gestumblinde

Gestumblinde - reference implementation of SLH-DSA
git clone git://www.tkruger.se/gestumblinde.git
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hash.h (1881B)

      1 #ifndef HASH_H
      2 #define HASH_H
      3 
      4 #include "context.h"
      5 #include <stdint.h>
      6 #include <stdlib.h>
      7 
      8 #if defined(SLH_DSA_SHAKE_128S) || defined(SLH_DSA_SHAKE_128F) ||              \
      9     defined(SLH_DSA_SHAKE_192S) || defined(SLH_DSA_SHAKE_192F) ||              \
     10     defined(SLH_DSA_SHAKE_256S) || defined(SLH_DSA_SHAKE_256F)
     11 
     12 #include <sha3.h>
     13 
     14 #define hash_h(out, pk_seed, adrs, m) (hash_t(out, 2, pk_seed, adrs, m))
     15 #define hash_f(out, pk_seed, adrs, m) (hash_t(out, 1, pk_seed, adrs, m))
     16 #define hash_prf(out, pk_seed, sk_seed, adrs)                                  \
     17   (hash_t(out, 1, pk_seed, adrs, sk_seed))
     18 
     19 #else
     20 
     21 #include <openssl/evp.h>
     22 #include <openssl/hmac.h>
     23 #include <openssl/sha.h>
     24 #include <stdio.h>
     25 #include <string.h>
     26 
     27 #define hash_h(out, pk_seed, adrs, m) (hash_t(out, 2, pk_seed, adrs, m))
     28 
     29 #if defined(SLH_DSA_SHA2_192S) || defined(SLH_DSA_SHA2_192F) ||                \
     30     defined(SLH_DSA_SHA2_256S) || defined(SLH_DSA_SHA2_256F)
     31 
     32 void hash_f(uint8_t *out, const uint8_t pk_seed[ENN],
     33             const uint32_t adrs[ADRS_LEN], const uint8_t *m1);
     34 #define hash_prf(out, pk_seed, sk_seed, adrs)                                  \
     35   (hash_f(out, pk_seed, adrs, sk_seed))
     36 
     37 #else
     38 
     39 #define hash_f(out, pk_seed, adrs, m) (hash_t(out, 1, pk_seed, adrs, m))
     40 #define hash_prf(out, pk_seed, sk_seed, adrs)                                  \
     41   (hash_t(out, 1, pk_seed, adrs, sk_seed))
     42 
     43 #endif
     44 
     45 #endif
     46 
     47 void hash_t(uint8_t *out, const size_t len, const uint8_t pk_seed[ENN],
     48             const uint32_t adrs[ADRS_LEN], const uint8_t *m_ell);
     49 
     50 void hash_prf_msg(uint8_t *out, const uint8_t *sk_prf, const uint8_t *opt_rand,
     51                   const uint8_t *m, const size_t mlen);
     52 
     53 void hash_h_msg(uint8_t *out, const size_t out_len, const uint8_t *r,
     54                 const uint8_t *pk_seed, const uint8_t *pk_root,
     55                 const uint8_t *m, const size_t mlen);
     56 
     57 #endif