mirror of
https://github.com/henrydcase/pqc.git
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59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
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* Copyright (C) 2021 - 2022, Stephan Mueller <smueller@chronox.de>
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*
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* License: see LICENSE file in root directory
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
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* WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*/
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#ifndef JITTERENTROPY_SHA3_H
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#define JITTERENTROPY_SHA3_H
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#include "jitterentropy.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#define SHA3_SIZE_BLOCK(bits) ((1600 - 2 * bits) >> 3)
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#define SHA3_256_SIZE_BLOCK SHA3_SIZE_BLOCK(SHA3_256_SIZE_DIGEST_BITS)
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#define SHA3_MAX_SIZE_BLOCK SHA3_256_SIZE_BLOCK
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struct sha_ctx {
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uint64_t state[25];
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size_t msg_len;
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unsigned int r;
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unsigned int rword;
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unsigned int digestsize;
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uint8_t partial[SHA3_MAX_SIZE_BLOCK];
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};
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#define SHA_MAX_CTX_SIZE (sizeof(struct sha_ctx))
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#define HASH_CTX_ON_STACK(name) \
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struct sha_ctx name
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void sha3_256_init(struct sha_ctx *ctx);
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void sha3_update(struct sha_ctx *ctx, const uint8_t *in, size_t inlen);
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void sha3_final(struct sha_ctx *ctx, uint8_t *digest);
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int sha3_alloc(void **hash_state);
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void sha3_dealloc(void *hash_state);
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int sha3_tester(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* JITTERENTROPY_SHA3_H */
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