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626e0b034d
This patch adds code which dervies secrets from BDS. It's supposed to be done by SP-RO, hence the code is mostly useful for testing (or emulation). vba_extend_secrets_ro takes a function pointer to a hash extend function. It'll be used to try different sha256 extend algorithms. BUG=chromium:649555 BRANCH=none TEST=make runtests Change-Id: I8fef6b851fb84686d8bcdd948b36160016687c51 Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/384354 Reviewed-by: Randall Spangler <rspangler@chromium.org>
36 lines
917 B
C
36 lines
917 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_FIRMWARE_BDB_SECRETS_H_
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#define VBOOT_REFERENCE_FIRMWARE_BDB_SECRETS_H_
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#define BDB_SECRET_SIZE 32
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#define BDB_CONSTANT_BLOCK_SIZE 64
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enum bdb_secret_type {
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BDB_SECRET_TYPE_WSR,
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BDB_SECRET_TYPE_NVM_WP,
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BDB_SECRET_TYPE_NVM_RW,
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BDB_SECRET_TYPE_BDB,
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BDB_SECRET_TYPE_BOOT_VERIFIED,
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BDB_SECRET_TYPE_BOOT_PATH,
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BDB_SECRET_TYPE_BUC,
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BDB_SECRET_TYPE_COUNT, /* Last entry. Add new secrets before this. */
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};
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/*
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* Struct storing BDB secrets passed between SP-RO and SP-RW.
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*/
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struct bdb_secrets {
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uint8_t nvm_rw[BDB_SECRET_SIZE];
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uint8_t bdb[BDB_SECRET_SIZE];
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uint8_t boot_verified[BDB_SECRET_SIZE];
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uint8_t boot_path[BDB_SECRET_SIZE];
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uint8_t nvm_wp[BDB_SECRET_SIZE];
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uint8_t buc[BDB_SECRET_SIZE];
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};
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#endif
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