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crypt32: Update a hash message's hash handles when decoding it.

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Juan Lang 2007-08-21 07:07:43 -07:00 committed by Alexandre Julliard
parent d2dc7d78a9
commit ed6fbb2712
1 changed files with 69 additions and 17 deletions
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86
dlls/crypt32/msg.c
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@ -902,8 +902,13 @@ static BOOL CSignedMsgData_AppendMessageDigestAttribute(
return ret;
}
typedef enum {
Sign,
Verify
} SignOrVerify;
static BOOL CSignedMsgData_UpdateAuthenticatedAttributes(
CSignedMsgData *msg_data)
CSignedMsgData *msg_data, SignOrVerify flag)
{
DWORD i;
BOOL ret = TRUE;
@ -914,18 +919,22 @@ static BOOL CSignedMsgData_UpdateAuthenticatedAttributes(
{
if (msg_data->info->rgSignerInfo[i].AuthAttrs.cAttr)
{
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 };
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);
/* 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;
@ -1000,14 +1009,14 @@ static BOOL CSignedMsgData_Sign(CSignedMsgData *msg_data)
}
static BOOL CSignedMsgData_Update(CSignedMsgData *msg_data,
const BYTE *pbData, DWORD cbData, BOOL fFinal)
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);
if (ret)
ret = CSignedMsgData_UpdateAuthenticatedAttributes(msg_data, flag);
if (ret && flag == Sign)
ret = CSignedMsgData_Sign(msg_data);
}
return ret;
@ -1137,7 +1146,8 @@ static BOOL CSignedEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
if (msg->base.streamed || (msg->base.open_flags & CMSG_DETACHED_FLAG))
{
ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData, fFinal);
ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData, fFinal,
Sign);
if (msg->base.streamed)
FIXME("streamed partial stub\n");
}
@ -1161,7 +1171,7 @@ static BOOL CSignedEncodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
ret = TRUE;
if (ret)
ret = CSignedMsgData_Update(&msg->msg_data, pbData, cbData,
fFinal);
fFinal, Sign);
}
}
return ret;
@ -1337,7 +1347,10 @@ static void CDecodeMsg_Close(HCRYPTMSG hCryptMsg)
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);
@ -1472,7 +1485,46 @@ static BOOL CDecodeMsg_DecodeSignedContent(CDecodeMsg *msg,
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