = 0; i < seq->cValue; i++)
|
|
{
|
|
memcpy(pbEncoded, seq->rgValue[i].pbData,
|
|
seq->rgValue[i].cbData);
|
|
pbEncoded += seq->rgValue[i].cbData;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL CRYPT_AsnEncodeDistPoint(const CRL_DIST_POINT *distPoint,
|
|
BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret = TRUE;
|
|
struct AsnEncodeSequenceItem items[3] = { { 0 } };
|
|
struct AsnConstructedItem constructed = { 0 };
|
|
struct AsnEncodeTagSwappedItem swapped[3] = { { 0 } };
|
|
DWORD cItem = 0, cSwapped = 0;
|
|
|
|
switch (distPoint->DistPointName.dwDistPointNameChoice)
|
|
{
|
|
case CRL_DIST_POINT_NO_NAME:
|
|
/* do nothing */
|
|
break;
|
|
case CRL_DIST_POINT_FULL_NAME:
|
|
swapped[cSwapped].tag = ASN_CONTEXT | ASN_CONSTRUCTOR | 0;
|
|
swapped[cSwapped].pvStructInfo = &distPoint->DistPointName.u.FullName;
|
|
swapped[cSwapped].encodeFunc = CRYPT_AsnEncodeAltName;
|
|
constructed.tag = 0;
|
|
constructed.pvStructInfo = &swapped[cSwapped];
|
|
constructed.encodeFunc = CRYPT_AsnEncodeSwapTag;
|
|
items[cItem].pvStructInfo = &constructed;
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeConstructed;
|
|
cSwapped++;
|
|
cItem++;
|
|
break;
|
|
case CRL_DIST_POINT_ISSUER_RDN_NAME:
|
|
FIXME("unimplemented for CRL_DIST_POINT_ISSUER_RDN_NAME\n");
|
|
ret = FALSE;
|
|
break;
|
|
default:
|
|
ret = FALSE;
|
|
}
|
|
if (ret && distPoint->ReasonFlags.cbData)
|
|
{
|
|
swapped[cSwapped].tag = ASN_CONTEXT | 1;
|
|
swapped[cSwapped].pvStructInfo = &distPoint->ReasonFlags;
|
|
swapped[cSwapped].encodeFunc = CRYPT_AsnEncodeBits;
|
|
items[cItem].pvStructInfo = &swapped[cSwapped];
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeSwapTag;
|
|
cSwapped++;
|
|
cItem++;
|
|
}
|
|
if (ret && distPoint->CRLIssuer.cAltEntry)
|
|
{
|
|
swapped[cSwapped].tag = ASN_CONTEXT | ASN_CONSTRUCTOR | 2;
|
|
swapped[cSwapped].pvStructInfo = &distPoint->CRLIssuer;
|
|
swapped[cSwapped].encodeFunc = CRYPT_AsnEncodeAltName;
|
|
items[cItem].pvStructInfo = &swapped[cSwapped];
|
|
items[cItem].encodeFunc = CRYPT_AsnEncodeSwapTag;
|
|
cSwapped++;
|
|
cItem++;
|
|
}
|
|
if (ret)
|
|
ret = CRYPT_AsnEncodeSequence(X509_ASN_ENCODING, items, cItem, 0, NULL,
|
|
pbEncoded, pcbEncoded);
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeCRLDistPoints(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CRL_DIST_POINTS_INFO *info =
|
|
(const CRL_DIST_POINTS_INFO *)pvStructInfo;
|
|
|
|
if (!info->cDistPoint)
|
|
{
|
|
SetLastError(E_INVALIDARG);
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
DWORD bytesNeeded, dataLen, lenBytes, i;
|
|
|
|
ret = TRUE;
|
|
for (i = 0, dataLen = 0; ret && i < info->cDistPoint; i++)
|
|
{
|
|
DWORD len;
|
|
|
|
ret = CRYPT_AsnEncodeDistPoint(&info->rgDistPoint[i], NULL,
|
|
&len);
|
|
if (ret)
|
|
dataLen += len;
|
|
else if (GetLastError() == CRYPT_E_INVALID_IA5_STRING)
|
|
{
|
|
/* Have to propagate index of failing character */
|
|
*pcbEncoded = len;
|
|
}
|
|
}
|
|
if (ret)
|
|
{
|
|
CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
|
|
bytesNeeded = 1 + lenBytes + dataLen;
|
|
if (!pbEncoded)
|
|
{
|
|
*pcbEncoded = bytesNeeded;
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara,
|
|
pbEncoded, pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_SEQUENCEOF;
|
|
CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
|
|
pbEncoded += lenBytes;
|
|
for (i = 0; ret && i < info->cDistPoint; i++)
|
|
{
|
|
DWORD len = dataLen;
|
|
|
|
ret = CRYPT_AsnEncodeDistPoint(
|
|
&info->rgDistPoint[i], pbEncoded, &len);
|
|
if (ret)
|
|
{
|
|
pbEncoded += len;
|
|
dataLen -= len;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_AsnEncodeEnhancedKeyUsage(DWORD dwCertEncodingType,
|
|
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
|
|
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
|
|
{
|
|
BOOL ret;
|
|
|
|
__TRY
|
|
{
|
|
const CERT_ENHKEY_USAGE *usage =
|
|
(const CERT_ENHKEY_USAGE *)pvStructInfo;
|
|
DWORD bytesNeeded = 0, lenBytes, size, i;
|
|
|
|
ret = TRUE;
|
|
for (i = 0; ret && i < usage->cUsageIdentifier; i++)
|
|
{
|
|
ret = CRYPT_AsnEncodeOid(dwCertEncodingType, NULL,
|
|
usage->rgpszUsageIdentifier[i],
|
|
dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, NULL, &size);
|
|
if (ret)
|
|
bytesNeeded += size;
|
|
}
|
|
CRYPT_EncodeLen(bytesNeeded, NULL, &lenBytes);
|
|
bytesNeeded += 1 + lenBytes;
|
|
if (ret)
|
|
{
|
|
if (!pbEncoded)
|
|
*pcbEncoded = bytesNeeded;
|
|
else
|
|
{
|
|
if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara,
|
|
pbEncoded, pcbEncoded, bytesNeeded)))
|
|
{
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
|
|
pbEncoded = *(BYTE **)pbEncoded;
|
|
*pbEncoded++ = ASN_SEQUENCEOF;
|
|
CRYPT_EncodeLen(bytesNeeded - lenBytes - 1, pbEncoded,
|
|
&lenBytes);
|
|
pbEncoded += lenBytes;
|
|
for (i = 0; ret && i < usage->cUsageIdentifier; i++)
|
|
{
|
|
size = bytesNeeded;
|
|
ret = CRYPT_AsnEncodeOid(dwCertEncodingType, NULL,
|
|
usage->rgpszUsageIdentifier[i],
|
|
dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, pbEncoded,
|
|
&size);
|
|
if (ret)
|
|
{
|
|
pbEncoded += size;
|
|
bytesNeeded -= size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
|
ret = FALSE;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
BOOL WINAPI CryptEncodeObjectEx(DWORD dwCertEncodingType, LPCSTR lpszStructType,
|
|
const void *pvStructInfo, DWORD dwFlags, PCRYPT_ENCODE_PARA pEncodePara,
|
|
void *pvEncoded, DWORD *pcbEncoded)
|
|
{
|
|
static HCRYPTOIDFUNCSET set = NULL;
|
|
BOOL ret = FALSE;
|
|
CryptEncodeObjectExFunc encodeFunc = NULL;
|
|
HCRYPTOIDFUNCADDR hFunc = NULL;
|
|
|
|
TRACE("(0x%08lx, %s, %p, 0x%08lx, %p, %p, %p)\n", dwCertEncodingType,
|
|
debugstr_a(lpszStructType), pvStructInfo, dwFlags, pEncodePara,
|
|
pvEncoded, pcbEncoded);
|
|
|
|
if (!pvEncoded && !pcbEncoded)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
if ((dwCertEncodingType & CERT_ENCODING_TYPE_MASK) != X509_ASN_ENCODING
|
|
&& (dwCertEncodingType & CMSG_ENCODING_TYPE_MASK) != PKCS_7_ASN_ENCODING)
|
|
{
|
|
SetLastError(ERROR_FILE_NOT_FOUND);
|
|
return FALSE;
|
|
}
|
|
|
|
SetLastError(NOERROR);
|
|
if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG && pvEncoded)
|
|
*(BYTE **)pvEncoded = NULL;
|
|
if (!HIWORD(lpszStructType))
|
|
{
|
|
switch (LOWORD(lpszStructType))
|
|
{
|
|
case (WORD)X509_CERT:
|
|
encodeFunc = CRYPT_AsnEncodeCert;
|
|
break;
|
|
case (WORD)X509_CERT_TO_BE_SIGNED:
|
|
encodeFunc = CRYPT_AsnEncodeCertInfo;
|
|
break;
|
|
case (WORD)X509_CERT_CRL_TO_BE_SIGNED:
|
|
encodeFunc = CRYPT_AsnEncodeCRLInfo;
|
|
break;
|
|
case (WORD)X509_EXTENSIONS:
|
|
encodeFunc = CRYPT_AsnEncodeExtensions;
|
|
break;
|
|
case (WORD)X509_NAME_VALUE:
|
|
encodeFunc = CRYPT_AsnEncodeNameValue;
|
|
break;
|
|
case (WORD)X509_NAME:
|
|
encodeFunc = CRYPT_AsnEncodeName;
|
|
break;
|
|
case (WORD)X509_PUBLIC_KEY_INFO:
|
|
encodeFunc = CRYPT_AsnEncodePubKeyInfo;
|
|
break;
|
|
case (WORD)X509_ALTERNATE_NAME:
|
|
encodeFunc = CRYPT_AsnEncodeAltName;
|
|
break;
|
|
case (WORD)X509_BASIC_CONSTRAINTS:
|
|
encodeFunc = CRYPT_AsnEncodeBasicConstraints;
|
|
break;
|
|
case (WORD)X509_BASIC_CONSTRAINTS2:
|
|
encodeFunc = CRYPT_AsnEncodeBasicConstraints2;
|
|
break;
|
|
case (WORD)RSA_CSP_PUBLICKEYBLOB:
|
|
encodeFunc = CRYPT_AsnEncodeRsaPubKey;
|
|
break;
|
|
case (WORD)X509_OCTET_STRING:
|
|
encodeFunc = CRYPT_AsnEncodeOctets;
|
|
break;
|
|
case (WORD)X509_BITS:
|
|
case (WORD)X509_KEY_USAGE:
|
|
encodeFunc = CRYPT_AsnEncodeBits;
|
|
break;
|
|
case (WORD)X509_INTEGER:
|
|
encodeFunc = CRYPT_AsnEncodeInt;
|
|
break;
|
|
case (WORD)X509_MULTI_BYTE_INTEGER:
|
|
encodeFunc = CRYPT_AsnEncodeInteger;
|
|
break;
|
|
case (WORD)X509_MULTI_BYTE_UINT:
|
|
encodeFunc = CRYPT_AsnEncodeUnsignedInteger;
|
|
break;
|
|
case (WORD)X509_ENUMERATED:
|
|
encodeFunc = CRYPT_AsnEncodeEnumerated;
|
|
break;
|
|
case (WORD)X509_CHOICE_OF_TIME:
|
|
encodeFunc = CRYPT_AsnEncodeChoiceOfTime;
|
|
break;
|
|
case (WORD)X509_SEQUENCE_OF_ANY:
|
|
encodeFunc = CRYPT_AsnEncodeSequenceOfAny;
|
|
break;
|
|
case (WORD)PKCS_UTC_TIME:
|
|
encodeFunc = CRYPT_AsnEncodeUtcTime;
|
|
break;
|
|
case (WORD)X509_CRL_DIST_POINTS:
|
|
encodeFunc = CRYPT_AsnEncodeCRLDistPoints;
|
|
break;
|
|
case (WORD)X509_ENHANCED_KEY_USAGE:
|
|
encodeFunc = CRYPT_AsnEncodeEnhancedKeyUsage;
|
|
break;
|
|
default:
|
|
FIXME("%d: unimplemented\n", LOWORD(lpszStructType));
|
|
}
|
|
}
|
|
else if (!strcmp(lpszStructType, szOID_CERT_EXTENSIONS))
|
|
encodeFunc = CRYPT_AsnEncodeExtensions;
|
|
else if (!strcmp(lpszStructType, szOID_RSA_signingTime))
|
|
encodeFunc = CRYPT_AsnEncodeUtcTime;
|
|
else if (!strcmp(lpszStructType, szOID_CRL_REASON_CODE))
|
|
encodeFunc = CRYPT_AsnEncodeEnumerated;
|
|
else if (!strcmp(lpszStructType, szOID_KEY_USAGE))
|
|
encodeFunc = CRYPT_AsnEncodeBits;
|
|
else if (!strcmp(lpszStructType, szOID_SUBJECT_KEY_IDENTIFIER))
|
|
encodeFunc = CRYPT_AsnEncodeOctets;
|
|
else if (!strcmp(lpszStructType, szOID_BASIC_CONSTRAINTS))
|
|
encodeFunc = CRYPT_AsnEncodeBasicConstraints;
|
|
else if (!strcmp(lpszStructType, szOID_BASIC_CONSTRAINTS2))
|
|
encodeFunc = CRYPT_AsnEncodeBasicConstraints2;
|
|
else if (!strcmp(lpszStructType, szOID_ISSUER_ALT_NAME))
|
|
encodeFunc = CRYPT_AsnEncodeAltName;
|
|
else if (!strcmp(lpszStructType, szOID_ISSUER_ALT_NAME2))
|
|
encodeFunc = CRYPT_AsnEncodeAltName;
|
|
else if (!strcmp(lpszStructType, szOID_NEXT_UPDATE_LOCATION))
|
|
encodeFunc = CRYPT_AsnEncodeAltName;
|
|
else if (!strcmp(lpszStructType, szOID_SUBJECT_ALT_NAME))
|
|
encodeFunc = CRYPT_AsnEncodeAltName;
|
|
else if (!strcmp(lpszStructType, szOID_SUBJECT_ALT_NAME2))
|
|
encodeFunc = CRYPT_AsnEncodeAltName;
|
|
else if (!strcmp(lpszStructType, szOID_CRL_DIST_POINTS))
|
|
encodeFunc = CRYPT_AsnEncodeCRLDistPoints;
|
|
else if (!strcmp(lpszStructType, szOID_ENHANCED_KEY_USAGE))
|
|
encodeFunc = CRYPT_AsnEncodeEnhancedKeyUsage;
|
|
else
|
|
TRACE("OID %s not found or unimplemented, looking for DLL\n",
|
|
debugstr_a(lpszStructType));
|
|
if (!encodeFunc)
|
|
{
|
|
if (!set)
|
|
set = CryptInitOIDFunctionSet(CRYPT_OID_ENCODE_OBJECT_EX_FUNC, 0);
|
|
CryptGetOIDFunctionAddress(set, dwCertEncodingType, lpszStructType, 0,
|
|
(void **)&encodeFunc, &hFunc);
|
|
}
|
|
if (encodeFunc)
|
|
ret = encodeFunc(dwCertEncodingType, lpszStructType, pvStructInfo,
|
|
dwFlags, pEncodePara, pvEncoded, pcbEncoded);
|
|
else
|
|
SetLastError(ERROR_FILE_NOT_FOUND);
|
|
if (hFunc)
|
|
CryptFreeOIDFunctionAddress(hFunc, 0);
|
|
return ret;
|
|
}
|
|
|
|
BOOL WINAPI CryptExportPublicKeyInfo(HCRYPTPROV hCryptProv, DWORD dwKeySpec,
|
|
DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo, DWORD *pcbInfo)
|
|
{
|
|
return CryptExportPublicKeyInfoEx(hCryptProv, dwKeySpec, dwCertEncodingType,
|
|
NULL, 0, NULL, pInfo, pcbInfo);
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_ExportRsaPublicKeyInfoEx(HCRYPTPROV hCryptProv,
|
|
DWORD dwKeySpec, DWORD dwCertEncodingType, LPSTR pszPublicKeyObjId,
|
|
DWORD dwFlags, void *pvAuxInfo, PCERT_PUBLIC_KEY_INFO pInfo, DWORD *pcbInfo)
|
|
{
|
|
BOOL ret;
|
|
HCRYPTKEY key;
|
|
|
|
TRACE("(%ld, %ld, %08lx, %s, %08lx, %p, %p, %p)\n", hCryptProv, dwKeySpec,
|
|
dwCertEncodingType, debugstr_a(pszPublicKeyObjId), dwFlags, pvAuxInfo,
|
|
pInfo, pcbInfo);
|
|
|
|
if (!pszPublicKeyObjId)
|
|
pszPublicKeyObjId = szOID_RSA_RSA;
|
|
if ((ret = CryptGetUserKey(hCryptProv, dwKeySpec, &key)))
|
|
{
|
|
DWORD keySize = 0;
|
|
|
|
ret = CryptExportKey(key, 0, PUBLICKEYBLOB, 0, NULL, &keySize);
|
|
if (ret)
|
|
{
|
|
LPBYTE pubKey = CryptMemAlloc(keySize);
|
|
|
|
if (pubKey)
|
|
{
|
|
ret = CryptExportKey(key, 0, PUBLICKEYBLOB, 0, pubKey,
|
|
&keySize);
|
|
if (ret)
|
|
{
|
|
DWORD encodedLen = 0;
|
|
|
|
ret = CryptEncodeObject(dwCertEncodingType,
|
|
RSA_CSP_PUBLICKEYBLOB, pubKey, NULL, &encodedLen);
|
|
if (ret)
|
|
{
|
|
DWORD sizeNeeded = sizeof(CERT_PUBLIC_KEY_INFO) +
|
|
strlen(pszPublicKeyObjId) + 1 + encodedLen;
|
|
|
|
if (!pInfo)
|
|
*pcbInfo = sizeNeeded;
|
|
else if (*pcbInfo < sizeNeeded)
|
|
{
|
|
SetLastError(ERROR_MORE_DATA);
|
|
*pcbInfo = sizeNeeded;
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
{
|
|
pInfo->Algorithm.pszObjId = (char *)pInfo +
|
|
sizeof(CERT_PUBLIC_KEY_INFO);
|
|
lstrcpyA(pInfo->Algorithm.pszObjId,
|
|
pszPublicKeyObjId);
|
|
pInfo->Algorithm.Parameters.cbData = 0;
|
|
pInfo->Algorithm.Parameters.pbData = NULL;
|
|
pInfo->PublicKey.pbData =
|
|
(BYTE *)pInfo->Algorithm.pszObjId
|
|
+ lstrlenA(pInfo->Algorithm.pszObjId) + 1;
|
|
pInfo->PublicKey.cbData = encodedLen;
|
|
pInfo->PublicKey.cUnusedBits = 0;
|
|
ret = CryptEncodeObject(dwCertEncodingType,
|
|
RSA_CSP_PUBLICKEYBLOB, pubKey,
|
|
pInfo->PublicKey.pbData, &pInfo->PublicKey.cbData);
|
|
}
|
|
}
|
|
}
|
|
CryptMemFree(pubKey);
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
CryptDestroyKey(key);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
typedef BOOL (WINAPI *ExportPublicKeyInfoExFunc)(HCRYPTPROV hCryptProv,
|
|
DWORD dwKeySpec, DWORD dwCertEncodingType, LPSTR pszPublicKeyObjId,
|
|
DWORD dwFlags, void *pvAuxInfo, PCERT_PUBLIC_KEY_INFO pInfo, DWORD *pcbInfo);
|
|
|
|
BOOL WINAPI CryptExportPublicKeyInfoEx(HCRYPTPROV hCryptProv, DWORD dwKeySpec,
|
|
DWORD dwCertEncodingType, LPSTR pszPublicKeyObjId, DWORD dwFlags,
|
|
void *pvAuxInfo, PCERT_PUBLIC_KEY_INFO pInfo, DWORD *pcbInfo)
|
|
{
|
|
static HCRYPTOIDFUNCSET set = NULL;
|
|
BOOL ret;
|
|
ExportPublicKeyInfoExFunc exportFunc = NULL;
|
|
HCRYPTOIDFUNCADDR hFunc = NULL;
|
|
|
|
TRACE("(%ld, %ld, %08lx, %s, %08lx, %p, %p, %p)\n", hCryptProv, dwKeySpec,
|
|
dwCertEncodingType, debugstr_a(pszPublicKeyObjId), dwFlags, pvAuxInfo,
|
|
pInfo, pcbInfo);
|
|
|
|
if (!hCryptProv)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
|
|
if (pszPublicKeyObjId)
|
|
{
|
|
if (!set)
|
|
set = CryptInitOIDFunctionSet(CRYPT_OID_EXPORT_PUBLIC_KEY_INFO_FUNC,
|
|
0);
|
|
CryptGetOIDFunctionAddress(set, dwCertEncodingType, pszPublicKeyObjId,
|
|
0, (void **)&exportFunc, &hFunc);
|
|
}
|
|
if (!exportFunc)
|
|
exportFunc = CRYPT_ExportRsaPublicKeyInfoEx;
|
|
ret = exportFunc(hCryptProv, dwKeySpec, dwCertEncodingType,
|
|
pszPublicKeyObjId, dwFlags, pvAuxInfo, pInfo, pcbInfo);
|
|
if (hFunc)
|
|
CryptFreeOIDFunctionAddress(hFunc, 0);
|
|
return ret;
|
|
}
|
|
|
|
BOOL WINAPI CryptImportPublicKeyInfo(HCRYPTPROV hCryptProv,
|
|
DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo, HCRYPTKEY *phKey)
|
|
{
|
|
return CryptImportPublicKeyInfoEx(hCryptProv, dwCertEncodingType, pInfo,
|
|
0, 0, NULL, phKey);
|
|
}
|
|
|
|
static BOOL WINAPI CRYPT_ImportRsaPublicKeyInfoEx(HCRYPTPROV hCryptProv,
|
|
DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo, ALG_ID aiKeyAlg,
|
|
DWORD dwFlags, void *pvAuxInfo, HCRYPTKEY *phKey)
|
|
{
|
|
BOOL ret;
|
|
DWORD pubKeySize = 0;
|
|
|
|
TRACE("(%ld, %ld, %p, %d, %08lx, %p, %p)\n", hCryptProv,
|
|
dwCertEncodingType, pInfo, aiKeyAlg, dwFlags, pvAuxInfo, phKey);
|
|
|
|
ret = CryptDecodeObject(dwCertEncodingType, RSA_CSP_PUBLICKEYBLOB,
|
|
pInfo->PublicKey.pbData, pInfo->PublicKey.cbData, 0, NULL, &pubKeySize);
|
|
if (ret)
|
|
{
|
|
LPBYTE pubKey = CryptMemAlloc(pubKeySize);
|
|
|
|
if (pubKey)
|
|
{
|
|
ret = CryptDecodeObject(dwCertEncodingType, RSA_CSP_PUBLICKEYBLOB,
|
|
pInfo->PublicKey.pbData, pInfo->PublicKey.cbData, 0, pubKey,
|
|
&pubKeySize);
|
|
if (ret)
|
|
ret = CryptImportKey(hCryptProv, pubKey, pubKeySize, 0, 0,
|
|
phKey);
|
|
CryptMemFree(pubKey);
|
|
}
|
|
else
|
|
ret = FALSE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
typedef BOOL (WINAPI *ImportPublicKeyInfoExFunc)(HCRYPTPROV hCryptProv,
|
|
DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo, ALG_ID aiKeyAlg,
|
|
DWORD dwFlags, void *pvAuxInfo, HCRYPTKEY *phKey);
|
|
|
|
BOOL WINAPI CryptImportPublicKeyInfoEx(HCRYPTPROV hCryptProv,
|
|
DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo, ALG_ID aiKeyAlg,
|
|
DWORD dwFlags, void *pvAuxInfo, HCRYPTKEY *phKey)
|
|
{
|
|
static HCRYPTOIDFUNCSET set = NULL;
|
|
BOOL ret;
|
|
ImportPublicKeyInfoExFunc importFunc = NULL;
|
|
HCRYPTOIDFUNCADDR hFunc = NULL;
|
|
|
|
TRACE("(%ld, %ld, %p, %d, %08lx, %p, %p)\n", hCryptProv,
|
|
dwCertEncodingType, pInfo, aiKeyAlg, dwFlags, pvAuxInfo, phKey);
|
|
|
|
if (!set)
|
|
set = CryptInitOIDFunctionSet(CRYPT_OID_IMPORT_PUBLIC_KEY_INFO_FUNC, 0);
|
|
CryptGetOIDFunctionAddress(set, dwCertEncodingType,
|
|
pInfo->Algorithm.pszObjId, 0, (void **)&importFunc, &hFunc);
|
|
if (!importFunc)
|
|
importFunc = CRYPT_ImportRsaPublicKeyInfoEx;
|
|
ret = importFunc(hCryptProv, dwCertEncodingType, pInfo, aiKeyAlg, dwFlags,
|
|
pvAuxInfo, phKey);
|
|
if (hFunc)
|
|
CryptFreeOIDFunctionAddress(hFunc, 0);
|
|
return ret;
|
|
}
|