mirror of
https://github.com/guanzhi/GmSSL.git
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119 lines
4.2 KiB
C
119 lines
4.2 KiB
C
/*
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* Copyright (c) 2014 - 2021 The GmSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the GmSSL Project.
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* (http://gmssl.org/)"
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*
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* 4. The name "GmSSL Project" must not be used to endorse or promote
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* products derived from this software without prior written
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* permission. For written permission, please contact
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* guanzhi1980@gmail.com.
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*
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* 5. Products derived from this software may not be called "GmSSL"
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* nor may "GmSSL" appear in their names without prior written
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* permission of the GmSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the GmSSL Project
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* (http://gmssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE GmSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* NIST SP800-90A Rev.1 "Recommendation for Random Number Generation
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* Using Deterministic Random Bit Generators", 10.1.1 Hash_DRBG */
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#ifndef GMSSL_HASH_DRBG_H
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#define GMSSL_HASH_DRBG_H
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#include <stdint.h>
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#include <stdlib.h>
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#include <gmssl/digest.h>
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/* seedlen for hash_drgb, table 2 of nist sp 800-90a rev.1 */
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#define HASH_DRBG_SM3_SEED_BITS 440 /* 55 bytes */
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#define HASH_DRBG_SHA1_SEED_BITS 440
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#define HASH_DRBG_SHA224_SEED_BITS 440
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#define HASH_DRBG_SHA512_224_SEED_BITS 440
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#define HASH_DRBG_SHA256_SEED_BITS 440
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#define HASH_DRBG_SHA512_256_SEED_BITS 440
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#define HASH_DRBG_SHA384_SEED_BITS 888 /* 110 bytes */
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#define HASH_DRBG_SHA512_SEED_BITS 888
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#define HASH_DRBG_MAX_SEED_BITS 888
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#define HASH_DRBG_SM3_SEED_SIZE (HASH_DRBG_SM3_SEED_BITS/8)
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#define HASH_DRBG_SHA1_SEED_SIZE (HASH_DRBG_SHA1_SEED_BITS/8)
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#define HASH_DRBG_SHA224_SEED_SIZE (HASH_DRBG_SHA224_SEED_BITS/8)
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#define HASH_DRBG_SHA512_224_SEED_SIZE (HASH_DRBG_SHA512_224_SEED_BITS/8)
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#define HASH_DRBG_SHA256_SEED_SIZE (HASH_DRBG_SHA256_SEED_BITS/8)
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#define HASH_DRBG_SHA512_256_SEED_SIZE (HASH_DRBG_SHA512_256_SEED_BITS/8)
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#define HASH_DRBG_SHA384_SEED_SIZE (HASH_DRBG_SHA384_SEED_BITS/8)
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#define HASH_DRBG_SHA512_SEED_SIZE (HASH_DRBG_SHA512_SEED_BITS/8)
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#define HASH_DRBG_MAX_SEED_SIZE (HASH_DRBG_MAX_SEED_BITS/8)
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#define HASH_DRBG_RESEED_INTERVAL ((uint64_t)1 << 48)
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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const DIGEST *digest;
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uint8_t V[HASH_DRBG_MAX_SEED_SIZE];
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uint8_t C[HASH_DRBG_MAX_SEED_SIZE];
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size_t seedlen;
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uint64_t reseed_counter;
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} HASH_DRBG;
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int hash_drbg_init(HASH_DRBG *drbg,
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const DIGEST *digest,
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const uint8_t *entropy, size_t entropy_len,
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const uint8_t *nonce, size_t nonce_len,
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const uint8_t *personalstr, size_t personalstr_len);
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int hash_drbg_reseed(HASH_DRBG *drbg,
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const uint8_t *entropy, size_t entropy_len,
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const uint8_t *additional, size_t additional_len);
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int hash_drbg_generate(HASH_DRBG *drbg,
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const uint8_t *additional, size_t additional_len,
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size_t outlen, uint8_t *out);
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void hash_drbg_cleanup(HASH_DRBG *drbg);
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#ifdef __cplusplus
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}
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#endif
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#endif
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