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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>
102 lines
3.2 KiB
C
102 lines
3.2 KiB
C
/* Copyright (c) 2014 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 key structures
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*/
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#ifndef VBOOT_REFERENCE_HOST_SIGNATURE2_H_
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#define VBOOT_REFERENCE_HOST_SIGNATURE2_H_
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#include "2struct.h"
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struct vb2_private_key;
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struct vb21_signature;
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/**
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* Get the digest info for a hash algorithm
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*
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* @param hash_alg Hash algorithm
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* @param buf_ptr On success, points to the digest info
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* @param size_ptr On success, contains the info size in bytes
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* @return VB2_SUCCESS, or non-zero error code on failure.
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*/
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int vb2_digest_info(enum vb2_hash_algorithm hash_alg,
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const uint8_t **buf_ptr,
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uint32_t *size_ptr);
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/**
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* Sign data buffer
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*
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* @param sig_ptr On success, points to a newly allocated signature.
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* Caller is responsible for calling free() on this.
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* @param data Pointer to data to sign
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* @param size Size of data to sign in bytes
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* @param key Private key to use to sign data
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* @param desc Optional description for signature. If NULL, the
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* key description will be used.
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* @return VB2_SUCCESS, or non-zero error code on failure.
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*/
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int vb21_sign_data(struct vb21_signature **sig_ptr,
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const uint8_t *data,
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uint32_t size,
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const struct vb2_private_key *key,
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const char *desc);
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/**
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* Calculate the signature size for a private key.
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*
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* @param size_ptr On success, contains the signature size in bytes.
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* @param key Key to calculate signature length from.
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* @param desc Optional description for signature. If NULL, the
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* key description will be used.
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* @return VB2_SUCCESS, or non-zero error code on failure.
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*/
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int vb21_sig_size_for_key(uint32_t *size_ptr,
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const struct vb2_private_key *key,
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const char *desc);
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/**
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* Calculate the total signature size for a list of keys.
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*
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* @param size_ptr On success, contains the signature size in bytes.
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* @param key_list List of keys to calculate signature length from.
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* @param key_count Number of keys.
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* @return VB2_SUCCESS, or non-zero error code on failure.
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*/
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int vb21_sig_size_for_keys(uint32_t *size_ptr,
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const struct vb2_private_key **key_list,
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uint32_t key_count);
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/**
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* Sign object with a key.
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*
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* @param buf Buffer containing object to sign, starting with
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* common header
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* @param sig_offset Offset in buffer at which to store signature. All
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* data before this in the buffer will be signed.
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* @param key Key to sign object with
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* @param desc If non-null, description to use for signature
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*/
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int vb21_sign_object(uint8_t *buf,
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uint32_t sig_offset,
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const struct vb2_private_key *key,
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const char *desc);
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/**
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* Sign object with list of keys.
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*
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* @param buf Buffer containing object to sign, starting with
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* common header
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* @param sig_offset Offset to start signatures. All data before this
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* in the buffer will be signed.
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* @param key_list List of keys to sign object with
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* @param key_count Number of keys in list
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*/
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int vb21_sign_object_multiple(uint8_t *buf,
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uint32_t sig_offset,
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const struct vb2_private_key **key_list,
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uint32_t key_count);
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#endif /* VBOOT_REFERENCE_HOST_SIGNATURE2_H_ */
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