ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Sweden-Number/dlls/bcrypt/bcrypt_main.c

1628 lines
49 KiB
C
Raw Blame History

/*
* Copyright 2009 Henri Verbeet for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#ifdef HAVE_COMMONCRYPTO_COMMONCRYPTOR_H
#include <AvailabilityMacros.h>
#include <CommonCrypto/CommonCryptor.h>
#elif defined(HAVE_GNUTLS_CIPHER_INIT)
#include <gnutls/gnutls.h>
#include <gnutls/crypto.h>
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "ntsecapi.h"
#include "bcrypt.h"
#include "bcrypt_internal.h"
#include "wine/debug.h"
#include "wine/heap.h"
#include "wine/library.h"
#include "wine/unicode.h"
WINE_DEFAULT_DEBUG_CHANNEL(bcrypt);
static HINSTANCE instance;
#if defined(HAVE_GNUTLS_CIPHER_INIT) && !defined(HAVE_COMMONCRYPTO_COMMONCRYPTOR_H)
WINE_DECLARE_DEBUG_CHANNEL(winediag);
/* Not present in gnutls version < 3.0 */
static int (*pgnutls_cipher_tag)(gnutls_cipher_hd_t handle, void * tag, size_t tag_size);
static int (*pgnutls_cipher_add_auth)(gnutls_cipher_hd_t handle, const void *ptext, size_t ptext_size);
static void *libgnutls_handle;
#define MAKE_FUNCPTR(f) static typeof(f) * p##f
MAKE_FUNCPTR(gnutls_cipher_decrypt2);
MAKE_FUNCPTR(gnutls_cipher_deinit);
MAKE_FUNCPTR(gnutls_cipher_encrypt2);
MAKE_FUNCPTR(gnutls_cipher_init);
MAKE_FUNCPTR(gnutls_global_deinit);
MAKE_FUNCPTR(gnutls_global_init);
MAKE_FUNCPTR(gnutls_global_set_log_function);
MAKE_FUNCPTR(gnutls_global_set_log_level);
MAKE_FUNCPTR(gnutls_perror);
#undef MAKE_FUNCPTR
#if GNUTLS_VERSION_MAJOR < 3
#define GNUTLS_CIPHER_AES_192_CBC 92
#define GNUTLS_CIPHER_AES_128_GCM 93
#define GNUTLS_CIPHER_AES_256_GCM 94
#endif
static int compat_gnutls_cipher_tag(gnutls_cipher_hd_t handle, void *tag, size_t tag_size)
{
return GNUTLS_E_UNKNOWN_CIPHER_TYPE;
}
static int compat_gnutls_cipher_add_auth(gnutls_cipher_hd_t handle, const void *ptext, size_t ptext_size)
{
return GNUTLS_E_UNKNOWN_CIPHER_TYPE;
}
static void gnutls_log( int level, const char *msg )
{
TRACE( "<%d> %s", level, msg );
}
static BOOL gnutls_initialize(void)
{
int ret;
if (!(libgnutls_handle = wine_dlopen( SONAME_LIBGNUTLS, RTLD_NOW, NULL, 0 )))
{
ERR_(winediag)( "failed to load libgnutls, no support for encryption\n" );
return FALSE;
}
#define LOAD_FUNCPTR(f) \
if (!(p##f = wine_dlsym( libgnutls_handle, #f, NULL, 0 ))) \
{ \
ERR( "failed to load %s\n", #f ); \
goto fail; \
}
LOAD_FUNCPTR(gnutls_cipher_decrypt2)
LOAD_FUNCPTR(gnutls_cipher_deinit)
LOAD_FUNCPTR(gnutls_cipher_encrypt2)
LOAD_FUNCPTR(gnutls_cipher_init)
LOAD_FUNCPTR(gnutls_global_deinit)
LOAD_FUNCPTR(gnutls_global_init)
LOAD_FUNCPTR(gnutls_global_set_log_function)
LOAD_FUNCPTR(gnutls_global_set_log_level)
LOAD_FUNCPTR(gnutls_perror)
#undef LOAD_FUNCPTR
if (!(pgnutls_cipher_tag = wine_dlsym( libgnutls_handle, "gnutls_cipher_tag", NULL, 0 )))
{
WARN("gnutls_cipher_tag not found\n");
pgnutls_cipher_tag = compat_gnutls_cipher_tag;
}
if (!(pgnutls_cipher_add_auth = wine_dlsym( libgnutls_handle, "gnutls_cipher_add_auth", NULL, 0 )))
{
WARN("gnutls_cipher_add_auth not found\n");
pgnutls_cipher_add_auth = compat_gnutls_cipher_add_auth;
}
if ((ret = pgnutls_global_init()) != GNUTLS_E_SUCCESS)
{
pgnutls_perror( ret );
goto fail;
}
if (TRACE_ON( bcrypt ))
{
pgnutls_global_set_log_level( 4 );
pgnutls_global_set_log_function( gnutls_log );
}
return TRUE;
fail:
wine_dlclose( libgnutls_handle, NULL, 0 );
libgnutls_handle = NULL;
return FALSE;
}
static void gnutls_uninitialize(void)
{
pgnutls_global_deinit();
wine_dlclose( libgnutls_handle, NULL, 0 );
libgnutls_handle = NULL;
}
#endif /* HAVE_GNUTLS_CIPHER_INIT && !HAVE_COMMONCRYPTO_COMMONCRYPTOR_H */
NTSTATUS WINAPI BCryptAddContextFunction(ULONG table, LPCWSTR context, ULONG iface, LPCWSTR function, ULONG pos)
{
FIXME("%08x, %s, %08x, %s, %u: stub\n", table, debugstr_w(context), iface, debugstr_w(function), pos);
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptAddContextFunctionProvider(ULONG table, LPCWSTR context, ULONG iface, LPCWSTR function, LPCWSTR provider, ULONG pos)
{
FIXME("%08x, %s, %08x, %s, %s, %u: stub\n", table, debugstr_w(context), iface, debugstr_w(function), debugstr_w(provider), pos);
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptRemoveContextFunction(ULONG table, LPCWSTR context, ULONG iface, LPCWSTR function)
{
FIXME("%08x, %s, %08x, %s: stub\n", table, debugstr_w(context), iface, debugstr_w(function));
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS WINAPI BCryptRemoveContextFunctionProvider(ULONG table, LPCWSTR context, ULONG iface, LPCWSTR function, LPCWSTR provider)
{
FIXME("%08x, %s, %08x, %s, %s: stub\n", table, debugstr_w(context), iface, debugstr_w(function), debugstr_w(provider));
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS WINAPI BCryptRegisterProvider(LPCWSTR provider, ULONG flags, PCRYPT_PROVIDER_REG reg)
{
FIXME("%s, %08x, %p: stub\n", debugstr_w(provider), flags, reg);
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptUnregisterProvider(LPCWSTR provider)
{
FIXME("%s: stub\n", debugstr_w(provider));
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS WINAPI BCryptEnumAlgorithms(ULONG dwAlgOperations, ULONG *pAlgCount,
BCRYPT_ALGORITHM_IDENTIFIER **ppAlgList, ULONG dwFlags)
{
FIXME("%08x, %p, %p, %08x - stub\n", dwAlgOperations, pAlgCount, ppAlgList, dwFlags);
*ppAlgList=NULL;
*pAlgCount=0;
return STATUS_NOT_IMPLEMENTED;
}
#define MAGIC_ALG (('A' << 24) | ('L' << 16) | ('G' << 8) | '0')
#define MAGIC_HASH (('H' << 24) | ('A' << 16) | ('S' << 8) | 'H')
#define MAGIC_KEY (('K' << 24) | ('E' << 16) | ('Y' << 8) | '0')
struct object
{
ULONG magic;
};
enum alg_id
{
ALG_ID_AES,
ALG_ID_MD2,
ALG_ID_MD4,
ALG_ID_MD5,
ALG_ID_RNG,
ALG_ID_SHA1,
ALG_ID_SHA256,
ALG_ID_SHA384,
ALG_ID_SHA512
};
enum mode_id
{
MODE_ID_CBC,
MODE_ID_GCM
};
#define MAX_HASH_OUTPUT_BYTES 64
#define MAX_HASH_BLOCK_BITS 1024
static const struct {
ULONG object_length;
ULONG hash_length;
ULONG block_bits;
const WCHAR *alg_name;
} alg_props[] = {
/* ALG_ID_AES */ { 654, 0, 0, BCRYPT_AES_ALGORITHM },
/* ALG_ID_MD2 */ { 270, 16, 128, BCRYPT_MD2_ALGORITHM },
/* ALG_ID_MD4 */ { 270, 16, 512, BCRYPT_MD4_ALGORITHM },
/* ALG_ID_MD5 */ { 274, 16, 512, BCRYPT_MD5_ALGORITHM },
/* ALG_ID_RNG */ { 0, 0, 0, BCRYPT_RNG_ALGORITHM },
/* ALG_ID_SHA1 */ { 278, 20, 512, BCRYPT_SHA1_ALGORITHM },
/* ALG_ID_SHA256 */ { 286, 32, 512, BCRYPT_SHA256_ALGORITHM },
/* ALG_ID_SHA384 */ { 382, 48, 1024, BCRYPT_SHA384_ALGORITHM },
/* ALG_ID_SHA512 */ { 382, 64, 1024, BCRYPT_SHA512_ALGORITHM }
};
struct algorithm
{
struct object hdr;
enum alg_id id;
enum mode_id mode;
BOOL hmac;
};
NTSTATUS WINAPI BCryptGenRandom(BCRYPT_ALG_HANDLE handle, UCHAR *buffer, ULONG count, ULONG flags)
{
const DWORD supported_flags = BCRYPT_USE_SYSTEM_PREFERRED_RNG;
struct algorithm *algorithm = handle;
TRACE("%p, %p, %u, %08x - semi-stub\n", handle, buffer, count, flags);
if (!algorithm)
{
/* It's valid to call without an algorithm if BCRYPT_USE_SYSTEM_PREFERRED_RNG
* is set. In this case the preferred system RNG is used.
*/
if (!(flags & BCRYPT_USE_SYSTEM_PREFERRED_RNG))
return STATUS_INVALID_HANDLE;
}
else if (algorithm->hdr.magic != MAGIC_ALG || algorithm->id != ALG_ID_RNG)
return STATUS_INVALID_HANDLE;
if (!buffer)
return STATUS_INVALID_PARAMETER;
if (flags & ~supported_flags)
FIXME("unsupported flags %08x\n", flags & ~supported_flags);
if (algorithm)
FIXME("ignoring selected algorithm\n");
/* When zero bytes are requested the function returns success too. */
if (!count)
return STATUS_SUCCESS;
if (algorithm || (flags & BCRYPT_USE_SYSTEM_PREFERRED_RNG))
{
if (RtlGenRandom(buffer, count))
return STATUS_SUCCESS;
}
FIXME("called with unsupported parameters, returning error\n");
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS WINAPI BCryptOpenAlgorithmProvider( BCRYPT_ALG_HANDLE *handle, LPCWSTR id, LPCWSTR implementation, DWORD flags )
{
const DWORD supported_flags = BCRYPT_ALG_HANDLE_HMAC_FLAG;
struct algorithm *alg;
enum alg_id alg_id;
TRACE( "%p, %s, %s, %08x\n", handle, wine_dbgstr_w(id), wine_dbgstr_w(implementation), flags );
if (!handle || !id) return STATUS_INVALID_PARAMETER;
if (flags & ~supported_flags)
{
FIXME( "unsupported flags %08x\n", flags & ~supported_flags);
return STATUS_NOT_IMPLEMENTED;
}
if (!strcmpW( id, BCRYPT_AES_ALGORITHM )) alg_id = ALG_ID_AES;
else if (!strcmpW( id, BCRYPT_MD2_ALGORITHM )) alg_id = ALG_ID_MD2;
else if (!strcmpW( id, BCRYPT_MD4_ALGORITHM )) alg_id = ALG_ID_MD4;
else if (!strcmpW( id, BCRYPT_MD5_ALGORITHM )) alg_id = ALG_ID_MD5;
else if (!strcmpW( id, BCRYPT_RNG_ALGORITHM )) alg_id = ALG_ID_RNG;
else if (!strcmpW( id, BCRYPT_SHA1_ALGORITHM )) alg_id = ALG_ID_SHA1;
else if (!strcmpW( id, BCRYPT_SHA256_ALGORITHM )) alg_id = ALG_ID_SHA256;
else if (!strcmpW( id, BCRYPT_SHA384_ALGORITHM )) alg_id = ALG_ID_SHA384;
else if (!strcmpW( id, BCRYPT_SHA512_ALGORITHM )) alg_id = ALG_ID_SHA512;
else
{
FIXME( "algorithm %s not supported\n", debugstr_w(id) );
return STATUS_NOT_IMPLEMENTED;
}
if (implementation && strcmpW( implementation, MS_PRIMITIVE_PROVIDER ))
{
FIXME( "implementation %s not supported\n", debugstr_w(implementation) );
return STATUS_NOT_IMPLEMENTED;
}
if (!(alg = heap_alloc( sizeof(*alg) ))) return STATUS_NO_MEMORY;
alg->hdr.magic = MAGIC_ALG;
alg->id = alg_id;
alg->mode = MODE_ID_CBC;
alg->hmac = flags & BCRYPT_ALG_HANDLE_HMAC_FLAG;
*handle = alg;
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptCloseAlgorithmProvider( BCRYPT_ALG_HANDLE handle, DWORD flags )
{
struct algorithm *alg = handle;
TRACE( "%p, %08x\n", handle, flags );
if (!alg || alg->hdr.magic != MAGIC_ALG) return STATUS_INVALID_HANDLE;
heap_free( alg );
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptGetFipsAlgorithmMode(BOOLEAN *enabled)
{
FIXME("%p - semi-stub\n", enabled);
if (!enabled)
return STATUS_INVALID_PARAMETER;
*enabled = FALSE;
return STATUS_SUCCESS;
}
struct hash_impl
{
union
{
MD2_CTX md2;
MD4_CTX md4;
MD5_CTX md5;
SHA_CTX sha1;
SHA256_CTX sha256;
SHA512_CTX sha512;
} u;
};
static NTSTATUS hash_init( struct hash_impl *hash, enum alg_id alg_id )
{
switch (alg_id)
{
case ALG_ID_MD2:
md2_init( &hash->u.md2 );
break;
case ALG_ID_MD4:
MD4Init( &hash->u.md4 );
break;
case ALG_ID_MD5:
MD5Init( &hash->u.md5 );
break;
case ALG_ID_SHA1:
A_SHAInit( &hash->u.sha1 );
break;
case ALG_ID_SHA256:
sha256_init( &hash->u.sha256 );
break;
case ALG_ID_SHA384:
sha384_init( &hash->u.sha512 );
break;
case ALG_ID_SHA512:
sha512_init( &hash->u.sha512 );
break;
default:
ERR( "unhandled id %u\n", alg_id );
return STATUS_NOT_IMPLEMENTED;
}
return STATUS_SUCCESS;
}
static NTSTATUS hash_update( struct hash_impl *hash, enum alg_id alg_id,
UCHAR *input, ULONG size )
{
switch (alg_id)
{
case ALG_ID_MD2:
md2_update( &hash->u.md2, input, size );
break;
case ALG_ID_MD4:
MD4Update( &hash->u.md4, input, size );
break;
case ALG_ID_MD5:
MD5Update( &hash->u.md5, input, size );
break;
case ALG_ID_SHA1:
A_SHAUpdate( &hash->u.sha1, input, size );
break;
case ALG_ID_SHA256:
sha256_update( &hash->u.sha256, input, size );
break;
case ALG_ID_SHA384:
sha384_update( &hash->u.sha512, input, size );
break;
case ALG_ID_SHA512:
sha512_update( &hash->u.sha512, input, size );
break;
default:
ERR( "unhandled id %u\n", alg_id );
return STATUS_NOT_IMPLEMENTED;
}
return STATUS_SUCCESS;
}
static NTSTATUS hash_finish( struct hash_impl *hash, enum alg_id alg_id,
UCHAR *output, ULONG size )
{
switch (alg_id)
{
case ALG_ID_MD2:
md2_finalize( &hash->u.md2, output );
break;
case ALG_ID_MD4:
MD4Final( &hash->u.md4 );
memcpy( output, hash->u.md4.digest, 16 );
break;
case ALG_ID_MD5:
MD5Final( &hash->u.md5 );
memcpy( output, hash->u.md5.digest, 16 );
break;
case ALG_ID_SHA1:
A_SHAFinal( &hash->u.sha1, (ULONG *)output );
break;
case ALG_ID_SHA256:
sha256_finalize( &hash->u.sha256, output );
break;
case ALG_ID_SHA384:
sha384_finalize( &hash->u.sha512, output );
break;
case ALG_ID_SHA512:
sha512_finalize( &hash->u.sha512, output );
break;
default:
ERR( "unhandled id %u\n", alg_id );
return STATUS_NOT_IMPLEMENTED;
}
return STATUS_SUCCESS;
}
struct hash
{
struct object hdr;
enum alg_id alg_id;
BOOL hmac;
struct hash_impl outer;
struct hash_impl inner;
};
#define BLOCK_LENGTH_AES 16
static NTSTATUS generic_alg_property( enum alg_id id, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size )
{
if (!strcmpW( prop, BCRYPT_OBJECT_LENGTH ))
{
if (!alg_props[id].object_length)
return STATUS_NOT_SUPPORTED;
*ret_size = sizeof(ULONG);
if (size < sizeof(ULONG))
return STATUS_BUFFER_TOO_SMALL;
if (buf)
*(ULONG *)buf = alg_props[id].object_length;
return STATUS_SUCCESS;
}
if (!strcmpW( prop, BCRYPT_HASH_LENGTH ))
{
if (!alg_props[id].hash_length)
return STATUS_NOT_SUPPORTED;
*ret_size = sizeof(ULONG);
if (size < sizeof(ULONG))
return STATUS_BUFFER_TOO_SMALL;
if(buf)
*(ULONG*)buf = alg_props[id].hash_length;
return STATUS_SUCCESS;
}
if (!strcmpW( prop, BCRYPT_ALGORITHM_NAME ))
{
*ret_size = (strlenW(alg_props[id].alg_name)+1)*sizeof(WCHAR);
if (size < *ret_size)
return STATUS_BUFFER_TOO_SMALL;
if(buf)
memcpy(buf, alg_props[id].alg_name, *ret_size);
return STATUS_SUCCESS;
}
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS get_alg_property( const struct algorithm *alg, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size )
{
NTSTATUS status;
status = generic_alg_property( alg->id, prop, buf, size, ret_size );
if (status != STATUS_NOT_IMPLEMENTED)
return status;
switch (alg->id)
{
case ALG_ID_AES:
if (!strcmpW( prop, BCRYPT_BLOCK_LENGTH ))
{
*ret_size = sizeof(ULONG);
if (size < sizeof(ULONG))
return STATUS_BUFFER_TOO_SMALL;
if (buf)
*(ULONG *)buf = BLOCK_LENGTH_AES;
return STATUS_SUCCESS;
}
if (!strcmpW( prop, BCRYPT_CHAINING_MODE ))
{
const WCHAR *mode;
switch (alg->mode)
{
case MODE_ID_GCM: mode = BCRYPT_CHAIN_MODE_GCM; break;
case MODE_ID_CBC: mode = BCRYPT_CHAIN_MODE_CBC; break;
default: return STATUS_NOT_IMPLEMENTED;
}
*ret_size = 64;
if (size < *ret_size) return STATUS_BUFFER_TOO_SMALL;
memcpy( buf, mode, (strlenW(mode) + 1) * sizeof(WCHAR) );
return STATUS_SUCCESS;
}
if (!strcmpW( prop, BCRYPT_KEY_LENGTHS ))
{
BCRYPT_KEY_LENGTHS_STRUCT *key_lengths = (void *)buf;
*ret_size = sizeof(*key_lengths);
if (key_lengths && size < *ret_size) return STATUS_BUFFER_TOO_SMALL;
if (key_lengths)
{
key_lengths->dwMinLength = 128;
key_lengths->dwMaxLength = 256;
key_lengths->dwIncrement = 64;
}
return STATUS_SUCCESS;
}
if (!strcmpW( prop, BCRYPT_AUTH_TAG_LENGTH ))
{
BCRYPT_AUTH_TAG_LENGTHS_STRUCT *tag_length = (void *)buf;
if (alg->mode != MODE_ID_GCM) return STATUS_NOT_SUPPORTED;
*ret_size = sizeof(*tag_length);
if (tag_length && size < *ret_size) return STATUS_BUFFER_TOO_SMALL;
if (tag_length)
{
tag_length->dwMinLength = 12;
tag_length->dwMaxLength = 16;
tag_length->dwIncrement = 1;
}
return STATUS_SUCCESS;
}
break;
default:
break;
}
FIXME( "unsupported property %s\n", debugstr_w(prop) );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS set_alg_property( struct algorithm *alg, const WCHAR *prop, UCHAR *value, ULONG size, ULONG flags )
{
switch (alg->id)
{
case ALG_ID_AES:
if (!strcmpW( prop, BCRYPT_CHAINING_MODE ))
{
if (!strncmpW( (WCHAR *)value, BCRYPT_CHAIN_MODE_CBC, size ))
{
alg->mode = MODE_ID_CBC;
return STATUS_SUCCESS;
}
else if (!strncmpW( (WCHAR *)value, BCRYPT_CHAIN_MODE_GCM, size ))
{
alg->mode = MODE_ID_GCM;
return STATUS_SUCCESS;
}
else
{
FIXME( "unsupported mode %s\n", debugstr_wn( (WCHAR *)value, size ) );
return STATUS_NOT_IMPLEMENTED;
}
}
FIXME( "unsupported aes algorithm property %s\n", debugstr_w(prop) );
return STATUS_NOT_IMPLEMENTED;
default:
FIXME( "unsupported algorithm %u\n", alg->id );
return STATUS_NOT_IMPLEMENTED;
}
}
static NTSTATUS get_hash_property( const struct hash *hash, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size )
{
NTSTATUS status;
status = generic_alg_property( hash->alg_id, prop, buf, size, ret_size );
if (status == STATUS_NOT_IMPLEMENTED)
FIXME( "unsupported property %s\n", debugstr_w(prop) );
return status;
}
NTSTATUS WINAPI BCryptGetProperty( BCRYPT_HANDLE handle, LPCWSTR prop, UCHAR *buffer, ULONG count, ULONG *res, ULONG flags )
{
struct object *object = handle;
TRACE( "%p, %s, %p, %u, %p, %08x\n", handle, wine_dbgstr_w(prop), buffer, count, res, flags );
if (!object) return STATUS_INVALID_HANDLE;
if (!prop || !res) return STATUS_INVALID_PARAMETER;
switch (object->magic)
{
case MAGIC_ALG:
{
const struct algorithm *alg = (const struct algorithm *)object;
return get_alg_property( alg, prop, buffer, count, res );
}
case MAGIC_HASH:
{
const struct hash *hash = (const struct hash *)object;
return get_hash_property( hash, prop, buffer, count, res );
}
default:
WARN( "unknown magic %08x\n", object->magic );
return STATUS_INVALID_HANDLE;
}
}
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)
{
FIXME( "unimplemented flags %08x\n", flags );
return STATUS_NOT_IMPLEMENTED;
}
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;
hash->hdr.magic = MAGIC_HASH;
hash->alg_id = alg->id;
hash->hmac = alg->hmac;
/* 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)
{
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;
}
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 );
end:
if (status != STATUS_SUCCESS)
{
heap_free( hash );
return status;
}
*handle = hash;
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptDuplicateHash( BCRYPT_HASH_HANDLE handle, BCRYPT_HASH_HANDLE *handle_copy,
UCHAR *object, ULONG objectlen, ULONG flags )
{
struct hash *hash_orig = handle;
struct hash *hash_copy;
TRACE( "%p, %p, %p, %u, %u\n", handle, handle_copy, object, objectlen, flags );
if (!hash_orig || hash_orig->hdr.magic != MAGIC_HASH) return STATUS_INVALID_HANDLE;
if (!handle_copy) return STATUS_INVALID_PARAMETER;
if (object) FIXME( "ignoring object buffer\n" );
if (!(hash_copy = heap_alloc( sizeof(*hash_copy) )))
return STATUS_NO_MEMORY;
memcpy( hash_copy, hash_orig, sizeof(*hash_orig) );
*handle_copy = hash_copy;
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptDestroyHash( BCRYPT_HASH_HANDLE handle )
{
struct hash *hash = handle;
TRACE( "%p\n", handle );
if (!hash || hash->hdr.magic != MAGIC_HASH) return STATUS_INVALID_HANDLE;
heap_free( hash );
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptHashData( BCRYPT_HASH_HANDLE handle, UCHAR *input, ULONG size, ULONG flags )
{
struct hash *hash = handle;
TRACE( "%p, %p, %u, %08x\n", handle, input, size, flags );
if (!hash || hash->hdr.magic != MAGIC_HASH) return STATUS_INVALID_HANDLE;
if (!input) return STATUS_SUCCESS;
return hash_update( &hash->inner, hash->alg_id, input, size );
}
NTSTATUS WINAPI BCryptFinishHash( BCRYPT_HASH_HANDLE handle, UCHAR *output, ULONG size, ULONG flags )
{
UCHAR buffer[MAX_HASH_OUTPUT_BYTES];
struct hash *hash = handle;
NTSTATUS status;
int hash_length;
TRACE( "%p, %p, %u, %08x\n", handle, output, size, flags );
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 );
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 );
}
NTSTATUS WINAPI BCryptHash( BCRYPT_ALG_HANDLE algorithm, UCHAR *secret, ULONG secretlen,
UCHAR *input, ULONG inputlen, UCHAR *output, ULONG outputlen )
{
NTSTATUS status;
BCRYPT_HASH_HANDLE handle;
TRACE( "%p, %p, %u, %p, %u, %p, %u\n", algorithm, secret, secretlen,
input, inputlen, output, outputlen );
status = BCryptCreateHash( algorithm, &handle, NULL, 0, secret, secretlen, 0);
if (status != STATUS_SUCCESS)
{
return status;
}
status = BCryptHashData( handle, input, inputlen, 0 );
if (status != STATUS_SUCCESS)
{
BCryptDestroyHash( handle );
return status;
}
status = BCryptFinishHash( handle, output, outputlen, 0 );
if (status != STATUS_SUCCESS)
{
BCryptDestroyHash( handle );
return status;
}
return BCryptDestroyHash( handle );
}
#if defined(HAVE_GNUTLS_CIPHER_INIT) && !defined(HAVE_COMMONCRYPTO_COMMONCRYPTOR_H)
struct key
{
struct object hdr;
enum alg_id alg_id;
enum mode_id mode;
ULONG block_size;
gnutls_cipher_hd_t handle;
UCHAR *secret;
ULONG secret_len;
};
#elif defined(HAVE_COMMONCRYPTO_COMMONCRYPTOR_H) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
struct key
{
struct object hdr;
enum alg_id alg_id;
enum mode_id mode;
ULONG block_size;
CCCryptorRef ref_encrypt;
CCCryptorRef ref_decrypt;
UCHAR *secret;
ULONG secret_len;
};
#else
struct key
{
struct object hdr;
enum mode_id mode;
ULONG block_size;
};
#endif
#if defined(HAVE_GNUTLS_CIPHER_INIT) || defined(HAVE_COMMONCRYPTO_COMMONCRYPTOR_H) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
static ULONG get_block_size( struct algorithm *alg )
{
ULONG ret = 0, size = sizeof(ret);
get_alg_property( alg, BCRYPT_BLOCK_LENGTH, (UCHAR *)&ret, sizeof(ret), &size );
return ret;
}
static NTSTATUS key_export( struct key *key, const WCHAR *type, UCHAR *output, ULONG output_len, ULONG *size )
{
if (!strcmpW( type, BCRYPT_KEY_DATA_BLOB ))
{
BCRYPT_KEY_DATA_BLOB_HEADER *header = (BCRYPT_KEY_DATA_BLOB_HEADER *)output;
ULONG req_size = sizeof(BCRYPT_KEY_DATA_BLOB_HEADER) + key->secret_len;
*size = req_size;
if (output_len < req_size) return STATUS_BUFFER_TOO_SMALL;
header->dwMagic = BCRYPT_KEY_DATA_BLOB_MAGIC;
header->dwVersion = BCRYPT_KEY_DATA_BLOB_VERSION1;
header->cbKeyData = key->secret_len;
memcpy( &header[1], key->secret, key->secret_len );
return STATUS_SUCCESS;
}
FIXME( "unsupported key type %s\n", debugstr_w(type) );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_duplicate( struct key *key_orig, struct key *key_copy )
{
UCHAR *buffer;
if (!(buffer = heap_alloc( key_orig->secret_len ))) return STATUS_NO_MEMORY;
memcpy( buffer, key_orig->secret, key_orig->secret_len );
memset( key_copy, 0, sizeof(*key_copy) );
key_copy->hdr = key_orig->hdr;
key_copy->alg_id = key_orig->alg_id;
key_copy->mode = key_orig->mode;
key_copy->block_size = key_orig->block_size;
key_copy->secret = buffer;
key_copy->secret_len = key_orig->secret_len;
return STATUS_SUCCESS;
}
#endif
#if defined(HAVE_GNUTLS_CIPHER_INIT) && !defined(HAVE_COMMONCRYPTO_COMMONCRYPTOR_H)
static NTSTATUS key_init( struct key *key, struct algorithm *alg, const UCHAR *secret, ULONG secret_len )
{
UCHAR *buffer;
if (!libgnutls_handle) return STATUS_INTERNAL_ERROR;
switch (alg->id)
{
case ALG_ID_AES:
break;
default:
FIXME( "algorithm %u not supported\n", alg->id );
return STATUS_NOT_SUPPORTED;
}
if (!(key->block_size = get_block_size( alg ))) return STATUS_INVALID_PARAMETER;
if (!(buffer = heap_alloc( secret_len ))) return STATUS_NO_MEMORY;
memcpy( buffer, secret, secret_len );
key->alg_id = alg->id;
key->mode = alg->mode;
key->handle = 0; /* initialized on first use */
key->secret = buffer;
key->secret_len = secret_len;
return STATUS_SUCCESS;
}
static NTSTATUS set_key_property( struct key *key, const WCHAR *prop, UCHAR *value, ULONG size, ULONG flags )
{
if (!strcmpW( prop, BCRYPT_CHAINING_MODE ))
{
if (!strncmpW( (WCHAR *)value, BCRYPT_CHAIN_MODE_CBC, size ))
{
key->mode = MODE_ID_CBC;
return STATUS_SUCCESS;
}
else if (!strncmpW( (WCHAR *)value, BCRYPT_CHAIN_MODE_GCM, size ))
{
key->mode = MODE_ID_GCM;
return STATUS_SUCCESS;
}
else
{
FIXME( "unsupported mode %s\n", debugstr_wn( (WCHAR *)value, size ) );
return STATUS_NOT_IMPLEMENTED;
}
}
FIXME( "unsupported key property %s\n", debugstr_w(prop) );
return STATUS_NOT_IMPLEMENTED;
}
static gnutls_cipher_algorithm_t get_gnutls_cipher( const struct key *key )
{
switch (key->alg_id)
{
case ALG_ID_AES:
WARN( "handle block size\n" );
switch (key->mode)
{
case MODE_ID_GCM: return GNUTLS_CIPHER_AES_128_GCM;
case MODE_ID_CBC:
default: 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_set_auth_data( struct key *key, UCHAR *auth_data, ULONG len )
{
int ret;
if ((ret = pgnutls_cipher_add_auth( key->handle, auth_data, len )))
{
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_decrypt( struct key *key, const UCHAR *input, ULONG input_len, UCHAR *output,
ULONG output_len )
{
int ret;
if ((ret = pgnutls_cipher_decrypt2( key->handle, input, input_len, output, output_len )))
{
pgnutls_perror( ret );
return STATUS_INTERNAL_ERROR;
}
return STATUS_SUCCESS;
}
static NTSTATUS key_get_tag( struct key *key, UCHAR *tag, ULONG len )
{
int ret;
if ((ret = pgnutls_cipher_tag( key->handle, tag, 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 );
heap_free( key->secret );
heap_free( key );
return STATUS_SUCCESS;
}
#elif defined(HAVE_COMMONCRYPTO_COMMONCRYPTOR_H) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
static NTSTATUS key_init( struct key *key, struct algorithm *alg, const UCHAR *secret, ULONG secret_len )
{
UCHAR *buffer;
switch (alg->id)
{
case ALG_ID_AES:
switch (alg->mode)
{
case MODE_ID_CBC:
break;
default:
FIXME( "mode %u not supported\n", alg->mode );
return STATUS_NOT_SUPPORTED;
}
break;
default:
FIXME( "algorithm %u not supported\n", alg->id );
return STATUS_NOT_SUPPORTED;
}
if (!(key->block_size = get_block_size( alg ))) return STATUS_INVALID_PARAMETER;
if (!(buffer = heap_alloc( secret_len ))) return STATUS_NO_MEMORY;
memcpy( buffer, secret, secret_len );
key->alg_id = alg->id;
key->mode = alg->mode;
key->ref_encrypt = NULL; /* initialized on first use */
key->ref_decrypt = NULL;
key->secret = buffer;
key->secret_len = secret_len;
return STATUS_SUCCESS;
}
static NTSTATUS set_key_property( struct key *key, const WCHAR *prop, UCHAR *value, ULONG size, ULONG flags )
{
FIXME( "not implemented on Mac\n" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_set_params( struct key *key, UCHAR *iv, ULONG iv_len )
{
CCCryptorStatus status;
if (key->ref_encrypt)
{
CCCryptorRelease( key->ref_encrypt );
key->ref_encrypt = NULL;
}
if (key->ref_decrypt)
{
CCCryptorRelease( key->ref_decrypt );
key->ref_decrypt = NULL;
}
if ((status = CCCryptorCreateWithMode( kCCEncrypt, kCCModeCBC, kCCAlgorithmAES128, ccNoPadding, iv,
key->secret, key->secret_len, NULL, 0, 0, 0, &key->ref_encrypt )) != kCCSuccess)
{
WARN( "CCCryptorCreateWithMode failed %d\n", status );
return STATUS_INTERNAL_ERROR;
}
if ((status = CCCryptorCreateWithMode( kCCDecrypt, kCCModeCBC, kCCAlgorithmAES128, ccNoPadding, iv,
key->secret, key->secret_len, NULL, 0, 0, 0, &key->ref_decrypt )) != kCCSuccess)
{
WARN( "CCCryptorCreateWithMode failed %d\n", status );
CCCryptorRelease( key->ref_encrypt );
key->ref_encrypt = NULL;
return STATUS_INTERNAL_ERROR;
}
return STATUS_SUCCESS;
}
static NTSTATUS key_set_auth_data( struct key *key, UCHAR *auth_data, ULONG len )
{
FIXME( "not implemented on Mac\n" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_encrypt( struct key *key, const UCHAR *input, ULONG input_len, UCHAR *output,
ULONG output_len )
{
CCCryptorStatus status;
if ((status = CCCryptorUpdate( key->ref_encrypt, input, input_len, output, output_len, NULL )) != kCCSuccess)
{
WARN( "CCCryptorUpdate failed %d\n", status );
return STATUS_INTERNAL_ERROR;
}
return STATUS_SUCCESS;
}
static NTSTATUS key_decrypt( struct key *key, const UCHAR *input, ULONG input_len, UCHAR *output,
ULONG output_len )
{
CCCryptorStatus status;
if ((status = CCCryptorUpdate( key->ref_decrypt, input, input_len, output, output_len, NULL )) != kCCSuccess)
{
WARN( "CCCryptorUpdate failed %d\n", status );
return STATUS_INTERNAL_ERROR;
}
return STATUS_SUCCESS;
}
static NTSTATUS key_get_tag( struct key *key, UCHAR *tag, ULONG len )
{
FIXME( "not implemented on Mac\n" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_destroy( struct key *key )
{
if (key->ref_encrypt) CCCryptorRelease( key->ref_encrypt );
if (key->ref_decrypt) CCCryptorRelease( key->ref_decrypt );
heap_free( key->secret );
heap_free( key );
return STATUS_SUCCESS;
}
#else
static NTSTATUS key_init( struct key *key, struct algorithm *alg, const UCHAR *secret, ULONG secret_len )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS set_key_property( struct key *key, const WCHAR *prop, UCHAR *value, ULONG size, ULONG flags )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_duplicate( struct key *key_orig, struct key *key_copy )
{
ERR( "support for keys not available at build time\n" );
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_set_auth_data( struct key *key, UCHAR *auth_data, ULONG 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_decrypt( 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_get_tag( struct key *key, UCHAR *tag, ULONG 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" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_export( struct key *key, const WCHAR *type, UCHAR *output, ULONG output_len, ULONG *size )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
#endif
NTSTATUS WINAPI BCryptGenerateSymmetricKey( BCRYPT_ALG_HANDLE algorithm, BCRYPT_KEY_HANDLE *handle,
UCHAR *object, ULONG object_len, UCHAR *secret, ULONG secret_len,
ULONG flags )
{
struct algorithm *alg = algorithm;
struct key *key;
NTSTATUS status;
TRACE( "%p, %p, %p, %u, %p, %u, %08x\n", algorithm, handle, object, object_len, secret, secret_len, flags );
if (!alg || alg->hdr.magic != MAGIC_ALG) return STATUS_INVALID_HANDLE;
if (object) FIXME( "ignoring object buffer\n" );
if (!(key = heap_alloc( sizeof(*key) ))) return STATUS_NO_MEMORY;
key->hdr.magic = MAGIC_KEY;
if ((status = key_init( key, alg, secret, secret_len )))
{
heap_free( key );
return status;
}
*handle = key;
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptImportKey(BCRYPT_ALG_HANDLE algorithm, BCRYPT_KEY_HANDLE decrypt_key, LPCWSTR type,
BCRYPT_KEY_HANDLE *key, PUCHAR object, ULONG object_len, PUCHAR input,
ULONG input_len, ULONG flags)
{
struct algorithm *alg = algorithm;
TRACE("%p, %p, %s, %p, %p, %u, %p, %u, %u\n", algorithm, decrypt_key, debugstr_w(type), key, object,
object_len, input, input_len, flags);
if (!alg || alg->hdr.magic != MAGIC_ALG) return STATUS_INVALID_HANDLE;
if (!key || !type || !input) return STATUS_INVALID_PARAMETER;
if (decrypt_key)
{
FIXME("Decrypting of key not yet supported\n");
return STATUS_NO_MEMORY;
}
if (!strcmpW(type, BCRYPT_KEY_DATA_BLOB))
{
BCRYPT_KEY_DATA_BLOB_HEADER *key_header = (BCRYPT_KEY_DATA_BLOB_HEADER*)input;
if (input_len < sizeof(BCRYPT_KEY_DATA_BLOB_HEADER))
return STATUS_BUFFER_TOO_SMALL;
if (key_header->dwMagic != BCRYPT_KEY_DATA_BLOB_MAGIC)
return STATUS_INVALID_PARAMETER;
if (key_header->dwVersion != BCRYPT_KEY_DATA_BLOB_VERSION1)
{
FIXME("Unknown key data blob version: %d\n", key_header->dwVersion);
return STATUS_INVALID_PARAMETER;
}
if (key_header->cbKeyData + sizeof(BCRYPT_KEY_DATA_BLOB_HEADER) > input_len)
return STATUS_INVALID_PARAMETER;
return BCryptGenerateSymmetricKey(algorithm, key, object, object_len, (UCHAR*)&key_header[1], key_header->cbKeyData, 0);
}
FIXME("Unsupported key type: %s\n", debugstr_w(type));
return STATUS_INVALID_PARAMETER;
}
NTSTATUS WINAPI BCryptExportKey(BCRYPT_KEY_HANDLE export_key, BCRYPT_KEY_HANDLE encrypt_key, LPCWSTR type,
PUCHAR output, ULONG output_len, ULONG *size, ULONG flags)
{
struct key *key = export_key;
TRACE("%p, %p, %s, %p, %u, %p, %u\n", key, encrypt_key, debugstr_w(type), output, output_len, size, flags);
if (!key || key->hdr.magic != MAGIC_KEY) return STATUS_INVALID_HANDLE;
if (!output || !output_len || !size) return STATUS_INVALID_PARAMETER;
if (encrypt_key)
{
FIXME("Encryption of key not yet supported\n");
return STATUS_NO_MEMORY;
}
return key_export( key, type, output, output_len, size );
}
NTSTATUS WINAPI BCryptDuplicateKey( BCRYPT_KEY_HANDLE handle, BCRYPT_KEY_HANDLE *handle_copy,
UCHAR *object, ULONG object_len, ULONG flags )
{
struct key *key_orig = handle;
struct key *key_copy;
NTSTATUS status;
TRACE( "%p, %p, %p, %u, %08x\n", handle, handle_copy, object, object_len, flags );
if (object) FIXME( "ignoring object buffer\n" );
if (!key_orig || key_orig->hdr.magic != MAGIC_KEY) return STATUS_INVALID_HANDLE;
if (!handle_copy) return STATUS_INVALID_PARAMETER;
if (!(key_copy = heap_alloc( sizeof(*key_copy) ))) return STATUS_NO_MEMORY;
if ((status = key_duplicate( key_orig, key_copy )))
{
heap_free( key_copy );
return status;
}
*handle_copy = key_copy;
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptDestroyKey( BCRYPT_KEY_HANDLE handle )
{
struct key *key = handle;
TRACE( "%p\n", handle );
if (!key || key->hdr.magic != MAGIC_KEY) return STATUS_INVALID_HANDLE;
return key_destroy( key );
}
NTSTATUS WINAPI BCryptEncrypt( BCRYPT_KEY_HANDLE handle, UCHAR *input, ULONG input_len,
void *padding, UCHAR *iv, ULONG iv_len, UCHAR *output,
ULONG output_len, ULONG *ret_len, ULONG flags )
{
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 );
if (!key || key->hdr.magic != MAGIC_KEY) return STATUS_INVALID_HANDLE;
if (flags & ~BCRYPT_BLOCK_PADDING)
{
FIXME( "flags %08x not implemented\n", flags );
return STATUS_NOT_IMPLEMENTED;
}
if (key->mode == MODE_ID_GCM)
{
BCRYPT_AUTHENTICATED_CIPHER_MODE_INFO *auth_info = padding;
if (!auth_info) return STATUS_INVALID_PARAMETER;
if (!auth_info->pbNonce) return STATUS_INVALID_PARAMETER;
if (!auth_info->pbTag) return STATUS_INVALID_PARAMETER;
if (auth_info->cbTag < 12 || auth_info->cbTag > 16) return STATUS_INVALID_PARAMETER;
if (auth_info->dwFlags & BCRYPT_AUTH_MODE_CHAIN_CALLS_FLAG)
FIXME( "call chaining not implemented\n" );
if ((status = key_set_params( key, auth_info->pbNonce, auth_info->cbNonce )))
return status;
*ret_len = input_len;
if (flags & BCRYPT_BLOCK_PADDING) return STATUS_INVALID_PARAMETER;
if (input && !output) return STATUS_SUCCESS;
if (output_len < *ret_len) return STATUS_BUFFER_TOO_SMALL;
if (auth_info->pbAuthData && (status = key_set_auth_data( key, auth_info->pbAuthData, auth_info->cbAuthData )))
return status;
if ((status = key_encrypt( key, input, input_len, output, output_len )))
return status;
return key_get_tag( key, auth_info->pbTag, auth_info->cbTag );
}
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 = heap_alloc( 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 );
heap_free( buf );
}
return status;
}
NTSTATUS WINAPI BCryptDecrypt( BCRYPT_KEY_HANDLE handle, UCHAR *input, ULONG input_len,
void *padding, UCHAR *iv, ULONG iv_len, UCHAR *output,
ULONG output_len, ULONG *ret_len, ULONG flags )
{
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 );
if (!key || key->hdr.magic != MAGIC_KEY) return STATUS_INVALID_HANDLE;
if (flags & ~BCRYPT_BLOCK_PADDING)
{
FIXME( "flags %08x not supported\n", flags );
return STATUS_NOT_IMPLEMENTED;
}
if (key->mode == MODE_ID_GCM)
{
BCRYPT_AUTHENTICATED_CIPHER_MODE_INFO *auth_info = padding;
UCHAR tag[16];
if (!auth_info) return STATUS_INVALID_PARAMETER;
if (!auth_info->pbNonce) return STATUS_INVALID_PARAMETER;
if (!auth_info->pbTag) return STATUS_INVALID_PARAMETER;
if (auth_info->cbTag < 12 || auth_info->cbTag > 16) return STATUS_INVALID_PARAMETER;
if ((status = key_set_params( key, auth_info->pbNonce, auth_info->cbNonce )))
return status;
*ret_len = input_len;
if (flags & BCRYPT_BLOCK_PADDING) return STATUS_INVALID_PARAMETER;
if (!output) return STATUS_SUCCESS;
if (output_len < *ret_len) return STATUS_BUFFER_TOO_SMALL;
if (auth_info->pbAuthData && (status = key_set_auth_data( key, auth_info->pbAuthData, auth_info->cbAuthData )))
return status;
if ((status = key_decrypt( key, input, input_len, output, output_len )))
return status;
if ((status = key_get_tag( key, tag, sizeof(tag) )))
return status;
if (memcmp( tag, auth_info->pbTag, auth_info->cbTag ))
return STATUS_AUTH_TAG_MISMATCH;
return STATUS_SUCCESS;
}
if ((status = key_set_params( key, iv, iv_len ))) return status;
*ret_len = input_len;
if (input_len & (key->block_size - 1)) return STATUS_INVALID_BUFFER_SIZE;
if (!output) return STATUS_SUCCESS;
if (flags & BCRYPT_BLOCK_PADDING)
{
if (output_len + key->block_size < *ret_len) return STATUS_BUFFER_TOO_SMALL;
if (input_len < key->block_size) return STATUS_BUFFER_TOO_SMALL;
bytes_left -= key->block_size;
}
else if (output_len < *ret_len)
return STATUS_BUFFER_TOO_SMALL;
src = input;
dst = output;
while (bytes_left >= key->block_size)
{
if ((status = key_decrypt( 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 = heap_alloc( key->block_size ))) return STATUS_NO_MEMORY;
status = key_decrypt( key, src, key->block_size, buf, key->block_size );
if (!status && buf[ key->block_size - 1 ] <= key->block_size)
{
*ret_len -= buf[ key->block_size - 1 ];
if (output_len < *ret_len) status = STATUS_BUFFER_TOO_SMALL;
else memcpy( dst, buf, key->block_size - buf[ key->block_size - 1 ] );
}
else
status = STATUS_UNSUCCESSFUL; /* FIXME: invalid padding */
heap_free( buf );
}
return status;
}
NTSTATUS WINAPI BCryptSetProperty( BCRYPT_HANDLE handle, const WCHAR *prop, UCHAR *value, ULONG size, ULONG flags )
{
struct object *object = handle;
TRACE( "%p, %s, %p, %u, %08x\n", handle, debugstr_w(prop), value, size, flags );
if (!object) return STATUS_INVALID_HANDLE;
switch (object->magic)
{
case MAGIC_ALG:
{
struct algorithm *alg = (struct algorithm *)object;
return set_alg_property( alg, prop, value, size, flags );
}
case MAGIC_KEY:
{
struct key *key = (struct key *)object;
return set_key_property( key, prop, value, size, flags );
}
default:
WARN( "unknown magic %08x\n", object->magic );
return STATUS_INVALID_HANDLE;
}
}
BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
{
switch (reason)
{
case DLL_PROCESS_ATTACH:
instance = hinst;
DisableThreadLibraryCalls( hinst );
#if defined(HAVE_GNUTLS_CIPHER_INIT) && !defined(HAVE_COMMONCRYPTO_COMMONCRYPTOR_H)
gnutls_initialize();
#endif
break;
case DLL_PROCESS_DETACH:
if (reserved) break;
#if defined(HAVE_GNUTLS_CIPHER_INIT) && !defined(HAVE_COMMONCRYPTO_COMMONCRYPTOR_H)
gnutls_uninitialize();
#endif
break;
}
return TRUE;
}
Reference in New Issue View Git Blame Copy Permalink