1 files changed, 0 insertions, 51 deletions
diff --git a/lib/liboqs/src/kem/kyber/pqcrystals-kyber_kyber512_ref/symmetric-shake.c b/lib/liboqs/src/kem/kyber/pqcrystals-kyber_kyber512_ref/symmetric-shake.c
deleted file mode 100644
index 2317c0627..000000000
--- a/lib/liboqs/src/kem/kyber/pqcrystals-kyber_kyber512_ref/symmetric-shake.c
+++ /dev/null
@@ -1,51 +0,0 @@
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
-#include "params.h"
-#include "symmetric.h"
-#include "fips202.h"
-
-/*************************************************
-* Name:        kyber_shake128_absorb
-*
-* Description: Absorb step of the SHAKE128 specialized for the Kyber context.
-*
-* Arguments:   - keccak_state *state: pointer to (uninitialized) output Keccak state
-*              - const uint8_t *seed: pointer to KYBER_SYMBYTES input to be absorbed into state
-*              - uint8_t i: additional byte of input
-*              - uint8_t j: additional byte of input
-**************************************************/
-void kyber_shake128_absorb(shake128incctx *state,
-                           const uint8_t seed[KYBER_SYMBYTES],
-                           uint8_t x,
-                           uint8_t y)
-{
-  uint8_t extseed[KYBER_SYMBYTES+2];
-
-  memcpy(extseed, seed, KYBER_SYMBYTES);
-  extseed[KYBER_SYMBYTES+0] = x;
-  extseed[KYBER_SYMBYTES+1] = y;
-
-  shake128_absorb_once(state, extseed, sizeof(extseed));
-}
-
-/*************************************************
-* Name:        kyber_shake256_prf
-*
-* Description: Usage of SHAKE256 as a PRF, concatenates secret and public input
-*              and then generates outlen bytes of SHAKE256 output
-*
-* Arguments:   - uint8_t *out: pointer to output
-*              - size_t outlen: number of requested output bytes
-*              - const uint8_t *key: pointer to the key (of length KYBER_SYMBYTES)
-*              - uint8_t nonce: single-byte nonce (public PRF input)
-**************************************************/
-void kyber_shake256_prf(uint8_t *out, size_t outlen, const uint8_t key[KYBER_SYMBYTES], uint8_t nonce)
-{
-  uint8_t extkey[KYBER_SYMBYTES+1];
-
-  memcpy(extkey, key, KYBER_SYMBYTES);
-  extkey[KYBER_SYMBYTES] = nonce;
-
-  shake256(out, outlen, extkey, sizeof(extkey));
-}