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/* $OpenBSD: mlkem_tests_util.c,v 1.5 2024/12/26 00:04:24 tb Exp $ */
/*
* Copyright (c) 2024 Google Inc.
* Copyright (c) 2024 Bob Beck <beck@obtuse.com>
* Copyright (c) 2024 Theo Buehler <tb@openbsd.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <err.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "bytestring.h"
#include "mlkem.h"
#include "mlkem_internal.h"
#include "mlkem_tests_util.h"
static void
hexdump(const uint8_t *buf, size_t len, const uint8_t *compare)
{
const char *mark = "";
size_t i;
for (i = 1; i <= len; i++) {
if (compare != NULL)
mark = (buf[i - 1] != compare[i - 1]) ? "*" : " ";
fprintf(stderr, " %s0x%02hhx,%s", mark, buf[i - 1],
i % 8 && i != len ? "" : "\n");
}
fprintf(stderr, "\n");
}
int
compare_data(const uint8_t *want, const uint8_t *got, size_t len, const char *msg)
{
if (memcmp(want, got, len) == 0)
return 0;
warnx("FAIL: %s differs", msg);
fprintf(stderr, "want:\n");
hexdump(want, len, got);
fprintf(stderr, "got:\n");
hexdump(got, len, want);
fprintf(stderr, "\n");
return 1;
}
int
mlkem768_encode_private_key(const void *private_key, uint8_t **out_buf,
size_t *out_len)
{
CBB cbb;
int ret = 0;
if (!CBB_init(&cbb, MLKEM768_PUBLIC_KEY_BYTES))
goto err;
if (!MLKEM768_marshal_private_key(&cbb, private_key))
goto err;
if (!CBB_finish(&cbb, out_buf, out_len))
goto err;
ret = 1;
err:
CBB_cleanup(&cbb);
return ret;
}
int
mlkem768_encode_public_key(const void *public_key, uint8_t **out_buf,
size_t *out_len)
{
CBB cbb;
int ret = 0;
if (!CBB_init(&cbb, MLKEM768_PUBLIC_KEY_BYTES))
goto err;
if (!MLKEM768_marshal_public_key(&cbb, public_key))
goto err;
if (!CBB_finish(&cbb, out_buf, out_len))
goto err;
ret = 1;
err:
CBB_cleanup(&cbb);
return ret;
}
int
mlkem1024_encode_private_key(const void *private_key, uint8_t **out_buf,
size_t *out_len)
{
CBB cbb;
int ret = 0;
if (!CBB_init(&cbb, MLKEM1024_PUBLIC_KEY_BYTES))
goto err;
if (!MLKEM1024_marshal_private_key(&cbb, private_key))
goto err;
if (!CBB_finish(&cbb, out_buf, out_len))
goto err;
ret = 1;
err:
CBB_cleanup(&cbb);
return ret;
}
int
mlkem1024_encode_public_key(const void *public_key, uint8_t **out_buf,
size_t *out_len)
{
CBB cbb;
int ret = 0;
if (!CBB_init(&cbb, MLKEM1024_PUBLIC_KEY_BYTES))
goto err;
if (!MLKEM1024_marshal_public_key(&cbb, public_key))
goto err;
if (!CBB_finish(&cbb, out_buf, out_len))
goto err;
ret = 1;
err:
CBB_cleanup(&cbb);
return ret;
}
int
mlkem768_decap(uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
const uint8_t *ciphertext, size_t ciphertext_len, const void *private_key)
{
return MLKEM768_decap(out_shared_secret, ciphertext, ciphertext_len,
private_key);
}
void
mlkem768_encap(uint8_t *out_ciphertext,
uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
const void *public_key)
{
MLKEM768_encap(out_ciphertext, out_shared_secret, public_key);
}
void
mlkem768_encap_external_entropy(uint8_t *out_ciphertext,
uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
const void *public_key, const uint8_t entropy[MLKEM_ENCAP_ENTROPY])
{
MLKEM768_encap_external_entropy(out_ciphertext, out_shared_secret,
public_key, entropy);
}
void
mlkem768_generate_key(uint8_t *out_encoded_public_key,
uint8_t optional_out_seed[MLKEM_SEED_BYTES], void *out_private_key)
{
MLKEM768_generate_key(out_encoded_public_key, optional_out_seed,
out_private_key);
}
void
mlkem768_generate_key_external_entropy(uint8_t *out_encoded_public_key,
void *out_private_key, const uint8_t entropy[MLKEM_SEED_BYTES])
{
MLKEM768_generate_key_external_entropy(out_encoded_public_key,
out_private_key, entropy);
}
int
mlkem768_parse_private_key(void *out_private_key, CBS *private_key_cbs)
{
return MLKEM768_parse_private_key(out_private_key, private_key_cbs);
}
int
mlkem768_parse_public_key(void *out_public_key, CBS *public_key_cbs)
{
return MLKEM768_parse_public_key(out_public_key, public_key_cbs);
}
void
mlkem768_public_from_private(void *out_public_key, const void *private_key)
{
MLKEM768_public_from_private(out_public_key, private_key);
}
int
mlkem1024_decap(uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
const uint8_t *ciphertext, size_t ciphertext_len, const void *private_key)
{
return MLKEM1024_decap(out_shared_secret, ciphertext, ciphertext_len,
private_key);
}
void
mlkem1024_encap(uint8_t *out_ciphertext,
uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
const void *public_key)
{
MLKEM1024_encap(out_ciphertext, out_shared_secret, public_key);
}
void
mlkem1024_encap_external_entropy(uint8_t *out_ciphertext,
uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
const void *public_key, const uint8_t entropy[MLKEM_ENCAP_ENTROPY])
{
MLKEM1024_encap_external_entropy(out_ciphertext, out_shared_secret,
public_key, entropy);
}
void
mlkem1024_generate_key(uint8_t *out_encoded_public_key,
uint8_t optional_out_seed[MLKEM_SEED_BYTES], void *out_private_key)
{
MLKEM1024_generate_key(out_encoded_public_key, optional_out_seed,
out_private_key);
}
void
mlkem1024_generate_key_external_entropy(uint8_t *out_encoded_public_key,
void *out_private_key, const uint8_t entropy[MLKEM_SEED_BYTES])
{
MLKEM1024_generate_key_external_entropy(out_encoded_public_key,
out_private_key, entropy);
}
int
mlkem1024_parse_private_key(void *out_private_key, CBS *private_key_cbs)
{
return MLKEM1024_parse_private_key(out_private_key, private_key_cbs);
}
void
mlkem1024_public_from_private(void *out_public_key, const void *private_key)
{
MLKEM1024_public_from_private(out_public_key, private_key);
}
int
mlkem1024_parse_public_key(void *out_public_key, CBS *public_key_cbs)
{
return MLKEM1024_parse_public_key(out_public_key, public_key_cbs);
}
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