1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Permission is hereby granted, free of charge, to any person 5 * obtaining a copy of this software and associated documentation 6 * files (the "Software"), to deal in the Software without 7 * restriction, including without limitation the rights to use, copy, 8 * modify, merge, publish, distribute, sublicense, and/or sell copies 9 * of the Software, and to permit persons to whom the Software is 10 * furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 25 /* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. 26 * Use of this source code is governed by a BSD-style license that can be 27 * found in the LICENSE file. 28 */ 29 30 #ifdef AVB_INSIDE_LIBAVB_H 31 #error "You can't include avb_rsa.h in the public header libavb.h." 32 #endif 33 34 /* 35 #ifndef AVB_COMPILATION 36 #error "Never include this file, it may only be used from internal avb code." 37 #endif 38 */ 39 40 #ifndef AVB_RSA_H_ 41 #define AVB_RSA_H_ 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 #include <android_avb/avb_crypto.h> 48 #include <android_avb/avb_sysdeps.h> 49 50 /* Using the key given by |key|, verify a RSA signature |sig| of 51 * length |sig_num_bytes| against an expected |hash| of length 52 * |hash_num_bytes|. The padding to expect must be passed in using 53 * |padding| of length |padding_num_bytes|. 54 * 55 * The data in |key| must match the format defined in 56 * |AvbRSAPublicKeyHeader|, including the two large numbers 57 * following. The |key_num_bytes| must be the size of the entire 58 * serialized key. 59 * 60 * Returns false if verification fails, true otherwise. 61 */ 62 bool avb_rsa_verify(const uint8_t* key, 63 size_t key_num_bytes, 64 const uint8_t* sig, 65 size_t sig_num_bytes, 66 const uint8_t* hash, 67 size_t hash_num_bytes, 68 const uint8_t* padding, 69 size_t padding_num_bytes) AVB_ATTR_WARN_UNUSED_RESULT; 70 71 #ifdef __cplusplus 72 } 73 #endif 74 75 #endif /* AVB_RSA_H_ */ 76