/* * 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 "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 "bcrypt_internal.h" #include "wine/debug.h" #include "wine/heap.h" WINE_DEFAULT_DEBUG_CHANNEL(bcrypt); static HINSTANCE instance; static const struct key_funcs *key_funcs; 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 BCryptEnumContextFunctions( ULONG table, const WCHAR *ctx, ULONG iface, ULONG *buflen, CRYPT_CONTEXT_FUNCTIONS **buffer ) { FIXME( "%u, %s, %u, %p, %p\n", table, debugstr_w(ctx), iface, buflen, buffer ); return STATUS_NOT_IMPLEMENTED; } void WINAPI BCryptFreeBuffer( void *buffer ) { FIXME( "%p\n", buffer ); } 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; } #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_AES_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_ECDH_P256_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 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, count = 0; TRACE( "%08x, %p, %p, %08x\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 = heap_alloc( count * sizeof(*list) ))) return STATUS_NO_MEMORY; for (i = 0; i < ARRAY_SIZE( builtin_algorithms ); i++) { if (!match_operation_type( type, builtin_algorithms[i].class )) continue; list[i].pszName = (WCHAR *)builtin_algorithms[i].name; list[i].dwClass = builtin_algorithms[i].class; list[i].dwFlags = 0; } *ret_count = count; *ret_list = list; return STATUS_SUCCESS; } 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 | BCRYPT_HASH_REUSABLE_FLAG; struct algorithm *alg; enum alg_id alg_id; ULONG i; 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; } 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 = heap_alloc( sizeof(*alg) ))) return STATUS_NO_MEMORY; alg->hdr.magic = MAGIC_ALG; alg->id = alg_id; alg->mode = MODE_ID_CBC; alg->flags = flags; *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 (!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_aes_property( enum mode_id 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 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, (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 != 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; } static NTSTATUS get_rsa_property( enum mode_id 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 mode_id 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_AES: return get_aes_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_AES: if (!wcscmp( prop, BCRYPT_CHAINING_MODE )) { if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_ECB )) { alg->mode = MODE_ID_ECB; return STATUS_SUCCESS; } else if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_CBC )) { alg->mode = MODE_ID_CBC; return STATUS_SUCCESS; } else if (!wcscmp( (WCHAR *)value, BCRYPT_CHAIN_MODE_GCM )) { alg->mode = MODE_ID_GCM; 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; 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 (!wcscmp( 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 = 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, builtin_algorithms[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->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 (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 = builtin_algorithms[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 ); } static NTSTATUS key_asymmetric_create( struct key **ret_key, struct algorithm *alg, ULONG bitlen, const UCHAR *pubkey, ULONG pubkey_len ) { struct key *key; NTSTATUS status; if (!key_funcs) { ERR( "no encryption support\n" ); return STATUS_NOT_IMPLEMENTED; } if (!(key = heap_alloc_zero( sizeof(*key) ))) return STATUS_NO_MEMORY; key->hdr.magic = MAGIC_KEY; key->alg_id = alg->id; key->u.a.bitlen = bitlen; if (pubkey_len) { if (!(key->u.a.pubkey = heap_alloc( pubkey_len ))) { heap_free( key ); return STATUS_NO_MEMORY; } memcpy( key->u.a.pubkey, pubkey, pubkey_len ); key->u.a.pubkey_len = pubkey_len; } if ((status = key_funcs->key_asymmetric_init( key ))) { heap_free( key->u.a.pubkey ); heap_free( key ); return status; } *ret_key = key; return STATUS_SUCCESS; } static BOOL key_is_symmetric( struct key *key ) { return builtin_algorithms[key->alg_id].class == BCRYPT_CIPHER_INTERFACE; } static BOOL is_zero_vector( const UCHAR *vector, ULONG len ) { ULONG i; if (!vector) return FALSE; for (i = 0; i < len; i++) if (vector[i]) return FALSE; return TRUE; } 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 needs_reset = (!is_zero_vector( vector, vector_len ) || !is_equal_vector( key->u.s.vector, key->u.s.vector_len, vector, vector_len )); heap_free( key->u.s.vector ); key->u.s.vector = NULL; key->u.s.vector_len = 0; if (vector) { if (!(key->u.s.vector = heap_alloc( vector_len ))) return STATUS_NO_MEMORY; memcpy( key->u.s.vector, vector, vector_len ); key->u.s.vector_len = vector_len; } if (needs_reset) key_funcs->key_symmetric_vector_reset( key ); return STATUS_SUCCESS; } 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 (!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 %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 (!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 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 (!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_RSAPUBLIC_BLOB ) || !wcscmp( type, BCRYPT_DSA_PUBLIC_BLOB ) || !wcscmp( type, BCRYPT_ECCPUBLIC_BLOB ) || !wcscmp( type, LEGACY_DSA_V2_PUBLIC_BLOB )) { *size = key->u.a.pubkey_len; if (output_len < key->u.a.pubkey_len) return STATUS_SUCCESS; if (output) memcpy( output, key->u.a.pubkey, key->u.a.pubkey_len ); return STATUS_SUCCESS; } else if (!wcscmp( type, BCRYPT_ECCPRIVATE_BLOB )) { return key_funcs->key_export_ecc( key, output, output_len, size ); } else if (!wcscmp( type, LEGACY_DSA_V2_PRIVATE_BLOB )) { return key_funcs->key_export_dsa_capi( 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_vector( 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_funcs->key_symmetric_set_auth_data( key, auth_info->pbAuthData, auth_info->cbAuthData ))) return status; if ((status = key_funcs->key_symmetric_encrypt( key, input, input_len, output, output_len ))) return status; return key_funcs->key_symmetric_get_tag( key, auth_info->pbTag, auth_info->cbTag ); } *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; if ((status = key_symmetric_set_vector( key, iv, iv_len ))) return status; src = input; dst = output; while (bytes_left >= key->u.s.block_size) { if ((status = key_funcs->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_vector( 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_funcs->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_vector( 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_funcs->key_symmetric_set_auth_data( key, auth_info->pbAuthData, auth_info->cbAuthData ))) return status; if ((status = key_funcs->key_symmetric_decrypt( key, input, input_len, output, output_len ))) return status; if ((status = key_funcs->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; } *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; if ((status = key_symmetric_set_vector( key, iv, iv_len ))) return status; src = input; dst = output; while (bytes_left >= key->u.s.block_size) { if ((status = key_funcs->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_vector( 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_funcs->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 (!wcscmp( type, BCRYPT_ECCPUBLIC_BLOB )) { BCRYPT_ECCKEY_BLOB *ecc_blob = (BCRYPT_ECCKEY_BLOB *)input; DWORD key_size, magic, size; 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_INVALID_PARAMETER; if (ecc_blob->cbKey != key_size || input_len < sizeof(*ecc_blob) + ecc_blob->cbKey * 2) return STATUS_INVALID_PARAMETER; size = sizeof(*ecc_blob) + ecc_blob->cbKey * 2; return key_asymmetric_create( (struct key **)ret_key, alg, key_size * 8, (BYTE *)ecc_blob, size ); } 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_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( &key, alg, key_size * 8, NULL, 0 ))) return status; if ((status = key_funcs->key_import_ecc( key, input, input_len ))) { BCryptDestroyKey( key ); return status; } *ret_key = key; return STATUS_SUCCESS; } else if (!wcscmp( 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 && 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; return key_asymmetric_create( (struct key **)ret_key, alg, rsa_blob->BitLength, (BYTE *)rsa_blob, size ); } else if (!wcscmp( type, BCRYPT_DSA_PUBLIC_BLOB )) { BCRYPT_DSA_KEY_BLOB *dsa_blob = (BCRYPT_DSA_KEY_BLOB *)input; ULONG size; 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; size = sizeof(*dsa_blob) + dsa_blob->cbKey * 3; return key_asymmetric_create( (struct key **)ret_key, alg, dsa_blob->cbKey * 8, (BYTE *)dsa_blob, size ); } 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( &key, alg, pubkey->bitlen, NULL, 0 ))) return status; if ((status = key_funcs->key_import_dsa_capi( key, input, input_len ))) { BCryptDestroyKey( key ); return status; } *ret_key = key; return STATUS_SUCCESS; } else if (!wcscmp( type, LEGACY_DSA_V2_PUBLIC_BLOB )) /* not supported on native */ { BLOBHEADER *hdr = (BLOBHEADER *)input; DSSPUBKEY *pubkey; ULONG size; 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( &key, alg, pubkey->bitlen, (BYTE *)hdr, size ))) return status; key->u.a.flags |= KEY_FLAG_LEGACY_DSA_V2; *ret_key = key; return STATUS_SUCCESS; } FIXME( "unsupported key type %s\n", debugstr_w(type) ); return STATUS_NOT_SUPPORTED; } 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; } 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; ULONG block_size; 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_funcs) { ERR( "no encryption support\n" ); return STATUS_NOT_IMPLEMENTED; } if (!(block_size = get_block_size( alg ))) return STATUS_INVALID_PARAMETER; if (!(key = heap_alloc_zero( sizeof(*key) ))) return STATUS_NO_MEMORY; key->hdr.magic = MAGIC_KEY; key->alg_id = alg->id; key->u.s.mode = alg->mode; key->u.s.block_size = block_size; if (!(key->u.s.secret = heap_alloc( secret_len ))) { heap_free( key ); return STATUS_NO_MEMORY; } memcpy( key->u.s.secret, secret, secret_len ); key->u.s.secret_len = secret_len; if ((status = key_funcs->key_symmetric_init( key ))) { heap_free( key->u.s.secret ); 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 (!(status = key_asymmetric_create( &key, alg, key_len, NULL, 0 ))) *handle = key; return status; } 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_funcs->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 BCryptSignHash( BCRYPT_KEY_HANDLE handle, void *padding, UCHAR *input, ULONG input_len, UCHAR *output, ULONG output_len, ULONG *ret_len, ULONG flags ) { struct key *key = handle; TRACE( "%p, %p, %p, %u, %p, %u, %p, %08x\n", handle, padding, input, input_len, output, output_len, ret_len, flags ); if (!key || key->hdr.magic != MAGIC_KEY) return STATUS_INVALID_HANDLE; if (key_is_symmetric( key )) { FIXME( "signing with symmetric keys not yet supported\n" ); return STATUS_NOT_IMPLEMENTED; } return key_funcs->key_asymmetric_sign( key, padding, input, input_len, output, output_len, ret_len, flags ); } 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_funcs->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; if (key_is_symmetric( key )) { key_funcs->key_symmetric_destroy( key ); heap_free( key->u.s.vector ); heap_free( key->u.s.secret ); } else { key_funcs->key_asymmetric_destroy( key ); heap_free( key->u.a.pubkey ); } key->hdr.magic = 0; heap_free( 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 = 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_funcs->key_set_property( key, prop, value, size, flags ); } default: WARN( "unknown magic %08x\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 = handle; UCHAR buf[MAX_HASH_OUTPUT_BYTES * 2]; NTSTATUS status; ULONG len; TRACE( "%p, %p, %p, %u, %08x\n", handle, halg, key, keylen, flags ); if (!key || !keylen) return STATUS_INVALID_PARAMETER; if (!hash || hash->hdr.magic != MAGIC_HASH) return STATUS_INVALID_HANDLE; 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; } len = builtin_algorithms[hash->alg_id].hash_length; if ((status = BCryptFinishHash( handle, buf, len, 0 ))) return status; 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 = prepare_hash( hash )) || (status = BCryptHashData( handle, pad1, sizeof(pad1), 0 )) || (status = BCryptFinishHash( handle, buf, len, 0 ))) return status; if ((status = prepare_hash( hash )) || (status = BCryptHashData( handle, pad2, sizeof(pad2), 0 )) || (status = BCryptFinishHash( handle, buf + len, len, 0 ))) return status; } memcpy( key, buf, keylen ); return STATUS_SUCCESS; } static NTSTATUS pbkdf2( BCRYPT_HASH_HANDLE handle, 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 = heap_alloc( hash_len ))) return STATUS_NO_MEMORY; for (j = 0; j < iterations; j++) { if (j == 0) { /* use salt || INT(i) */ status = BCryptHashData( handle, salt, salt_len, 0 ); if (status != STATUS_SUCCESS) { heap_free( buf ); return status; } 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) { heap_free( buf ); return status; } status = BCryptFinishHash( handle, buf, hash_len, 0 ); if (status != STATUS_SUCCESS) { heap_free( buf ); return status; } if (j == 0) memcpy( dst, buf, hash_len ); else for (k = 0; k < hash_len; k++) dst[k] ^= buf[k]; } 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; BCRYPT_HASH_HANDLE hash; 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 = 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; status = BCryptCreateHash( handle, &hash, NULL, 0, pwd, pwd_len, BCRYPT_HASH_REUSABLE_FLAG ); if (status != STATUS_SUCCESS) return status; /* full blocks */ for (i = 1; i < block_count; i++) { status = pbkdf2( hash, pwd, pwd_len, salt, salt_len, iterations, i, dk + ((i - 1) * hash_len), hash_len ); if (status != STATUS_SUCCESS) { BCryptDestroyHash( hash ); return status; } } /* final partial block */ if (!(partial = heap_alloc( hash_len ))) { BCryptDestroyHash( hash ); return STATUS_NO_MEMORY; } status = pbkdf2( hash, pwd, pwd_len, salt, salt_len, iterations, block_count, partial, hash_len ); if (status != STATUS_SUCCESS) { BCryptDestroyHash( hash ); heap_free( partial ); return status; } memcpy( dk + ((block_count - 1) * hash_len), partial, bytes_left ); BCryptDestroyHash( hash ); heap_free( partial ); return STATUS_SUCCESS; } NTSTATUS WINAPI BCryptSecretAgreement(BCRYPT_KEY_HANDLE privatekey, BCRYPT_KEY_HANDLE publickey, BCRYPT_SECRET_HANDLE *handle, ULONG flags) { struct key *privkey = privatekey; struct key *pubkey = publickey; struct secret *secret; FIXME( "%p, %p, %p, %08x\n", privatekey, publickey, handle, flags ); if (!privkey || privkey->hdr.magic != MAGIC_KEY) return STATUS_INVALID_HANDLE; if (!pubkey || pubkey->hdr.magic != MAGIC_KEY) return STATUS_INVALID_HANDLE; if (!handle) return STATUS_INVALID_PARAMETER; if (!(secret = heap_alloc_zero( sizeof(*secret) ))) return STATUS_NO_MEMORY; secret->hdr.magic = MAGIC_SECRET; *handle = secret; return STATUS_SUCCESS; } NTSTATUS WINAPI BCryptDestroySecret(BCRYPT_SECRET_HANDLE handle) { struct secret *secret = handle; FIXME( "%p\n", handle ); if (!secret || secret->hdr.magic != MAGIC_SECRET) return STATUS_INVALID_HANDLE; secret->hdr.magic = 0; heap_free( secret ); return STATUS_SUCCESS; } NTSTATUS WINAPI BCryptDeriveKey(BCRYPT_SECRET_HANDLE handle, LPCWSTR kdf, BCryptBufferDesc *parameter, PUCHAR derived, ULONG derived_size, ULONG *result, ULONG flags) { struct secret *secret = handle; FIXME( "%p, %s, %p, %p, %d, %p, %08x\n", secret, debugstr_w(kdf), parameter, derived, derived_size, result, flags ); if (!secret || secret->hdr.magic != MAGIC_SECRET) return STATUS_INVALID_HANDLE; if (!kdf) return STATUS_INVALID_PARAMETER; return STATUS_INTERNAL_ERROR; } BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved ) { switch (reason) { case DLL_PROCESS_ATTACH: instance = hinst; DisableThreadLibraryCalls( hinst ); __wine_init_unix_lib( hinst, reason, NULL, &key_funcs ); break; case DLL_PROCESS_DETACH: if (reserved) break; __wine_init_unix_lib( hinst, reason, NULL, NULL ); break; } return TRUE; }