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bcrypt: Implement BCryptEncrypt.

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Partially based on a patch by Michael Müller.

Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Hans Leidekker 2017-08-16 11:23:47 +02:00 committed by Alexandre Julliard
parent 9c5a200de5
commit 7f8dd873c8
3 changed files with 169 additions and 14 deletions
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133
dlls/bcrypt/bcrypt_main.c
View File

@ -51,6 +51,9 @@ WINE_DECLARE_DEBUG_CHANNEL(winediag);
static void *libgnutls_handle;
#define MAKE_FUNCPTR(f) static typeof(f) * p##f
MAKE_FUNCPTR(gnutls_cipher_init);
MAKE_FUNCPTR(gnutls_cipher_deinit);
MAKE_FUNCPTR(gnutls_cipher_encrypt2);
MAKE_FUNCPTR(gnutls_global_deinit);
MAKE_FUNCPTR(gnutls_global_init);
MAKE_FUNCPTR(gnutls_global_set_log_function);
@ -80,6 +83,9 @@ static BOOL gnutls_initialize(void)
goto fail; \
}
LOAD_FUNCPTR(gnutls_cipher_init)
LOAD_FUNCPTR(gnutls_cipher_deinit)
LOAD_FUNCPTR(gnutls_cipher_encrypt2)
LOAD_FUNCPTR(gnutls_global_deinit)
LOAD_FUNCPTR(gnutls_global_init)
LOAD_FUNCPTR(gnutls_global_set_log_function)
@ -723,8 +729,69 @@ static NTSTATUS key_init( struct key *key, enum alg_id id, const UCHAR *secret,
return STATUS_SUCCESS;
}
static gnutls_cipher_algorithm_t get_gnutls_cipher( const struct key *key )
{
switch (key->alg_id)
{
case ALG_ID_AES:
FIXME( "handle block size and chaining mode\n" );
return GNUTLS_CIPHER_AES_128_CBC;
default:
FIXME( "algorithm %u not supported\n", key->alg_id );
return GNUTLS_CIPHER_UNKNOWN;
}
}
static NTSTATUS key_set_params( struct key *key, UCHAR *iv, ULONG iv_len )
{
gnutls_cipher_algorithm_t cipher;
gnutls_datum_t secret, vector;
int ret;
if (key->handle)
{
pgnutls_cipher_deinit( key->handle );
key->handle = NULL;
}
if ((cipher = get_gnutls_cipher( key )) == GNUTLS_CIPHER_UNKNOWN)
return STATUS_NOT_SUPPORTED;
secret.data = key->secret;
secret.size = key->secret_len;
if (iv)
{
vector.data = iv;
vector.size = iv_len;
}
if ((ret = pgnutls_cipher_init( &key->handle, cipher, &secret, iv ? &vector : NULL )))
{
pgnutls_perror( ret );
return STATUS_INTERNAL_ERROR;
}
return STATUS_SUCCESS;
}
static NTSTATUS key_encrypt( struct key *key, const UCHAR *input, ULONG input_len, UCHAR *output,
ULONG output_len )
{
int ret;
if ((ret = pgnutls_cipher_encrypt2( key->handle, input, input_len, output, output_len )))
{
pgnutls_perror( ret );
return STATUS_INTERNAL_ERROR;
}
return STATUS_SUCCESS;
}
static NTSTATUS key_destroy( struct key *key )
{
if (key->handle) pgnutls_cipher_deinit( key->handle );
HeapFree( GetProcessHeap(), 0, key->secret );
HeapFree( GetProcessHeap(), 0, key );
return STATUS_SUCCESS;
@ -742,6 +809,19 @@ static NTSTATUS key_init( struct key *key, enum alg_id id, const UCHAR *secret,
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_set_params( struct key *key, UCHAR *iv, ULONG iv_len )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_encrypt( struct key *key, const UCHAR *input, ULONG input_len, UCHAR *output,
ULONG output_len )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_destroy( struct key *key )
{
ERR( "support for keys not available at build time\n" );
@ -789,9 +869,58 @@ NTSTATUS WINAPI BCryptEncrypt( BCRYPT_KEY_HANDLE handle, UCHAR *input, ULONG inp
void *padding, UCHAR *iv, ULONG iv_len, UCHAR *output,
ULONG output_len, ULONG *ret_len, ULONG flags )
{
FIXME( "%p, %p, %u, %p, %p, %u, %p, %u, %p, %08x\n", handle, input, input_len,
struct key *key = handle;
ULONG bytes_left = input_len;
UCHAR *buf, *src, *dst;
NTSTATUS status;
TRACE( "%p, %p, %u, %p, %p, %u, %p, %u, %p, %08x\n", handle, input, input_len,
padding, iv, iv_len, output, output_len, ret_len, flags );
return STATUS_NOT_IMPLEMENTED;
if (!key || key->hdr.magic != MAGIC_KEY) return STATUS_INVALID_HANDLE;
if (padding)
{
FIXME( "padding info not implemented\n" );
return STATUS_NOT_IMPLEMENTED;
}
if (flags & ~BCRYPT_BLOCK_PADDING)
{
FIXME( "flags %08x not implemented\n", flags );
return STATUS_NOT_IMPLEMENTED;
}
if ((status = key_set_params( key, iv, iv_len ))) return status;
*ret_len = input_len;
if (flags & BCRYPT_BLOCK_PADDING)
*ret_len = (input_len + key->block_size) & ~(key->block_size - 1);
else if (input_len & (key->block_size - 1))
return STATUS_INVALID_BUFFER_SIZE;
if (!output) return STATUS_SUCCESS;
if (output_len < *ret_len) return STATUS_BUFFER_TOO_SMALL;
src = input;
dst = output;
while (bytes_left >= key->block_size)
{
if ((status = key_encrypt( key, src, key->block_size, dst, key->block_size ))) return status;
bytes_left -= key->block_size;
src += key->block_size;
dst += key->block_size;
}
if (flags & BCRYPT_BLOCK_PADDING)
{
if (!(buf = HeapAlloc( GetProcessHeap(), 0, key->block_size ))) return STATUS_NO_MEMORY;
memcpy( buf, src, bytes_left );
memset( buf + bytes_left, key->block_size - bytes_left, key->block_size - bytes_left );
status = key_encrypt( key, buf, key->block_size, dst, key->block_size );
HeapFree( GetProcessHeap(), 0, buf );
}
return status;
}
NTSTATUS WINAPI BCryptDecrypt( BCRYPT_KEY_HANDLE handle, UCHAR *input, ULONG input_len,

48
dlls/bcrypt/tests/bcrypt.c
View File

@ -774,11 +774,6 @@ static void test_BCryptGenerateSymmetricKey(void)
size = 0xdeadbeef;
ret = pBCryptEncrypt(key, NULL, 0, NULL, NULL, 0, NULL, 0, &size, 0);
if (ret == STATUS_NOT_IMPLEMENTED) /* remove whole IF when Wine is fixed */
{
todo_wine ok(0, "BCryptEncrypt not implemented\n");
return;
}
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
ok(!size, "got %u\n", size);
@ -800,6 +795,11 @@ static void test_BCryptGenerateSymmetricKey(void)
size = 0xdeadbeef;
ret = pBCryptDecrypt(key, NULL, 0, NULL, NULL, 0, NULL, 0, &size, 0);
if (ret == STATUS_NOT_IMPLEMENTED) /* remove whole IF when Wine is fixed */
{
todo_wine ok(0, "BCryptDecrypt not implemented\n");
return;
}
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
ok(!size, "got %u\n", size);
@ -833,14 +833,21 @@ static void test_BCryptEncrypt(void)
{0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f};
static UCHAR data[] =
{0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10};
static UCHAR data2[] =
{0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10};
static UCHAR expected[] =
{0xc6,0xa1,0x3b,0x37,0x87,0x8f,0x5b,0x82,0x6f,0x4f,0x81,0x62,0xa1,0xc8,0xd8,0x79};
static UCHAR expected2[] =
{0xc6,0xa1,0x3b,0x37,0x87,0x8f,0x5b,0x82,0x6f,0x4f,0x81,0x62,0xa1,0xc8,0xd8,0x79,
0x28,0x73,0x3d,0xef,0x84,0x8f,0xb0,0xa6,0x5d,0x1a,0x51,0xb7,0xec,0x8f,0xea,0xe9};
static UCHAR expected3[] =
{0xc6,0xa1,0x3b,0x37,0x87,0x8f,0x5b,0x82,0x6f,0x4f,0x81,0x62,0xa1,0xc8,0xd8,0x79,
0xb1,0xa2,0x92,0x73,0xbe,0x2c,0x42,0x07,0xa5,0xac,0xe3,0x93,0x39,0x8c,0xb6,0xfb,
0x87,0x5d,0xea,0xa3,0x7e,0x0f,0xde,0xfa,0xd9,0xec,0x6c,0x4e,0x3c,0x76,0x86,0xe4};
BCRYPT_ALG_HANDLE aes;
BCRYPT_KEY_HANDLE key;
UCHAR *buf, ciphertext[32], ivbuf[16];
UCHAR *buf, ciphertext[48], ivbuf[16];
ULONG size, len, i;
NTSTATUS ret;
@ -860,11 +867,6 @@ static void test_BCryptEncrypt(void)
size = 0;
memcpy(ivbuf, iv, sizeof(iv));
ret = pBCryptEncrypt(key, data, 16, NULL, ivbuf, 16, NULL, 0, &size, 0);
if (ret == STATUS_NOT_IMPLEMENTED) /* remove whole IF when Wine is fixed */
{
todo_wine ok(0, "BCryptEncrypt not implemented\n");
return;
}
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
ok(size == 16, "got %u\n", size);
@ -902,6 +904,23 @@ static void test_BCryptEncrypt(void)
for (i = 0; i < 32; i++)
ok(ciphertext[i] == expected2[i], "%u: %02x != %02x\n", i, ciphertext[i], expected2[i]);
/* input size is a multiple of block size, block padding set */
size = 0;
memcpy(ivbuf, iv, sizeof(iv));
ret = pBCryptEncrypt(key, data2, 32, NULL, ivbuf, 16, NULL, 0, &size, BCRYPT_BLOCK_PADDING);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
ok(size == 48, "got %u\n", size);
size = 0;
memcpy(ivbuf, iv, sizeof(iv));
memset(ciphertext, 0, sizeof(ciphertext));
ret = pBCryptEncrypt(key, data2, 32, NULL, ivbuf, 16, ciphertext, 48, &size, BCRYPT_BLOCK_PADDING);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
ok(size == 48, "got %u\n", size);
ok(!memcmp(ciphertext, expected3, sizeof(expected3)), "wrong data\n");
for (i = 0; i < 48; i++)
ok(ciphertext[i] == expected3[i], "%u: %02x != %02x\n", i, ciphertext[i], expected3[i]);
/* output size too small */
size = 0;
memcpy(ivbuf, iv, sizeof(iv));
@ -910,6 +929,13 @@ static void test_BCryptEncrypt(void)
ok(ret == STATUS_BUFFER_TOO_SMALL, "got %08x\n", ret);
ok(size == 32, "got %u\n", size);
size = 0;
memcpy(ivbuf, iv, sizeof(iv));
memset(ciphertext, 0, sizeof(ciphertext));
ret = pBCryptEncrypt(key, data2, 32, NULL, ivbuf, 16, ciphertext, 32, &size, BCRYPT_BLOCK_PADDING);
ok(ret == STATUS_BUFFER_TOO_SMALL, "got %08x\n", ret);
ok(size == 48, "got %u\n", size);
ret = pBCryptDestroyKey(key);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
HeapFree(GetProcessHeap(), 0, buf);

2
dlls/ncrypt/ncrypt.spec
View File

@ -11,7 +11,7 @@
@ stub BCryptDeriveKeyCapi
@ stub BCryptDeriveKeyPBKDF2
@ stdcall BCryptDestroyHash(ptr) bcrypt.BCryptDestroyHash
@ stub BCryptDestroyKey
@ stdcall BCryptDestroyKey(ptr) bcrypt.BCryptDestroyKey
@ stub BCryptDestroySecret
@ stdcall BCryptDuplicateHash(ptr ptr ptr long long) bcrypt.BCryptDuplicateHash
@ stub BCryptDuplicateKey