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/* Copyright (c) 2010 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.
*
* Host-side functions for verified boot.
*/
#ifndef VBOOT_REFERENCE_HOST_SIGNATURE_H_
#define VBOOT_REFERENCE_HOST_SIGNATURE_H_
#include "cryptolib.h"
#include "host_key.h"
#include "utility.h"
#include "vboot_struct.h"
/* Initialize a signature struct. */
void SignatureInit(VbSignature* sig, uint8_t* sig_data,
uint64_t sig_size, uint64_t data_size);
/* Allocate a new signature with space for a [sig_size] byte signature. */
VbSignature* SignatureAlloc(uint64_t sig_size, uint64_t data_size);
/* Copy a signature key from [src] to [dest].
*
* Returns 0 if success, non-zero if error. */
int SignatureCopy(VbSignature* dest, const VbSignature* src);
/* Calculates a SHA-512 checksum.
* Caller owns the returned pointer, and must free it with Free().
*
* Returns NULL if error. */
VbSignature* CalculateChecksum(const uint8_t* data, uint64_t size);
/* Calculates a signature for the data using the specified key.
* Caller owns the returned pointer, and must free it with Free().
*
* Returns NULL if error. */
VbSignature* CalculateSignature(const uint8_t* data, uint64_t size,
const VbPrivateKey* key);
#endif /* VBOOT_REFERENCE_HOST_SIGNATURE_H_ */
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