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dssenh: Implement CPSignHash.

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Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Hans Leidekker 2020-10-14 11:03:55 +02:00 committed by Alexandre Julliard
parent e1374be736
commit d176e537b3
2 changed files with 40 additions and 6 deletions
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34
dlls/dssenh/main.c
View file

@ -718,10 +718,42 @@ BOOL WINAPI CPDeriveKey( HCRYPTPROV hprov, ALG_ID algid, HCRYPTHASH hhash, DWORD
return FALSE;
}
static DWORD get_signature_length( DWORD algid )
{
switch (algid)
{
case AT_SIGNATURE:
case CALG_DSS_SIGN: return 40;
default:
FIXME( "unhandled algorithm %u\n", algid );
return 0;
}
}
#define MAX_HASH_LEN 20
BOOL WINAPI CPSignHash( HCRYPTPROV hprov, HCRYPTHASH hhash, DWORD keyspec, const WCHAR *desc, DWORD flags, BYTE *sig,
DWORD *siglen )
{
return FALSE;
struct container *container = (struct container *)hprov;
struct hash *hash = (struct hash *)hhash;
UCHAR hashval[MAX_HASH_LEN];
ULONG len, hashlen = sizeof(hashval);
TRACE( "%p, %p, %u, %s, %08x, %p, %p\n", (void *)hprov, (void *)hhash, keyspec, debugstr_w(desc), flags, sig,
siglen );
if (container->magic != MAGIC_CONTAINER || !container->sign_key) return FALSE;
if (hash->magic != MAGIC_HASH) return FALSE;
if (!(len = get_signature_length( container->sign_key->algid ))) return FALSE;
if (!CPGetHashParam( hprov, hhash, HP_HASHVAL, hashval, &hashlen, 0 )) return FALSE;
if (*siglen < len)
{
*siglen = len;
return TRUE;
}
return !BCryptSignHash( container->sign_key->handle, NULL, hashval, hashlen, sig, *siglen, siglen, 0 );
}
BOOL WINAPI CPVerifySignature( HCRYPTPROV hprov, HCRYPTHASH hhash, const BYTE *sig, DWORD siglen, HCRYPTKEY hpubkey,

12
dlls/dssenh/tests/dssenh.c
View file

@ -889,12 +889,8 @@ static void test_signhash_array(HCRYPTPROV hProv, const struct signature_test *t
ok(!memcmp(hashValue1, hashValue2, hashLen2), "Hashes were not identical.\n");
/* Sign hash 1 */
signLen1 = 0;
result = CryptSignHashA(hHash1, AT_SIGNATURE, NULL, 0, NULL, &signLen1);
if (!result)
{
skip("skipping sign tests\n");
return;
}
ok(result, "Failed to get signature length, got %x\n", GetLastError());
ok(signLen1 == 40, "Expected a 40-byte signature, got %d\n", signLen1);
@ -902,6 +898,7 @@ static void test_signhash_array(HCRYPTPROV hProv, const struct signature_test *t
ok(result, "Failed to sign hash, got %x\n", GetLastError());
/* Sign hash 2 */
signLen2 = 0;
result = CryptSignHashA(hHash2, AT_SIGNATURE, NULL, 0, NULL, &signLen2);
ok(result, "Failed to get signature length, got %x\n", GetLastError());
ok(signLen2 == 40, "Expected a 40-byte signature, got %d\n", signLen2);
@ -943,6 +940,11 @@ static void test_signhash_array(HCRYPTPROV hProv, const struct signature_test *t
/* Verify signed hash 1 */
result = CryptVerifySignatureA(hHash1, signValue1, sizeof(signValue1), pubKey, NULL, 0);
if (!result)
{
skip("skipping sign tests\n");
return;
}
ok(result, "Failed to verify signature, got %x\n", GetLastError());
result = CryptCreateHash(hProv, CALG_SHA, 0, 0, &hHash2);