avb_rsa.h
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/* SPDX-License-Identifier: MIT OR BSD-3-Clause */
/*
* Copyright (C) 2016 The Android Open Source Project
*/
/* 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 AVB_INSIDE_LIBAVB_H
#error "You can't include avb_rsa.h in the public header libavb.h."
#endif
#ifndef AVB_COMPILATION
#error "Never include this file, it may only be used from internal avb code."
#endif
#ifndef AVB_RSA_H_
#define AVB_RSA_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "avb_crypto.h"
#include "avb_sysdeps.h"
/* Using the key given by |key|, 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
* |AvbRSAPublicKeyHeader|, including the two large numbers
* following. The |key_num_bytes| must be the size of the entire
* serialized key.
*
* Returns false if verification fails, true otherwise.
*/
bool avb_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) AVB_ATTR_WARN_UNUSED_RESULT;
#ifdef __cplusplus
}
#endif
#endif /* AVB_RSA_H_ */