1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * SPDX-License-Identifier: (MIT or BSD-3-Clause) 5 */ 6 7 /* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. 8 * Use of this source code is governed by a BSD-style license that can be 9 * found in the LICENSE file. 10 */ 11 12 #ifdef AVB_INSIDE_LIBAVB_H 13 #error "You can't include avb_rsa.h in the public header libavb.h." 14 #endif 15 16 #ifndef AVB_COMPILATION 17 #error "Never include this file, it may only be used from internal avb code." 18 #endif 19 20 #ifndef AVB_RSA_H_ 21 #define AVB_RSA_H_ 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 #include "avb_crypto.h" 28 #include "avb_sysdeps.h" 29 30 /* Using the key given by |key|, verify a RSA signature |sig| of 31 * length |sig_num_bytes| against an expected |hash| of length 32 * |hash_num_bytes|. The padding to expect must be passed in using 33 * |padding| of length |padding_num_bytes|. 34 * 35 * The data in |key| must match the format defined in 36 * |AvbRSAPublicKeyHeader|, including the two large numbers 37 * following. The |key_num_bytes| must be the size of the entire 38 * serialized key. 39 * 40 * Returns false if verification fails, true otherwise. 41 */ 42 bool avb_rsa_verify(const uint8_t* key, 43 size_t key_num_bytes, 44 const uint8_t* sig, 45 size_t sig_num_bytes, 46 const uint8_t* hash, 47 size_t hash_num_bytes, 48 const uint8_t* padding, 49 size_t padding_num_bytes) AVB_ATTR_WARN_UNUSED_RESULT; 50 51 #ifdef __cplusplus 52 } 53 #endif 54 55 #endif /* AVB_RSA_H_ */ 56