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21c3f7fef7
This reverts commit e018a80a37aaa45681f45f5852f04d20aedd8b2d. Review URL: http://codereview.chromium.org/1593002
38 lines
1.3 KiB
C
38 lines
1.3 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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#ifndef VBOOT_REFERENCE_RSA_H_
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#define VBOOT_REFERENCE_RSA_H_
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#include <inttypes.h>
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#define RSA1024NUMBYTES 128 /* 1024 bit key length */
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#define RSA2048NUMBYTES 256 /* 2048 bit key length */
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#define RSA4096NUMBYTES 512 /* 4096 bit key length */
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#define RSA8192NUMBYTES 1024 /* 8192 bit key length */
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#define RSA1024NUMWORDS (RSA1024NUMBYTES / sizeof(uint32_t))
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#define RSA2048NUMWORDS (RSA2048NUMBYTES / sizeof(uint32_t))
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#define RSA4096NUMWORDS (RSA4096NUMBYTES / sizeof(uint32_t))
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#define RSA8192NUMWORDS (RSA8192NUMBYTES / sizeof(uint32_t))
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typedef struct RSAPublicKey {
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int len; /* Length of n[] in number of uint32_t */
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uint32_t n0inv; /* -1 / n[0] mod 2^32 */
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uint32_t* n; /* modulus as little endian array */
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uint32_t* rr; /* R^2 as little endian array */
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} RSAPublicKey;
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/* Verify a RSA PKCS1.5 signature [sig] of [sig_type] and length [sig_len]
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* against an expected [hash] using [key]. Returns 0 on failure, 1 on success.
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*/
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int RSAVerify(const RSAPublicKey *key,
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const uint8_t* sig,
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const int sig_len,
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const uint8_t sig_type,
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const uint8_t* hash);
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#endif /* VBOOT_REFERENCE_RSA_H_ */
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