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crypt32: Test and fix encoding and decoding of attributes in PKCS signers.

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This commit is contained in:
Juan Lang 2007-07-25 18:13:45 -07:00 committed by Alexandre Julliard
parent 3a85fa6b15
commit c58cb379eb
3 changed files with 92 additions and 22 deletions
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27
dlls/crypt32/decode.c
View file

@ -1896,9 +1896,8 @@ static BOOL WINAPI CRYPT_AsnDecodePKCSAttributesInternal(
DWORD cbEncoded, DWORD dwFlags, PCRYPT_DECODE_PARA pDecodePara,
void *pvStructInfo, DWORD *pcbStructInfo)
{
struct AsnArrayDescriptor arrayDesc = { ASN_CONSTRUCTOR | ASN_SETOF,
CRYPT_AsnDecodePKCSAttribute, sizeof(CRYPT_ATTRIBUTE), TRUE,
offsetof(CRYPT_ATTRIBUTE, pszObjId) };
struct AsnArrayDescriptor arrayDesc = { 0, CRYPT_AsnDecodePKCSAttribute,
sizeof(CRYPT_ATTRIBUTE), TRUE, offsetof(CRYPT_ATTRIBUTE, pszObjId) };
PCRYPT_ATTRIBUTES attrs = (PCRYPT_ATTRIBUTES)pvStructInfo;
BOOL ret;
@ -1921,8 +1920,12 @@ static BOOL WINAPI CRYPT_AsnDecodePKCSAttributes(DWORD dwCertEncodingType,
{
DWORD bytesNeeded;
if ((ret = CRYPT_AsnDecodePKCSAttributesInternal(dwCertEncodingType,
lpszStructType, pbEncoded, cbEncoded,
if (!cbEncoded)
SetLastError(CRYPT_E_ASN1_EOD);
else if (pbEncoded[0] != (ASN_CONSTRUCTOR | ASN_SETOF))
SetLastError(CRYPT_E_ASN1_CORRUPT);
else if ((ret = CRYPT_AsnDecodePKCSAttributesInternal(
dwCertEncodingType, lpszStructType, pbEncoded, cbEncoded,
dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
{
if (!pvStructInfo)
@ -3813,19 +3816,21 @@ static BOOL WINAPI CRYPT_AsnDecodePKCSSignerInfo(DWORD dwCertEncodingType,
{ ASN_SEQUENCEOF, offsetof(CMSG_SIGNER_INFO, HashAlgorithm),
CRYPT_AsnDecodeAlgorithmId, sizeof(CRYPT_ALGORITHM_IDENTIFIER),
FALSE, TRUE, offsetof(CMSG_SIGNER_INFO, HashAlgorithm.pszObjId), 0 },
{ ASN_CONSTRUCTOR | ASN_CONTEXT | 0,
offsetof(CMSG_SIGNER_INFO, AuthAttrs),
CRYPT_AsnDecodePKCSAttributesInternal, sizeof(CRYPT_ATTRIBUTES),
TRUE, TRUE, offsetof(CMSG_SIGNER_INFO, AuthAttrs.rgAttr), 0 },
{ ASN_SEQUENCEOF, offsetof(CMSG_SIGNER_INFO, HashEncryptionAlgorithm),
CRYPT_AsnDecodeAlgorithmId, sizeof(CRYPT_ALGORITHM_IDENTIFIER),
FALSE, TRUE, offsetof(CMSG_SIGNER_INFO,
HashEncryptionAlgorithm.pszObjId), 0 },
{ ASN_CONSTRUCTOR | ASN_SETOF, offsetof(CMSG_SIGNER_INFO, AuthAttrs),
CRYPT_AsnDecodePKCSAttributesInternal, sizeof(CRYPT_ATTRIBUTES),
TRUE, TRUE, offsetof(CMSG_SIGNER_INFO, AuthAttrs.rgAttr), 0 },
{ ASN_CONSTRUCTOR | ASN_SETOF, offsetof(CMSG_SIGNER_INFO, UnauthAttrs),
CRYPT_AsnDecodePKCSAttributesInternal, sizeof(CRYPT_ATTRIBUTES),
TRUE, TRUE, offsetof(CMSG_SIGNER_INFO, UnauthAttrs.rgAttr), 0 },
{ ASN_OCTETSTRING, offsetof(CMSG_SIGNER_INFO, EncryptedHash),
CRYPT_AsnDecodeOctetsInternal, sizeof(CRYPT_DER_BLOB),
FALSE, TRUE, offsetof(CMSG_SIGNER_INFO, EncryptedHash.pbData), 0 },
{ ASN_CONSTRUCTOR | ASN_CONTEXT | 1,
offsetof(CMSG_SIGNER_INFO, UnauthAttrs),
CRYPT_AsnDecodePKCSAttributesInternal, sizeof(CRYPT_ATTRIBUTES),
TRUE, TRUE, offsetof(CMSG_SIGNER_INFO, UnauthAttrs.rgAttr), 0 },
};
ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,

32
dlls/crypt32/encode.c
View file

@ -3201,26 +3201,36 @@ static BOOL WINAPI CRYPT_AsnEncodePKCSSignerInfo(DWORD dwCertEncodingType,
{ &info->Issuer, CRYPT_AsnEncodeIssuerSerialNumber, 0 },
{ &info->HashAlgorithm, CRYPT_AsnEncodeAlgorithmIdWithNullParams,
0 },
{ &info->HashEncryptionAlgorithm,
CRYPT_AsnEncodeAlgorithmIdWithNullParams, 0 },
};
DWORD cItem = 4;
struct AsnEncodeTagSwappedItem swapped[2] = { { 0 } };
DWORD cItem = 3, cSwapped = 0;
if (info->AuthAttrs.cAttr)
{
items[cItem].pvStructInfo = &info->AuthAttrs;
items[cItem].encodeFunc = CRYPT_AsnEncodePKCSAttributes;
cItem++;
}
if (info->UnauthAttrs.cAttr)
{
items[cItem].pvStructInfo = &info->UnauthAttrs;
items[cItem].encodeFunc = CRYPT_AsnEncodePKCSAttributes;
swapped[cSwapped].tag = ASN_CONTEXT | ASN_CONSTRUCTOR | 0;
swapped[cSwapped].pvStructInfo = &info->AuthAttrs;
swapped[cSwapped].encodeFunc = CRYPT_AsnEncodePKCSAttributes;
items[cItem].pvStructInfo = &swapped[cSwapped];
items[cItem].encodeFunc = CRYPT_AsnEncodeSwapTag;
cSwapped++;
cItem++;
}
items[cItem].pvStructInfo = &info->HashEncryptionAlgorithm;
items[cItem].encodeFunc = CRYPT_AsnEncodeAlgorithmIdWithNullParams;
cItem++;
items[cItem].pvStructInfo = &info->EncryptedHash;
items[cItem].encodeFunc = CRYPT_AsnEncodeOctets;
cItem++;
if (info->UnauthAttrs.cAttr)
{
swapped[cSwapped].tag = ASN_CONTEXT | ASN_CONSTRUCTOR | 1;
swapped[cSwapped].pvStructInfo = &info->UnauthAttrs;
swapped[cSwapped].encodeFunc = CRYPT_AsnEncodePKCSAttributes;
items[cItem].pvStructInfo = &swapped[cSwapped];
items[cItem].encodeFunc = CRYPT_AsnEncodeSwapTag;
cSwapped++;
cItem++;
}
ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items, cItem,
dwFlags, pEncodePara, pbEncoded, pcbEncoded);
}

55
dlls/crypt32/tests/encode.c
View file

@ -4924,6 +4924,14 @@ static const BYTE PKCSSignerWithHash[] = {
0x01,0x01,0x30,0x06,0x06,0x02,0x2a,0x03,0x05,0x00,0x30,0x06,0x06,0x02,0x2d,
0x06,0x05,0x00,0x04,0x10,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
0x0a,0x0b,0x0c,0x0d,0x0e,0x0f };
static const BYTE PKCSSignerWithAuthAttr[] = {
0x30,0x62,0x02,0x01,0x00,0x30,0x19,0x30,0x14,0x31,0x12,0x30,0x10,0x06,0x03,
0x55,0x04,0x03,0x13,0x09,0x4a,0x75,0x61,0x6e,0x20,0x4c,0x61,0x6e,0x67,0x02,
0x01,0x01,0x30,0x06,0x06,0x02,0x2a,0x03,0x05,0x00,0xa0,0x20,0x30,0x1e,0x06,
0x03,0x55,0x04,0x03,0x31,0x17,0x30,0x15,0x31,0x13,0x30,0x11,0x06,0x03,0x55,
0x04,0x03,0x13,0x0a,0x4a,0x75,0x61,0x6e,0x20,0x4c,0x61,0x6e,0x67,0x00,0x30,
0x06,0x06,0x02,0x2d,0x06,0x05,0x00,0x04,0x10,0x00,0x01,0x02,0x03,0x04,0x05,
0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f };
static void test_encodePKCSSignerInfo(DWORD dwEncoding)
{
@ -4932,6 +4940,10 @@ static void test_encodePKCSSignerInfo(DWORD dwEncoding)
LPBYTE buf = NULL;
DWORD size = 0;
CMSG_SIGNER_INFO info = { 0 };
char oid_common_name[] = szOID_COMMON_NAME;
CRYPT_ATTR_BLOB commonName = { sizeof(encodedCommonName),
(LPBYTE)encodedCommonName };
CRYPT_ATTRIBUTE attr = { oid_common_name, 1, &commonName };
SetLastError(0xdeadbeef);
ret = CryptEncodeObjectEx(dwEncoding, PKCS7_SIGNER_INFO, &info,
@ -5053,6 +5065,29 @@ static void test_encodePKCSSignerInfo(DWORD dwEncoding)
LocalFree(buf);
}
}
info.AuthAttrs.cAttr = 1;
info.AuthAttrs.rgAttr = &attr;
SetLastError(0xdeadbeef);
ret = CryptEncodeObjectEx(dwEncoding, PKCS7_SIGNER_INFO, &info,
CRYPT_ENCODE_ALLOC_FLAG, NULL, (BYTE *)&buf, &size);
if (!(dwEncoding & PKCS_7_ASN_ENCODING))
ok(!ret && GetLastError() == E_INVALIDARG,
"Expected E_INVALIDARG, got %08x\n", GetLastError());
else
{
ok(ret, "CryptEncodeObjectEx failed: %x\n", GetLastError());
if (buf)
{
ok(size == sizeof(PKCSSignerWithAuthAttr), "Unexpected size %d\n",
size);
if (size == sizeof(PKCSSignerWithAuthAttr))
ok(!memcmp(buf, PKCSSignerWithAuthAttr, size),
"Unexpected value\n");
else
ok(0, "Unexpected value\n");
LocalFree(buf);
}
}
}
static void test_decodePKCSSignerInfo(DWORD dwEncoding)
@ -5157,6 +5192,26 @@ static void test_decodePKCSSignerInfo(DWORD dwEncoding)
"Unexpected value\n");
LocalFree(buf);
}
ret = CryptDecodeObjectEx(dwEncoding, PKCS7_SIGNER_INFO,
PKCSSignerWithAuthAttr, sizeof(PKCSSignerWithAuthAttr),
CRYPT_DECODE_ALLOC_FLAG, NULL, (BYTE *)&buf, &size);
if (buf)
{
info = (CMSG_SIGNER_INFO *)buf;
ok(info->AuthAttrs.cAttr == 1, "Expected 1 attribute, got %d\n",
info->AuthAttrs.cAttr);
ok(!strcmp(info->AuthAttrs.rgAttr[0].pszObjId, szOID_COMMON_NAME),
"Expected %s, got %s\n", szOID_COMMON_NAME,
info->AuthAttrs.rgAttr[0].pszObjId);
ok(info->AuthAttrs.rgAttr[0].cValue == 1, "Expected 1 value, got %d\n",
info->AuthAttrs.rgAttr[0].cValue);
ok(info->AuthAttrs.rgAttr[0].rgValue[0].cbData ==
sizeof(encodedCommonName), "Unexpected size %d\n",
info->AuthAttrs.rgAttr[0].rgValue[0].cbData);
ok(!memcmp(info->AuthAttrs.rgAttr[0].rgValue[0].pbData,
encodedCommonName, sizeof(encodedCommonName)), "Unexpected value\n");
LocalFree(buf);
}
}
/* Free *pInfo with HeapFree */