mirror of https://github.com/oxen-io/lokinet
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
942 B
C
53 lines
942 B
C
#ifdef KAT
|
|
#include <stdio.h>
|
|
#endif
|
|
|
|
#include <string.h>
|
|
#include "params.h"
|
|
#include "small.h"
|
|
#include "rq.h"
|
|
#include <sodium/crypto_hash_sha512.h>
|
|
#include <sodium/crypto_kem.h>
|
|
|
|
#ifndef __AVX2__
|
|
#error "This file requires compilation with AVX2 support"
|
|
#endif
|
|
|
|
int
|
|
crypto_kem_enc_avx2(unsigned char *cstr, unsigned char *k,
|
|
const unsigned char *pk)
|
|
{
|
|
small r[768];
|
|
modq h[768];
|
|
modq c[768];
|
|
unsigned char rstr[small_encode_len];
|
|
unsigned char hash[64];
|
|
|
|
small_random_weightw(r);
|
|
|
|
#ifdef KAT
|
|
{
|
|
int i;
|
|
printf("encrypt r:");
|
|
for(i = 0; i < p; ++i)
|
|
if(r[i] == 1)
|
|
printf(" +%d", i);
|
|
else if(r[i] == -1)
|
|
printf(" -%d", i);
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
|
|
small_encode(rstr, r);
|
|
crypto_hash_sha512(hash, rstr, sizeof rstr);
|
|
|
|
rq_decode(h, pk);
|
|
rq_mult(c, h, r);
|
|
|
|
memcpy(k, hash + 32, 32);
|
|
memcpy(cstr, hash, 32);
|
|
rq_roundencode(cstr + 32, c);
|
|
|
|
return 0;
|
|
}
|