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crypt32: CertComparePublicKeyInfo should not try to decode a non-RSA public key. 

Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Dmitry Timoshkov 2018-10-26 13:17:26 +03:00 committed by Alexandre Julliard
parent d34dc5fa3c
commit 8f488a71b9
2 changed files with 7 additions and 6 deletions
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7
dlls/crypt32/cert.c
View File

@ -28,6 +28,7 @@
#include "winternl.h"
#define CRYPT_OID_INFO_HAS_EXTRA_FIELDS
#include "wincrypt.h"
#include "snmp.h"
#include "bcrypt.h"
#include "winnls.h"
#include "rpc.h"
@ -1242,6 +1243,12 @@ BOOL WINAPI CertComparePublicKeyInfo(DWORD dwCertEncodingType,
TRACE("(%08x, %p, %p)\n", dwCertEncodingType, pPublicKey1, pPublicKey2);
/* RSA public key data should start with ASN_SEQUENCE,
* otherwise it's not a RSA_CSP_PUBLICKEYBLOB.
*/
if (!pPublicKey1->PublicKey.cbData || pPublicKey1->PublicKey.pbData[0] != ASN_SEQUENCE)
dwCertEncodingType = 0;
switch (GET_CERT_ENCODING_TYPE(dwCertEncodingType))
{
case 0: /* Seems to mean "raw binary bits" */

6
dlls/crypt32/tests/cert.c
View File

@ -3210,7 +3210,6 @@ static void testComparePublicKeyInfo(void)
ret = CertComparePublicKeyInfo(0, &info1, &info2);
ok(ret, "CertComparePublicKeyInfo failed: %08x\n", GetLastError());
ret = CertComparePublicKeyInfo(X509_ASN_ENCODING, &info1, &info2);
todo_wine
ok(ret, "CertComparePublicKeyInfo failed: %08x\n", GetLastError());
/* Different OIDs appear to compare */
@ -3219,14 +3218,12 @@ todo_wine
ret = CertComparePublicKeyInfo(0, &info1, &info2);
ok(ret, "CertComparePublicKeyInfo failed: %08x\n", GetLastError());
ret = CertComparePublicKeyInfo(X509_ASN_ENCODING, &info1, &info2);
todo_wine
ok(ret, "CertComparePublicKeyInfo failed: %08x\n", GetLastError());
info2.Algorithm.pszObjId = oid_x957_dsa;
ret = CertComparePublicKeyInfo(0, &info1, &info2);
ok(ret, "CertComparePublicKeyInfo failed: %08x\n", GetLastError());
ret = CertComparePublicKeyInfo(X509_ASN_ENCODING, &info1, &info2);
todo_wine
ok(ret, "CertComparePublicKeyInfo failed: %08x\n", GetLastError());
info1.PublicKey.cbData = sizeof(bits1);
@ -3238,7 +3235,6 @@ todo_wine
ret = CertComparePublicKeyInfo(0, &info1, &info2);
ok(ret, "CertComparePublicKeyInfo failed: %08x\n", GetLastError());
ret = CertComparePublicKeyInfo(X509_ASN_ENCODING, &info1, &info2);
todo_wine
ok(ret, "CertComparePublicKeyInfo failed: %08x\n", GetLastError());
info2.Algorithm.pszObjId = oid_rsa_rsa;
@ -3297,11 +3293,9 @@ todo_wine
ret = CertComparePublicKeyInfo(0, &info1, &info1);
ok(ret, "CertComparePublicKeyInfo: as raw binary: keys should be equal\n");
ret = CertComparePublicKeyInfo(X509_ASN_ENCODING, &info1, &info1);
todo_wine
ok(ret, "CertComparePublicKeyInfo: as ASN.1 encoded: keys should be equal\n");
info1.PublicKey.cbData--; /* kill one byte, make ASN.1 encoded data invalid */
ret = CertComparePublicKeyInfo(X509_ASN_ENCODING, &info1, &info1);
todo_wine
ok(ret, "CertComparePublicKeyInfo: as ASN.1 encoded: keys should be equal\n");
/* ASN.1 encoded non-comparing case */