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crypto: sha3 - Add SHA-3 hash algorithm

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This patch adds the implementation of SHA3 algorithm
in software and it's based on original implementation
pushed in patch https://lwn.net/Articles/518415/ with
additional changes to match the padding rules specified
in SHA-3 specification.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jeff Garzik
2016-06-17 10:30:35 +05:30
committed by Herbert Xu
parent 6999d504d4
commit 53964b9ee6
4 changed files with 340 additions and 0 deletions
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29
include/crypto/sha3.h Normal file
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/*
* Common values for SHA-3 algorithms
*/
#ifndef __CRYPTO_SHA3_H__
#define __CRYPTO_SHA3_H__
#define SHA3_224_DIGEST_SIZE (224 / 8)
#define SHA3_224_BLOCK_SIZE (200 - 2 * SHA3_224_DIGEST_SIZE)
#define SHA3_256_DIGEST_SIZE (256 / 8)
#define SHA3_256_BLOCK_SIZE (200 - 2 * SHA3_256_DIGEST_SIZE)
#define SHA3_384_DIGEST_SIZE (384 / 8)
#define SHA3_384_BLOCK_SIZE (200 - 2 * SHA3_384_DIGEST_SIZE)
#define SHA3_512_DIGEST_SIZE (512 / 8)
#define SHA3_512_BLOCK_SIZE (200 - 2 * SHA3_512_DIGEST_SIZE)
struct sha3_state {
u64 st[25];
unsigned int md_len;
unsigned int rsiz;
unsigned int rsizw;
unsigned int partial;
u8 buf[SHA3_224_BLOCK_SIZE];
};
#endif