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Sweden-Number/dlls/bcrypt/bcrypt_main.c

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/*
* 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>
#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;
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 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;
BOOL symmetric;
}
alg_props[] =
{
/* ALG_ID_AES */ { 654, 0, 0, BCRYPT_AES_ALGORITHM, TRUE },
/* ALG_ID_MD2 */ { 270, 16, 128, BCRYPT_MD2_ALGORITHM, FALSE },
/* ALG_ID_MD4 */ { 270, 16, 512, BCRYPT_MD4_ALGORITHM, FALSE },
/* ALG_ID_MD5 */ { 274, 16, 512, BCRYPT_MD5_ALGORITHM, FALSE },
/* ALG_ID_RNG */ { 0, 0, 0, BCRYPT_RNG_ALGORITHM, FALSE },
/* ALG_ID_RSA */ { 0, 0, 0, BCRYPT_RSA_ALGORITHM, FALSE },
/* ALG_ID_SHA1 */ { 278, 20, 512, BCRYPT_SHA1_ALGORITHM, FALSE },
/* ALG_ID_SHA256 */ { 286, 32, 512, BCRYPT_SHA256_ALGORITHM, FALSE },
/* ALG_ID_SHA384 */ { 382, 48, 1024, BCRYPT_SHA384_ALGORITHM, FALSE },
/* ALG_ID_SHA512 */ { 382, 64, 1024, BCRYPT_SHA512_ALGORITHM, FALSE },
/* ALG_ID_ECDH_P256 */ { 0, 0, 0, BCRYPT_ECDH_P256_ALGORITHM, FALSE },
/* ALG_ID_ECDSA_P256 */ { 0, 0, 0, BCRYPT_ECDSA_P256_ALGORITHM, FALSE },
/* ALG_ID_ECDSA_P384 */ { 0, 0, 0, BCRYPT_ECDSA_P384_ALGORITHM, FALSE },
};
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_RSA_ALGORITHM )) alg_id = ALG_ID_RSA;
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 if (!strcmpW( id, BCRYPT_ECDH_P256_ALGORITHM )) alg_id = ALG_ID_ECDH_P256;
else if (!strcmpW( id, BCRYPT_ECDSA_P256_ALGORITHM )) alg_id = ALG_ID_ECDSA_P256;
else if (!strcmpW( id, BCRYPT_ECDSA_P384_ALGORITHM )) alg_id = ALG_ID_ECDSA_P384;
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;
alg->hdr.magic = 0;
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;
}
#define HASH_FLAG_HMAC 0x01
#define HASH_FLAG_REUSABLE 0x02
struct hash
{
struct object hdr;
enum alg_id alg_id;
ULONG flags;
UCHAR *secret;
ULONG secret_len;
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_aes_property( enum mode_id mode, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size )
{
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 *str;
switch (mode)
{
case MODE_ID_ECB: str = BCRYPT_CHAIN_MODE_ECB; break;
case MODE_ID_CBC: str = BCRYPT_CHAIN_MODE_CBC; break;
case MODE_ID_GCM: str = BCRYPT_CHAIN_MODE_GCM; break;
default: return STATUS_NOT_IMPLEMENTED;
}
*ret_size = 64;
if (size < *ret_size) return STATUS_BUFFER_TOO_SMALL;
memcpy( buf, str, (strlenW(str) + 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 (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;
}
FIXME( "unsupported property %s\n", debugstr_w(prop) );
return STATUS_NOT_IMPLEMENTED;
}
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:
return get_aes_property( alg->mode, prop, buf, size, ret_size );
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_ECB, size ))
{
alg->mode = MODE_ID_ECB;
return STATUS_SUCCESS;
}
else 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;
}
static NTSTATUS get_key_property( const struct key *key, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size )
{
switch (key->alg_id)
{
case ALG_ID_AES:
if (!strcmpW( prop, BCRYPT_AUTH_TAG_LENGTH )) return STATUS_NOT_SUPPORTED;
return get_aes_property( key->u.s.mode, prop, buf, size, ret_size );
default:
FIXME( "unsupported algorithm %u\n", key->alg_id );
return STATUS_NOT_IMPLEMENTED;
}
}
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_KEY:
{
const struct key *key = (const struct key *)object;
return get_key_property( key, 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;
}
}
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;
struct hash *hash;
NTSTATUS status;
TRACE( "%p, %p, %p, %u, %p, %u, %08x - stub\n", algorithm, handle, object, objectlen,
secret, secretlen, flags );
if (flags & ~BCRYPT_HASH_REUSABLE_FLAG)
{
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_zero( sizeof(*hash) ))) return STATUS_NO_MEMORY;
hash->hdr.magic = MAGIC_HASH;
hash->alg_id = alg->id;
if (alg->hmac) hash->flags = HASH_FLAG_HMAC;
if (flags & BCRYPT_HASH_REUSABLE_FLAG) hash->flags |= HASH_FLAG_REUSABLE;
if (secretlen && !(hash->secret = heap_alloc( secretlen )))
{
heap_free( hash );
return STATUS_NO_MEMORY;
}
memcpy( hash->secret, secret, secretlen );
hash->secret_len = secretlen;
if ((status = prepare_hash( hash )) != STATUS_SUCCESS)
{
heap_free( hash->secret );
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) );
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;
}
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_PARAMETER;
hash->hdr.magic = 0;
heap_free( hash->secret );
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->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;
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,
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) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
BOOL key_is_symmetric( struct key *key )
{
return alg_props[key->alg_id].symmetric;
}
static NTSTATUS key_import( BCRYPT_ALG_HANDLE algorithm, const WCHAR *type, BCRYPT_KEY_HANDLE *key, UCHAR *object,
ULONG object_len, UCHAR *input, ULONG input_len )
{
ULONG len;
if (!strcmpW( type, BCRYPT_KEY_DATA_BLOB ))
{
BCRYPT_KEY_DATA_BLOB_HEADER *header = (BCRYPT_KEY_DATA_BLOB_HEADER *)input;
if (input_len < sizeof(BCRYPT_KEY_DATA_BLOB_HEADER)) return STATUS_BUFFER_TOO_SMALL;
if (header->dwMagic != BCRYPT_KEY_DATA_BLOB_MAGIC) return STATUS_INVALID_PARAMETER;
if (header->dwVersion != BCRYPT_KEY_DATA_BLOB_VERSION1)
{
FIXME( "unknown key data blob version %u\n", header->dwVersion );
return STATUS_INVALID_PARAMETER;
}
len = header->cbKeyData;
if (len + sizeof(BCRYPT_KEY_DATA_BLOB_HEADER) > input_len) return STATUS_INVALID_PARAMETER;
return BCryptGenerateSymmetricKey( algorithm, key, object, object_len, (UCHAR *)&header[1], len, 0 );
}
else if (!strcmpW( type, BCRYPT_OPAQUE_KEY_BLOB ))
{
if (input_len < sizeof(len)) return STATUS_BUFFER_TOO_SMALL;
len = *(ULONG *)input;
if (len + sizeof(len) > input_len) return STATUS_INVALID_PARAMETER;
return BCryptGenerateSymmetricKey( algorithm, key, object, object_len, input + sizeof(len), len, 0 );
}
FIXME( "unsupported key type %s\n", debugstr_w(type) );
return STATUS_NOT_IMPLEMENTED;
}
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->u.s.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->u.s.secret_len;
memcpy( &header[1], key->u.s.secret, key->u.s.secret_len );
return STATUS_SUCCESS;
}
else if (!strcmpW( type, BCRYPT_OPAQUE_KEY_BLOB ))
{
ULONG len, req_size = sizeof(len) + key->u.s.secret_len;
*size = req_size;
if (output_len < req_size) return STATUS_BUFFER_TOO_SMALL;
*(ULONG *)output = key->u.s.secret_len;
memcpy( output + sizeof(len), key->u.s.secret, key->u.s.secret_len );
return STATUS_SUCCESS;
}
else if (!strcmpW( type, BCRYPT_ECCPUBLIC_BLOB ))
{
*size = key->u.a.pubkey_len;
if (output_len < key->u.a.pubkey_len) return STATUS_SUCCESS;
memcpy( output, key->u.a.pubkey, key->u.a.pubkey_len );
return STATUS_SUCCESS;
}
else if (!strcmpW( type, BCRYPT_ECCPRIVATE_BLOB ))
{
return key_export_ecc( key, output, output_len, size );
}
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;
memset( key_copy, 0, sizeof(*key_copy) );
key_copy->hdr = key_orig->hdr;
key_copy->alg_id = key_orig->alg_id;
if (key_is_symmetric( key_orig ))
{
if (!(buffer = heap_alloc( key_orig->u.s.secret_len ))) return STATUS_NO_MEMORY;
memcpy( buffer, key_orig->u.s.secret, key_orig->u.s.secret_len );
key_copy->u.s.mode = key_orig->u.s.mode;
key_copy->u.s.block_size = key_orig->u.s.block_size;
key_copy->u.s.secret = buffer;
key_copy->u.s.secret_len = key_orig->u.s.secret_len;
}
else
{
if (!(buffer = heap_alloc( key_orig->u.a.pubkey_len ))) return STATUS_NO_MEMORY;
memcpy( buffer, key_orig->u.a.pubkey, key_orig->u.a.pubkey_len );
key_copy->u.a.pubkey = buffer;
key_copy->u.a.pubkey_len = key_orig->u.a.pubkey_len;
}
return STATUS_SUCCESS;
}
static NTSTATUS key_encrypt( struct key *key, UCHAR *input, ULONG input_len, void *padding, UCHAR *iv,
ULONG iv_len, UCHAR *output, ULONG output_len, ULONG *ret_len, ULONG flags )
{
ULONG bytes_left = input_len;
UCHAR *buf, *src, *dst;
NTSTATUS status;
if (key->u.s.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_symmetric_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 ((status = key_symmetric_set_auth_data( key, auth_info->pbAuthData, auth_info->cbAuthData )))
return status;
if ((status = key_symmetric_encrypt( key, input, input_len, output, output_len ))) return status;
return key_symmetric_get_tag( key, auth_info->pbTag, auth_info->cbTag );
}
if ((status = key_symmetric_set_params( key, iv, iv_len ))) return status;
*ret_len = input_len;
if (flags & BCRYPT_BLOCK_PADDING)
*ret_len = (input_len + key->u.s.block_size) & ~(key->u.s.block_size - 1);
else if (input_len & (key->u.s.block_size - 1))
return STATUS_INVALID_BUFFER_SIZE;
if (!output) return STATUS_SUCCESS;
if (output_len < *ret_len) return STATUS_BUFFER_TOO_SMALL;
if (key->u.s.mode == MODE_ID_ECB && iv) return STATUS_INVALID_PARAMETER;
src = input;
dst = output;
while (bytes_left >= key->u.s.block_size)
{
if ((status = key_symmetric_encrypt( key, src, key->u.s.block_size, dst, key->u.s.block_size )))
return status;
if (key->u.s.mode == MODE_ID_ECB && (status = key_symmetric_set_params( key, NULL, 0 ))) return status;
bytes_left -= key->u.s.block_size;
src += key->u.s.block_size;
dst += key->u.s.block_size;
}
if (flags & BCRYPT_BLOCK_PADDING)
{
if (!(buf = heap_alloc( key->u.s.block_size ))) return STATUS_NO_MEMORY;
memcpy( buf, src, bytes_left );
memset( buf + bytes_left, key->u.s.block_size - bytes_left, key->u.s.block_size - bytes_left );
status = key_symmetric_encrypt( key, buf, key->u.s.block_size, dst, key->u.s.block_size );
heap_free( buf );
}
return status;
}
static NTSTATUS key_decrypt( struct key *key, UCHAR *input, ULONG input_len, void *padding, UCHAR *iv,
ULONG iv_len, UCHAR *output, ULONG output_len, ULONG *ret_len, ULONG flags )
{
ULONG bytes_left = input_len;
UCHAR *buf, *src, *dst;
NTSTATUS status;
if (key->u.s.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_symmetric_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 ((status = key_symmetric_set_auth_data( key, auth_info->pbAuthData, auth_info->cbAuthData )))
return status;
if ((status = key_symmetric_decrypt( key, input, input_len, output, output_len ))) return status;
if ((status = key_symmetric_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_symmetric_set_params( key, iv, iv_len ))) return status;
*ret_len = input_len;
if (input_len & (key->u.s.block_size - 1)) return STATUS_INVALID_BUFFER_SIZE;
if (!output) return STATUS_SUCCESS;
if (flags & BCRYPT_BLOCK_PADDING)
{
if (output_len + key->u.s.block_size < *ret_len) return STATUS_BUFFER_TOO_SMALL;
if (input_len < key->u.s.block_size) return STATUS_BUFFER_TOO_SMALL;
bytes_left -= key->u.s.block_size;
}
else if (output_len < *ret_len) return STATUS_BUFFER_TOO_SMALL;
if (key->u.s.mode == MODE_ID_ECB && iv) return STATUS_INVALID_PARAMETER;
src = input;
dst = output;
while (bytes_left >= key->u.s.block_size)
{
if ((status = key_symmetric_decrypt( key, src, key->u.s.block_size, dst, key->u.s.block_size )))
return status;
if (key->u.s.mode == MODE_ID_ECB && (status = key_symmetric_set_params( key, NULL, 0 ))) return status;
bytes_left -= key->u.s.block_size;
src += key->u.s.block_size;
dst += key->u.s.block_size;
}
if (flags & BCRYPT_BLOCK_PADDING)
{
if (!(buf = heap_alloc( key->u.s.block_size ))) return STATUS_NO_MEMORY;
status = key_symmetric_decrypt( key, src, key->u.s.block_size, buf, key->u.s.block_size );
if (!status && buf[ key->u.s.block_size - 1 ] <= key->u.s.block_size)
{
*ret_len -= buf[ key->u.s.block_size - 1 ];
if (output_len < *ret_len) status = STATUS_BUFFER_TOO_SMALL;
else memcpy( dst, buf, key->u.s.block_size - buf[ key->u.s.block_size - 1 ] );
}
else status = STATUS_UNSUCCESSFUL; /* FIXME: invalid padding */
heap_free( buf );
}
return status;
}
static NTSTATUS key_import_pair( struct algorithm *alg, const WCHAR *type, BCRYPT_KEY_HANDLE *ret_key, UCHAR *input,
ULONG input_len )
{
struct key *key;
NTSTATUS status;
if (!strcmpW( type, BCRYPT_ECCPUBLIC_BLOB ))
{
BCRYPT_ECCKEY_BLOB *ecc_blob = (BCRYPT_ECCKEY_BLOB *)input;
DWORD key_size, magic;
if (input_len < sizeof(*ecc_blob)) return STATUS_INVALID_PARAMETER;
switch (alg->id)
{
case ALG_ID_ECDH_P256:
key_size = 32;
magic = BCRYPT_ECDH_PUBLIC_P256_MAGIC;
break;
case ALG_ID_ECDSA_P256:
key_size = 32;
magic = BCRYPT_ECDSA_PUBLIC_P256_MAGIC;
break;
case ALG_ID_ECDSA_P384:
key_size = 48;
magic = BCRYPT_ECDSA_PUBLIC_P384_MAGIC;
break;
default:
FIXME( "algorithm %u does not yet support importing blob of type %s\n", alg->id, debugstr_w(type) );
return STATUS_NOT_SUPPORTED;
}
if (ecc_blob->dwMagic != magic) return STATUS_NOT_SUPPORTED;
if (ecc_blob->cbKey != key_size || input_len < sizeof(*ecc_blob) + ecc_blob->cbKey * 2)
return STATUS_INVALID_PARAMETER;
if (!(key = heap_alloc_zero( sizeof(*key) ))) return STATUS_NO_MEMORY;
key->hdr.magic = MAGIC_KEY;
if ((status = key_asymmetric_init( key, alg, (BYTE *)ecc_blob, sizeof(*ecc_blob) + ecc_blob->cbKey * 2 )))
{
heap_free( key );
return status;
}
*ret_key = key;
return STATUS_SUCCESS;
}
else if (!strcmpW( type, BCRYPT_ECCPRIVATE_BLOB ))
{
BCRYPT_ECCKEY_BLOB *ecc_blob = (BCRYPT_ECCKEY_BLOB *)input;
DWORD key_size, magic;
if (input_len < sizeof(*ecc_blob)) return STATUS_INVALID_PARAMETER;
switch (alg->id)
{
case ALG_ID_ECDH_P256:
key_size = 32;
magic = BCRYPT_ECDH_PRIVATE_P256_MAGIC;
break;
default:
FIXME( "algorithm %u does not yet support importing blob of type %s\n", alg->id, debugstr_w(type) );
return STATUS_NOT_SUPPORTED;
}
if (ecc_blob->dwMagic != magic) return STATUS_NOT_SUPPORTED;
if (ecc_blob->cbKey != key_size || input_len < sizeof(*ecc_blob) + ecc_blob->cbKey * 3)
return STATUS_INVALID_PARAMETER;
if (!(key = heap_alloc_zero( sizeof(*key) ))) return STATUS_NO_MEMORY;
key->hdr.magic = MAGIC_KEY;
if ((status = key_asymmetric_init( key, alg, NULL, 0 )))
{
heap_free( key );
return status;
}
if ((status = key_import_ecc( key, input, input_len )))
{
heap_free( key );
return status;
}
*ret_key = key;
return STATUS_SUCCESS;
}
else if (!strcmpW( type, BCRYPT_RSAPUBLIC_BLOB ))
{
BCRYPT_RSAKEY_BLOB *rsa_blob = (BCRYPT_RSAKEY_BLOB *)input;
ULONG size;
if (input_len < sizeof(*rsa_blob)) return STATUS_INVALID_PARAMETER;
if (alg->id != ALG_ID_RSA || rsa_blob->Magic != BCRYPT_RSAPUBLIC_MAGIC) return STATUS_NOT_SUPPORTED;
if (!(key = heap_alloc_zero( sizeof(*key) ))) return STATUS_NO_MEMORY;
key->hdr.magic = MAGIC_KEY;
size = sizeof(*rsa_blob) + rsa_blob->cbPublicExp + rsa_blob->cbModulus;
if ((status = key_asymmetric_init( key, alg, (BYTE *)rsa_blob, size )))
{
heap_free( key );
return status;
}
*ret_key = key;
return STATUS_SUCCESS;
}
FIXME( "unsupported key type %s\n", debugstr_w(type) );
return STATUS_NOT_SUPPORTED;
}
#else
NTSTATUS key_symmetric_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;
}
BOOL key_is_symmetric( struct key *key )
{
ERR( "support for keys not available at build time\n" );
return FALSE;
}
NTSTATUS key_set_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;
}
NTSTATUS key_asymmetric_init( struct key *key, struct algorithm *alg, const UCHAR *pubkey, ULONG pubkey_len )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS key_asymmetric_generate( struct key *key )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS key_asymmetric_verify( struct key *key, void *padding, UCHAR *hash, ULONG hash_len, UCHAR *signature,
ULONG signature_len, DWORD flags )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_import( BCRYPT_ALG_HANDLE algorithm, const WCHAR *type, BCRYPT_KEY_HANDLE *key, UCHAR *object,
ULONG object_len, UCHAR *input, ULONG input_len )
{
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;
}
NTSTATUS key_destroy( struct key *key )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_encrypt( struct key *key, UCHAR *input, ULONG input_len, void *padding, UCHAR *iv,
ULONG iv_len, UCHAR *output, ULONG output_len, ULONG *ret_len, ULONG flags )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_decrypt( struct key *key, UCHAR *input, ULONG input_len, void *padding, UCHAR *iv,
ULONG iv_len, UCHAR *output, ULONG output_len, ULONG *ret_len, ULONG flags )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS key_import_pair( struct algorithm *alg, const WCHAR *type, BCRYPT_KEY_HANDLE *ret_key, UCHAR *input,
ULONG input_len )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS key_export_ecc( struct key *key, UCHAR *output, ULONG len, ULONG *ret_len )
{
ERR( "support for keys not available at build time\n" );
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS key_import_ecc( struct key *key, UCHAR *input, ULONG len )
{
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_symmetric_init( key, alg, secret, secret_len )))
{
heap_free( key );
return status;
}
*handle = key;
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptGenerateKeyPair( BCRYPT_ALG_HANDLE algorithm, BCRYPT_KEY_HANDLE *handle, ULONG key_len,
ULONG flags )
{
struct algorithm *alg = algorithm;
struct key *key;
NTSTATUS status;
TRACE( "%p, %p, %u, %08x\n", algorithm, handle, key_len, flags );
if (!alg || alg->hdr.magic != MAGIC_ALG) return STATUS_INVALID_HANDLE;
if (!handle) return STATUS_INVALID_PARAMETER;
if (!(key = heap_alloc_zero( sizeof(*key) ))) return STATUS_NO_MEMORY;
key->hdr.magic = MAGIC_KEY;
if ((status = key_asymmetric_init( key, alg, NULL, 0 )))
{
heap_free( key );
return status;
}
*handle = key;
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptFinalizeKeyPair( BCRYPT_KEY_HANDLE handle, ULONG flags )
{
struct key *key = handle;
TRACE( "%p, %08x\n", key, flags );
if (!key || key->hdr.magic != MAGIC_KEY) return STATUS_INVALID_HANDLE;
return key_asymmetric_generate( key );
}
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( "decryption of key not yet supported\n" );
return STATUS_NOT_IMPLEMENTED;
}
return key_import( algorithm, type, key, object, object_len, input, input_len );
}
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 (!type || !size) return STATUS_INVALID_PARAMETER;
if (encrypt_key)
{
FIXME( "encryption of key not yet supported\n" );
return STATUS_NOT_IMPLEMENTED;
}
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 BCryptImportKeyPair( BCRYPT_ALG_HANDLE algorithm, BCRYPT_KEY_HANDLE decrypt_key, const WCHAR *type,
BCRYPT_KEY_HANDLE *ret_key, UCHAR *input, ULONG input_len, ULONG flags )
{
struct algorithm *alg = algorithm;
TRACE( "%p, %p, %s, %p, %p, %u, %08x\n", algorithm, decrypt_key, debugstr_w(type), ret_key, input,
input_len, flags );
if (!alg || alg->hdr.magic != MAGIC_ALG) return STATUS_INVALID_HANDLE;
if (!ret_key || !type || !input) return STATUS_INVALID_PARAMETER;
if (decrypt_key)
{
FIXME( "decryption of key not yet supported\n" );
return STATUS_NOT_IMPLEMENTED;
}
return key_import_pair( alg, type, ret_key, input, input_len );
}
NTSTATUS WINAPI BCryptVerifySignature( BCRYPT_KEY_HANDLE handle, void *padding, UCHAR *hash, ULONG hash_len,
UCHAR *signature, ULONG signature_len, ULONG flags )
{
struct key *key = handle;
TRACE( "%p, %p, %p, %u, %p, %u, %08x\n", handle, padding, hash, hash_len, signature, signature_len, flags );
if (!key || key->hdr.magic != MAGIC_KEY) return STATUS_INVALID_HANDLE;
if (!hash || !hash_len || !signature || !signature_len) return STATUS_INVALID_PARAMETER;
if (key_is_symmetric( key )) return STATUS_NOT_SUPPORTED;
return key_asymmetric_verify( key, padding, hash, hash_len, signature, signature_len, flags );
}
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;
key->hdr.magic = 0;
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;
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 (!key_is_symmetric( key ))
{
FIXME( "encryption with asymmetric keys not yet supported\n" );
return STATUS_NOT_IMPLEMENTED;
}
if (flags & ~BCRYPT_BLOCK_PADDING)
{
FIXME( "flags %08x not implemented\n", flags );
return STATUS_NOT_IMPLEMENTED;
}
return key_encrypt( key, input, input_len, padding, iv, iv_len, output, output_len, ret_len, flags );
}
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;
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 (!key_is_symmetric( key ))
{
FIXME( "decryption with asymmetric keys not yet supported\n" );
return STATUS_NOT_IMPLEMENTED;
}
if (flags & ~BCRYPT_BLOCK_PADDING)
{
FIXME( "flags %08x not supported\n", flags );
return STATUS_NOT_IMPLEMENTED;
}
return key_decrypt( key, input, input_len, padding, iv, iv_len, output, output_len, ret_len, flags );
}
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 key_set_property( key, prop, value, size, flags );
}
default:
WARN( "unknown magic %08x\n", object->magic );
return STATUS_INVALID_HANDLE;
}
}
static NTSTATUS pbkdf2( BCRYPT_ALG_HANDLE algorithm, UCHAR *pwd, ULONG pwd_len, UCHAR *salt, ULONG salt_len,
ULONGLONG iterations, ULONG i, UCHAR *dst, ULONG hash_len )
{
BCRYPT_HASH_HANDLE handle = NULL;
NTSTATUS status = STATUS_INVALID_PARAMETER;
UCHAR bytes[4], *buf;
ULONG j, k;
if (!(buf = heap_alloc( hash_len ))) return STATUS_NO_MEMORY;
for (j = 0; j < iterations; j++)
{
status = BCryptCreateHash( algorithm, &handle, NULL, 0, pwd, pwd_len, 0 );
if (status != STATUS_SUCCESS)
goto done;
if (j == 0)
{
/* use salt || INT(i) */
status = BCryptHashData( handle, salt, salt_len, 0 );
if (status != STATUS_SUCCESS)
goto done;
bytes[0] = (i >> 24) & 0xff;
bytes[1] = (i >> 16) & 0xff;
bytes[2] = (i >> 8) & 0xff;
bytes[3] = i & 0xff;
status = BCryptHashData( handle, bytes, 4, 0 );
}
else status = BCryptHashData( handle, buf, hash_len, 0 ); /* use U_j */
if (status != STATUS_SUCCESS)
goto done;
status = BCryptFinishHash( handle, buf, hash_len, 0 );
if (status != STATUS_SUCCESS)
goto done;
if (j == 0) memcpy( dst, buf, hash_len );
else for (k = 0; k < hash_len; k++) dst[k] ^= buf[k];
BCryptDestroyHash( handle );
handle = NULL;
}
done:
BCryptDestroyHash( handle );
heap_free( buf );
return status;
}
NTSTATUS WINAPI BCryptDeriveKeyPBKDF2( BCRYPT_ALG_HANDLE handle, UCHAR *pwd, ULONG pwd_len, UCHAR *salt, ULONG salt_len,
ULONGLONG iterations, UCHAR *dk, ULONG dk_len, ULONG flags )
{
struct algorithm *alg = handle;
ULONG hash_len, block_count, bytes_left, i;
UCHAR *partial;
NTSTATUS status;
TRACE( "%p, %p, %u, %p, %u, %s, %p, %u, %08x\n", handle, pwd, pwd_len, salt, salt_len,
wine_dbgstr_longlong(iterations), dk, dk_len, flags );
if (!alg || alg->hdr.magic != MAGIC_ALG) return STATUS_INVALID_HANDLE;
hash_len = alg_props[alg->id].hash_length;
if (dk_len <= 0 || dk_len > ((((ULONGLONG)1) << 32) - 1) * hash_len) return STATUS_INVALID_PARAMETER;
block_count = 1 + ((dk_len - 1) / hash_len); /* ceil(dk_len / hash_len) */
bytes_left = dk_len - (block_count - 1) * hash_len;
/* full blocks */
for (i = 1; i < block_count; i++)
{
status = pbkdf2( handle, pwd, pwd_len, salt, salt_len, iterations, i, dk + ((i - 1) * hash_len), hash_len );
if (status != STATUS_SUCCESS)
return status;
}
/* final partial block */
if (!(partial = heap_alloc( hash_len ))) return STATUS_NO_MEMORY;
status = pbkdf2( handle, pwd, pwd_len, salt, salt_len, iterations, block_count, partial, hash_len );
if (status != STATUS_SUCCESS)
{
heap_free( partial );
return status;
}
memcpy( dk + ((block_count - 1) * hash_len), partial, bytes_left );
heap_free( partial );
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptSecretAgreement(BCRYPT_KEY_HANDLE handle, BCRYPT_KEY_HANDLE key, BCRYPT_SECRET_HANDLE *secret, ULONG flags)
{
FIXME( "%p, %p, %p, %08x\n", handle, key, secret, flags );
if(secret)
*secret = (BCRYPT_SECRET_HANDLE *)0xDEADFEED;
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptDestroySecret(BCRYPT_SECRET_HANDLE secret)
{
FIXME( "%p\n", secret );
return STATUS_SUCCESS;
}
NTSTATUS WINAPI BCryptDeriveKey(BCRYPT_SECRET_HANDLE secret, LPCWSTR kdf, BCryptBufferDesc *parameter,
PUCHAR derived, ULONG derived_size, ULONG *result, ULONG flags)
{
FIXME( "%p, %s, %p, %p, %d, %p, %08x\n", secret, debugstr_w(kdf), parameter, derived, derived_size, result, flags );
return STATUS_INTERNAL_ERROR;
}
BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
{
switch (reason)
{
case DLL_PROCESS_ATTACH:
instance = hinst;
DisableThreadLibraryCalls( hinst );
#ifdef HAVE_GNUTLS_CIPHER_INIT
gnutls_initialize();
#endif
break;
case DLL_PROCESS_DETACH:
if (reserved) break;
#ifdef HAVE_GNUTLS_CIPHER_INIT
gnutls_uninitialize();
#endif
break;
}
return TRUE;
}
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