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bcrypt: Implement BCRYPT_HASH_REUSABLE_FLAG. 

Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Hans Leidekker 2019-03-06 10:14:28 +01:00 committed by Alexandre Julliard
parent 89f124ffc5
commit 98ea906b96
3 changed files with 173 additions and 77 deletions
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94
dlls/bcrypt/bcrypt_main.c
View File

@ -366,11 +366,15 @@ static NTSTATUS hash_finish( struct hash_impl *hash, enum alg_id alg_id,
return STATUS_SUCCESS;
}
#define HASH_FLAG_HMAC 0x01
#define HASH_FLAG_REUSABLE 0x02
struct hash
{
struct object hdr;
enum alg_id alg_id;
BOOL hmac;
ULONG flags;
UCHAR *secret;
ULONG secret_len;
struct hash_impl outer;
struct hash_impl inner;
};
@ -587,19 +591,45 @@ NTSTATUS WINAPI BCryptGetProperty( BCRYPT_HANDLE handle, LPCWSTR prop, UCHAR *bu
}
}
static NTSTATUS prepare_hash( struct hash *hash )
{
UCHAR buffer[MAX_HASH_BLOCK_BITS / 8] = {0};
int block_bytes, i;
NTSTATUS status;
/* initialize hash */
if ((status = hash_init( &hash->inner, hash->alg_id ))) return status;
if (!(hash->flags & HASH_FLAG_HMAC)) return STATUS_SUCCESS;
/* initialize hmac */
if ((status = hash_init( &hash->outer, hash->alg_id ))) return status;
block_bytes = alg_props[hash->alg_id].block_bits / 8;
if (hash->secret_len > block_bytes)
{
struct hash_impl temp;
if ((status = hash_init( &temp, hash->alg_id ))) return status;
if ((status = hash_update( &temp, hash->alg_id, hash->secret, hash->secret_len ))) return status;
if ((status = hash_finish( &temp, hash->alg_id, buffer,
alg_props[hash->alg_id].hash_length ))) return status;
}
else memcpy( buffer, hash->secret, hash->secret_len );
for (i = 0; i < block_bytes; i++) buffer[i] ^= 0x5c;
if ((status = hash_update( &hash->outer, hash->alg_id, buffer, block_bytes ))) return status;
for (i = 0; i < block_bytes; i++) buffer[i] ^= (0x5c ^ 0x36);
return hash_update( &hash->inner, hash->alg_id, buffer, block_bytes );
}
NTSTATUS WINAPI BCryptCreateHash( BCRYPT_ALG_HANDLE algorithm, BCRYPT_HASH_HANDLE *handle, UCHAR *object, ULONG objectlen,
UCHAR *secret, ULONG secretlen, ULONG flags )
{
struct algorithm *alg = algorithm;
UCHAR buffer[MAX_HASH_BLOCK_BITS / 8] = {0};
struct hash *hash;
int block_bytes;
NTSTATUS status;
int i;
TRACE( "%p, %p, %p, %u, %p, %u, %08x - stub\n", algorithm, handle, object, objectlen,
secret, secretlen, flags );
if (flags)
if (flags & ~BCRYPT_HASH_REUSABLE_FLAG)
{
FIXME( "unimplemented flags %08x\n", flags );
return STATUS_NOT_IMPLEMENTED;
@ -608,38 +638,23 @@ NTSTATUS WINAPI BCryptCreateHash( BCRYPT_ALG_HANDLE algorithm, BCRYPT_HASH_HANDL
if (!alg || alg->hdr.magic != MAGIC_ALG) return STATUS_INVALID_HANDLE;
if (object) FIXME( "ignoring object buffer\n" );
if (!(hash = heap_alloc( sizeof(*hash) ))) return STATUS_NO_MEMORY;
if (!(hash = heap_alloc_zero( sizeof(*hash) ))) return STATUS_NO_MEMORY;
hash->hdr.magic = MAGIC_HASH;
hash->alg_id = alg->id;
hash->hmac = alg->hmac;
if (alg->hmac) hash->flags = HASH_FLAG_HMAC;
if (flags & BCRYPT_HASH_REUSABLE_FLAG) hash->flags |= HASH_FLAG_REUSABLE;
/* initialize hash */
if ((status = hash_init( &hash->inner, hash->alg_id ))) goto end;
if (!hash->hmac) goto end;
/* initialize hmac */
if ((status = hash_init( &hash->outer, hash->alg_id ))) goto end;
block_bytes = alg_props[hash->alg_id].block_bits / 8;
if (secretlen > block_bytes)
if (secretlen && !(hash->secret = heap_alloc( secretlen )))
{
struct hash_impl temp;
if ((status = hash_init( &temp, hash->alg_id ))) goto end;
if ((status = hash_update( &temp, hash->alg_id, secret, secretlen ))) goto end;
if ((status = hash_finish( &temp, hash->alg_id, buffer,
alg_props[hash->alg_id].hash_length ))) goto end;
heap_free( hash );
return STATUS_NO_MEMORY;
}
else
{
memcpy( buffer, secret, secretlen );
}
for (i = 0; i < block_bytes; i++) buffer[i] ^= 0x5c;
if ((status = hash_update( &hash->outer, hash->alg_id, buffer, block_bytes ))) goto end;
for (i = 0; i < block_bytes; i++) buffer[i] ^= (0x5c ^ 0x36);
status = hash_update( &hash->inner, hash->alg_id, buffer, block_bytes );
memcpy( hash->secret, secret, secretlen );
hash->secret_len = secretlen;
end:
if (status != STATUS_SUCCESS)
if ((status = prepare_hash( hash )) != STATUS_SUCCESS)
{
heap_free( hash->secret );
heap_free( hash );
return status;
}
@ -664,6 +679,12 @@ NTSTATUS WINAPI BCryptDuplicateHash( BCRYPT_HASH_HANDLE handle, BCRYPT_HASH_HAND
return STATUS_NO_MEMORY;
memcpy( hash_copy, hash_orig, sizeof(*hash_orig) );
if (hash_orig->secret && !(hash_copy->secret = heap_alloc( hash_orig->secret_len )))
{
heap_free( hash_copy );
return STATUS_NO_MEMORY;
}
memcpy( hash_copy->secret, hash_orig->secret, hash_orig->secret_len );
*handle_copy = hash_copy;
return STATUS_SUCCESS;
@ -677,6 +698,7 @@ NTSTATUS WINAPI BCryptDestroyHash( BCRYPT_HASH_HANDLE handle )
if (!hash || hash->hdr.magic != MAGIC_HASH) return STATUS_INVALID_PARAMETER;
hash->hdr.magic = 0;
heap_free( hash->secret );
heap_free( hash );
return STATUS_SUCCESS;
}
@ -705,13 +727,19 @@ NTSTATUS WINAPI BCryptFinishHash( BCRYPT_HASH_HANDLE handle, UCHAR *output, ULON
if (!hash || hash->hdr.magic != MAGIC_HASH) return STATUS_INVALID_HANDLE;
if (!output) return STATUS_INVALID_PARAMETER;
if (!hash->hmac)
return hash_finish( &hash->inner, hash->alg_id, output, size );
if (!(hash->flags & HASH_FLAG_HMAC))
{
if ((status = hash_finish( &hash->inner, hash->alg_id, output, size ))) return status;
if (hash->flags & HASH_FLAG_REUSABLE) return prepare_hash( hash );
return STATUS_SUCCESS;
}
hash_length = alg_props[hash->alg_id].hash_length;
if ((status = hash_finish( &hash->inner, hash->alg_id, buffer, hash_length ))) return status;
if ((status = hash_update( &hash->outer, hash->alg_id, buffer, hash_length ))) return status;
return hash_finish( &hash->outer, hash->alg_id, output, size );
if ((status = hash_finish( &hash->outer, hash->alg_id, output, size ))) return status;
if (hash->flags & HASH_FLAG_REUSABLE) return prepare_hash( hash );
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptHash( BCRYPT_ALG_HANDLE algorithm, UCHAR *secret, ULONG secretlen,

121
dlls/bcrypt/tests/bcrypt.c
View File

@ -221,7 +221,9 @@ struct hash_test
const char *alg;
unsigned hash_size;
const char *hash;
const char *hash2;
const char *hmac_hash;
const char *hmac_hash2;
};
static void test_hash(const struct hash_test *test)
@ -269,6 +271,35 @@ static void test_hash(const struct hash_test *test)
ret = pBCryptDestroyHash(hash);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
hash = NULL;
len = sizeof(buf);
ret = pBCryptCreateHash(alg, &hash, buf, len, NULL, 0, BCRYPT_HASH_REUSABLE_FLAG);
ok(ret == STATUS_SUCCESS || broken(ret == STATUS_INVALID_PARAMETER) /* < win8 */, "got %08x\n", ret);
if (ret == STATUS_SUCCESS)
{
ret = pBCryptHashData(hash, (UCHAR *)"test", sizeof("test"), 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
memset(hash_buf, 0, sizeof(hash_buf));
ret = pBCryptFinishHash(hash, hash_buf, test->hash_size, 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
format_hash( hash_buf, test->hash_size, str );
ok(!strcmp(str, test->hash), "got %s\n", str);
/* reuse it */
ret = pBCryptHashData(hash, (UCHAR *)"tset", sizeof("tset"), 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
memset(hash_buf, 0, sizeof(hash_buf));
ret = pBCryptFinishHash(hash, hash_buf, test->hash_size, 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
format_hash( hash_buf, test->hash_size, str );
ok(!strcmp(str, test->hash2), "got %s\n", str);
ret = pBCryptDestroyHash(hash);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
}
ret = pBCryptCloseAlgorithmProvider(alg, 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
@ -298,6 +329,35 @@ static void test_hash(const struct hash_test *test)
ret = pBCryptDestroyHash(hash);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
hash = NULL;
len = sizeof(buf_hmac);
ret = pBCryptCreateHash(alg, &hash, buf_hmac, len, (UCHAR *)"key", sizeof("key"), BCRYPT_HASH_REUSABLE_FLAG);
ok(ret == STATUS_SUCCESS || broken(ret == STATUS_INVALID_PARAMETER) /* < win8 */, "got %08x\n", ret);
if (ret == STATUS_SUCCESS)
{
ret = pBCryptHashData(hash, (UCHAR *)"test", sizeof("test"), 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
memset(hmac_hash, 0, sizeof(hmac_hash));
ret = pBCryptFinishHash(hash, hmac_hash, test->hash_size, 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
format_hash( hmac_hash, test->hash_size, str );
ok(!strcmp(str, test->hmac_hash), "got %s\n", str);
/* reuse it */
ret = pBCryptHashData(hash, (UCHAR *)"tset", sizeof("tset"), 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
memset(hmac_hash, 0, sizeof(hmac_hash));
ret = pBCryptFinishHash(hash, hmac_hash, test->hash_size, 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
format_hash( hmac_hash, test->hash_size, str );
ok(!strcmp(str, test->hmac_hash2), "got %s\n", str);
ret = pBCryptDestroyHash(hash);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
}
ret = pBCryptDestroyHash(hash);
ok(ret == STATUS_INVALID_PARAMETER, "got %08x\n", ret);
@ -310,52 +370,57 @@ static void test_hash(const struct hash_test *test)
static void test_hashes(void)
{
static const struct hash_test tests[] = {
static const struct hash_test tests[] =
{
"SHA1",
20,
{ "SHA1", 20,
"961fa64958818f767707072755d7018dcd278e94",
"2472cf65d0e090618d769d3e46f0d9446cf212da"
"9314f62ff64197143c91fc86de37e9ae776a3fb8",
"2472cf65d0e090618d769d3e46f0d9446cf212da",
"b2d2ba8cfd714d474cf0d9622cc5d15e1f53d53f",
},
{
"SHA256",
32,
{ "SHA256", 32,
"ceb73749c899693706ede1e30c9929b3fd5dd926163831c2fb8bd41e6efb1126",
"34c1aa473a4468a91d06e7cdbc75bc4f93b830ccfc2a47ffd74e8e6ed29e4c72"
"ea0938c118a7b15954f41b85195f2b42aec3a9429c63f593cfa65c137ffaa986",
"34c1aa473a4468a91d06e7cdbc75bc4f93b830ccfc2a47ffd74e8e6ed29e4c72",
"55feb7052060bd99e33f36eb0982c7f4856eb6a84fbefe19a1afd9faafc3af6f",
},
{
"SHA384",
48,
{ "SHA384", 48,
"62b21e90c9022b101671ba1f808f8631a8149f0f12904055839a35c1ca78ae53"
"63eed1e743a692d70e0504b0cfd12ef9",
"724db7c0bbc51ef1ac3fc793083fc54c0e5c423faec9b11378c01c236b19aaaf"
"a45177ad055feaf003968cc40ece44c7",
"4b3e6d6ff2da121790ab7e7b9247583e3a7eed2db5bd4dabc680303b1608f37d"
"fdc836d96a704c03283bc05b4f6c5eb8"
"fdc836d96a704c03283bc05b4f6c5eb8",
"03e1818e5c165a0e54619e513acb06c393e1a6cb0ddbb4036b5f29617b334642"
"e6e0be8b214d8508595b17a8c4b4e7db",
},
{
"SHA512",
64,
{ "SHA512", 64,
"d55ced17163bf5386f2cd9ff21d6fd7fe576a915065c24744d09cfae4ec84ee1"
"ef6ef11bfbc5acce3639bab725b50a1fe2c204f8c820d6d7db0df0ecbc49c5ca",
"7752d707b54d2b00e7d1c09120d189475b0fd2e31ebb988cf0a01fc8492ddc0b"
"3ca9c9ca61d9d7d1fb65ca7665e87f043c1d5bc9f786f8345e951c2d91ac594f",
"415fb6b10018ca03b38a1b1399c42ac0be5e8aceddb9a73103f5e543bf2d888f"
"2eecf91373941f9315dd730a77937fa92444450fbece86f409d9cb5ec48c6513"
"2eecf91373941f9315dd730a77937fa92444450fbece86f409d9cb5ec48c6513",
"1487bcecba46ae677622fa499e4cb2f0fdf92f6f3427cba76382d537a06e49c3"
"3e70a2fc1fc730092bf21128c3704cc6387f6dfbf7e2f9f315bbb894505a1205",
},
{
"MD2",
16,
{ "MD2", 16,
"1bb33606ba908912a84221109d29cd7e",
"7f05b0638d77f4a27f3a9c4d353cd648"
"b9a6ad9323b17e2d0cd389dddd6ef78a",
"7f05b0638d77f4a27f3a9c4d353cd648",
"05980873e6bfdd05dd7b30078de7e42a",
},
{
"MD4",
16,
{ "MD4", 16,
"74b5db93c0b41e36ca7074338fc0b637",
"bc2e8ac4d8248ed21b8d26227a30ea3a"
"a14a9ff2059a8c28f47b01e6bc48a1bf",
"bc2e8ac4d8248ed21b8d26227a30ea3a",
"b609db0eb4b8669db74f2c20099701e4",
},
{
"MD5",
16,
{ "MD5", 16,
"e2a3e68d23ce348b8f68b3079de3d4c9",
"7bda029b93fa8d817fcc9e13d6bdf092"
"bcdd7ca574342aa9db0e212348eacb16",
"7bda029b93fa8d817fcc9e13d6bdf092",
"dd636ab8e9592c5088e57c37d44c5bb3",
}
};
unsigned i;

3
include/bcrypt.h
View File

@ -222,6 +222,9 @@ typedef PVOID BCRYPT_HASH_HANDLE;
/* Flags for BCryptEncrypt/BCryptDecrypt */
#define BCRYPT_BLOCK_PADDING 0x00000001
/* Flags for BCryptCreateHash */
#define BCRYPT_HASH_REUSABLE_FLAG 0x00000020
NTSTATUS WINAPI BCryptCloseAlgorithmProvider(BCRYPT_ALG_HANDLE, ULONG);
NTSTATUS WINAPI BCryptCreateHash(BCRYPT_ALG_HANDLE, BCRYPT_HASH_HANDLE *, PUCHAR, ULONG, PUCHAR, ULONG, ULONG);
NTSTATUS WINAPI BCryptDecrypt(BCRYPT_KEY_HANDLE, PUCHAR, ULONG, VOID *, PUCHAR, ULONG, PUCHAR, ULONG, ULONG *, ULONG);