/* * 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 #include #include #include "ntstatus.h" #define WIN32_NO_STATUS #include "windef.h" #include "winbase.h" #include "ntsecapi.h" #include "wincrypt.h" #include "winternl.h" #include "bcrypt.h" #include "wine/debug.h" #include "bcrypt_internal.h" WINE_DEFAULT_DEBUG_CHANNEL(bcrypt); #define UNIX_CALL( func, params ) WINE_UNIX_CALL( unix_ ## func, params ) NTSTATUS WINAPI BCryptAddContextFunction( ULONG table, const WCHAR *ctx, ULONG iface, const WCHAR *func, ULONG pos ) { FIXME( "%#lx, %s, %#lx, %s, %lu: stub\n", table, debugstr_w(ctx), iface, debugstr_w(func), pos ); return STATUS_SUCCESS; } NTSTATUS WINAPI BCryptAddContextFunctionProvider( ULONG table, const WCHAR *ctx, ULONG iface, const WCHAR *func, const WCHAR *provider, ULONG pos ) { FIXME( "%#lx, %s, %#lx, %s, %s, %lu: stub\n", table, debugstr_w(ctx), iface, debugstr_w(func), debugstr_w(provider), pos ); return STATUS_SUCCESS; } NTSTATUS WINAPI BCryptRemoveContextFunction( ULONG table, const WCHAR *ctx, ULONG iface, const WCHAR *func ) { FIXME( "%#lx, %s, %#lx, %s: stub\n", table, debugstr_w(ctx), iface, debugstr_w(func) ); return STATUS_NOT_IMPLEMENTED; } NTSTATUS WINAPI BCryptRemoveContextFunctionProvider( ULONG table, const WCHAR *ctx, ULONG iface, const WCHAR *func, const WCHAR *provider ) { FIXME( "%#lx, %s, %#lx, %s, %s: stub\n", table, debugstr_w(ctx), iface, debugstr_w(func), debugstr_w(provider) ); return STATUS_NOT_IMPLEMENTED; } NTSTATUS WINAPI BCryptEnumContextFunctions( ULONG table, const WCHAR *ctx, ULONG iface, ULONG *buflen, CRYPT_CONTEXT_FUNCTIONS **buffer ) { FIXME( "%#lx, %s, %#lx, %p, %p\n", table, debugstr_w(ctx), iface, buflen, buffer ); return STATUS_NOT_IMPLEMENTED; } void WINAPI BCryptFreeBuffer( void *buffer ) { free( buffer ); } NTSTATUS WINAPI BCryptRegisterProvider( const WCHAR *provider, ULONG flags, CRYPT_PROVIDER_REG *reg ) { FIXME( "%s, %#lx, %p: stub\n", debugstr_w(provider), flags, reg ); return STATUS_SUCCESS; } NTSTATUS WINAPI BCryptUnregisterProvider( const WCHAR *provider ) { FIXME( "%s: stub\n", debugstr_w(provider) ); return STATUS_NOT_IMPLEMENTED; } #define MAX_HASH_OUTPUT_BYTES 64 #define MAX_HASH_BLOCK_BITS 1024 /* ordered by class, keep in sync with enum alg_id */ static const struct { const WCHAR *name; ULONG class; ULONG object_length; ULONG hash_length; ULONG block_bits; } builtin_algorithms[] = { { BCRYPT_3DES_ALGORITHM, BCRYPT_CIPHER_INTERFACE, 522, 0, 0 }, { BCRYPT_AES_ALGORITHM, BCRYPT_CIPHER_INTERFACE, 654, 0, 0 }, { BCRYPT_RC4_ALGORITHM, BCRYPT_CIPHER_INTERFACE, 654, 0, 0 }, { BCRYPT_SHA256_ALGORITHM, BCRYPT_HASH_INTERFACE, 286, 32, 512 }, { BCRYPT_SHA384_ALGORITHM, BCRYPT_HASH_INTERFACE, 382, 48, 1024 }, { BCRYPT_SHA512_ALGORITHM, BCRYPT_HASH_INTERFACE, 382, 64, 1024 }, { BCRYPT_SHA1_ALGORITHM, BCRYPT_HASH_INTERFACE, 278, 20, 512 }, { BCRYPT_MD5_ALGORITHM, BCRYPT_HASH_INTERFACE, 274, 16, 512 }, { BCRYPT_MD4_ALGORITHM, BCRYPT_HASH_INTERFACE, 270, 16, 512 }, { BCRYPT_MD2_ALGORITHM, BCRYPT_HASH_INTERFACE, 270, 16, 128 }, { BCRYPT_RSA_ALGORITHM, BCRYPT_ASYMMETRIC_ENCRYPTION_INTERFACE, 0, 0, 0 }, { BCRYPT_DH_ALGORITHM, BCRYPT_SECRET_AGREEMENT_INTERFACE, 0, 0, 0 }, { BCRYPT_ECDH_P256_ALGORITHM, BCRYPT_SECRET_AGREEMENT_INTERFACE, 0, 0, 0 }, { BCRYPT_ECDH_P384_ALGORITHM, BCRYPT_SECRET_AGREEMENT_INTERFACE, 0, 0, 0 }, { BCRYPT_RSA_SIGN_ALGORITHM, BCRYPT_SIGNATURE_INTERFACE, 0, 0, 0 }, { BCRYPT_ECDSA_P256_ALGORITHM, BCRYPT_SIGNATURE_INTERFACE, 0, 0, 0 }, { BCRYPT_ECDSA_P384_ALGORITHM, BCRYPT_SIGNATURE_INTERFACE, 0, 0, 0 }, { BCRYPT_DSA_ALGORITHM, BCRYPT_SIGNATURE_INTERFACE, 0, 0, 0 }, { BCRYPT_RNG_ALGORITHM, BCRYPT_RNG_INTERFACE, 0, 0, 0 }, }; static inline BOOL is_symmetric_key( const struct key *key ) { return builtin_algorithms[key->alg_id].class == BCRYPT_CIPHER_INTERFACE; } static inline BOOL is_asymmetric_encryption_key( struct key *key ) { return builtin_algorithms[key->alg_id].class == BCRYPT_ASYMMETRIC_ENCRYPTION_INTERFACE; } static inline BOOL is_agreement_key( struct key *key ) { return builtin_algorithms[key->alg_id].class == BCRYPT_SECRET_AGREEMENT_INTERFACE; } static inline BOOL is_signature_key( struct key *key ) { return builtin_algorithms[key->alg_id].class == BCRYPT_SIGNATURE_INTERFACE || key->alg_id == ALG_ID_RSA; } static BOOL match_operation_type( ULONG type, ULONG class ) { if (!type) return TRUE; switch (class) { case BCRYPT_CIPHER_INTERFACE: return type & BCRYPT_CIPHER_OPERATION; case BCRYPT_HASH_INTERFACE: return type & BCRYPT_HASH_OPERATION; case BCRYPT_ASYMMETRIC_ENCRYPTION_INTERFACE: return type & BCRYPT_ASYMMETRIC_ENCRYPTION_OPERATION; case BCRYPT_SECRET_AGREEMENT_INTERFACE: return type & BCRYPT_SECRET_AGREEMENT_OPERATION; case BCRYPT_SIGNATURE_INTERFACE: return type & BCRYPT_SIGNATURE_OPERATION; case BCRYPT_RNG_INTERFACE: return type & BCRYPT_RNG_OPERATION; default: break; } return FALSE; } NTSTATUS WINAPI BCryptEnumAlgorithms( ULONG type, ULONG *ret_count, BCRYPT_ALGORITHM_IDENTIFIER **ret_list, ULONG flags ) { static const ULONG supported = BCRYPT_CIPHER_OPERATION |\ BCRYPT_HASH_OPERATION |\ BCRYPT_ASYMMETRIC_ENCRYPTION_OPERATION |\ BCRYPT_SECRET_AGREEMENT_OPERATION |\ BCRYPT_SIGNATURE_OPERATION |\ BCRYPT_RNG_OPERATION; BCRYPT_ALGORITHM_IDENTIFIER *list; ULONG i, j, count = 0; TRACE( "%#lx, %p, %p, %#lx\n", type, ret_count, ret_list, flags ); if (!ret_count || !ret_list || (type & ~supported)) return STATUS_INVALID_PARAMETER; for (i = 0; i < ARRAY_SIZE( builtin_algorithms ); i++) { if (match_operation_type( type, builtin_algorithms[i].class )) count++; } if (!(list = malloc( count * sizeof(*list) ))) return STATUS_NO_MEMORY; for (i = 0, j = 0; i < ARRAY_SIZE( builtin_algorithms ); i++) { if (!match_operation_type( type, builtin_algorithms[i].class )) continue; list[j].pszName = (WCHAR *)builtin_algorithms[i].name; list[j].dwClass = builtin_algorithms[i].class; list[j].dwFlags = 0; j++; } *ret_count = count; *ret_list = list; return STATUS_SUCCESS; } static const struct algorithm pseudo_algorithms[] = { {{ MAGIC_ALG }, ALG_ID_MD2 }, {{ MAGIC_ALG }, ALG_ID_MD4 }, {{ MAGIC_ALG }, ALG_ID_MD5 }, {{ MAGIC_ALG }, ALG_ID_SHA1 }, {{ MAGIC_ALG }, ALG_ID_SHA256 }, {{ MAGIC_ALG }, ALG_ID_SHA384 }, {{ MAGIC_ALG }, ALG_ID_SHA512 }, {{ MAGIC_ALG }, ALG_ID_RC4 }, {{ MAGIC_ALG }, ALG_ID_RNG }, {{ MAGIC_ALG }, ALG_ID_MD5, 0, BCRYPT_ALG_HANDLE_HMAC_FLAG }, {{ MAGIC_ALG }, ALG_ID_SHA1, 0, BCRYPT_ALG_HANDLE_HMAC_FLAG }, {{ MAGIC_ALG }, ALG_ID_SHA256, 0, BCRYPT_ALG_HANDLE_HMAC_FLAG }, {{ MAGIC_ALG }, ALG_ID_SHA384, 0, BCRYPT_ALG_HANDLE_HMAC_FLAG }, {{ MAGIC_ALG }, ALG_ID_SHA512, 0, BCRYPT_ALG_HANDLE_HMAC_FLAG }, {{ MAGIC_ALG }, ALG_ID_RSA }, {{ 0 }}, /* ECDSA */ {{ 0 }}, /* AES_CMAC */ {{ 0 }}, /* AES_GMAC */ {{ MAGIC_ALG }, ALG_ID_MD2, 0, BCRYPT_ALG_HANDLE_HMAC_FLAG }, {{ MAGIC_ALG }, ALG_ID_MD4, 0, BCRYPT_ALG_HANDLE_HMAC_FLAG }, {{ MAGIC_ALG }, ALG_ID_3DES, CHAIN_MODE_CBC }, {{ MAGIC_ALG }, ALG_ID_3DES, CHAIN_MODE_ECB }, {{ MAGIC_ALG }, ALG_ID_3DES, CHAIN_MODE_CFB }, {{ 0 }}, /* 3DES_112_CBC */ {{ 0 }}, /* 3DES_112_ECB */ {{ 0 }}, /* 3DES_112_CFB */ {{ MAGIC_ALG }, ALG_ID_AES, CHAIN_MODE_CBC }, {{ MAGIC_ALG }, ALG_ID_AES, CHAIN_MODE_ECB }, {{ MAGIC_ALG }, ALG_ID_AES, CHAIN_MODE_CFB }, {{ MAGIC_ALG }, ALG_ID_AES, CHAIN_MODE_CCM }, {{ MAGIC_ALG }, ALG_ID_AES, CHAIN_MODE_GCM }, {{ 0 }}, /* DES_CBC */ {{ 0 }}, /* DES_ECB */ {{ 0 }}, /* DES_CFB */ {{ 0 }}, /* DESX_CBC */ {{ 0 }}, /* DESX_ECB */ {{ 0 }}, /* DESX_CFB */ {{ 0 }}, /* RC2_CBC */ {{ 0 }}, /* RC2_ECB */ {{ 0 }}, /* RC2_CFB */ {{ MAGIC_ALG }, ALG_ID_DH }, {{ 0 }}, /* ECDH */ {{ MAGIC_ALG }, ALG_ID_ECDH_P256 }, {{ MAGIC_ALG }, ALG_ID_ECDH_P384 }, {{ 0 }}, /* ECDH_P512 */ {{ MAGIC_ALG }, ALG_ID_DSA }, {{ MAGIC_ALG }, ALG_ID_ECDSA_P256 }, {{ MAGIC_ALG }, ALG_ID_ECDSA_P384 }, {{ 0 }}, /* ECDSA_P512 */ {{ MAGIC_ALG }, ALG_ID_RSA_SIGN }, }; /* Algorithm pseudo-handles are denoted by having the lowest bit set. * An aligned algorithm pointer will never have this bit set. */ static inline BOOL is_alg_pseudo_handle( BCRYPT_ALG_HANDLE handle ) { return (((ULONG_PTR)handle & 1) == 1); } static struct object *get_object( BCRYPT_HANDLE handle, ULONG magic ) { ULONG idx; if (!handle) return NULL; if (!is_alg_pseudo_handle( handle )) { struct object *obj = handle; if (magic && obj->magic != magic) return NULL; return obj; } idx = (ULONG_PTR)handle >> 4; if (idx >= ARRAY_SIZE(pseudo_algorithms) || !pseudo_algorithms[idx].hdr.magic) { FIXME( "pseudo-handle %p not supported\n", handle ); return NULL; } return (struct object *)&pseudo_algorithms[idx]; } static inline struct algorithm *get_alg_object( BCRYPT_ALG_HANDLE handle ) { return (struct algorithm *)get_object( handle, MAGIC_ALG ); } static inline struct hash *get_hash_object( BCRYPT_HASH_HANDLE handle ) { return (struct hash *)get_object( handle, MAGIC_HASH ); } static inline struct key *get_key_object( BCRYPT_KEY_HANDLE handle ) { return (struct key *)get_object( handle, MAGIC_KEY ); } static inline struct secret *get_secret_object( BCRYPT_SECRET_HANDLE handle ) { return (struct secret *)get_object( handle, MAGIC_SECRET ); } NTSTATUS WINAPI BCryptGenRandom( BCRYPT_ALG_HANDLE handle, UCHAR *buffer, ULONG count, ULONG flags ) { const DWORD supported_flags = BCRYPT_USE_SYSTEM_PREFERRED_RNG; struct algorithm *alg = get_alg_object( handle ); TRACE("%p, %p, %lu, %#lx - semi-stub\n", handle, buffer, count, flags); if (!handle) { /* 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 (is_alg_pseudo_handle( handle ) && handle != BCRYPT_RNG_ALG_HANDLE) { FIXME( "pseudo-handle %p not supported\n", handle ); return STATUS_NOT_IMPLEMENTED; } else if (!alg || alg->id != ALG_ID_RNG) return STATUS_INVALID_HANDLE; if (!buffer) return STATUS_INVALID_PARAMETER; if (flags & ~supported_flags) FIXME("unsupported flags %#lx\n", flags & ~supported_flags); if (alg) FIXME("ignoring selected algorithm\n"); /* When zero bytes are requested the function returns success too. */ if (!count) return STATUS_SUCCESS; if (alg || (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; } static struct algorithm *create_algorithm( enum alg_id id, enum chain_mode mode, DWORD flags ) { struct algorithm *ret; if (!(ret = calloc( 1, sizeof(*ret) ))) return NULL; ret->hdr.magic = MAGIC_ALG; ret->id = id; ret->mode = mode; ret->flags = flags; return ret; } NTSTATUS WINAPI BCryptOpenAlgorithmProvider( BCRYPT_ALG_HANDLE *handle, const WCHAR *id, const WCHAR *implementation, DWORD flags ) { const DWORD supported_flags = BCRYPT_ALG_HANDLE_HMAC_FLAG | BCRYPT_HASH_REUSABLE_FLAG; struct algorithm *alg; enum alg_id alg_id; ULONG i; TRACE( "%p, %s, %s, %#lx\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 %#lx\n", flags & ~supported_flags ); return STATUS_NOT_IMPLEMENTED; } for (i = 0; i < ARRAY_SIZE( builtin_algorithms ); i++) { if (!wcscmp( id, builtin_algorithms[i].name)) { alg_id = i; break; } } if (i == ARRAY_SIZE( builtin_algorithms )) { FIXME( "algorithm %s not supported\n", debugstr_w(id) ); return STATUS_NOT_IMPLEMENTED; } if (implementation && wcscmp( implementation, MS_PRIMITIVE_PROVIDER )) { FIXME( "implementation %s not supported\n", debugstr_w(implementation) ); return STATUS_NOT_IMPLEMENTED; } if (!(alg = create_algorithm( alg_id, 0, flags ))) return STATUS_NO_MEMORY; *handle = alg; return STATUS_SUCCESS; } static void destroy_object( struct object *obj ) { SecureZeroMemory( &obj->magic, sizeof(obj->magic) ); free( obj ); } NTSTATUS WINAPI BCryptCloseAlgorithmProvider( BCRYPT_ALG_HANDLE handle, DWORD flags ) { struct algorithm *alg = handle; TRACE( "%p, %#lx\n", handle, flags ); if (!handle || is_alg_pseudo_handle( handle ) || alg->hdr.magic != MAGIC_ALG) return STATUS_INVALID_HANDLE; destroy_object( &alg->hdr ); 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 ) { 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_RC4 1 #define BLOCK_LENGTH_3DES 8 #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 (!wcscmp( prop, BCRYPT_OBJECT_LENGTH )) { if (!builtin_algorithms[id].object_length) return STATUS_NOT_SUPPORTED; *ret_size = sizeof(ULONG); if (size < sizeof(ULONG)) return STATUS_BUFFER_TOO_SMALL; if (buf) *(ULONG *)buf = builtin_algorithms[id].object_length; return STATUS_SUCCESS; } if (!wcscmp( prop, BCRYPT_HASH_LENGTH )) { if (!builtin_algorithms[id].hash_length) return STATUS_NOT_SUPPORTED; *ret_size = sizeof(ULONG); if (size < sizeof(ULONG)) return STATUS_BUFFER_TOO_SMALL; if(buf) *(ULONG*)buf = builtin_algorithms[id].hash_length; return STATUS_SUCCESS; } if (!wcscmp( prop, BCRYPT_ALGORITHM_NAME )) { *ret_size = (lstrlenW(builtin_algorithms[id].name) + 1) * sizeof(WCHAR); if (size < *ret_size) return STATUS_BUFFER_TOO_SMALL; if(buf) memcpy(buf, builtin_algorithms[id].name, *ret_size); return STATUS_SUCCESS; } return STATUS_NOT_IMPLEMENTED; } static NTSTATUS get_3des_property( enum chain_mode mode, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size ) { if (!wcscmp( prop, BCRYPT_BLOCK_LENGTH )) { *ret_size = sizeof(ULONG); if (size < sizeof(ULONG)) return STATUS_BUFFER_TOO_SMALL; if (buf) *(ULONG *)buf = BLOCK_LENGTH_3DES; return STATUS_SUCCESS; } if (!wcscmp( prop, BCRYPT_CHAINING_MODE )) { const WCHAR *str; switch (mode) { case CHAIN_MODE_CBC: str = BCRYPT_CHAIN_MODE_CBC; break; default: return STATUS_NOT_IMPLEMENTED; } *ret_size = 64; if (size < *ret_size) return STATUS_BUFFER_TOO_SMALL; memcpy( buf, str, (lstrlenW(str) + 1) * sizeof(WCHAR) ); return STATUS_SUCCESS; } if (!wcscmp( 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 = 192; key_lengths->dwMaxLength = 192; key_lengths->dwIncrement = 0; } return STATUS_SUCCESS; } FIXME( "unsupported property %s\n", debugstr_w(prop) ); return STATUS_NOT_IMPLEMENTED; } static NTSTATUS get_aes_property( enum chain_mode mode, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size ) { if (!wcscmp( 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 (!wcscmp( prop, BCRYPT_CHAINING_MODE )) { const WCHAR *str; switch (mode) { case CHAIN_MODE_ECB: str = BCRYPT_CHAIN_MODE_ECB; break; case CHAIN_MODE_CBC: str = BCRYPT_CHAIN_MODE_CBC; break; case CHAIN_MODE_GCM: str = BCRYPT_CHAIN_MODE_GCM; break; case CHAIN_MODE_CFB: str = BCRYPT_CHAIN_MODE_CFB; break; default: return STATUS_NOT_IMPLEMENTED; } *ret_size = 64; if (size < *ret_size) return STATUS_BUFFER_TOO_SMALL; memcpy( buf, str, (lstrlenW(str) + 1) * sizeof(WCHAR) ); return STATUS_SUCCESS; } if (!wcscmp( 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 (!wcscmp( prop, BCRYPT_AUTH_TAG_LENGTH )) { BCRYPT_AUTH_TAG_LENGTHS_STRUCT *tag_length = (void *)buf; if (mode != CHAIN_MODE_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; } static NTSTATUS get_rc4_property( enum chain_mode mode, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size ) { if (!wcscmp( prop, BCRYPT_BLOCK_LENGTH )) { *ret_size = sizeof(ULONG); if (size < sizeof(ULONG)) return STATUS_BUFFER_TOO_SMALL; if (buf) *(ULONG *)buf = BLOCK_LENGTH_RC4; return STATUS_SUCCESS; } FIXME( "unsupported property %s\n", debugstr_w(prop) ); return STATUS_NOT_IMPLEMENTED; } static NTSTATUS get_rsa_property( enum chain_mode mode, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size ) { if (!wcscmp( prop, BCRYPT_PADDING_SCHEMES )) { *ret_size = sizeof(ULONG); if (size < sizeof(ULONG)) return STATUS_BUFFER_TOO_SMALL; if (buf) *(ULONG *)buf = BCRYPT_SUPPORTED_PAD_PKCS1_SIG; return STATUS_SUCCESS; } FIXME( "unsupported property %s\n", debugstr_w(prop) ); return STATUS_NOT_IMPLEMENTED; } static NTSTATUS get_dsa_property( enum chain_mode mode, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size ) { if (!wcscmp( prop, BCRYPT_PADDING_SCHEMES )) return STATUS_NOT_SUPPORTED; FIXME( "unsupported property %s\n", debugstr_w(prop) ); 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_3DES: return get_3des_property( alg->mode, prop, buf, size, ret_size ); case ALG_ID_AES: return get_aes_property( alg->mode, prop, buf, size, ret_size ); case ALG_ID_RC4: return get_rc4_property( alg->mode, prop, buf, size, ret_size ); case ALG_ID_RSA: return get_rsa_property( alg->mode, prop, buf, size, ret_size ); case ALG_ID_DSA: return get_dsa_property( alg->mode, prop, buf, size, ret_size ); default: break; } FIXME( "unsupported property %s algorithm %u\n", debugstr_w(prop), alg->id ); 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_3DES: if (!wcscmp( prop, BCRYPT_CHAINING_MODE )) { if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_CBC )) { alg->mode = CHAIN_MODE_CBC; return STATUS_SUCCESS; } else { FIXME( "unsupported mode %s\n", debugstr_w((WCHAR *)value) ); return STATUS_NOT_SUPPORTED; } } FIXME( "unsupported 3des algorithm property %s\n", debugstr_w(prop) ); return STATUS_NOT_IMPLEMENTED; case ALG_ID_AES: if (!wcscmp( prop, BCRYPT_CHAINING_MODE )) { if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_ECB )) { alg->mode = CHAIN_MODE_ECB; return STATUS_SUCCESS; } else if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_CBC )) { alg->mode = CHAIN_MODE_CBC; return STATUS_SUCCESS; } else if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_GCM )) { alg->mode = CHAIN_MODE_GCM; return STATUS_SUCCESS; } else if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_CFB )) { alg->mode = CHAIN_MODE_CFB; return STATUS_SUCCESS; } else { FIXME( "unsupported mode %s\n", debugstr_w((WCHAR *)value) ); return STATUS_NOT_IMPLEMENTED; } } FIXME( "unsupported aes algorithm property %s\n", debugstr_w(prop) ); return STATUS_NOT_IMPLEMENTED; case ALG_ID_RC4: if (!wcscmp( prop, BCRYPT_CHAINING_MODE )) { if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_NA )) return STATUS_SUCCESS; FIXME( "unsupported mode %s\n", debugstr_w((WCHAR *)value) ); return STATUS_NOT_IMPLEMENTED; } FIXME( "unsupported rc4 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 set_key_property( struct key *key, const WCHAR *prop, UCHAR *value, ULONG size, ULONG flags ) { if (!wcscmp( prop, BCRYPT_CHAINING_MODE )) { if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_ECB )) { key->u.s.mode = CHAIN_MODE_ECB; return STATUS_SUCCESS; } else if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_CBC )) { key->u.s.mode = CHAIN_MODE_CBC; return STATUS_SUCCESS; } else if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_GCM )) { key->u.s.mode = CHAIN_MODE_GCM; return STATUS_SUCCESS; } else if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_CFB )) { key->u.s.mode = CHAIN_MODE_CFB; return STATUS_SUCCESS; } else { FIXME( "unsupported mode %s\n", debugstr_w((WCHAR *)value) ); return STATUS_NOT_IMPLEMENTED; } } else if (!wcscmp( prop, BCRYPT_KEY_LENGTH )) { if (size < sizeof(DWORD)) return STATUS_INVALID_PARAMETER; key->u.a.bitlen = *(DWORD*)value; return STATUS_SUCCESS; } else if (!wcscmp( prop, BCRYPT_DH_PARAMETERS )) { BCRYPT_DH_PARAMETER_HEADER *hdr = (BCRYPT_DH_PARAMETER_HEADER *)value; struct key_asymmetric_import_params params; if (key->u.a.flags & KEY_FLAG_FINALIZED) return STATUS_INVALID_HANDLE; if (key->alg_id != ALG_ID_DH || size < sizeof(*hdr) || hdr->cbLength != size || hdr->dwMagic != BCRYPT_DH_PARAMETERS_MAGIC || hdr->cbKeyLength != key->u.a.bitlen / 8) return STATUS_INVALID_PARAMETER; params.key = key; params.flags = KEY_IMPORT_FLAG_DH_PARAMETERS; params.buf = value; params.len = size; return UNIX_CALL( key_asymmetric_import, ¶ms ); } FIXME( "unsupported key property %s\n", debugstr_w(prop) ); 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_dh_property( const struct key *key, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size ) { struct key_asymmetric_export_params params; if (wcscmp( prop, BCRYPT_DH_PARAMETERS )) return STATUS_NOT_SUPPORTED; if (!(key->u.a.flags & KEY_FLAG_FINALIZED)) return STATUS_INVALID_HANDLE; params.key = (struct key *)key; params.flags = KEY_EXPORT_FLAG_DH_PARAMETERS; params.buf = buf; params.len = size; params.ret_len = ret_size; return UNIX_CALL( key_asymmetric_export, ¶ms ); } static NTSTATUS get_key_property( const struct key *key, const WCHAR *prop, UCHAR *buf, ULONG size, ULONG *ret_size ) { if (!wcscmp( prop, BCRYPT_KEY_STRENGTH )) { *ret_size = sizeof(DWORD); if (size < sizeof(DWORD)) return STATUS_BUFFER_TOO_SMALL; if (buf) { if (is_symmetric_key(key)) *(DWORD *)buf = key->u.s.block_size * 8; else *(DWORD *)buf = key->u.a.bitlen; } return STATUS_SUCCESS; } switch (key->alg_id) { case ALG_ID_3DES: return get_3des_property( key->u.s.mode, prop, buf, size, ret_size ); case ALG_ID_AES: if (!wcscmp( prop, BCRYPT_AUTH_TAG_LENGTH )) return STATUS_NOT_SUPPORTED; return get_aes_property( key->u.s.mode, prop, buf, size, ret_size ); case ALG_ID_DH: return get_dh_property( key, prop, buf, size, ret_size ); default: FIXME( "unsupported algorithm %u\n", key->alg_id ); return STATUS_NOT_IMPLEMENTED; } } NTSTATUS WINAPI BCryptGetProperty( BCRYPT_HANDLE handle, const WCHAR *prop, UCHAR *buffer, ULONG count, ULONG *res, ULONG flags ) { struct object *object = get_object( handle, 0 ); TRACE( "%p, %s, %p, %lu, %p, %#lx\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 %#lx\n", object->magic ); return STATUS_INVALID_HANDLE; } } static NTSTATUS hash_prepare( 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 = builtin_algorithms[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 ))) 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 ); } static NTSTATUS hash_create( const struct algorithm *alg, UCHAR *secret, ULONG secret_len, ULONG flags, struct hash **ret_hash ) { struct hash *hash; NTSTATUS status; if (!(hash = calloc( 1, sizeof(*hash) ))) return STATUS_NO_MEMORY; hash->hdr.magic = MAGIC_HASH; hash->alg_id = alg->id; if (alg->flags & BCRYPT_ALG_HANDLE_HMAC_FLAG) hash->flags = HASH_FLAG_HMAC; if ((alg->flags & BCRYPT_HASH_REUSABLE_FLAG) || (flags & BCRYPT_HASH_REUSABLE_FLAG)) hash->flags |= HASH_FLAG_REUSABLE; if (secret_len && !(hash->secret = malloc( secret_len ))) { free( hash ); return STATUS_NO_MEMORY; } memcpy( hash->secret, secret, secret_len ); hash->secret_len = secret_len; if ((status = hash_prepare( hash ))) { free( hash->secret ); free( hash ); return status; } *ret_hash = hash; return STATUS_SUCCESS; } NTSTATUS WINAPI BCryptCreateHash( BCRYPT_ALG_HANDLE handle, BCRYPT_HASH_HANDLE *ret_handle, UCHAR *object, ULONG object_len, UCHAR *secret, ULONG secret_len, ULONG flags ) { struct algorithm *alg = get_alg_object( handle ); struct hash *hash; NTSTATUS status; TRACE( "%p, %p, %p, %lu, %p, %lu, %#lx\n", handle, ret_handle, object, object_len, secret, secret_len, flags ); if (flags & ~BCRYPT_HASH_REUSABLE_FLAG) { FIXME( "unimplemented flags %#lx\n", flags ); return STATUS_NOT_IMPLEMENTED; } if (object) FIXME( "ignoring object buffer\n" ); if (!alg) return STATUS_INVALID_HANDLE; if (!ret_handle) return STATUS_INVALID_PARAMETER; if ((status = hash_create( alg, secret, secret_len, flags, &hash ))) return status; *ret_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 = get_hash_object( handle ); struct hash *hash_copy; TRACE( "%p, %p, %p, %lu, %#lx\n", handle, handle_copy, object, objectlen, flags ); if (!hash_orig) return STATUS_INVALID_HANDLE; if (!handle_copy) return STATUS_INVALID_PARAMETER; if (object) FIXME( "ignoring object buffer\n" ); if (!(hash_copy = malloc( sizeof(*hash_copy) ))) return STATUS_NO_MEMORY; memcpy( hash_copy, hash_orig, sizeof(*hash_orig) ); if (hash_orig->secret && !(hash_copy->secret = malloc( hash_orig->secret_len ))) { 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; } static void hash_destroy( struct hash *hash ) { if (!hash) return; free( hash->secret ); destroy_object( &hash->hdr ); } NTSTATUS WINAPI BCryptDestroyHash( BCRYPT_HASH_HANDLE handle ) { struct hash *hash = get_hash_object( handle ); TRACE( "%p\n", handle ); if (!hash) return STATUS_INVALID_PARAMETER; hash_destroy( hash ); return STATUS_SUCCESS; } NTSTATUS WINAPI BCryptHashData( BCRYPT_HASH_HANDLE handle, UCHAR *input, ULONG size, ULONG flags ) { struct hash *hash = get_hash_object( handle ); TRACE( "%p, %p, %lu, %#lx\n", handle, input, size, flags ); if (!hash) return STATUS_INVALID_HANDLE; if (!input) return STATUS_SUCCESS; return hash_update( &hash->inner, hash->alg_id, input, size ); } static NTSTATUS hash_finalize( struct hash *hash, UCHAR *output ) { UCHAR buffer[MAX_HASH_OUTPUT_BYTES]; ULONG hash_length = builtin_algorithms[hash->alg_id].hash_length; NTSTATUS status; if (!(hash->flags & HASH_FLAG_HMAC)) { if ((status = hash_finish( &hash->inner, hash->alg_id, output ))) return status; if (hash->flags & HASH_FLAG_REUSABLE) return hash_prepare( hash ); return STATUS_SUCCESS; } if ((status = hash_finish( &hash->inner, hash->alg_id, buffer ))) 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 ))) return status; if (hash->flags & HASH_FLAG_REUSABLE) return hash_prepare( hash ); return STATUS_SUCCESS; } NTSTATUS WINAPI BCryptFinishHash( BCRYPT_HASH_HANDLE handle, UCHAR *output, ULONG size, ULONG flags ) { struct hash *hash = get_hash_object( handle ); TRACE( "%p, %p, %lu, %#lx\n", handle, output, size, flags ); if (!hash) return STATUS_INVALID_HANDLE; if (!output || size != builtin_algorithms[hash->alg_id].hash_length) return STATUS_INVALID_PARAMETER; return hash_finalize( hash, output ); } static NTSTATUS hash_single( struct algorithm *alg, UCHAR *secret, ULONG secret_len, UCHAR *input, ULONG input_len, UCHAR *output, ULONG output_len ) { struct hash *hash; NTSTATUS status; if ((status = hash_create( alg, secret, secret_len, 0, &hash ))) return status; if ((status = hash_update( &hash->inner, hash->alg_id, input, input_len ))) { hash_destroy( hash ); return status; } status = hash_finalize( hash, output ); hash_destroy( hash ); return status; } NTSTATUS WINAPI BCryptHash( BCRYPT_ALG_HANDLE handle, UCHAR *secret, ULONG secret_len, UCHAR *input, ULONG input_len, UCHAR *output, ULONG output_len ) { struct algorithm *alg = get_alg_object( handle ); TRACE( "%p, %p, %lu, %p, %lu, %p, %lu\n", handle, secret, secret_len, input, input_len, output, output_len ); if (!alg) return STATUS_INVALID_HANDLE; if (!output || output_len != builtin_algorithms[alg->id].hash_length) return STATUS_INVALID_PARAMETER; return hash_single(alg, secret, secret_len, input, input_len, output, output_len ); } static NTSTATUS key_asymmetric_create( enum alg_id alg_id, ULONG bitlen, struct key **ret_key ) { struct key *key; if (!__wine_unixlib_handle) { ERR( "no encryption support\n" ); return STATUS_NOT_IMPLEMENTED; } if (alg_id == ALG_ID_DH && bitlen < 512) return STATUS_INVALID_PARAMETER; if (!(key = calloc( 1, sizeof(*key) ))) return STATUS_NO_MEMORY; key->hdr.magic = MAGIC_KEY; key->alg_id = alg_id; key->u.a.bitlen = bitlen; *ret_key = key; return STATUS_SUCCESS; } static BOOL is_equal_vector( const UCHAR *vector, ULONG len, const UCHAR *vector2, ULONG len2 ) { if (!vector && !vector2) return TRUE; if (len != len2) return FALSE; return !memcmp( vector, vector2, len ); } static NTSTATUS key_symmetric_set_vector( struct key *key, UCHAR *vector, ULONG vector_len, BOOL force_reset ) { BOOL needs_reset = force_reset || !is_equal_vector( key->u.s.vector, key->u.s.vector_len, vector, vector_len ); if (vector) { free( key->u.s.vector ); key->u.s.vector = NULL; key->u.s.vector_len = 0; if (!(key->u.s.vector = malloc( vector_len ))) return STATUS_NO_MEMORY; memcpy( key->u.s.vector, vector, vector_len ); key->u.s.vector_len = vector_len; } if (needs_reset) UNIX_CALL( key_symmetric_vector_reset, key ); return STATUS_SUCCESS; } static struct key *create_symmetric_key( enum alg_id alg, enum chain_mode mode, ULONG block_size, UCHAR *secret, ULONG secret_len ) { struct key *ret; if (!(ret = calloc( 1, sizeof(*ret) ))) return NULL; InitializeCriticalSection( &ret->u.s.cs ); ret->hdr.magic = MAGIC_KEY; ret->alg_id = alg; ret->u.s.mode = mode; ret->u.s.block_size = block_size; if (!(ret->u.s.secret = malloc( secret_len ))) { DeleteCriticalSection( &ret->u.s.cs ); free( ret ); return NULL; } memcpy( ret->u.s.secret, secret, secret_len ); ret->u.s.secret_len = secret_len; return ret; } 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 generate_symmetric_key( struct algorithm *alg, BCRYPT_KEY_HANDLE *ret_handle, UCHAR *secret, ULONG secret_len ) { BCRYPT_KEY_LENGTHS_STRUCT key_lengths; ULONG block_size, size; struct key *key; NTSTATUS status; if (!(block_size = get_block_size( alg ))) return STATUS_INVALID_PARAMETER; if (!get_alg_property( alg, BCRYPT_KEY_LENGTHS, (UCHAR *)&key_lengths, sizeof(key_lengths), &size )) { if (secret_len > (size = key_lengths.dwMaxLength / 8)) { WARN( "secret_len %lu exceeds key max length %lu, setting to maximum\n", secret_len, size ); secret_len = size; } else if (secret_len < (size = key_lengths.dwMinLength / 8)) { WARN( "secret_len %lu is less than minimum key length %lu\n", secret_len, size ); return STATUS_INVALID_PARAMETER; } else if (key_lengths.dwIncrement && (secret_len * 8 - key_lengths.dwMinLength) % key_lengths.dwIncrement) { WARN( "secret_len %lu is not a valid key length\n", secret_len ); return STATUS_INVALID_PARAMETER; } } if (!(key = create_symmetric_key( alg->id, alg->mode, block_size, secret, secret_len ))) status = STATUS_NO_MEMORY; else { *ret_handle = key; status = STATUS_SUCCESS; } return status; } static NTSTATUS key_import( struct algorithm *alg, const WCHAR *type, BCRYPT_KEY_HANDLE *key, UCHAR *object, ULONG object_len, UCHAR *input, ULONG input_len ) { ULONG len; if (!wcscmp( 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 %lu\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 generate_symmetric_key( alg, key, (UCHAR *)&header[1], len ); } else if (!wcscmp( 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 generate_symmetric_key( alg, key, input + sizeof(len), len ); } 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 ) { struct key_asymmetric_export_params params; if (!wcscmp( 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; if (output) { 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 (!wcscmp( 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; if (output) { *(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 (!wcscmp( type, BCRYPT_DSA_PRIVATE_BLOB ) || !wcscmp( type, LEGACY_DSA_V2_PRIVATE_BLOB ) || !wcscmp( type, BCRYPT_ECCPRIVATE_BLOB ) || !wcscmp( type, BCRYPT_DH_PRIVATE_BLOB )) { params.key = key; params.flags = 0; params.buf = output; params.len = output_len; params.ret_len = size; return UNIX_CALL( key_asymmetric_export, ¶ms ); } else if (!wcscmp( type, BCRYPT_RSAPRIVATE_BLOB ) || !wcscmp( type, BCRYPT_RSAFULLPRIVATE_BLOB )) { params.key = key; params.flags = (wcscmp( type, BCRYPT_RSAPRIVATE_BLOB )) ? KEY_EXPORT_FLAG_RSA_FULL : 0; params.buf = output; params.len = output_len; params.ret_len = size; return UNIX_CALL( key_asymmetric_export, ¶ms ); } else if (!wcscmp( type, BCRYPT_DSA_PUBLIC_BLOB ) || !wcscmp( type, LEGACY_DSA_V2_PUBLIC_BLOB ) || !wcscmp( type, BCRYPT_ECCPUBLIC_BLOB ) || !wcscmp( type, BCRYPT_RSAPUBLIC_BLOB ) || !wcscmp( type, BCRYPT_DH_PUBLIC_BLOB )) { params.key = key; params.flags = KEY_EXPORT_FLAG_PUBLIC; params.buf = output; params.len = output_len; params.ret_len = size; return UNIX_CALL( key_asymmetric_export, ¶ms ); } FIXME( "unsupported key type %s\n", debugstr_w(type) ); return STATUS_NOT_IMPLEMENTED; } static NTSTATUS key_symmetric_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 ) { struct key_symmetric_set_auth_data_params auth_params; struct key_symmetric_encrypt_params encrypt_params; struct key_symmetric_get_tag_params tag_params; ULONG bytes_left = input_len; UCHAR *buf; NTSTATUS status; if (key->u.s.mode == CHAIN_MODE_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_vector( key, auth_info->pbNonce, auth_info->cbNonce, TRUE ))) 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; auth_params.key = key; auth_params.auth_data = auth_info->pbAuthData; auth_params.len = auth_info->cbAuthData; if ((status = UNIX_CALL( key_symmetric_set_auth_data, &auth_params ))) return status; encrypt_params.key = key; encrypt_params.input = input; encrypt_params.input_len = input_len; encrypt_params.output = output; encrypt_params.output_len = output_len; if ((status = UNIX_CALL( key_symmetric_encrypt, &encrypt_params ))) return status; tag_params.key = key; tag_params.tag = auth_info->pbTag; tag_params.len = auth_info->cbTag; return UNIX_CALL( key_symmetric_get_tag, &tag_params ); } *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 == CHAIN_MODE_ECB && iv) return STATUS_INVALID_PARAMETER; if ((status = key_symmetric_set_vector( key, iv, iv_len, flags & BCRYPT_BLOCK_PADDING ))) return status; encrypt_params.key = key; encrypt_params.input = input; encrypt_params.input_len = key->u.s.block_size; encrypt_params.output = output; encrypt_params.output_len = key->u.s.block_size; while (bytes_left >= key->u.s.block_size) { if ((status = UNIX_CALL( key_symmetric_encrypt, &encrypt_params ))) return status; if (key->u.s.mode == CHAIN_MODE_ECB && (status = key_symmetric_set_vector( key, NULL, 0, TRUE ))) return status; bytes_left -= key->u.s.block_size; encrypt_params.input += key->u.s.block_size; encrypt_params.output += key->u.s.block_size; } if (flags & BCRYPT_BLOCK_PADDING) { if (!(buf = malloc( key->u.s.block_size ))) return STATUS_NO_MEMORY; memcpy( buf, encrypt_params.input, bytes_left ); memset( buf + bytes_left, key->u.s.block_size - bytes_left, key->u.s.block_size - bytes_left ); encrypt_params.input = buf; status = UNIX_CALL( key_symmetric_encrypt, &encrypt_params ); free( buf ); } if (!status) { if (key->u.s.vector && *ret_len >= key->u.s.vector_len) { memcpy( key->u.s.vector, output + *ret_len - key->u.s.vector_len, key->u.s.vector_len ); if (iv) memcpy( iv, key->u.s.vector, min( iv_len, key->u.s.vector_len )); } else FIXME( "Unexpected vector len %lu, *ret_len %lu.\n", key->u.s.vector_len, *ret_len ); } return status; } static NTSTATUS key_symmetric_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 ) { struct key_symmetric_set_auth_data_params auth_params; struct key_symmetric_decrypt_params decrypt_params; struct key_symmetric_get_tag_params tag_params; ULONG bytes_left = input_len; NTSTATUS status; if (key->u.s.mode == CHAIN_MODE_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_vector( key, auth_info->pbNonce, auth_info->cbNonce, TRUE ))) 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; auth_params.key = key; auth_params.auth_data = auth_info->pbAuthData; auth_params.len = auth_info->cbAuthData; if ((status = UNIX_CALL( key_symmetric_set_auth_data, &auth_params ))) return status; decrypt_params.key = key; decrypt_params.input = input; decrypt_params.input_len = input_len; decrypt_params.output = output; decrypt_params.output_len = output_len; if ((status = UNIX_CALL( key_symmetric_decrypt, &decrypt_params ))) return status; tag_params.key = key; tag_params.tag = tag; tag_params.len = sizeof(tag); if ((status = UNIX_CALL( key_symmetric_get_tag, &tag_params ))) return status; if (memcmp( tag, auth_info->pbTag, auth_info->cbTag )) return STATUS_AUTH_TAG_MISMATCH; return STATUS_SUCCESS; } *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 == CHAIN_MODE_ECB && iv) return STATUS_INVALID_PARAMETER; if ((status = key_symmetric_set_vector( key, iv, iv_len, flags & BCRYPT_BLOCK_PADDING ))) return status; decrypt_params.key = key; decrypt_params.input = input; decrypt_params.input_len = key->u.s.block_size; decrypt_params.output = output; decrypt_params.output_len = key->u.s.block_size; while (bytes_left >= key->u.s.block_size) { if ((status = UNIX_CALL( key_symmetric_decrypt, &decrypt_params ))) return status; if (key->u.s.mode == CHAIN_MODE_ECB && (status = key_symmetric_set_vector( key, NULL, 0, TRUE ))) return status; bytes_left -= key->u.s.block_size; decrypt_params.input += key->u.s.block_size; decrypt_params.output += key->u.s.block_size; } if (flags & BCRYPT_BLOCK_PADDING) { UCHAR *buf, *dst = decrypt_params.output; if (!(buf = malloc( key->u.s.block_size ))) return STATUS_NO_MEMORY; decrypt_params.output = buf; status = UNIX_CALL( key_symmetric_decrypt, &decrypt_params ); 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 */ free( buf ); } if (!status) { if (key->u.s.vector && input_len >= key->u.s.vector_len) { memcpy( key->u.s.vector, input + input_len - key->u.s.vector_len, key->u.s.vector_len ); if (iv) memcpy( iv, key->u.s.vector, min( iv_len, key->u.s.vector_len )); } else FIXME( "Unexpected vector len %lu, *ret_len %lu.\n", key->u.s.vector_len, *ret_len ); } return status; } static void key_destroy( struct key *key ) { if (is_symmetric_key( key )) { UNIX_CALL( key_symmetric_destroy, key ); free( key->u.s.vector ); free( key->u.s.secret ); DeleteCriticalSection( &key->u.s.cs ); } else UNIX_CALL( key_asymmetric_destroy, key ); destroy_object( &key->hdr ); } static NTSTATUS convert_legacy_rsaprivate_blob( struct algorithm *alg, BCRYPT_RSAKEY_BLOB **rsa_data, ULONG *rsa_len, UCHAR *input, ULONG input_len ) { struct { PUBLICKEYSTRUC header; RSAPUBKEY rsapubkey; } *blob = (void *)input; ULONG len, pos; UCHAR *conv; int i; if (alg->id != ALG_ID_RSA) return STATUS_NOT_SUPPORTED; if (input_len < sizeof(*blob)) return NTE_BAD_DATA; if (blob->header.bType != PRIVATEKEYBLOB || blob->header.bVersion != CUR_BLOB_VERSION || blob->header.aiKeyAlg != CALG_RSA_KEYX || blob->rsapubkey.magic != BCRYPT_RSAPRIVATE_MAGIC || input_len != sizeof(*blob) + blob->rsapubkey.bitlen / 16 * 9) return NTE_BAD_DATA; if (blob->rsapubkey.bitlen & 0xf) return STATUS_INVALID_PARAMETER; len = sizeof(**rsa_data) + sizeof(blob->rsapubkey.pubexp) + blob->rsapubkey.bitlen / 4; if (!(conv = malloc( len ))) return STATUS_NO_MEMORY; *rsa_data = (BCRYPT_RSAKEY_BLOB *)conv; (*rsa_data)->Magic = blob->rsapubkey.magic; (*rsa_data)->BitLength = blob->rsapubkey.bitlen; (*rsa_data)->cbPublicExp = sizeof(blob->rsapubkey.pubexp); (*rsa_data)->cbModulus = blob->rsapubkey.bitlen / 8; (*rsa_data)->cbPrime1 = blob->rsapubkey.bitlen / 16; (*rsa_data)->cbPrime2 = blob->rsapubkey.bitlen / 16; len = sizeof(**rsa_data); for(i = 0; i < (*rsa_data)->cbPublicExp; i++) conv[len++] = ((UCHAR *)&blob->rsapubkey.pubexp)[(*rsa_data)->cbPublicExp - i - 1]; pos = sizeof(*blob); for(i = 0; i < (*rsa_data)->cbModulus; i++) conv[len++] = input[pos + (*rsa_data)->cbModulus - i - 1]; pos += (*rsa_data)->cbModulus; for(i = 0; i < (*rsa_data)->cbPrime1; i++) conv[len++] = input[pos + (*rsa_data)->cbPrime1 - i - 1]; pos += (*rsa_data)->cbPrime1; for(i = 0; i < (*rsa_data)->cbPrime2; i++) conv[len++] = input[pos + (*rsa_data)->cbPrime2 - i - 1]; *rsa_len = len; return STATUS_SUCCESS; } static NTSTATUS key_import_pair( struct algorithm *alg, const WCHAR *type, BCRYPT_KEY_HANDLE *ret_key, UCHAR *input, ULONG input_len ) { struct key_asymmetric_import_params params; struct key *key; NTSTATUS status; ULONG size; if (!wcscmp( 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_ECDH_P384: key_size = 48; magic = BCRYPT_ECDH_PUBLIC_P384_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_INVALID_PARAMETER; if (ecc_blob->cbKey != key_size || input_len < sizeof(*ecc_blob) + ecc_blob->cbKey * 2) return STATUS_INVALID_PARAMETER; if ((status = key_asymmetric_create( alg->id, key_size * 8, &key ))) return status; params.key = key; params.flags = KEY_IMPORT_FLAG_PUBLIC; params.buf = input; params.len = input_len; if ((status = UNIX_CALL( key_asymmetric_import, ¶ms ))) { key_destroy( key ); return status; } } else if (!wcscmp( 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; case ALG_ID_ECDH_P384: key_size = 48; magic = BCRYPT_ECDH_PRIVATE_P384_MAGIC; break; case ALG_ID_ECDSA_P256: key_size = 32; magic = BCRYPT_ECDSA_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_INVALID_PARAMETER; if (ecc_blob->cbKey != key_size || input_len < sizeof(*ecc_blob) + ecc_blob->cbKey * 3) return STATUS_INVALID_PARAMETER; if ((status = key_asymmetric_create( alg->id, key_size * 8, &key ))) return status; params.key = key; params.flags = 0; params.buf = input; params.len = input_len; if ((status = UNIX_CALL( key_asymmetric_import, ¶ms ))) { key_destroy( key ); return status; } } else if (!wcscmp( type, BCRYPT_RSAPUBLIC_BLOB )) { BCRYPT_RSAKEY_BLOB *rsa_blob = (BCRYPT_RSAKEY_BLOB *)input; if (input_len < sizeof(*rsa_blob)) return STATUS_INVALID_PARAMETER; if ((alg->id != ALG_ID_RSA && alg->id != ALG_ID_RSA_SIGN) || rsa_blob->Magic != BCRYPT_RSAPUBLIC_MAGIC) return STATUS_NOT_SUPPORTED; size = sizeof(*rsa_blob) + rsa_blob->cbPublicExp + rsa_blob->cbModulus; if (size != input_len) return NTE_BAD_DATA; if ((status = key_asymmetric_create( alg->id, rsa_blob->BitLength, &key ))) return status; params.key = key; params.flags = KEY_IMPORT_FLAG_PUBLIC; params.buf = input; params.len = input_len; if ((status = UNIX_CALL( key_asymmetric_import, ¶ms ))) { key_destroy( key ); return status; } } else if (!wcscmp( type, BCRYPT_RSAPRIVATE_BLOB ) || !wcscmp( type, BCRYPT_RSAFULLPRIVATE_BLOB )) { BCRYPT_RSAKEY_BLOB *rsa_blob = (BCRYPT_RSAKEY_BLOB *)input; if (input_len < sizeof(*rsa_blob)) return STATUS_INVALID_PARAMETER; if (alg->id != ALG_ID_RSA || (rsa_blob->Magic != BCRYPT_RSAPRIVATE_MAGIC && rsa_blob->Magic != BCRYPT_RSAFULLPRIVATE_MAGIC)) return STATUS_NOT_SUPPORTED; if ((status = key_asymmetric_create( alg->id, rsa_blob->BitLength, &key ))) return status; params.key = key; params.flags = 0; params.buf = input; params.len = input_len; if ((status = UNIX_CALL( key_asymmetric_import, ¶ms ))) { key_destroy( key ); return status; } } else if (!wcscmp( type, LEGACY_RSAPRIVATE_BLOB )) { BCRYPT_RSAKEY_BLOB *rsa_blob; status = convert_legacy_rsaprivate_blob( alg, &rsa_blob, &input_len, input, input_len ); if (status != STATUS_SUCCESS) return status; status = key_import_pair( alg, BCRYPT_RSAPRIVATE_BLOB, ret_key, (UCHAR *)rsa_blob, input_len ); SecureZeroMemory( rsa_blob, input_len ); free( rsa_blob ); return status; } else if (!wcscmp( type, BCRYPT_DSA_PUBLIC_BLOB )) { BCRYPT_DSA_KEY_BLOB *dsa_blob = (BCRYPT_DSA_KEY_BLOB *)input; if (input_len < sizeof(*dsa_blob)) return STATUS_INVALID_PARAMETER; if (alg->id != ALG_ID_DSA || dsa_blob->dwMagic != BCRYPT_DSA_PUBLIC_MAGIC) return STATUS_NOT_SUPPORTED; if ((status = key_asymmetric_create( alg->id, dsa_blob->cbKey * 8, &key ))) return status; params.key = key; params.flags = KEY_IMPORT_FLAG_PUBLIC; params.buf = input; params.len = input_len; if ((status = UNIX_CALL( key_asymmetric_import, ¶ms ))) { key_destroy( key ); return status; } } else if (!wcscmp( type, LEGACY_DSA_V2_PRIVATE_BLOB )) { BLOBHEADER *hdr = (BLOBHEADER *)input; DSSPUBKEY *pubkey; if (input_len < sizeof(*hdr)) return STATUS_INVALID_PARAMETER; if (hdr->bType != PRIVATEKEYBLOB && hdr->bVersion != 2 && hdr->aiKeyAlg != CALG_DSS_SIGN) { FIXME( "blob type %u version %u alg id %u not supported\n", hdr->bType, hdr->bVersion, hdr->aiKeyAlg ); return STATUS_NOT_SUPPORTED; } if (alg->id != ALG_ID_DSA) { FIXME( "algorithm %u does not support importing blob of type %s\n", alg->id, debugstr_w(type) ); return STATUS_NOT_SUPPORTED; } if (input_len < sizeof(*hdr) + sizeof(*pubkey)) return STATUS_INVALID_PARAMETER; pubkey = (DSSPUBKEY *)(hdr + 1); if (pubkey->magic != MAGIC_DSS2) return STATUS_NOT_SUPPORTED; if (input_len < sizeof(*hdr) + sizeof(*pubkey) + (pubkey->bitlen / 8) * 2 + 40 + sizeof(DSSSEED)) return STATUS_INVALID_PARAMETER; if ((status = key_asymmetric_create( alg->id, pubkey->bitlen, &key ))) return status; key->u.a.flags |= KEY_FLAG_LEGACY_DSA_V2; params.key = key; params.flags = 0; params.buf = input; params.len = input_len; if ((status = UNIX_CALL( key_asymmetric_import, ¶ms ))) { key_destroy( key ); return status; } } else if (!wcscmp( type, LEGACY_DSA_V2_PUBLIC_BLOB )) /* not supported on native */ { BLOBHEADER *hdr = (BLOBHEADER *)input; DSSPUBKEY *pubkey; if (alg->id != ALG_ID_DSA) return STATUS_NOT_SUPPORTED; if (input_len < sizeof(*hdr)) return STATUS_INVALID_PARAMETER; if (hdr->bType != PUBLICKEYBLOB && hdr->bVersion != 2 && hdr->aiKeyAlg != CALG_DSS_SIGN) { FIXME( "blob type %u version %u alg id %u not supported\n", hdr->bType, hdr->bVersion, hdr->aiKeyAlg ); return STATUS_NOT_SUPPORTED; } if (input_len < sizeof(*hdr) + sizeof(*pubkey)) return STATUS_INVALID_PARAMETER; pubkey = (DSSPUBKEY *)(hdr + 1); if (pubkey->magic != MAGIC_DSS1) return STATUS_NOT_SUPPORTED; size = sizeof(*hdr) + sizeof(*pubkey) + (pubkey->bitlen / 8) * 3 + 20 + sizeof(DSSSEED); if (input_len < size) return STATUS_INVALID_PARAMETER; if ((status = key_asymmetric_create( alg->id, pubkey->bitlen, &key ))) return status; key->u.a.flags |= KEY_FLAG_LEGACY_DSA_V2; params.key = key; params.flags = KEY_IMPORT_FLAG_PUBLIC; params.buf = input; params.len = input_len; if ((status = UNIX_CALL( key_asymmetric_import, ¶ms ))) { key_destroy( key ); return status; } } else if (!wcscmp( type, BCRYPT_DH_PRIVATE_BLOB )) { BCRYPT_DH_KEY_BLOB *dh_blob = (BCRYPT_DH_KEY_BLOB *)input; if (input_len != sizeof(*dh_blob) + dh_blob->cbKey * 4) return STATUS_INVALID_PARAMETER; if (alg->id != ALG_ID_DH || dh_blob->dwMagic != BCRYPT_DH_PRIVATE_MAGIC) return STATUS_NOT_SUPPORTED; if ((status = key_asymmetric_create( alg->id, dh_blob->cbKey * 8, &key ))) return status; params.key = key; params.flags = 0; params.buf = input; params.len = input_len; if ((status = UNIX_CALL( key_asymmetric_import, ¶ms ))) { key_destroy( key ); return status; } } else if (!wcscmp( type, BCRYPT_DH_PUBLIC_BLOB )) { BCRYPT_DH_KEY_BLOB *dh_blob = (BCRYPT_DH_KEY_BLOB *)input; if (input_len != sizeof(*dh_blob) + dh_blob->cbKey * 3) return STATUS_INVALID_PARAMETER; if (alg->id != ALG_ID_DH || dh_blob->dwMagic != BCRYPT_DH_PUBLIC_MAGIC) return STATUS_NOT_SUPPORTED; if ((status = key_asymmetric_create( alg->id, dh_blob->cbKey * 8, &key ))) return status; params.key = key; params.flags = KEY_IMPORT_FLAG_PUBLIC; params.buf = input; params.len = input_len; if ((status = UNIX_CALL( key_asymmetric_import, ¶ms ))) { key_destroy( key ); return status; } } else { FIXME( "unsupported key type %s\n", debugstr_w(type) ); return STATUS_NOT_SUPPORTED; } if (!status) { key->u.a.flags |= KEY_FLAG_FINALIZED; *ret_key = key; } return status; } NTSTATUS WINAPI BCryptGenerateSymmetricKey( BCRYPT_ALG_HANDLE handle, BCRYPT_KEY_HANDLE *ret_handle, UCHAR *object, ULONG object_len, UCHAR *secret, ULONG secret_len, ULONG flags ) { struct algorithm *alg = get_alg_object( handle ); TRACE( "%p, %p, %p, %lu, %p, %lu, %#lx\n", handle, ret_handle, object, object_len, secret, secret_len, flags ); if (object) FIXME( "ignoring object buffer\n" ); if (!__wine_unixlib_handle) { ERR( "no encryption support\n" ); return STATUS_NOT_IMPLEMENTED; } if (!alg) return STATUS_INVALID_HANDLE; return generate_symmetric_key( alg, ret_handle, secret, secret_len ); } NTSTATUS WINAPI BCryptGenerateKeyPair( BCRYPT_ALG_HANDLE handle, BCRYPT_KEY_HANDLE *ret_handle, ULONG key_len, ULONG flags ) { struct algorithm *alg = get_alg_object( handle ); struct key *key; NTSTATUS status; TRACE( "%p, %p, %lu, %#lx\n", handle, ret_handle, key_len, flags ); if (!alg) return STATUS_INVALID_HANDLE; if (!ret_handle) return STATUS_INVALID_PARAMETER; if ((status = key_asymmetric_create( alg->id, key_len, &key ))) return status; *ret_handle = key; return STATUS_SUCCESS; } NTSTATUS WINAPI BCryptFinalizeKeyPair( BCRYPT_KEY_HANDLE handle, ULONG flags ) { struct key *key = get_key_object( handle ); NTSTATUS ret; TRACE( "%p, %#lx\n", key, flags ); if (!key || key->u.a.flags & KEY_FLAG_FINALIZED) return STATUS_INVALID_HANDLE; if (!(ret = UNIX_CALL( key_asymmetric_generate, key ))) key->u.a.flags |= KEY_FLAG_FINALIZED; return ret; } NTSTATUS WINAPI BCryptImportKey( BCRYPT_ALG_HANDLE handle, BCRYPT_KEY_HANDLE decrypt_key, const WCHAR *type, BCRYPT_KEY_HANDLE *ret_handle, UCHAR *object, ULONG object_len, UCHAR *input, ULONG input_len, ULONG flags ) { struct algorithm *alg = get_alg_object( handle ); TRACE( "%p, %p, %s, %p, %p, %lu, %p, %lu, %#lx\n", handle, decrypt_key, debugstr_w(type), ret_handle, object, object_len, input, input_len, flags ); if (!alg) return STATUS_INVALID_HANDLE; if (!ret_handle || !type || !input) return STATUS_INVALID_PARAMETER; if (decrypt_key) { FIXME( "decryption of key not yet supported\n" ); return STATUS_NOT_IMPLEMENTED; } return key_import( alg, type, ret_handle, object, object_len, input, input_len ); } NTSTATUS WINAPI BCryptExportKey( BCRYPT_KEY_HANDLE export_key_handle, BCRYPT_KEY_HANDLE encrypt_key_handle, const WCHAR *type, UCHAR *output, ULONG output_len, ULONG *size, ULONG flags ) { struct key *key = get_key_object( export_key_handle ); TRACE( "%p, %p, %s, %p, %lu, %p, %#lx\n", export_key_handle, encrypt_key_handle, debugstr_w(type), output, output_len, size, flags ); if (!key) return STATUS_INVALID_HANDLE; if (!type || !size) return STATUS_INVALID_PARAMETER; if (encrypt_key_handle) { FIXME( "encryption of key not yet supported\n" ); return STATUS_NOT_IMPLEMENTED; } return key_export( key, type, output, output_len, size ); } static NTSTATUS key_duplicate( struct key *key_orig, struct key **ret_key ) { struct key_asymmetric_duplicate_params params; struct key *key_copy; NTSTATUS status; UCHAR *buffer; if (!(key_copy = calloc( 1, sizeof(*key_copy) ))) return STATUS_NO_MEMORY; key_copy->hdr = key_orig->hdr; key_copy->alg_id = key_orig->alg_id; if (is_symmetric_key( key_orig )) { if (!(buffer = malloc( key_orig->u.s.secret_len ))) { free( key_copy ); 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; InitializeCriticalSection( &key_copy->u.s.cs ); *ret_key = key_copy; return STATUS_SUCCESS; } key_copy->u.a.bitlen = key_orig->u.a.bitlen; key_copy->u.a.flags = key_orig->u.a.flags; key_copy->u.a.dss_seed = key_orig->u.a.dss_seed; params.key_orig = key_orig; params.key_copy = key_copy; if (!(status = UNIX_CALL( key_asymmetric_duplicate, ¶ms ))) *ret_key = key_copy; else free( key_copy ); return status; } NTSTATUS WINAPI BCryptDuplicateKey( BCRYPT_KEY_HANDLE handle, BCRYPT_KEY_HANDLE *handle_copy, UCHAR *object, ULONG object_len, ULONG flags ) { struct key *key_orig = get_key_object( handle ); struct key *key_copy; NTSTATUS status; TRACE( "%p, %p, %p, %lu, %#lx\n", handle, handle_copy, object, object_len, flags ); if (object) FIXME( "ignoring object buffer\n" ); if (!key_orig) return STATUS_INVALID_HANDLE; if (!handle_copy) return STATUS_INVALID_PARAMETER; if ((status = key_duplicate( key_orig, &key_copy ))) return status; *handle_copy = key_copy; return STATUS_SUCCESS; } static const WCHAR *resolve_blob_type( const WCHAR *type, UCHAR *input, ULONG input_len ) { BCRYPT_KEY_BLOB *blob = (BCRYPT_KEY_BLOB *)input; if (!type) return NULL; if (wcscmp( type, BCRYPT_PUBLIC_KEY_BLOB )) return type; if (input_len < sizeof(*blob)) return NULL; switch (blob->Magic) { case BCRYPT_ECDH_PUBLIC_P256_MAGIC: case BCRYPT_ECDH_PUBLIC_P384_MAGIC: case BCRYPT_ECDSA_PUBLIC_P256_MAGIC: case BCRYPT_ECDSA_PUBLIC_P384_MAGIC: return BCRYPT_ECCPUBLIC_BLOB; case BCRYPT_RSAPUBLIC_MAGIC: return BCRYPT_RSAPUBLIC_BLOB; case BCRYPT_DSA_PUBLIC_MAGIC: return BCRYPT_DSA_PUBLIC_BLOB; default: FIXME( "unsupported key magic %#lx\n", blob->Magic ); return NULL; } } NTSTATUS WINAPI BCryptImportKeyPair( BCRYPT_ALG_HANDLE handle, BCRYPT_KEY_HANDLE decrypt_key_handle, const WCHAR *type, BCRYPT_KEY_HANDLE *ret_handle, UCHAR *input, ULONG input_len, ULONG flags ) { struct algorithm *alg = get_alg_object( handle ); TRACE( "%p, %p, %s, %p, %p, %lu, %#lx\n", handle, decrypt_key_handle, debugstr_w(type), ret_handle, input, input_len, flags ); if (!alg) return STATUS_INVALID_HANDLE; if (!ret_handle || !input || !(type = resolve_blob_type( type, input, input_len ))) return STATUS_INVALID_PARAMETER; if (decrypt_key_handle) { FIXME( "decryption of key not yet supported\n" ); return STATUS_NOT_IMPLEMENTED; } return key_import_pair( alg, type, ret_handle, input, input_len ); } NTSTATUS WINAPI BCryptSignHash( BCRYPT_KEY_HANDLE handle, void *padding, UCHAR *input, ULONG input_len, UCHAR *output, ULONG output_len, ULONG *ret_len, ULONG flags ) { struct key_asymmetric_sign_params params; struct key *key = get_key_object( handle ); TRACE( "%p, %p, %p, %lu, %p, %lu, %p, %#lx\n", handle, padding, input, input_len, output, output_len, ret_len, flags ); if (!key) return STATUS_INVALID_HANDLE; if (!is_signature_key( key )) return STATUS_NOT_SUPPORTED; params.key = key; params.padding = padding; params.input = input; params.input_len = input_len; params.output = output; params.output_len = output_len; params.ret_len = ret_len; params.flags = flags; return UNIX_CALL( key_asymmetric_sign, ¶ms ); } NTSTATUS WINAPI BCryptVerifySignature( BCRYPT_KEY_HANDLE handle, void *padding, UCHAR *hash, ULONG hash_len, UCHAR *signature, ULONG signature_len, ULONG flags ) { struct key_asymmetric_verify_params params; struct key *key = get_key_object( handle ); TRACE( "%p, %p, %p, %lu, %p, %lu, %#lx\n", handle, padding, hash, hash_len, signature, signature_len, flags ); if (!key) return STATUS_INVALID_HANDLE; if (!is_signature_key( key )) return STATUS_NOT_SUPPORTED; if (!hash || !hash_len || !signature || !signature_len) return STATUS_INVALID_PARAMETER; params.key = key; params.padding = padding; params.hash = hash; params.hash_len = hash_len; params.signature = signature; params.signature_len = signature_len; params.flags = flags; return UNIX_CALL( key_asymmetric_verify, ¶ms ); } NTSTATUS WINAPI BCryptDestroyKey( BCRYPT_KEY_HANDLE handle ) { struct key *key = get_key_object( handle ); TRACE( "%p\n", handle ); if (!key) return STATUS_INVALID_HANDLE; key_destroy( key ); return STATUS_SUCCESS; } 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 = get_key_object( handle ); struct key_asymmetric_encrypt_params asymmetric_params; NTSTATUS ret; TRACE( "%p, %p, %lu, %p, %p, %lu, %p, %lu, %p, %#lx\n", handle, input, input_len, padding, iv, iv_len, output, output_len, ret_len, flags ); if (!key) return STATUS_INVALID_HANDLE; if (is_symmetric_key( key )) { if (flags & ~BCRYPT_BLOCK_PADDING) { FIXME( "flags %#lx not implemented\n", flags ); return STATUS_NOT_IMPLEMENTED; } EnterCriticalSection( &key->u.s.cs ); ret = key_symmetric_encrypt( key, input, input_len, padding, iv, iv_len, output, output_len, ret_len, flags ); LeaveCriticalSection( &key->u.s.cs ); } else { if (flags & BCRYPT_PAD_NONE || flags & BCRYPT_PAD_OAEP) { FIXME( "flags %#lx not implemented\n", flags ); return STATUS_NOT_IMPLEMENTED; } if (!is_asymmetric_encryption_key( key )) return STATUS_NOT_SUPPORTED; asymmetric_params.input = input; asymmetric_params.input_len = input_len; asymmetric_params.key = key; asymmetric_params.output = output; asymmetric_params.output_len = output_len; asymmetric_params.ret_len = ret_len; ret = UNIX_CALL(key_asymmetric_encrypt, &asymmetric_params); } return ret; } 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 = get_key_object( handle ); struct key_asymmetric_decrypt_params params; NTSTATUS ret; TRACE( "%p, %p, %lu, %p, %p, %lu, %p, %lu, %p, %#lx\n", handle, input, input_len, padding, iv, iv_len, output, output_len, ret_len, flags ); if (!key) return STATUS_INVALID_HANDLE; if (is_symmetric_key( key )) { if (flags & ~BCRYPT_BLOCK_PADDING) { FIXME( "flags %#lx not supported\n", flags ); return STATUS_NOT_IMPLEMENTED; } EnterCriticalSection( &key->u.s.cs ); ret = key_symmetric_decrypt( key, input, input_len, padding, iv, iv_len, output, output_len, ret_len, flags ); LeaveCriticalSection( &key->u.s.cs ); } else { if (flags & BCRYPT_PAD_NONE || flags & BCRYPT_PAD_OAEP) { FIXME( "flags %#lx not implemented\n", flags ); return STATUS_NOT_IMPLEMENTED; } if (!is_asymmetric_encryption_key( key )) return STATUS_NOT_SUPPORTED; params.key = key; params.input = input; params.input_len = input_len; params.output = output; params.output_len = output_len; params.ret_len = ret_len; ret = UNIX_CALL(key_asymmetric_decrypt, ¶ms); } return ret; } NTSTATUS WINAPI BCryptSetProperty( BCRYPT_HANDLE handle, const WCHAR *prop, UCHAR *value, ULONG size, ULONG flags ) { struct object *object = get_object( handle, 0 ); TRACE( "%p, %s, %p, %lu, %#lx\n", handle, debugstr_w(prop), value, size, flags ); if (!handle) return STATUS_INVALID_HANDLE; if (is_alg_pseudo_handle( handle )) return STATUS_ACCESS_DENIED; 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 %#lx\n", object->magic ); return STATUS_INVALID_HANDLE; } } #define HMAC_PAD_LEN 64 NTSTATUS WINAPI BCryptDeriveKeyCapi( BCRYPT_HASH_HANDLE handle, BCRYPT_ALG_HANDLE halg, UCHAR *key, ULONG keylen, ULONG flags ) { struct hash *hash = get_hash_object( handle ); UCHAR buf[MAX_HASH_OUTPUT_BYTES * 2]; NTSTATUS status; ULONG len; TRACE( "%p, %p, %p, %lu, %#lx\n", handle, halg, key, keylen, flags ); if (!hash) return STATUS_INVALID_HANDLE; if (!key || !keylen) return STATUS_INVALID_PARAMETER; if (keylen > builtin_algorithms[hash->alg_id].hash_length * 2) return STATUS_INVALID_PARAMETER; if (halg) { FIXME( "algorithm handle not supported\n" ); return STATUS_NOT_IMPLEMENTED; } if ((status = hash_finalize( hash, buf ))) return status; len = builtin_algorithms[hash->alg_id].hash_length; if (len < keylen) { UCHAR pad1[HMAC_PAD_LEN], pad2[HMAC_PAD_LEN]; ULONG i; for (i = 0; i < sizeof(pad1); i++) { pad1[i] = 0x36 ^ (i < len ? buf[i] : 0); pad2[i] = 0x5c ^ (i < len ? buf[i] : 0); } if ((status = hash_prepare( hash )) || (status = hash_update( &hash->inner, hash->alg_id, pad1, sizeof(pad1) )) || (status = hash_finalize( hash, buf ))) return status; if ((status = hash_prepare( hash )) || (status = hash_update( &hash->inner, hash->alg_id, pad2, sizeof(pad2) )) || (status = hash_finalize( hash, buf + len ))) return status; } memcpy( key, buf, keylen ); return STATUS_SUCCESS; } static NTSTATUS pbkdf2( struct hash *hash, UCHAR *pwd, ULONG pwd_len, UCHAR *salt, ULONG salt_len, ULONGLONG iterations, ULONG i, UCHAR *dst, ULONG hash_len ) { NTSTATUS status = STATUS_INVALID_PARAMETER; UCHAR bytes[4], *buf; ULONG j, k; if (!(buf = malloc( hash_len ))) return STATUS_NO_MEMORY; for (j = 0; j < iterations; j++) { if (j == 0) { /* use salt || INT(i) */ if ((status = hash_update( &hash->inner, hash->alg_id, salt, salt_len ))) { free( buf ); return status; } bytes[0] = (i >> 24) & 0xff; bytes[1] = (i >> 16) & 0xff; bytes[2] = (i >> 8) & 0xff; bytes[3] = i & 0xff; status = hash_update( &hash->inner, hash->alg_id, bytes, 4 ); } else status = hash_update( &hash->inner, hash->alg_id, buf, hash_len ); /* use U_j */ if (status) { free( buf ); return status; } if ((status = hash_finalize( hash, buf ))) { free( buf ); return status; } if (j == 0) memcpy( dst, buf, hash_len ); else for (k = 0; k < hash_len; k++) dst[k] ^= buf[k]; } free( buf ); return status; } static NTSTATUS derive_key_pbkdf2( struct algorithm *alg, UCHAR *pwd, ULONG pwd_len, UCHAR *salt, ULONG salt_len, ULONGLONG iterations, UCHAR *dk, ULONG dk_len ) { ULONG hash_len, block_count, bytes_left, i; struct hash *hash; UCHAR *partial; NTSTATUS status; hash_len = builtin_algorithms[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; if ((status = hash_create( alg, pwd, pwd_len, BCRYPT_HASH_REUSABLE_FLAG, &hash ))) return status; /* full blocks */ for (i = 1; i < block_count; i++) { if ((status = pbkdf2( hash, pwd, pwd_len, salt, salt_len, iterations, i, dk + ((i - 1) * hash_len), hash_len ))) { hash_destroy( hash ); return status; } } /* final partial block */ if (!(partial = malloc( hash_len ))) { hash_destroy( hash ); return STATUS_NO_MEMORY; } if ((status = pbkdf2( hash, pwd, pwd_len, salt, salt_len, iterations, block_count, partial, hash_len ))) { hash_destroy( hash ); free( partial ); return status; } memcpy( dk + ((block_count - 1) * hash_len), partial, bytes_left ); hash_destroy( hash ); free( partial ); return STATUS_SUCCESS; } 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 = get_alg_object( handle ); TRACE( "%p, %p, %lu, %p, %lu, %s, %p, %lu, %#lx\n", handle, pwd, pwd_len, salt, salt_len, wine_dbgstr_longlong(iterations), dk, dk_len, flags ); if (!alg) return STATUS_INVALID_HANDLE; return derive_key_pbkdf2( alg, pwd, pwd_len, salt, salt_len, iterations, dk, dk_len ); } NTSTATUS WINAPI BCryptSecretAgreement( BCRYPT_KEY_HANDLE privkey_handle, BCRYPT_KEY_HANDLE pubkey_handle, BCRYPT_SECRET_HANDLE *ret_handle, ULONG flags ) { struct key *privkey = get_key_object( privkey_handle ); struct key *pubkey = get_key_object( pubkey_handle ); struct secret *secret; NTSTATUS status; TRACE( "%p, %p, %p, %#lx\n", privkey_handle, pubkey_handle, ret_handle, flags ); if (!privkey || !pubkey) return STATUS_INVALID_HANDLE; if (!is_agreement_key( privkey ) || !is_agreement_key( pubkey )) return STATUS_NOT_SUPPORTED; if (!ret_handle) return STATUS_INVALID_PARAMETER; if (!(secret = calloc( 1, sizeof(*secret) ))) return STATUS_NO_MEMORY; secret->hdr.magic = MAGIC_SECRET; if ((status = key_duplicate( privkey, &secret->privkey ))) { free( secret ); return status; } if ((status = key_duplicate( pubkey, &secret->pubkey ))) { key_destroy( secret->privkey ); free( secret ); return status; } *ret_handle = secret; return STATUS_SUCCESS; } NTSTATUS WINAPI BCryptDestroySecret( BCRYPT_SECRET_HANDLE handle ) { struct secret *secret = get_secret_object( handle ); TRACE( "%p\n", handle ); if (!secret) return STATUS_INVALID_HANDLE; key_destroy( secret->privkey ); key_destroy( secret->pubkey ); destroy_object( &secret->hdr ); return STATUS_SUCCESS; } static void reverse_bytes( UCHAR *buf, ULONG len ) { ULONG i; for (i = 0; i < len / 2; i++) { UCHAR tmp = buf[i]; buf[i] = buf[len - i - 1]; buf[len - i - 1] = tmp; } } static NTSTATUS derive_key_raw( struct secret *secret, UCHAR *output, ULONG output_len, ULONG *ret_len ) { struct key_asymmetric_derive_key_params params; NTSTATUS status; params.privkey = secret->privkey; params.pubkey = secret->pubkey; params.output = output; params.output_len = output_len; params.ret_len = ret_len; if (!(status = UNIX_CALL( key_asymmetric_derive_key, ¶ms )) && output) reverse_bytes( output, *ret_len ); return status; } static BCRYPT_ALG_HANDLE hash_handle_from_desc( BCryptBufferDesc *desc ) { ULONG i; if (!desc) return BCRYPT_SHA1_ALG_HANDLE; for (i = 0; i < desc->cBuffers; i++) { if (desc->pBuffers[i].BufferType == KDF_HASH_ALGORITHM) { const WCHAR *str = desc->pBuffers[i].pvBuffer; if (!wcscmp( str, BCRYPT_SHA1_ALGORITHM )) return BCRYPT_SHA1_ALG_HANDLE; else if (!wcscmp( str, BCRYPT_SHA256_ALGORITHM )) return BCRYPT_SHA256_ALG_HANDLE; else if (!wcscmp( str, BCRYPT_SHA384_ALGORITHM )) return BCRYPT_SHA384_ALG_HANDLE; else if (!wcscmp( str, BCRYPT_SHA512_ALGORITHM )) return BCRYPT_SHA512_ALG_HANDLE; else { FIXME( "hash algorithm %s not supported\n", debugstr_w(str) ); return NULL; } } else FIXME( "buffer type %lu not supported\n", desc->pBuffers[i].BufferType ); } return BCRYPT_SHA1_ALG_HANDLE; } static NTSTATUS derive_key_hash( struct secret *secret, BCryptBufferDesc *desc, UCHAR *output, ULONG output_len, ULONG *ret_len ) { struct key_asymmetric_derive_key_params params; struct algorithm *alg = get_alg_object( hash_handle_from_desc(desc) ); ULONG hash_len, derived_key_len = secret->privkey->u.a.bitlen / 8; UCHAR hash_buf[MAX_HASH_OUTPUT_BYTES]; UCHAR *derived_key; NTSTATUS status; if (!alg) return STATUS_NOT_SUPPORTED; if (!(derived_key = malloc( derived_key_len ))) return STATUS_NO_MEMORY; params.privkey = secret->privkey; params.pubkey = secret->pubkey; params.output = derived_key; params.output_len = derived_key_len; params.ret_len = ret_len; if ((status = UNIX_CALL( key_asymmetric_derive_key, ¶ms ))) { free( derived_key ); return status; } hash_len = builtin_algorithms[alg->id].hash_length; assert( hash_len <= sizeof(hash_buf) ); if (!(status = hash_single( alg, NULL, 0, derived_key, *params.ret_len, hash_buf, hash_len ))) { if (!output) *ret_len = hash_len; else { *ret_len = min( hash_len, output_len ); memcpy( output, hash_buf, *ret_len ); } } free( derived_key ); return status; } NTSTATUS WINAPI BCryptDeriveKey( BCRYPT_SECRET_HANDLE handle, const WCHAR *kdf, BCryptBufferDesc *desc, UCHAR *output, ULONG output_len, ULONG *ret_len, ULONG flags ) { struct secret *secret = get_secret_object( handle ); TRACE( "%p, %s, %p, %p, %lu, %p, %#lx\n", secret, debugstr_w(kdf), desc, output, output_len, ret_len, flags ); if (!secret) return STATUS_INVALID_HANDLE; if (!kdf || !ret_len) return STATUS_INVALID_PARAMETER; if (!wcscmp(kdf, BCRYPT_KDF_RAW_SECRET)) { return derive_key_raw( secret, output, output_len, ret_len ); } else if (!wcscmp(kdf, BCRYPT_KDF_HASH)) { return derive_key_hash( secret, desc, output, output_len, ret_len ); } FIXME( "kdf %s not supportedi\n", debugstr_w(kdf) ); return STATUS_NOT_SUPPORTED; } BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved ) { switch (reason) { case DLL_PROCESS_ATTACH: DisableThreadLibraryCalls( hinst ); if (!__wine_init_unix_call()) { if (UNIX_CALL( process_attach, NULL)) __wine_unixlib_handle = 0; } break; case DLL_PROCESS_DETACH: if (reserved) break; if (__wine_unixlib_handle) UNIX_CALL( process_detach, NULL ); break; } return TRUE; }