1 files changed, 0 insertions, 78 deletions
diff --git a/libkeccak_hmac_fast_digest.c b/libkeccak_hmac_fast_digest.c
deleted file mode 100644
index db242a5..0000000
--- a/libkeccak_hmac_fast_digest.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/* See LICENSE file for copyright and license details. */
-#include "common.h"
-
-
-/**
- * Absorb the last part of the message and fetch the hash
- * without wiping sensitive data when possible
- * 
- * You may use `&state->sponge` for continued squeezing
- * 
- * @param   state    The hashing state
- * @param   msg_     The rest of the message, may be `NULL`, may be modified
- * @param   msglen   The length of the partial message
- * @param   bits     The number of bits at the end of the message not covered by `msglen`
- * @param   suffix   The suffix concatenate to the message, only '1':s and '0':s, and NUL-termination
- * @param   hashsum  Output parameter for the hashsum, may be `NULL`
- * @return           Zero on success, -1 on error
- */
-int
-libkeccak_hmac_fast_digest(struct libkeccak_hmac_state *restrict state, const void *restrict msg_, size_t msglen,
-                           size_t bits, const char *restrict suffix, void *restrict hashsum)
-{
-	const unsigned char *restrict msg = msg_;
-	size_t hashsize = (size_t)state->sponge.n >> 3;
-	unsigned char *tmp = malloc((size_t)((state->sponge.n + 7) >> 3) * sizeof(char));
-	unsigned char leftover[2];
-	size_t newlen;
-
-	if (!tmp)
-		return -1;
-
-	if (!(state->key_length & 7)) {
-		if (libkeccak_fast_digest(&state->sponge, msg, msglen, bits, suffix, tmp) < 0)
-			goto fail;
-		goto stage_2;
-	}
-
-	if (libkeccak_hmac_fast_update(state, msg, msglen) < 0)
-		goto fail;
-	leftover[0] = state->leftover;
-	if (bits) {
-		leftover[0] |= (unsigned char)(msg[msglen] >> (state->key_length & 7));
-		leftover[1] = (unsigned char)(msg[msglen] << (8 - (state->key_length & 7)));
-	}
-	newlen = (state->key_length & 7) + bits;
-	if (libkeccak_fast_digest(&state->sponge, leftover, newlen >> 3, newlen & 7, suffix, tmp) < 0)
-		goto fail;
-
-stage_2:
-	bits = state->sponge.n & 7;
-	state->key_ipad = state->key_opad;
-	if (libkeccak_hmac_fast_update(state, NULL, 0) < 0)
-		goto fail;
-
-	if (!(state->key_length & 7)) {
-		if (libkeccak_fast_digest(&state->sponge, tmp, hashsize, bits, suffix, hashsum) < 0)
-			goto fail;
-		goto stage_3;
-	}
-
-	if (libkeccak_hmac_fast_update(state, tmp, hashsize) < 0)
-		goto fail;
-	leftover[0] = state->leftover;
-	if (bits) {
-		leftover[0] |= (unsigned char)(tmp[hashsize] >> (state->key_length & 7));
-		leftover[1] = (unsigned char)(tmp[hashsize] << (8 - (state->key_length & 7)));
-	}
-	newlen = (state->key_length & 7) + bits;
-	if (libkeccak_fast_digest(&state->sponge, leftover, newlen >> 3, newlen & 7, suffix, tmp) < 0)
-		goto fail;
-
-stage_3:
-	free(tmp);
-	return 0;
-fail:
-	free(tmp);
-	return -1;
-}