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f3f9e00ef0
This patch adds HMAC. HMAC will be used to sign/verify NVM structures. Hash algorithms can be selected from those supported by enum vb2_hash_algorithm (i.e. SHA1, SHA256, or SHA512). BUG=chrome-os-partner:51907 BRANCH=tot TEST=make runtests Change-Id: I6d349bc807874fe2a5512aabcd7fbf67a4eaa40a Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/342880 Reviewed-by: Randall Spangler <rspangler@chromium.org>
30 lines
762 B
C
30 lines
762 B
C
/* Copyright 2016 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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#ifndef VBOOT_REFERENCE_VBOOT_2HMAC_H_
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#define VBOOT_REFERENCE_VBOOT_2HMAC_H_
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#include <stdint.h>
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#include "2crypto.h"
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/**
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* Compute HMAC
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*
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* @param alg Hash algorithm ID
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* @param key HMAC key
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* @param key_size HMAC key size
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* @param msg Message to compute HMAC for
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* @param msg_size Message size
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* @param mac Computed message authentication code
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* @param mac_size Size of the buffer pointed by <mac>
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* @return
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*/
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int hmac(enum vb2_hash_algorithm alg,
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const void *key, uint32_t key_size,
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const void *msg, uint32_t msg_size,
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uint8_t *mac, uint32_t mac_size);
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#endif
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