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This utility reads a binary file, verifies that the first 1024 bytes of the file are set to zero and replaces this block with a header, containing the signature and other information required by the recent CR50 ROM. A test private key is included, it matches the FPGA ROM public key. The use convention is simple: two parameters are required, the private key file name and the binary file name. The signed binary file is saved in the file with extension ".signed". BRANCH=none BUG=chrome-os-partner:43025 TEST=the utility builds using g++ -std=c++0x -I . -o signer codesigner.cc publickey.cc -lcrypto ec.RO.flat signed with this utility can be successfully bootstrapped a CR50 over SPS Change-Id: I046b13d20f0dd8cff884e37ef966593e01dcb043 Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/295208 Reviewed-by: Marius Schilder <mschilder@chromium.org>
30 lines
867 B
C
30 lines
867 B
C
//
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// Copyright 2015 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 __EC_UTIL_SIGNER_SIGNED_HEADER_H
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#define __EC_UTIL_SIGNER_SIGNED_HEADER_H
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#include <string.h>
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#include <inttypes.h>
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typedef struct SignedHeader {
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SignedHeader() : magic(-1), image_size(0) {
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memset(signature, 'S', sizeof(signature));
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memset(tag, 'T', sizeof(tag));
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memset(fusemap, 0, sizeof(fusemap));
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memset(_pad, -1, sizeof(_pad));
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}
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uint32_t magic; // -1
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uint32_t image_size; // != -1
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uint32_t signature[96];
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uint32_t tag[8];
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uint32_t fusemap[32]; // 1024 bits
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uint32_t _pad[256 - 1 - 1 - 96 - 8 - 32];
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} SignedHeader;
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static_assert(sizeof(SignedHeader) == 1024, "SignedHeader should be 1024 bytes");
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#endif // __EC_UTIL_SIGNER_SIGNED_HEADER_H
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