| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifdef BVB_INSIDE_BVB_REFIMPL_H |
| #error "You can't include bvb_rsa.h in the public header bvb_refimpl.h." |
| #endif |
| |
| #ifndef BVB_REFIMPL_COMPILATION |
| #error "Never include this file, it may only be used from internal bvb code." |
| #endif |
| |
| #ifndef BVB_RSA_H_ |
| #define BVB_RSA_H_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include "bvb_sysdeps.h" |
| |
| /* Size of a RSA-2048 signature. */ |
| #define BVB_RSA2048_NUM_BYTES 256 |
| |
| /* Size of a RSA-4096 signature. */ |
| #define BVB_RSA4096_NUM_BYTES 512 |
| |
| /* Size of a RSA-8192 signature. */ |
| #define BVB_RSA8192_NUM_BYTES 1024 |
| |
| /* Using the key given by |key_header|, verify a RSA signature |sig| |
| * of length |sig_num_bytes| against an expected |hash| of length |
| * |hash_num_bytes|. The padding to expect must be passed in using |
| * |padding| of length |padding_num_bytes|. |
| * |
| * The data in |key| must match the format defined in |
| * |BvbRSAPublicKeyHeader|, including the two large numbers |
| * following. The |key_num_bytes| must be the size of the entire |
| * serialized key. |
| * |
| * Returns zero if verification fails, non-zero otherwise. |
| */ |
| int bvb_rsa_verify(const uint8_t* key, size_t key_num_bytes, |
| const uint8_t* sig, size_t sig_num_bytes, |
| const uint8_t* hash, size_t hash_num_bytes, |
| const uint8_t* padding, size_t padding_num_bytes); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* BVB_RSA_H_ */ |