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814aaf09ce
Refactor futility to use only vboot 2.0 APIs to create signatures. BUG=chromium:611535 BRANCH=none TEST=make runtests Change-Id: I176e7f424fa556d34d8fe691df5681f1e43210ce Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/356128 Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/* 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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struct vb2_private_key;
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struct vb2_signature;
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/**
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* Initialize a signature struct.
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*
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* @param sig Structure to initialize
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* @param sig_data Pointer to signature data buffer (after sig)
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* @param sig_size Size of signature data buffer in bytes
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* @param data_size Amount of data signed in bytes
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*/
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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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void vb2_init_signature(struct vb2_signature *sig, uint8_t *sig_data,
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uint32_t sig_size, uint32_t data_size);
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/**
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* Allocate a new signature.
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*
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* @param sig_size Size of signature in bytes
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* @param data_size Amount of data signed in bytes
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*
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* @return The signature or NULL if error. Caller must free() it.
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*/
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VbSignature* SignatureAlloc(uint64_t sig_size, uint64_t data_size);
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struct vb2_signature *vb2_alloc_signature(uint32_t sig_size,
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uint32_t data_size);
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/**
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* Copy a signature.
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*
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* @param dest Destination signature
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* @param src Source signature
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*
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* @return VB2_SUCCESS, or non-zero if error. */
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int SignatureCopy(VbSignature* dest, const VbSignature* src);
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int vb2_copy_signature(struct vb2_signature *dest,
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const struct vb2_signature *src);
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/**
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* Calculate a SHA-512 digest-only signature.
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*
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* Caller owns the returned pointer, and must free() it.
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*
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* @param data Pointer to data to hash
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* @param size Length of data in bytes
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*
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* @return The signature, or NULL if error.
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*/
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struct vb2_signature *vb2_sha512_signature(const uint8_t *data, uint32_t size);
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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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struct vb2_signature *vb2_calculate_signature(
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const uint8_t *data, uint32_t size,
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const struct vb2_private_key *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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