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64 lines
2.1 KiB
64 lines
2.1 KiB
4 months ago
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/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Host-side functions for verified boot.
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*/
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#ifndef VBOOT_REFERENCE_HOST_SIGNATURE_H_
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#define VBOOT_REFERENCE_HOST_SIGNATURE_H_
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#include "cryptolib.h"
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#include "host_key.h"
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#include "utility.h"
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#include "vboot_struct.h"
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/* Initialize a signature struct. */
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void SignatureInit(VbSignature* sig, uint8_t* sig_data,
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uint64_t sig_size, uint64_t data_size);
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/* Allocate a new signature with space for a [sig_size] byte signature. */
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VbSignature* SignatureAlloc(uint64_t sig_size, uint64_t data_size);
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/* Copy a signature key from [src] to [dest].
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*
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* Returns 0 if success, non-zero if error. */
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int SignatureCopy(VbSignature* dest, const VbSignature* src);
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/* Calculates a SHA-512 checksum.
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* Caller owns the returned pointer, and must free it with Free().
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*
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* Returns NULL on error. */
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VbSignature* CalculateChecksum(const uint8_t* data, uint64_t size);
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/* Calculates a hash of the data using the algorithm from the specified key.
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* Caller owns the returned pointer, and must free it with Free().
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*
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* Returns NULL on error. */
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VbSignature* CalculateHash(const uint8_t* data, uint64_t size,
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const VbPrivateKey* key);
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/* Calculates a signature for the data using the specified key.
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* Caller owns the returned pointer, and must free it with Free().
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*
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* Returns NULL on error. */
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VbSignature* CalculateSignature(const uint8_t* data, uint64_t size,
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const VbPrivateKey* key);
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/* Calculates a signature for the data using the specified key and
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* an external program.
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* Caller owns the returned pointer, and must free it with Free().
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*
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* Returns NULL on error. */
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VbSignature* CalculateSignature_external(const uint8_t* data, uint64_t size,
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const char* key_file,
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uint64_t key_algorithm,
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const char* external_signer);
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#endif /* VBOOT_REFERENCE_HOST_SIGNATURE_H_ */
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