/* * Copyright 2009 Henri Verbeet for CodeWeavers * Copyright 2018 Hans Leidekker 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 * */ #if 0 #pragma makedep unix #endif #include "config.h" #include "wine/port.h" #ifdef HAVE_GNUTLS_CIPHER_INIT #include #include #include #include #include #include "ntstatus.h" #define WIN32_NO_STATUS #include "windef.h" #include "winbase.h" #include "winternl.h" #include "ntsecapi.h" #include "wincrypt.h" #include "bcrypt.h" #include "bcrypt_internal.h" #include "wine/debug.h" #include "wine/unicode.h" WINE_DEFAULT_DEBUG_CHANNEL(bcrypt); WINE_DECLARE_DEBUG_CHANNEL(winediag); #if GNUTLS_VERSION_MAJOR < 3 #define GNUTLS_CIPHER_AES_192_CBC 92 #define GNUTLS_CIPHER_AES_128_GCM 93 #define GNUTLS_CIPHER_AES_256_GCM 94 #define GNUTLS_PK_ECC 4 #define GNUTLS_CURVE_TO_BITS(curve) (unsigned int)(((unsigned int)1<<31)|((unsigned int)(curve))) typedef enum { GNUTLS_ECC_CURVE_INVALID, GNUTLS_ECC_CURVE_SECP224R1, GNUTLS_ECC_CURVE_SECP256R1, GNUTLS_ECC_CURVE_SECP384R1, GNUTLS_ECC_CURVE_SECP521R1, } gnutls_ecc_curve_t; #endif union key_data { gnutls_cipher_hd_t cipher; gnutls_privkey_t privkey; }; C_ASSERT( sizeof(union key_data) <= sizeof(((struct key *)0)->private) ); static union key_data *key_data( struct key *key ) { return (union key_data *)key->private; } /* Not present in gnutls version < 3.0 */ static int (*pgnutls_cipher_tag)(gnutls_cipher_hd_t, void *, size_t); static int (*pgnutls_cipher_add_auth)(gnutls_cipher_hd_t, const void *, size_t); static gnutls_sign_algorithm_t (*pgnutls_pk_to_sign)(gnutls_pk_algorithm_t, gnutls_digest_algorithm_t); static int (*pgnutls_pubkey_import_ecc_raw)(gnutls_pubkey_t, gnutls_ecc_curve_t, const gnutls_datum_t *, const gnutls_datum_t *); static int (*pgnutls_privkey_import_ecc_raw)(gnutls_privkey_t, gnutls_ecc_curve_t, const gnutls_datum_t *, const gnutls_datum_t *, const gnutls_datum_t *); static int (*pgnutls_pubkey_verify_hash2)(gnutls_pubkey_t, gnutls_sign_algorithm_t, unsigned int, const gnutls_datum_t *, const gnutls_datum_t *); /* Not present in gnutls version < 2.11.0 */ static int (*pgnutls_pubkey_import_rsa_raw)(gnutls_pubkey_t, const gnutls_datum_t *, const gnutls_datum_t *); /* Not present in gnutls version < 2.12.0 */ static int (*pgnutls_pubkey_import_dsa_raw)(gnutls_pubkey_t, const gnutls_datum_t *, const gnutls_datum_t *, const gnutls_datum_t *, const gnutls_datum_t *); /* Not present in gnutls version < 3.3.0 */ static int (*pgnutls_privkey_export_ecc_raw)(gnutls_privkey_t, gnutls_ecc_curve_t *, gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *); static int (*pgnutls_privkey_export_rsa_raw)(gnutls_privkey_t, gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *); static int (*pgnutls_privkey_export_dsa_raw)(gnutls_privkey_t, gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *); static int (*pgnutls_privkey_generate)(gnutls_privkey_t, gnutls_pk_algorithm_t, unsigned int, unsigned int); static int (*pgnutls_privkey_import_rsa_raw)(gnutls_privkey_t, const gnutls_datum_t *, const gnutls_datum_t *, const gnutls_datum_t *, const gnutls_datum_t *, const gnutls_datum_t *, const gnutls_datum_t *, const gnutls_datum_t *, const gnutls_datum_t *); static int (*pgnutls_privkey_decrypt_data)(gnutls_privkey_t, unsigned int flags, const gnutls_datum_t *, gnutls_datum_t *); /* Not present in gnutls version < 3.6.0 */ static int (*pgnutls_decode_rs_value)(const gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *); static void *libgnutls_handle; #define MAKE_FUNCPTR(f) static typeof(f) * p##f MAKE_FUNCPTR(gnutls_cipher_decrypt2); MAKE_FUNCPTR(gnutls_cipher_deinit); MAKE_FUNCPTR(gnutls_cipher_encrypt2); MAKE_FUNCPTR(gnutls_cipher_init); MAKE_FUNCPTR(gnutls_global_deinit); MAKE_FUNCPTR(gnutls_global_init); MAKE_FUNCPTR(gnutls_global_set_log_function); MAKE_FUNCPTR(gnutls_global_set_log_level); MAKE_FUNCPTR(gnutls_perror); MAKE_FUNCPTR(gnutls_privkey_decrypt_data); MAKE_FUNCPTR(gnutls_privkey_deinit); MAKE_FUNCPTR(gnutls_privkey_import_dsa_raw); MAKE_FUNCPTR(gnutls_privkey_init); MAKE_FUNCPTR(gnutls_privkey_sign_hash); MAKE_FUNCPTR(gnutls_pubkey_deinit); MAKE_FUNCPTR(gnutls_pubkey_init); #undef MAKE_FUNCPTR static int compat_gnutls_cipher_tag(gnutls_cipher_hd_t handle, void *tag, size_t tag_size) { return GNUTLS_E_UNKNOWN_CIPHER_TYPE; } static int compat_gnutls_cipher_add_auth(gnutls_cipher_hd_t handle, const void *ptext, size_t ptext_size) { return GNUTLS_E_UNKNOWN_CIPHER_TYPE; } static int compat_gnutls_pubkey_import_ecc_raw(gnutls_pubkey_t key, gnutls_ecc_curve_t curve, const gnutls_datum_t *x, const gnutls_datum_t *y) { return GNUTLS_E_UNKNOWN_PK_ALGORITHM; } static int compat_gnutls_privkey_export_rsa_raw(gnutls_privkey_t key, gnutls_datum_t *m, gnutls_datum_t *e, gnutls_datum_t *d, gnutls_datum_t *p, gnutls_datum_t *q, gnutls_datum_t *u, gnutls_datum_t *e1, gnutls_datum_t *e2) { return GNUTLS_E_UNKNOWN_PK_ALGORITHM; } static int compat_gnutls_privkey_export_ecc_raw(gnutls_privkey_t key, gnutls_ecc_curve_t *curve, gnutls_datum_t *x, gnutls_datum_t *y, gnutls_datum_t *k) { return GNUTLS_E_UNKNOWN_PK_ALGORITHM; } static int compat_gnutls_privkey_import_ecc_raw(gnutls_privkey_t key, gnutls_ecc_curve_t curve, const gnutls_datum_t *x, const gnutls_datum_t *y, const gnutls_datum_t *k) { return GNUTLS_E_UNKNOWN_PK_ALGORITHM; } static int compat_gnutls_privkey_export_dsa_raw(gnutls_privkey_t key, gnutls_datum_t *p, gnutls_datum_t *q, gnutls_datum_t *g, gnutls_datum_t *y, gnutls_datum_t *x) { return GNUTLS_E_UNKNOWN_PK_ALGORITHM; } static gnutls_sign_algorithm_t compat_gnutls_pk_to_sign(gnutls_pk_algorithm_t pk, gnutls_digest_algorithm_t hash) { return GNUTLS_SIGN_UNKNOWN; } static int compat_gnutls_pubkey_verify_hash2(gnutls_pubkey_t key, gnutls_sign_algorithm_t algo, unsigned int flags, const gnutls_datum_t *hash, const gnutls_datum_t *signature) { return GNUTLS_E_UNKNOWN_PK_ALGORITHM; } static int compat_gnutls_pubkey_import_rsa_raw(gnutls_pubkey_t key, const gnutls_datum_t *m, const gnutls_datum_t *e) { return GNUTLS_E_UNKNOWN_PK_ALGORITHM; } static int compat_gnutls_pubkey_import_dsa_raw(gnutls_pubkey_t key, const gnutls_datum_t *p, const gnutls_datum_t *q, const gnutls_datum_t *g, const gnutls_datum_t *y) { return GNUTLS_E_UNKNOWN_PK_ALGORITHM; } static int compat_gnutls_privkey_generate(gnutls_privkey_t key, gnutls_pk_algorithm_t algo, unsigned int bits, unsigned int flags) { return GNUTLS_E_UNKNOWN_PK_ALGORITHM; } static int compat_gnutls_decode_rs_value(const gnutls_datum_t * sig_value, gnutls_datum_t * r, gnutls_datum_t * s) { return GNUTLS_E_INTERNAL_ERROR; } static int compat_gnutls_privkey_import_rsa_raw(gnutls_privkey_t key, const gnutls_datum_t *m, const gnutls_datum_t *e, const gnutls_datum_t *d, const gnutls_datum_t *p, const gnutls_datum_t *q, const gnutls_datum_t *u, const gnutls_datum_t *e1, const gnutls_datum_t *e2) { return GNUTLS_E_UNKNOWN_PK_ALGORITHM; } static int compat_gnutls_privkey_decrypt_data(gnutls_privkey_t key, unsigned int flags, const gnutls_datum_t *cipher_text, gnutls_datum_t *plain_text) { return GNUTLS_E_UNKNOWN_PK_ALGORITHM; } static void gnutls_log( int level, const char *msg ) { TRACE( "<%d> %s", level, msg ); } static BOOL gnutls_initialize(void) { const char *env_str; int ret; if ((env_str = getenv("GNUTLS_SYSTEM_PRIORITY_FILE"))) { WARN("GNUTLS_SYSTEM_PRIORITY_FILE is %s.\n", debugstr_a(env_str)); } else { WARN("Setting GNUTLS_SYSTEM_PRIORITY_FILE to \"/dev/null\".\n"); setenv("GNUTLS_SYSTEM_PRIORITY_FILE", "/dev/null", 0); } if (!(libgnutls_handle = dlopen( SONAME_LIBGNUTLS, RTLD_NOW ))) { ERR_(winediag)( "failed to load libgnutls, no support for encryption\n" ); return FALSE; } #define LOAD_FUNCPTR(f) \ if (!(p##f = dlsym( libgnutls_handle, #f ))) \ { \ ERR( "failed to load %s\n", #f ); \ goto fail; \ } LOAD_FUNCPTR(gnutls_cipher_decrypt2) LOAD_FUNCPTR(gnutls_cipher_deinit) LOAD_FUNCPTR(gnutls_cipher_encrypt2) LOAD_FUNCPTR(gnutls_cipher_init) LOAD_FUNCPTR(gnutls_global_deinit) LOAD_FUNCPTR(gnutls_global_init) LOAD_FUNCPTR(gnutls_global_set_log_function) LOAD_FUNCPTR(gnutls_global_set_log_level) LOAD_FUNCPTR(gnutls_perror) LOAD_FUNCPTR(gnutls_privkey_deinit); LOAD_FUNCPTR(gnutls_privkey_import_dsa_raw); LOAD_FUNCPTR(gnutls_privkey_init); LOAD_FUNCPTR(gnutls_privkey_sign_hash); LOAD_FUNCPTR(gnutls_pubkey_deinit); LOAD_FUNCPTR(gnutls_pubkey_init); #undef LOAD_FUNCPTR if (!(pgnutls_cipher_tag = dlsym( libgnutls_handle, "gnutls_cipher_tag" ))) { WARN("gnutls_cipher_tag not found\n"); pgnutls_cipher_tag = compat_gnutls_cipher_tag; } if (!(pgnutls_cipher_add_auth = dlsym( libgnutls_handle, "gnutls_cipher_add_auth" ))) { WARN("gnutls_cipher_add_auth not found\n"); pgnutls_cipher_add_auth = compat_gnutls_cipher_add_auth; } if ((ret = pgnutls_global_init()) != GNUTLS_E_SUCCESS) { pgnutls_perror( ret ); goto fail; } if (!(pgnutls_pubkey_import_ecc_raw = dlsym( libgnutls_handle, "gnutls_pubkey_import_ecc_raw" ))) { WARN("gnutls_pubkey_import_ecc_raw not found\n"); pgnutls_pubkey_import_ecc_raw = compat_gnutls_pubkey_import_ecc_raw; } if (!(pgnutls_privkey_export_rsa_raw = dlsym( libgnutls_handle, "gnutls_privkey_export_rsa_raw" ))) { WARN("gnutls_privkey_export_rsa_raw not found\n"); pgnutls_privkey_export_rsa_raw = compat_gnutls_privkey_export_rsa_raw; } if (!(pgnutls_privkey_export_ecc_raw = dlsym( libgnutls_handle, "gnutls_privkey_export_ecc_raw" ))) { WARN("gnutls_privkey_export_ecc_raw not found\n"); pgnutls_privkey_export_ecc_raw = compat_gnutls_privkey_export_ecc_raw; } if (!(pgnutls_privkey_import_ecc_raw = dlsym( libgnutls_handle, "gnutls_privkey_import_ecc_raw" ))) { WARN("gnutls_privkey_import_ecc_raw not found\n"); pgnutls_privkey_import_ecc_raw = compat_gnutls_privkey_import_ecc_raw; } if (!(pgnutls_privkey_export_dsa_raw = dlsym( libgnutls_handle, "gnutls_privkey_export_dsa_raw" ))) { WARN("gnutls_privkey_export_dsa_raw not found\n"); pgnutls_privkey_export_dsa_raw = compat_gnutls_privkey_export_dsa_raw; } if (!(pgnutls_pk_to_sign = dlsym( libgnutls_handle, "gnutls_pk_to_sign" ))) { WARN("gnutls_pk_to_sign not found\n"); pgnutls_pk_to_sign = compat_gnutls_pk_to_sign; } if (!(pgnutls_pubkey_verify_hash2 = dlsym( libgnutls_handle, "gnutls_pubkey_verify_hash2" ))) { WARN("gnutls_pubkey_verify_hash2 not found\n"); pgnutls_pubkey_verify_hash2 = compat_gnutls_pubkey_verify_hash2; } if (!(pgnutls_pubkey_import_rsa_raw = dlsym( libgnutls_handle, "gnutls_pubkey_import_rsa_raw" ))) { WARN("gnutls_pubkey_import_rsa_raw not found\n"); pgnutls_pubkey_import_rsa_raw = compat_gnutls_pubkey_import_rsa_raw; } if (!(pgnutls_pubkey_import_dsa_raw = dlsym( libgnutls_handle, "gnutls_pubkey_import_dsa_raw" ))) { WARN("gnutls_pubkey_import_dsa_raw not found\n"); pgnutls_pubkey_import_dsa_raw = compat_gnutls_pubkey_import_dsa_raw; } if (!(pgnutls_privkey_generate = dlsym( libgnutls_handle, "gnutls_privkey_generate" ))) { WARN("gnutls_privkey_generate not found\n"); pgnutls_privkey_generate = compat_gnutls_privkey_generate; } if (!(pgnutls_decode_rs_value = dlsym( libgnutls_handle, "gnutls_decode_rs_value" ))) { WARN("gnutls_decode_rs_value not found\n"); pgnutls_decode_rs_value = compat_gnutls_decode_rs_value; } if (!(pgnutls_privkey_import_rsa_raw = dlsym( libgnutls_handle, "gnutls_privkey_import_rsa_raw" ))) { WARN("gnutls_privkey_import_rsa_raw not found\n"); pgnutls_privkey_import_rsa_raw = compat_gnutls_privkey_import_rsa_raw; } if (!(pgnutls_privkey_decrypt_data = dlsym( libgnutls_handle, "gnutls_privkey_decrypt_data" ))) { WARN("gnutls_privkey_decrypt_data not found\n"); pgnutls_privkey_decrypt_data = compat_gnutls_privkey_decrypt_data; } if (TRACE_ON( bcrypt )) { pgnutls_global_set_log_level( 4 ); pgnutls_global_set_log_function( gnutls_log ); } return TRUE; fail: dlclose( libgnutls_handle ); libgnutls_handle = NULL; return FALSE; } static void gnutls_uninitialize(void) { pgnutls_global_deinit(); dlclose( libgnutls_handle ); libgnutls_handle = NULL; } struct buffer { BYTE *buffer; DWORD length; DWORD pos; BOOL error; }; static void buffer_init( struct buffer *buffer ) { buffer->buffer = NULL; buffer->length = 0; buffer->pos = 0; buffer->error = FALSE; } static void buffer_free( struct buffer *buffer ) { free( buffer->buffer ); } static void buffer_append( struct buffer *buffer, BYTE *data, DWORD len ) { if (!len) return; if (buffer->pos + len > buffer->length) { DWORD new_length = max( max( buffer->pos + len, buffer->length * 2 ), 64 ); BYTE *new_buffer; if (!(new_buffer = realloc( buffer->buffer, new_length ))) { ERR( "out of memory\n" ); buffer->error = TRUE; return; } buffer->buffer = new_buffer; buffer->length = new_length; } memcpy( &buffer->buffer[buffer->pos], data, len ); buffer->pos += len; } static void buffer_append_byte( struct buffer *buffer, BYTE value ) { buffer_append( buffer, &value, sizeof(value) ); } static void buffer_append_asn1_length( struct buffer *buffer, DWORD length ) { DWORD num_bytes; if (length < 128) { buffer_append_byte( buffer, length ); return; } if (length <= 0xff) num_bytes = 1; else if (length <= 0xffff) num_bytes = 2; else if (length <= 0xffffff) num_bytes = 3; else num_bytes = 4; buffer_append_byte( buffer, 0x80 | num_bytes ); while (num_bytes--) buffer_append_byte( buffer, length >> (num_bytes * 8) ); } static void buffer_append_asn1_integer( struct buffer *buffer, BYTE *data, DWORD len ) { DWORD leading_zero = (*data & 0x80) != 0; buffer_append_byte( buffer, 0x02 ); /* tag */ buffer_append_asn1_length( buffer, len + leading_zero ); if (leading_zero) buffer_append_byte( buffer, 0 ); buffer_append( buffer, data, len ); } static void buffer_append_asn1_sequence( struct buffer *buffer, struct buffer *content ) { if (content->error) { buffer->error = TRUE; return; } buffer_append_byte( buffer, 0x30 ); /* tag */ buffer_append_asn1_length( buffer, content->pos ); buffer_append( buffer, content->buffer, content->pos ); } static void buffer_append_asn1_r_s( struct buffer *buffer, BYTE *r, DWORD r_len, BYTE *s, DWORD s_len ) { struct buffer value; buffer_init( &value ); buffer_append_asn1_integer( &value, r, r_len ); buffer_append_asn1_integer( &value, s, s_len ); buffer_append_asn1_sequence( buffer, &value ); buffer_free( &value ); } static NTSTATUS CDECL key_set_property( struct key *key, const WCHAR *prop, UCHAR *value, ULONG size, ULONG flags ) { if (!strcmpW( prop, BCRYPT_CHAINING_MODE )) { if (!strcmpW( (WCHAR *)value, BCRYPT_CHAIN_MODE_ECB )) { key->u.s.mode = MODE_ID_ECB; return STATUS_SUCCESS; } else if (!strcmpW( (WCHAR *)value, BCRYPT_CHAIN_MODE_CBC )) { key->u.s.mode = MODE_ID_CBC; return STATUS_SUCCESS; } else if (!strcmpW( (WCHAR *)value, BCRYPT_CHAIN_MODE_GCM )) { key->u.s.mode = MODE_ID_GCM; return STATUS_SUCCESS; } else { FIXME( "unsupported mode %s\n", debugstr_w((WCHAR *)value) ); return STATUS_NOT_IMPLEMENTED; } } FIXME( "unsupported key property %s\n", debugstr_w(prop) ); return STATUS_NOT_IMPLEMENTED; } static NTSTATUS CDECL key_symmetric_init( struct key *key ) { if (!libgnutls_handle) return STATUS_INTERNAL_ERROR; switch (key->alg_id) { case ALG_ID_3DES: case ALG_ID_AES: return STATUS_SUCCESS; default: FIXME( "algorithm %u not supported\n", key->alg_id ); return STATUS_NOT_SUPPORTED; } } static gnutls_cipher_algorithm_t get_gnutls_cipher( const struct key *key ) { switch (key->alg_id) { case ALG_ID_3DES: WARN( "handle block size\n" ); switch (key->u.s.mode) { case MODE_ID_CBC: return GNUTLS_CIPHER_3DES_CBC; default: break; } FIXME( "3DES mode %u with key length %u not supported\n", key->u.s.mode, key->u.s.secret_len ); return GNUTLS_CIPHER_UNKNOWN; case ALG_ID_AES: WARN( "handle block size\n" ); switch (key->u.s.mode) { case MODE_ID_GCM: if (key->u.s.secret_len == 16) return GNUTLS_CIPHER_AES_128_GCM; if (key->u.s.secret_len == 32) return GNUTLS_CIPHER_AES_256_GCM; break; case MODE_ID_ECB: /* can be emulated with CBC + empty IV */ case MODE_ID_CBC: if (key->u.s.secret_len == 16) return GNUTLS_CIPHER_AES_128_CBC; if (key->u.s.secret_len == 24) return GNUTLS_CIPHER_AES_192_CBC; if (key->u.s.secret_len == 32) return GNUTLS_CIPHER_AES_256_CBC; break; default: break; } FIXME( "AES mode %u with key length %u not supported\n", key->u.s.mode, key->u.s.secret_len ); return GNUTLS_CIPHER_UNKNOWN; default: FIXME( "algorithm %u not supported\n", key->alg_id ); return GNUTLS_CIPHER_UNKNOWN; } } static void CDECL key_symmetric_vector_reset( struct key *key ) { if (!key_data(key)->cipher) return; TRACE( "invalidating cipher handle\n" ); pgnutls_cipher_deinit( key_data(key)->cipher ); key_data(key)->cipher = NULL; } static NTSTATUS init_cipher_handle( struct key *key ) { gnutls_cipher_algorithm_t cipher; gnutls_datum_t secret, vector; int ret; if (key_data(key)->cipher) return STATUS_SUCCESS; if ((cipher = get_gnutls_cipher( key )) == GNUTLS_CIPHER_UNKNOWN) return STATUS_NOT_SUPPORTED; secret.data = key->u.s.secret; secret.size = key->u.s.secret_len; vector.data = key->u.s.vector; vector.size = key->u.s.vector_len; if ((ret = pgnutls_cipher_init( &key_data(key)->cipher, cipher, &secret, key->u.s.vector ? &vector : NULL ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } return STATUS_SUCCESS; } static NTSTATUS CDECL key_symmetric_set_auth_data( struct key *key, UCHAR *auth_data, ULONG len ) { NTSTATUS status; int ret; if (!auth_data) return STATUS_SUCCESS; if ((status = init_cipher_handle( key ))) return status; if ((ret = pgnutls_cipher_add_auth( key_data(key)->cipher, auth_data, len ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } return STATUS_SUCCESS; } static NTSTATUS CDECL key_symmetric_encrypt( struct key *key, const UCHAR *input, ULONG input_len, UCHAR *output, ULONG output_len ) { NTSTATUS status; int ret; if ((status = init_cipher_handle( key ))) return status; if ((ret = pgnutls_cipher_encrypt2( key_data(key)->cipher, input, input_len, output, output_len ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } return STATUS_SUCCESS; } static NTSTATUS CDECL key_symmetric_decrypt( struct key *key, const UCHAR *input, ULONG input_len, UCHAR *output, ULONG output_len ) { NTSTATUS status; int ret; if ((status = init_cipher_handle( key ))) return status; if ((ret = pgnutls_cipher_decrypt2( key_data(key)->cipher, input, input_len, output, output_len ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } return STATUS_SUCCESS; } static NTSTATUS CDECL key_symmetric_get_tag( struct key *key, UCHAR *tag, ULONG len ) { NTSTATUS status; int ret; if ((status = init_cipher_handle( key ))) return status; if ((ret = pgnutls_cipher_tag( key_data(key)->cipher, tag, len ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } return STATUS_SUCCESS; } static void CDECL key_symmetric_destroy( struct key *key ) { if (key_data(key)->cipher) pgnutls_cipher_deinit( key_data(key)->cipher ); } static void export_gnutls_datum( UCHAR *buffer, ULONG length, gnutls_datum_t *d, ULONG *actual_length ) { ULONG size = d->size; UCHAR *src = d->data; ULONG offset; assert( size <= length + 1 ); if (size == length + 1) { assert(!src[0]); ++src; --size; } if (actual_length) { offset = 0; *actual_length = size; } else { offset = length - size; memset( buffer, 0, offset ); } memcpy( buffer + offset, src, size ); } static NTSTATUS export_gnutls_pubkey_rsa( gnutls_privkey_t gnutls_key, ULONG bitlen, UCHAR **pubkey, ULONG *pubkey_len ) { BCRYPT_RSAKEY_BLOB *rsa_blob; gnutls_datum_t m, e; UCHAR *dst; int ret; if ((ret = pgnutls_privkey_export_rsa_raw( gnutls_key, &m, &e, NULL, NULL, NULL, NULL, NULL, NULL ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } if (!(rsa_blob = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*rsa_blob) + e.size + m.size ))) { pgnutls_perror( ret ); free( e.data ); free( m.data ); return STATUS_NO_MEMORY; } dst = (UCHAR *)(rsa_blob + 1); export_gnutls_datum( dst, bitlen / 8, &e, &rsa_blob->cbPublicExp ); dst += rsa_blob->cbPublicExp; export_gnutls_datum( dst, bitlen / 8, &m, &rsa_blob->cbModulus ); rsa_blob->Magic = BCRYPT_RSAPUBLIC_MAGIC; rsa_blob->BitLength = bitlen; rsa_blob->cbPrime1 = 0; rsa_blob->cbPrime2 = 0; *pubkey = (UCHAR *)rsa_blob; *pubkey_len = sizeof(*rsa_blob) + rsa_blob->cbPublicExp + rsa_blob->cbModulus; free( e.data ); free( m.data ); return STATUS_SUCCESS; } static NTSTATUS export_gnutls_pubkey_ecc( gnutls_privkey_t gnutls_key, enum alg_id alg_id, UCHAR **pubkey, ULONG *pubkey_len ) { BCRYPT_ECCKEY_BLOB *ecc_blob; gnutls_ecc_curve_t curve; gnutls_datum_t x, y; DWORD magic, size; UCHAR *dst; int ret; switch (alg_id) { case ALG_ID_ECDH_P256: magic = BCRYPT_ECDH_PUBLIC_P256_MAGIC; size = 32; break; case ALG_ID_ECDSA_P256: magic = BCRYPT_ECDSA_PUBLIC_P256_MAGIC; size = 32; break; default: FIXME( "algorithm %u not supported\n", alg_id ); return STATUS_NOT_IMPLEMENTED; } if ((ret = pgnutls_privkey_export_ecc_raw( gnutls_key, &curve, &x, &y, NULL ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } if (curve != GNUTLS_ECC_CURVE_SECP256R1) { FIXME( "curve %u not supported\n", curve ); free( x.data ); free( y.data ); return STATUS_NOT_IMPLEMENTED; } if (!(ecc_blob = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*ecc_blob) + size * 2 ))) { pgnutls_perror( ret ); free( x.data ); free( y.data ); return STATUS_NO_MEMORY; } ecc_blob->dwMagic = magic; ecc_blob->cbKey = size; dst = (UCHAR *)(ecc_blob + 1); export_gnutls_datum( dst, size, &x, NULL ); dst += size; export_gnutls_datum( dst, size, &y, NULL ); *pubkey = (UCHAR *)ecc_blob; *pubkey_len = sizeof(*ecc_blob) + ecc_blob->cbKey * 2; free( x.data ); free( y.data ); return STATUS_SUCCESS; } static NTSTATUS export_gnutls_pubkey_dsa( gnutls_privkey_t gnutls_key, ULONG bitlen, UCHAR **pubkey, ULONG *pubkey_len ) { BCRYPT_DSA_KEY_BLOB *dsa_blob; gnutls_datum_t p, q, g, y; UCHAR *dst; int ret; if ((ret = pgnutls_privkey_export_dsa_raw( gnutls_key, &p, &q, &g, &y, NULL ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } if (bitlen > 1024) { FIXME( "bitlen > 1024 not supported\n" ); return STATUS_NOT_IMPLEMENTED; } if (!(dsa_blob = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*dsa_blob) + bitlen / 8 * 3 ))) { pgnutls_perror( ret ); free( p.data ); free( q.data ); free( g.data ); free( y.data ); return STATUS_NO_MEMORY; } dst = (UCHAR *)(dsa_blob + 1); export_gnutls_datum( dst, bitlen / 8, &p, NULL ); dst += bitlen / 8; export_gnutls_datum( dst, bitlen / 8, &g, NULL ); dst += bitlen / 8; export_gnutls_datum( dst, bitlen / 8, &y, NULL ); dst = dsa_blob->q; export_gnutls_datum( dst, sizeof(dsa_blob->q), &q, NULL ); dsa_blob->dwMagic = BCRYPT_DSA_PUBLIC_MAGIC; dsa_blob->cbKey = bitlen / 8; memset( dsa_blob->Count, 0, sizeof(dsa_blob->Count) ); /* FIXME */ memset( dsa_blob->Seed, 0, sizeof(dsa_blob->Seed) ); /* FIXME */ *pubkey = (UCHAR *)dsa_blob; *pubkey_len = sizeof(*dsa_blob) + dsa_blob->cbKey * 3; free( p.data ); free( q.data ); free( g.data ); free( y.data ); return STATUS_SUCCESS; } static void reverse_bytes( UCHAR *buf, ULONG len ) { unsigned int i; UCHAR tmp; for (i = 0; i < len / 2; ++i) { tmp = buf[i]; buf[i] = buf[len - i - 1]; buf[len - i - 1] = tmp; } } #define Q_SIZE 20 static NTSTATUS export_gnutls_pubkey_dsa_capi( gnutls_privkey_t gnutls_key, const DSSSEED *seed, ULONG bitlen, UCHAR **pubkey, ULONG *pubkey_len ) { BLOBHEADER *hdr; DSSPUBKEY *dsskey; gnutls_datum_t p, q, g, y; UCHAR *dst; int ret, size = sizeof(*hdr) + sizeof(*dsskey) + sizeof(*seed); if (bitlen > 1024) { FIXME( "bitlen > 1024 not supported\n" ); return STATUS_NOT_IMPLEMENTED; } if ((ret = pgnutls_privkey_export_dsa_raw( gnutls_key, &p, &q, &g, &y, NULL ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } if (!(hdr = RtlAllocateHeap( GetProcessHeap(), 0, size + bitlen / 8 * 3 + Q_SIZE ))) { pgnutls_perror( ret ); free( p.data ); free( q.data ); free( g.data ); free( y.data ); return STATUS_NO_MEMORY; } hdr->bType = PUBLICKEYBLOB; hdr->bVersion = 2; hdr->reserved = 0; hdr->aiKeyAlg = CALG_DSS_SIGN; dsskey = (DSSPUBKEY *)(hdr + 1); dsskey->magic = MAGIC_DSS1; dsskey->bitlen = bitlen; dst = (UCHAR *)(dsskey + 1); export_gnutls_datum( dst, bitlen / 8, &p, NULL ); reverse_bytes( dst, bitlen / 8 ); dst += bitlen / 8; export_gnutls_datum( dst, Q_SIZE, &q, NULL ); reverse_bytes( dst, Q_SIZE ); dst += Q_SIZE; export_gnutls_datum( dst, bitlen / 8, &g, NULL ); reverse_bytes( dst, bitlen / 8 ); dst += bitlen / 8; export_gnutls_datum( dst, bitlen / 8, &y, NULL ); reverse_bytes( dst, bitlen / 8 ); dst += bitlen / 8; memcpy( dst, seed, sizeof(*seed) ); *pubkey = (UCHAR *)hdr; *pubkey_len = size + bitlen / 8 * 3 + Q_SIZE; free( p.data ); free( q.data ); free( g.data ); free( y.data ); return STATUS_SUCCESS; } static NTSTATUS CDECL key_asymmetric_generate( struct key *key ) { gnutls_pk_algorithm_t pk_alg; gnutls_privkey_t handle; unsigned int bitlen; NTSTATUS status; int ret; if (!libgnutls_handle) return STATUS_INTERNAL_ERROR; switch (key->alg_id) { case ALG_ID_RSA: case ALG_ID_RSA_SIGN: pk_alg = GNUTLS_PK_RSA; bitlen = key->u.a.bitlen; break; case ALG_ID_DSA: pk_alg = GNUTLS_PK_DSA; bitlen = key->u.a.bitlen; break; case ALG_ID_ECDH_P256: case ALG_ID_ECDSA_P256: pk_alg = GNUTLS_PK_ECC; /* compatible with ECDSA and ECDH */ bitlen = GNUTLS_CURVE_TO_BITS( GNUTLS_ECC_CURVE_SECP256R1 ); break; default: FIXME( "algorithm %u not supported\n", key->alg_id ); return STATUS_NOT_SUPPORTED; } if ((ret = pgnutls_privkey_init( &handle ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } if ((ret = pgnutls_privkey_generate( handle, pk_alg, bitlen, 0 ))) { pgnutls_perror( ret ); pgnutls_privkey_deinit( handle ); return STATUS_INTERNAL_ERROR; } switch (pk_alg) { case GNUTLS_PK_RSA: status = export_gnutls_pubkey_rsa( handle, key->u.a.bitlen, &key->u.a.pubkey, &key->u.a.pubkey_len ); break; case GNUTLS_PK_ECC: status = export_gnutls_pubkey_ecc( handle, key->alg_id, &key->u.a.pubkey, &key->u.a.pubkey_len ); break; case GNUTLS_PK_DSA: status = export_gnutls_pubkey_dsa( handle, key->u.a.bitlen, &key->u.a.pubkey, &key->u.a.pubkey_len ); break; default: ERR( "unhandled algorithm %u\n", pk_alg ); return STATUS_INTERNAL_ERROR; } if (status) { pgnutls_privkey_deinit( handle ); return status; } key_data(key)->privkey = handle; return STATUS_SUCCESS; } static NTSTATUS CDECL key_export_ecc( struct key *key, UCHAR *buf, ULONG len, ULONG *ret_len ) { BCRYPT_ECCKEY_BLOB *ecc_blob; gnutls_ecc_curve_t curve; gnutls_datum_t x, y, d; DWORD magic, size; UCHAR *dst; int ret; switch (key->alg_id) { case ALG_ID_ECDH_P256: magic = BCRYPT_ECDH_PRIVATE_P256_MAGIC; size = 32; break; case ALG_ID_ECDSA_P256: magic = BCRYPT_ECDSA_PRIVATE_P256_MAGIC; size = 32; break; default: FIXME( "algorithm %u does not yet support exporting ecc blob\n", key->alg_id ); return STATUS_NOT_IMPLEMENTED; } if ((ret = pgnutls_privkey_export_ecc_raw( key_data(key)->privkey, &curve, &x, &y, &d ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } if (curve != GNUTLS_ECC_CURVE_SECP256R1) { FIXME( "curve %u not supported\n", curve ); free( x.data ); free( y.data ); free( d.data ); return STATUS_NOT_IMPLEMENTED; } *ret_len = sizeof(*ecc_blob) + size * 3; if (len >= *ret_len && buf) { ecc_blob = (BCRYPT_ECCKEY_BLOB *)buf; ecc_blob->dwMagic = magic; ecc_blob->cbKey = size; dst = (UCHAR *)(ecc_blob + 1); export_gnutls_datum( dst, size, &x, NULL ); dst += size; export_gnutls_datum( dst, size, &y, NULL ); dst += size; export_gnutls_datum( dst, size, &d, NULL ); } free( x.data ); free( y.data ); free( d.data ); return STATUS_SUCCESS; } static NTSTATUS CDECL key_import_ecc( struct key *key, UCHAR *buf, ULONG len ) { BCRYPT_ECCKEY_BLOB *ecc_blob; gnutls_ecc_curve_t curve; gnutls_privkey_t handle; gnutls_datum_t x, y, k; NTSTATUS status; int ret; switch (key->alg_id) { case ALG_ID_ECDH_P256: case ALG_ID_ECDSA_P256: curve = GNUTLS_ECC_CURVE_SECP256R1; break; default: FIXME( "algorithm %u not yet supported\n", key->alg_id ); return STATUS_NOT_IMPLEMENTED; } if ((ret = pgnutls_privkey_init( &handle ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } ecc_blob = (BCRYPT_ECCKEY_BLOB *)buf; x.data = (unsigned char *)(ecc_blob + 1); x.size = ecc_blob->cbKey; y.data = x.data + ecc_blob->cbKey; y.size = ecc_blob->cbKey; k.data = y.data + ecc_blob->cbKey; k.size = ecc_blob->cbKey; if ((ret = pgnutls_privkey_import_ecc_raw( handle, curve, &x, &y, &k ))) { pgnutls_perror( ret ); pgnutls_privkey_deinit( handle ); return STATUS_INTERNAL_ERROR; } if ((status = export_gnutls_pubkey_ecc( handle, key->alg_id, &key->u.a.pubkey, &key->u.a.pubkey_len ))) { pgnutls_privkey_deinit( handle ); return status; } key_data(key)->privkey = handle; return STATUS_SUCCESS; } static NTSTATUS CDECL key_import_rsa( struct key *key, UCHAR *buf, ULONG len ) { BCRYPT_RSAKEY_BLOB *rsa_blob = (BCRYPT_RSAKEY_BLOB *)buf; gnutls_datum_t m, e, p, q; gnutls_privkey_t handle; int ret; if ((ret = pgnutls_privkey_init( &handle ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } e.data = (unsigned char *)(rsa_blob + 1); e.size = rsa_blob->cbPublicExp; m.data = e.data + e.size; m.size = rsa_blob->cbModulus; p.data = m.data + m.size; p.size = rsa_blob->cbPrime1; q.data = p.data + p.size; q.size = rsa_blob->cbPrime2; if ((ret = pgnutls_privkey_import_rsa_raw( handle, &m, &e, NULL, &p, &q, NULL, NULL, NULL ))) { pgnutls_perror( ret ); pgnutls_privkey_deinit( handle ); return STATUS_INTERNAL_ERROR; } key_data(key)->privkey = handle; return STATUS_SUCCESS; } static NTSTATUS CDECL key_export_dsa_capi( struct key *key, UCHAR *buf, ULONG len, ULONG *ret_len ) { BLOBHEADER *hdr; DSSPUBKEY *pubkey; gnutls_datum_t p, q, g, y, x; UCHAR *dst; int ret, size; if ((ret = pgnutls_privkey_export_dsa_raw( key_data(key)->privkey, &p, &q, &g, &y, &x ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } if (q.size > 21 || x.size > 21) { ERR( "can't export key in this format\n" ); free( p.data ); free( q.data ); free( g.data ); free( y.data ); free( x.data ); return STATUS_NOT_SUPPORTED; } size = key->u.a.bitlen / 8; *ret_len = sizeof(*hdr) + sizeof(*pubkey) + size * 2 + 40 + sizeof(key->u.a.dss_seed); if (len >= *ret_len && buf) { hdr = (BLOBHEADER *)buf; hdr->bType = PRIVATEKEYBLOB; hdr->bVersion = 2; hdr->reserved = 0; hdr->aiKeyAlg = CALG_DSS_SIGN; pubkey = (DSSPUBKEY *)(hdr + 1); pubkey->magic = MAGIC_DSS2; pubkey->bitlen = key->u.a.bitlen; dst = (UCHAR *)(pubkey + 1); export_gnutls_datum( dst, size, &p, NULL ); reverse_bytes( dst, size ); dst += size; export_gnutls_datum( dst, 20, &q, NULL ); reverse_bytes( dst, 20 ); dst += 20; export_gnutls_datum( dst, size, &g, NULL ); reverse_bytes( dst, size ); dst += size; export_gnutls_datum( dst, 20, &x, NULL ); reverse_bytes( dst, 20 ); dst += 20; memcpy( dst, &key->u.a.dss_seed, sizeof(key->u.a.dss_seed) ); } free( p.data ); free( q.data ); free( g.data ); free( y.data ); free( x.data ); return STATUS_SUCCESS; } static NTSTATUS CDECL key_import_dsa_capi( struct key *key, UCHAR *buf, ULONG len ) { BLOBHEADER *hdr = (BLOBHEADER *)buf; DSSPUBKEY *pubkey; gnutls_privkey_t handle; gnutls_datum_t p, q, g, y, x; unsigned char dummy[128]; unsigned char *data, p_data[128], q_data[20], g_data[128], x_data[20]; int i, ret, size; NTSTATUS status; if ((ret = pgnutls_privkey_init( &handle ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } hdr = (BLOBHEADER *)buf; pubkey = (DSSPUBKEY *)(hdr + 1); if ((size = pubkey->bitlen / 8) > sizeof(p_data)) { FIXME( "size %u not supported\n", size ); pgnutls_privkey_deinit( handle ); return STATUS_NOT_SUPPORTED; } data = (unsigned char *)(pubkey + 1); p.data = p_data; p.size = size; for (i = 0; i < p.size; i++) p.data[i] = data[p.size - i - 1]; data += p.size; q.data = q_data; q.size = sizeof(q_data); for (i = 0; i < q.size; i++) q.data[i] = data[q.size - i - 1]; data += q.size; g.data = g_data; g.size = size; for (i = 0; i < g.size; i++) g.data[i] = data[g.size - i - 1]; data += g.size; x.data = x_data; x.size = sizeof(x_data); for (i = 0; i < x.size; i++) x.data[i] = data[x.size - i - 1]; data += x.size; WARN( "using dummy public key\n" ); memset( dummy, 1, sizeof(dummy) ); y.data = dummy; y.size = min( p.size, sizeof(dummy) ); if ((ret = pgnutls_privkey_import_dsa_raw( handle, &p, &q, &g, &y, &x ))) { pgnutls_perror( ret ); pgnutls_privkey_deinit( handle ); return STATUS_INTERNAL_ERROR; } if ((status = export_gnutls_pubkey_dsa_capi( handle, &key->u.a.dss_seed, key->u.a.bitlen, &key->u.a.pubkey, &key->u.a.pubkey_len ))) { pgnutls_privkey_deinit( handle ); return status; } memcpy( &key->u.a.dss_seed, data, sizeof(key->u.a.dss_seed) ); key->u.a.flags |= KEY_FLAG_LEGACY_DSA_V2; key_data(key)->privkey = handle; return STATUS_SUCCESS; } static NTSTATUS CDECL key_asymmetric_init( struct key *key ) { if (!libgnutls_handle) return STATUS_INTERNAL_ERROR; switch (key->alg_id) { case ALG_ID_ECDH_P256: case ALG_ID_ECDSA_P256: case ALG_ID_ECDSA_P384: case ALG_ID_RSA: case ALG_ID_RSA_SIGN: case ALG_ID_DSA: return STATUS_SUCCESS; default: FIXME( "algorithm %u not supported\n", key->alg_id ); return STATUS_NOT_SUPPORTED; } } static NTSTATUS import_gnutls_pubkey_ecc( struct key *key, gnutls_pubkey_t *gnutls_key ) { BCRYPT_ECCKEY_BLOB *ecc_blob; gnutls_ecc_curve_t curve; gnutls_datum_t x, y; int ret; switch (key->alg_id) { case ALG_ID_ECDSA_P256: curve = GNUTLS_ECC_CURVE_SECP256R1; break; case ALG_ID_ECDSA_P384: curve = GNUTLS_ECC_CURVE_SECP384R1; break; default: FIXME( "algorithm %u not yet supported\n", key->alg_id ); return STATUS_NOT_IMPLEMENTED; } if ((ret = pgnutls_pubkey_init( gnutls_key ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } ecc_blob = (BCRYPT_ECCKEY_BLOB *)key->u.a.pubkey; x.data = key->u.a.pubkey + sizeof(*ecc_blob); x.size = ecc_blob->cbKey; y.data = key->u.a.pubkey + sizeof(*ecc_blob) + ecc_blob->cbKey; y.size = ecc_blob->cbKey; if ((ret = pgnutls_pubkey_import_ecc_raw( *gnutls_key, curve, &x, &y ))) { pgnutls_perror( ret ); pgnutls_pubkey_deinit( *gnutls_key ); return STATUS_INTERNAL_ERROR; } return STATUS_SUCCESS; } static NTSTATUS import_gnutls_pubkey_rsa( struct key *key, gnutls_pubkey_t *gnutls_key ) { BCRYPT_RSAKEY_BLOB *rsa_blob; gnutls_datum_t m, e; int ret; if ((ret = pgnutls_pubkey_init( gnutls_key ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } rsa_blob = (BCRYPT_RSAKEY_BLOB *)key->u.a.pubkey; e.data = key->u.a.pubkey + sizeof(*rsa_blob); e.size = rsa_blob->cbPublicExp; m.data = key->u.a.pubkey + sizeof(*rsa_blob) + rsa_blob->cbPublicExp; m.size = rsa_blob->cbModulus; if ((ret = pgnutls_pubkey_import_rsa_raw( *gnutls_key, &m, &e ))) { pgnutls_perror( ret ); pgnutls_pubkey_deinit( *gnutls_key ); return STATUS_INTERNAL_ERROR; } return STATUS_SUCCESS; } static NTSTATUS import_gnutls_pubkey_dsa( struct key *key, gnutls_pubkey_t *gnutls_key ) { BCRYPT_DSA_KEY_BLOB *dsa_blob; gnutls_datum_t p, q, g, y; int ret; if ((ret = pgnutls_pubkey_init( gnutls_key ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } dsa_blob = (BCRYPT_DSA_KEY_BLOB *)key->u.a.pubkey; p.data = key->u.a.pubkey + sizeof(*dsa_blob); p.size = dsa_blob->cbKey; q.data = dsa_blob->q; q.size = sizeof(dsa_blob->q); g.data = key->u.a.pubkey + sizeof(*dsa_blob) + dsa_blob->cbKey; g.size = dsa_blob->cbKey; y.data = key->u.a.pubkey + sizeof(*dsa_blob) + dsa_blob->cbKey * 2; y.size = dsa_blob->cbKey; if ((ret = pgnutls_pubkey_import_dsa_raw( *gnutls_key, &p, &q, &g, &y ))) { pgnutls_perror( ret ); pgnutls_pubkey_deinit( *gnutls_key ); return STATUS_INTERNAL_ERROR; } return STATUS_SUCCESS; } static NTSTATUS import_gnutls_pubkey_dsa_capi( struct key *key, gnutls_pubkey_t *gnutls_key ) { BLOBHEADER *hdr; DSSPUBKEY *pubkey; gnutls_datum_t p, q, g, y; unsigned char *data, p_data[128], q_data[20], g_data[128], y_data[128]; int i, ret, size; if ((ret = pgnutls_pubkey_init( gnutls_key ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } hdr = (BLOBHEADER *)key->u.a.pubkey; pubkey = (DSSPUBKEY *)(hdr + 1); size = pubkey->bitlen / 8; data = (unsigned char *)(pubkey + 1); p.data = p_data; p.size = size; for (i = 0; i < p.size; i++) p.data[i] = data[p.size - i - 1]; data += p.size; q.data = q_data; q.size = sizeof(q_data); for (i = 0; i < q.size; i++) q.data[i] = data[q.size - i - 1]; data += q.size; g.data = g_data; g.size = size; for (i = 0; i < g.size; i++) g.data[i] = data[g.size - i - 1]; data += g.size; y.data = y_data; y.size = sizeof(y_data); for (i = 0; i < y.size; i++) y.data[i] = data[y.size - i - 1]; if ((ret = pgnutls_pubkey_import_dsa_raw( *gnutls_key, &p, &q, &g, &y ))) { pgnutls_perror( ret ); pgnutls_pubkey_deinit( *gnutls_key ); return STATUS_INTERNAL_ERROR; } return STATUS_SUCCESS; } static NTSTATUS import_gnutls_pubkey( struct key *key, gnutls_pubkey_t *gnutls_key ) { switch (key->alg_id) { case ALG_ID_ECDSA_P256: case ALG_ID_ECDSA_P384: return import_gnutls_pubkey_ecc( key, gnutls_key ); case ALG_ID_RSA: case ALG_ID_RSA_SIGN: return import_gnutls_pubkey_rsa( key, gnutls_key ); case ALG_ID_DSA: if (key->u.a.flags & KEY_FLAG_LEGACY_DSA_V2) return import_gnutls_pubkey_dsa_capi( key, gnutls_key ); else return import_gnutls_pubkey_dsa( key, gnutls_key ); default: FIXME("algorithm %u not yet supported\n", key->alg_id ); return STATUS_NOT_IMPLEMENTED; } } static NTSTATUS prepare_gnutls_signature_dsa( struct key *key, UCHAR *signature, ULONG signature_len, gnutls_datum_t *gnutls_signature ) { struct buffer buffer; DWORD r_len = signature_len / 2; DWORD s_len = r_len; BYTE *r = signature; BYTE *s = signature + r_len; buffer_init( &buffer ); buffer_append_asn1_r_s( &buffer, r, r_len, s, s_len ); if (buffer.error) { buffer_free( &buffer ); return STATUS_NO_MEMORY; } gnutls_signature->data = buffer.buffer; gnutls_signature->size = buffer.pos; return STATUS_SUCCESS; } static NTSTATUS prepare_gnutls_signature_rsa( struct key *key, UCHAR *signature, ULONG signature_len, gnutls_datum_t *gnutls_signature ) { gnutls_signature->data = signature; gnutls_signature->size = signature_len; return STATUS_SUCCESS; } static NTSTATUS prepare_gnutls_signature( struct key *key, UCHAR *signature, ULONG signature_len, gnutls_datum_t *gnutls_signature ) { switch (key->alg_id) { case ALG_ID_ECDSA_P256: case ALG_ID_ECDSA_P384: case ALG_ID_DSA: return prepare_gnutls_signature_dsa( key, signature, signature_len, gnutls_signature ); case ALG_ID_RSA: case ALG_ID_RSA_SIGN: return prepare_gnutls_signature_rsa( key, signature, signature_len, gnutls_signature ); default: FIXME( "algorithm %u not yet supported\n", key->alg_id ); return STATUS_NOT_IMPLEMENTED; } } static gnutls_digest_algorithm_t get_digest_from_id( const WCHAR *alg_id ) { if (!strcmpW( alg_id, BCRYPT_SHA1_ALGORITHM )) return GNUTLS_DIG_SHA1; if (!strcmpW( alg_id, BCRYPT_SHA256_ALGORITHM )) return GNUTLS_DIG_SHA256; if (!strcmpW( alg_id, BCRYPT_SHA384_ALGORITHM )) return GNUTLS_DIG_SHA384; if (!strcmpW( alg_id, BCRYPT_SHA512_ALGORITHM )) return GNUTLS_DIG_SHA512; if (!strcmpW( alg_id, BCRYPT_MD2_ALGORITHM )) return GNUTLS_DIG_MD2; if (!strcmpW( alg_id, BCRYPT_MD5_ALGORITHM )) return GNUTLS_DIG_MD5; return -1; } static NTSTATUS CDECL key_asymmetric_verify( struct key *key, void *padding, UCHAR *hash, ULONG hash_len, UCHAR *signature, ULONG signature_len, DWORD flags ) { gnutls_digest_algorithm_t hash_alg; gnutls_sign_algorithm_t sign_alg; gnutls_datum_t gnutls_hash, gnutls_signature; gnutls_pk_algorithm_t pk_alg; gnutls_pubkey_t gnutls_key; NTSTATUS status; int ret; switch (key->alg_id) { case ALG_ID_ECDSA_P256: case ALG_ID_ECDSA_P384: { if (flags) FIXME( "flags %08x not supported\n", flags ); /* only the hash size must match, not the actual hash function */ switch (hash_len) { case 20: hash_alg = GNUTLS_DIG_SHA1; break; case 32: hash_alg = GNUTLS_DIG_SHA256; break; case 48: hash_alg = GNUTLS_DIG_SHA384; break; default: FIXME( "hash size %u not yet supported\n", hash_len ); return STATUS_INVALID_SIGNATURE; } pk_alg = GNUTLS_PK_ECC; break; } case ALG_ID_RSA: case ALG_ID_RSA_SIGN: { BCRYPT_PKCS1_PADDING_INFO *info = (BCRYPT_PKCS1_PADDING_INFO *)padding; if (!(flags & BCRYPT_PAD_PKCS1) || !info) return STATUS_INVALID_PARAMETER; if (!info->pszAlgId) return STATUS_INVALID_SIGNATURE; if ((hash_alg = get_digest_from_id(info->pszAlgId)) == -1) { FIXME( "hash algorithm %s not supported\n", debugstr_w(info->pszAlgId) ); return STATUS_NOT_SUPPORTED; } pk_alg = GNUTLS_PK_RSA; break; } case ALG_ID_DSA: { if (flags) FIXME( "flags %08x not supported\n", flags ); if (hash_len != 20) { FIXME( "hash size %u not supported\n", hash_len ); return STATUS_INVALID_PARAMETER; } hash_alg = GNUTLS_DIG_SHA1; pk_alg = GNUTLS_PK_DSA; break; } default: FIXME( "algorithm %u not yet supported\n", key->alg_id ); return STATUS_NOT_IMPLEMENTED; } if ((sign_alg = pgnutls_pk_to_sign( pk_alg, hash_alg )) == GNUTLS_SIGN_UNKNOWN) { FIXME("GnuTLS does not support algorithm %u with hash len %u\n", key->alg_id, hash_len ); return STATUS_NOT_IMPLEMENTED; } if ((status = import_gnutls_pubkey( key, &gnutls_key ))) return status; if ((status = prepare_gnutls_signature( key, signature, signature_len, &gnutls_signature ))) { pgnutls_pubkey_deinit( gnutls_key ); return status; } gnutls_hash.data = hash; gnutls_hash.size = hash_len; ret = pgnutls_pubkey_verify_hash2( gnutls_key, sign_alg, 0, &gnutls_hash, &gnutls_signature ); if (gnutls_signature.data != signature) free( gnutls_signature.data ); pgnutls_pubkey_deinit( gnutls_key ); return (ret < 0) ? STATUS_INVALID_SIGNATURE : STATUS_SUCCESS; } static unsigned int get_signature_length( enum alg_id id ) { switch (id) { case ALG_ID_ECDSA_P256: return 64; case ALG_ID_ECDSA_P384: return 96; case ALG_ID_DSA: return 40; default: FIXME( "unhandled algorithm %u\n", id ); return 0; } } static NTSTATUS format_gnutls_signature( enum alg_id type, gnutls_datum_t signature, UCHAR *output, ULONG output_len, ULONG *ret_len ) { switch (type) { case ALG_ID_RSA: case ALG_ID_RSA_SIGN: { *ret_len = signature.size; if (output_len < signature.size) return STATUS_BUFFER_TOO_SMALL; if (output) memcpy( output, signature.data, signature.size ); return STATUS_SUCCESS; } case ALG_ID_ECDSA_P256: case ALG_ID_ECDSA_P384: case ALG_ID_DSA: { int err; unsigned int sig_len = get_signature_length( type ); gnutls_datum_t r, s; /* format as r||s */ if ((err = pgnutls_decode_rs_value( &signature, &r, &s ))) { pgnutls_perror( err ); return STATUS_INTERNAL_ERROR; } *ret_len = sig_len; if (output_len < sig_len) return STATUS_BUFFER_TOO_SMALL; if (r.size > sig_len / 2 + 1 || s.size > sig_len / 2 + 1) { ERR( "we didn't get a correct signature\n" ); return STATUS_INTERNAL_ERROR; } if (output) { export_gnutls_datum( output, sig_len / 2, &r, NULL ); export_gnutls_datum( output + sig_len / 2, sig_len / 2, &s, NULL ); } free( r.data ); free( s.data ); return STATUS_SUCCESS; } default: return STATUS_INTERNAL_ERROR; } } static NTSTATUS CDECL key_asymmetric_sign( struct key *key, void *padding, UCHAR *input, ULONG input_len, UCHAR *output, ULONG output_len, ULONG *ret_len, ULONG flags ) { BCRYPT_PKCS1_PADDING_INFO *pad = padding; gnutls_datum_t hash, signature; gnutls_digest_algorithm_t hash_alg; NTSTATUS status; int ret; if (key->alg_id == ALG_ID_ECDSA_P256 || key->alg_id == ALG_ID_ECDSA_P384) { /* With ECDSA, we find the digest algorithm from the hash length, and verify it */ switch (input_len) { case 20: hash_alg = GNUTLS_DIG_SHA1; break; case 32: hash_alg = GNUTLS_DIG_SHA256; break; case 48: hash_alg = GNUTLS_DIG_SHA384; break; case 64: hash_alg = GNUTLS_DIG_SHA512; break; default: FIXME( "hash size %u not yet supported\n", input_len ); return STATUS_INVALID_PARAMETER; } if (flags == BCRYPT_PAD_PKCS1 && pad && pad->pszAlgId && get_digest_from_id( pad->pszAlgId ) != hash_alg) { WARN( "incorrect hashing algorithm %s, expected %u\n", debugstr_w(pad->pszAlgId), hash_alg ); return STATUS_INVALID_PARAMETER; } } else if (key->alg_id == ALG_ID_DSA) { if (flags) FIXME( "flags %08x not supported\n", flags ); if (input_len != 20) { FIXME( "hash size %u not supported\n", input_len ); return STATUS_INVALID_PARAMETER; } hash_alg = GNUTLS_DIG_SHA1; } else if (flags == BCRYPT_PAD_PKCS1) { if (!pad || !pad->pszAlgId) { WARN( "padding info not found\n" ); return STATUS_INVALID_PARAMETER; } if ((hash_alg = get_digest_from_id( pad->pszAlgId )) == -1) { FIXME( "hash algorithm %s not recognized\n", debugstr_w(pad->pszAlgId) ); return STATUS_NOT_SUPPORTED; } } else if (!flags) { WARN( "invalid flags %08x\n", flags ); return STATUS_INVALID_PARAMETER; } else { FIXME( "flags %08x not implemented\n", flags ); return STATUS_NOT_IMPLEMENTED; } if (!input) { *ret_len = key->u.a.bitlen / 8; return STATUS_SUCCESS; } if (!key_data(key)->privkey) return STATUS_INVALID_PARAMETER; hash.data = input; hash.size = input_len; signature.data = NULL; signature.size = 0; if ((ret = pgnutls_privkey_sign_hash( key_data(key)->privkey, hash_alg, 0, &hash, &signature ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } status = format_gnutls_signature( key->alg_id, signature, output, output_len, ret_len ); free( signature.data ); return status; } static void CDECL key_asymmetric_destroy( struct key *key ) { if (key_data(key)->privkey) pgnutls_privkey_deinit( key_data(key)->privkey ); } static NTSTATUS CDECL key_asymmetric_duplicate( struct key *key_orig, struct key *key_copy ) { int ret; if (!key_data(key_orig)->privkey) return STATUS_SUCCESS; if ((ret = pgnutls_privkey_init( &key_data(key_copy)->privkey ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } switch (key_orig->alg_id) { case ALG_ID_RSA: case ALG_ID_RSA_SIGN: { gnutls_datum_t m, e, d, p, q, u, e1, e2; if ((ret = pgnutls_privkey_export_rsa_raw( key_data(key_orig)->privkey, &m, &e, &d, &p, &q, &u, &e1, &e2 ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } ret = pgnutls_privkey_import_rsa_raw( key_data(key_copy)->privkey, &m, &e, &d, &p, &q, &u, &e1, &e2 ); free( m.data ); free( e.data ); free( d.data ); free( p.data ); free( q.data ); free( u.data ); free( e1.data ); free( e2.data ); if (ret) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } break; } case ALG_ID_DSA: { gnutls_datum_t p, q, g, y, x; if ((ret = pgnutls_privkey_export_dsa_raw( key_data(key_orig)->privkey, &p, &q, &g, &y, &x ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } ret = pgnutls_privkey_import_dsa_raw( key_data(key_copy)->privkey, &p, &q, &g, &y, &x ); free( p.data ); free( q.data ); free( g.data ); free( y.data ); free( x.data ); if (ret) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } break; } case ALG_ID_ECDH_P256: case ALG_ID_ECDSA_P256: case ALG_ID_ECDSA_P384: { gnutls_ecc_curve_t curve; gnutls_datum_t x, y, k; if ((ret = pgnutls_privkey_export_ecc_raw( key_data(key_orig)->privkey, &curve, &x, &y, &k ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } ret = pgnutls_privkey_import_ecc_raw( key_data(key_copy)->privkey, curve, &x, &y, &k ); free( x.data ); free( y.data ); free( k.data ); if (ret) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } break; } default: ERR( "unhandled algorithm %u\n", key_orig->alg_id ); return STATUS_INTERNAL_ERROR; } return STATUS_SUCCESS; } static NTSTATUS CDECL key_asymmetric_decrypt( struct key *key, UCHAR *input, ULONG input_len, UCHAR *output, ULONG *output_len ) { gnutls_datum_t e, d = { 0 }; NTSTATUS status = STATUS_SUCCESS; int ret; e.data = (unsigned char *)input; e.size = input_len; if ((ret = pgnutls_privkey_decrypt_data( key_data(key)->privkey, 0, &e, &d ))) { pgnutls_perror( ret ); return STATUS_INTERNAL_ERROR; } if (*output_len >= d.size) { *output_len = d.size; memcpy( output, d.data, *output_len ); } else status = STATUS_BUFFER_TOO_SMALL; free( d.data ); return status; } static const struct key_funcs key_funcs = { key_set_property, key_symmetric_init, key_symmetric_vector_reset, key_symmetric_set_auth_data, key_symmetric_encrypt, key_symmetric_decrypt, key_symmetric_get_tag, key_symmetric_destroy, key_asymmetric_init, key_asymmetric_generate, key_asymmetric_decrypt, key_asymmetric_duplicate, key_asymmetric_sign, key_asymmetric_verify, key_asymmetric_destroy, key_export_dsa_capi, key_export_ecc, key_import_dsa_capi, key_import_ecc, key_import_rsa }; NTSTATUS CDECL __wine_init_unix_lib( HMODULE module, DWORD reason, const void *ptr_in, void *ptr_out ) { switch (reason) { case DLL_PROCESS_ATTACH: if (!gnutls_initialize()) return STATUS_DLL_NOT_FOUND; *(const struct key_funcs **)ptr_out = &key_funcs; break; case DLL_PROCESS_DETACH: gnutls_uninitialize(); break; } return STATUS_SUCCESS; } #endif /* HAVE_GNUTLS_CIPHER_INIT */