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crypt32: Implement querying computed hash of a decoded hash message.

This commit is contained in:
Juan Lang 2007-07-19 07:32:10 -07:00 committed by Alexandre Julliard
parent 22e7c2f38e
commit 74bd61203d
2 changed files with 34 additions and 2 deletions
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34
dlls/crypt32/msg.c
View File

@ -594,6 +594,7 @@ typedef struct _CDecodeMsg
CryptMsgBase base;
DWORD type;
HCRYPTPROV crypt_prov;
HCRYPTHASH hash;
CRYPT_DATA_BLOB msg_data;
PCONTEXT_PROPERTY_LIST properties;
} CDecodeMsg;
@ -604,6 +605,7 @@ static void CDecodeMsg_Close(HCRYPTMSG hCryptMsg)
if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
CryptReleaseContext(msg->crypt_prov, 0);
CryptDestroyHash(msg->hash);
CryptMemFree(msg->msg_data.pbData);
ContextPropertyList_Free(msg->properties);
}
@ -835,6 +837,37 @@ static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
break;
}
case CMSG_COMPUTED_HASH_PARAM:
if (!msg->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->hash);
if (ret)
{
CRYPT_DATA_BLOB content;
ret = ContextPropertyList_FindProperty(msg->properties,
CMSG_CONTENT_PARAM, &content);
if (ret)
ret = CryptHashData(msg->hash, content.pbData,
content.cbData, 0);
}
CryptMemFree(hashAlgoID);
}
else
ret = TRUE;
if (ret)
ret = CryptGetHashParam(msg->hash, HP_HASHVAL, pvData, pcbData, 0);
break;
default:
{
CRYPT_DATA_BLOB blob;
@ -877,6 +910,7 @@ HCRYPTMSG WINAPI CryptMsgOpenToDecode(DWORD dwMsgEncodingType, DWORD dwFlags,
msg->crypt_prov = CRYPT_GetDefaultProvider();
msg->base.open_flags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
}
msg->hash = 0;
msg->msg_data.cbData = 0;
msg->msg_data.pbData = NULL;
msg->properties = ContextPropertyList_Create();

2
dlls/crypt32/tests/msg.c
View File

@ -1224,7 +1224,6 @@ static void test_decode_msg_get_param(void)
ret = CryptMsgUpdate(msg, hashEmptyContent, sizeof(hashEmptyContent), TRUE);
check_param("empty hash content", msg, CMSG_CONTENT_PARAM, NULL, 0);
check_param("empty hash hash data", msg, CMSG_HASH_DATA_PARAM, NULL, 0);
todo_wine
check_param("empty hash computed hash", msg, CMSG_COMPUTED_HASH_PARAM,
emptyHashParam, sizeof(emptyHashParam));
CryptMsgClose(msg);
@ -1234,7 +1233,6 @@ static void test_decode_msg_get_param(void)
sizeof(msgData));
check_param("hash hash data", msg, CMSG_HASH_DATA_PARAM, hashParam,
sizeof(hashParam));
todo_wine
check_param("hash computed hash", msg, CMSG_COMPUTED_HASH_PARAM,
hashParam, sizeof(hashParam));
size = strlen(szOID_RSA_data) + 1;