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3f5616d734
The core SipHash supports either 8 or 16-byte output and a configurable number of rounds. The default behavior, as added to EVP, is to use 16-byte output and 2,4 rounds, which matches the behavior of most implementations. There is an EVP_PKEY_CTRL that can control the output size. Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2216)
25 lines
858 B
C
25 lines
858 B
C
/*
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* Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stddef.h>
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#define SIPHASH_BLOCK_SIZE 8
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#define SIPHASH_KEY_SIZE 16
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#define SIPHASH_MIN_DIGEST_SIZE 8
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#define SIPHASH_MAX_DIGEST_SIZE 16
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typedef struct siphash_st SIPHASH;
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size_t SipHash_ctx_size(void);
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size_t SipHash_hash_size(SIPHASH *ctx);
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int SipHash_Init(SIPHASH *ctx, const unsigned char *k, int hash_size,
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int crounds, int drounds);
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void SipHash_Update(SIPHASH *ctx, const unsigned char *in, size_t inlen);
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int SipHash_Final(SIPHASH *ctx, unsigned char *out, size_t outlen);
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