e09e579603
This is consistent with the new convention in ssl_ecdh.c. Along the way, change newhope_test.c to not iterate 1000 times over each test. Change-Id: I7a500f45b838eba8f6df96957891aa8e880ba089 Reviewed-on: https://boringssl-review.googlesource.com/8012 Reviewed-by: David Benjamin <davidben@google.com>
80 lines
3.3 KiB
C
80 lines
3.3 KiB
C
/* Copyright (c) 2016, Google Inc.
|
|
*
|
|
* 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. */
|
|
|
|
#ifndef OPENSSL_HEADER_NEWHOPE_H
|
|
#define OPENSSL_HEADER_NEWHOPE_H
|
|
|
|
#include <openssl/base.h>
|
|
#include <openssl/sha.h>
|
|
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/* Post-quantum key agreement, based upon the reference
|
|
* implementation. Note: this implementation does not interoperate
|
|
* with the reference implementation!
|
|
*
|
|
* Source: https://github.com/tpoeppelmann/newhope
|
|
*
|
|
* The authors' permission to use their code is gratefully acknowledged. */
|
|
|
|
|
|
/* NEWHOPE_POLY_new returns a new |NEWHOPE_POLY| object, or NULL on error. */
|
|
OPENSSL_EXPORT NEWHOPE_POLY *NEWHOPE_POLY_new(void);
|
|
|
|
/* NEWHOPE_POLY_free frees |p|. */
|
|
OPENSSL_EXPORT void NEWHOPE_POLY_free(NEWHOPE_POLY *p);
|
|
|
|
/* NEWHOPE_OFFERMSG_LENGTH is the length of the offering party's message to the
|
|
* accepting party. */
|
|
#define NEWHOPE_OFFERMSG_LENGTH (((1024 * 14) / 8) + 32)
|
|
|
|
/* NEWHOPE_ACCEPTMSG_LENGTH is the length of the accepting party's message to
|
|
* the offering party. */
|
|
#define NEWHOPE_ACCEPTMSG_LENGTH (((1024 * 14) / 8) + 1024 / 4)
|
|
|
|
/* NEWHOPE_offer initializes |out_msg| and |out_sk| for a new key
|
|
* exchange. |msg| must have room for |NEWHOPE_OFFERMSG_LENGTH| bytes. Neither
|
|
* output may be cached. */
|
|
OPENSSL_EXPORT void NEWHOPE_offer(uint8_t out_msg[NEWHOPE_OFFERMSG_LENGTH],
|
|
NEWHOPE_POLY *out_sk);
|
|
|
|
/* NEWHOPE_accept completes a key exchange given an offer message |msg|. The
|
|
* result of the key exchange is written to |out_key|, which must have space for
|
|
* |SHA256_DIGEST_LENGTH| bytes. The message to be send to the offering party is
|
|
* written to |out_msg|, which must have room for |NEWHOPE_ACCEPTMSG_LENGTH|
|
|
* bytes. Returns 1 on success and 0 on error. */
|
|
OPENSSL_EXPORT int NEWHOPE_accept(uint8_t out_key[SHA256_DIGEST_LENGTH],
|
|
uint8_t out_msg[NEWHOPE_ACCEPTMSG_LENGTH],
|
|
const uint8_t msg[NEWHOPE_OFFERMSG_LENGTH],
|
|
size_t msg_len);
|
|
|
|
/* NEWHOPE_finish completes a key exchange for the offering party, given an
|
|
* accept message |msg| and the previously generated secret |sk|. The result of
|
|
* the key exchange is written to |out_key|, which must have space for
|
|
* |SHA256_DIGEST_LENGTH| bytes. Returns 1 on success and 0 on error. */
|
|
OPENSSL_EXPORT int NEWHOPE_finish(uint8_t out_key[SHA256_DIGEST_LENGTH],
|
|
const NEWHOPE_POLY *sk,
|
|
const uint8_t msg[NEWHOPE_ACCEPTMSG_LENGTH],
|
|
size_t msg_len);
|
|
|
|
|
|
#if defined(__cplusplus)
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif /* OPENSSL_HEADER_NEWHOPE_H */
|