mirror of
https://github.com/henrydcase/pqc.git
synced 2024-11-26 17:31:38 +00:00
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
#include "kex.h"
|
|
#include "verify.h"
|
|
#include "fips202.h"
|
|
|
|
void kyber_uake_initA(u8 *send, u8* tk, u8 *sk, const u8 *pkb)
|
|
{
|
|
crypto_kem_keypair(send, sk);
|
|
crypto_kem_enc(send+KYBER_PUBLICKEYBYTES, tk, pkb);
|
|
}
|
|
|
|
void kyber_uake_sharedB(u8 *send, u8 *k, const u8* recv, const u8 *skb)
|
|
{
|
|
unsigned char buf[2*KYBER_SYMBYTES];
|
|
crypto_kem_enc(send, buf, recv);
|
|
crypto_kem_dec(buf+KYBER_SYMBYTES, recv+KYBER_PUBLICKEYBYTES, skb);
|
|
shake256(k,KYBER_SYMBYTES,buf,2*KYBER_SYMBYTES);
|
|
}
|
|
|
|
void kyber_uake_sharedA(u8 *k, const u8 *recv, const u8 *tk, const u8 *sk)
|
|
{
|
|
unsigned char buf[2*KYBER_SYMBYTES];
|
|
int i;
|
|
crypto_kem_dec(buf, recv, sk);
|
|
for(i=0;i<KYBER_SYMBYTES;i++)
|
|
buf[i+KYBER_SYMBYTES] = tk[i];
|
|
shake256(k,KYBER_SYMBYTES,buf,2*KYBER_SYMBYTES);
|
|
}
|
|
|
|
|
|
|
|
void kyber_ake_initA(u8 *send, u8* tk, u8 *sk, const u8 *pkb)
|
|
{
|
|
crypto_kem_keypair(send, sk);
|
|
crypto_kem_enc(send+KYBER_PUBLICKEYBYTES, tk, pkb);
|
|
}
|
|
|
|
void kyber_ake_sharedB(u8 *send, u8 *k, const u8* recv, const u8 *skb, const u8 *pka)
|
|
{
|
|
unsigned char buf[3*KYBER_SYMBYTES];
|
|
crypto_kem_enc(send, buf, recv);
|
|
crypto_kem_enc(send+KYBER_CIPHERTEXTBYTES, buf+KYBER_SYMBYTES, pka);
|
|
crypto_kem_dec(buf+2*KYBER_SYMBYTES, recv+KYBER_PUBLICKEYBYTES, skb);
|
|
shake256(k,KYBER_SYMBYTES,buf,3*KYBER_SYMBYTES);
|
|
}
|
|
|
|
void kyber_ake_sharedA(u8 *k, const u8 *recv, const u8 *tk, const u8 *sk, const u8 *ska)
|
|
{
|
|
unsigned char buf[3*KYBER_SYMBYTES];
|
|
int i;
|
|
crypto_kem_dec(buf, recv, sk);
|
|
crypto_kem_dec(buf+KYBER_SYMBYTES, recv+KYBER_CIPHERTEXTBYTES, ska);
|
|
for(i=0;i<KYBER_SYMBYTES;i++)
|
|
buf[i+2*KYBER_SYMBYTES] = tk[i];
|
|
shake256(k,KYBER_SYMBYTES,buf,3*KYBER_SYMBYTES);
|
|
}
|