--- /dev/null
+// This file is dual-licensed. Choose whichever licence you want from
+// the two licences listed below.
+//
+// The first licence is a regular 2-clause BSD licence. The second licence
+// is the CC-0 from Creative Commons. It is intended to release Monocypher
+// to the public domain. The BSD licence serves as a fallback option.
+//
+// SPDX-License-Identifier: BSD-2-Clause OR CC0-1.0
+//
+// ------------------------------------------------------------------------
+//
+// Copyright (c) 2017-2020, Loup Vaillant
+// All rights reserved.
+//
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// 1. Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the
+// distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ------------------------------------------------------------------------
+//
+// Written in 2020 by Loup Vaillant
+//
+// To the extent possible under law, the author(s) have dedicated all copyright
+// and related neighboring rights to this software to the public domain
+// worldwide. This software is distributed without any warranty.
+//
+// You should have received a copy of the CC0 Public Domain Dedication along
+// with this software. If not, see
+// <https://creativecommons.org/publicdomain/zero/1.0/>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "monocypher.h"
+#include "monocypher-ed25519.h"
+#include "utils.h"
+
+static void verify16()
+{
+ u8 a[16];
+ u8 b[16];
+ crypto_verify16(a, b);
+}
+
+static void verify32()
+{
+ u8 a[32];
+ u8 b[32];
+ crypto_verify32(a, b);
+}
+
+static void verify64()
+{
+ u8 a[64];
+ u8 b[64];
+ crypto_verify64(a, b);
+}
+
+static void wipe()
+{
+ FOR (i, 0, 128) {
+ u8 secret[128];
+ crypto_wipe(secret, i);
+ }
+}
+
+static void lock_aead()
+{
+ FOR(i, 0, 128) {
+ u8 mac [ 16];
+ u8 cipher_text[128];
+ u8 key [ 32];
+ u8 nonce [ 24];
+ u8 ad [128];
+ u8 plain_text [128];
+ crypto_lock_aead(mac, cipher_text, key, nonce, ad, i, plain_text, i);
+ }
+}
+
+static void unlock_aead()
+{
+ FOR(i, 0, 128) {
+ u8 plain_text [128];
+ u8 key [ 32];
+ u8 nonce [ 24];
+ u8 mac [ 16];
+ u8 ad [128];
+ u8 cipher_text[128];
+ crypto_unlock_aead(plain_text, key, nonce, mac, ad, i, cipher_text, i);
+ }
+}
+
+static void blake2b_general()
+{
+ FOR (i, 0, 256) {
+ u8 hash [ 64];
+ u8 key [ 64];
+ u8 message[256];
+ crypto_blake2b_general(hash, 64, key, 0, message, i);
+ }
+ FOR (i, 0, 64) {
+ u8 hash [ 64];
+ u8 key [ 64];
+ u8 message[256];
+ crypto_blake2b_general(hash, 64, key, i, message, 128);
+ }
+ FOR (i, 0, 64) {
+ u8 hash [ 64];
+ u8 key [ 64];
+ u8 message[256];
+ crypto_blake2b_general(hash, i, key, 0, message, 0);
+ }
+}
+
+static void argon2i_general()
+{
+ void *work_area = alloc(1024 * 600);
+ u8 hash [ 32];
+ u8 password[ 16];
+ u8 salt [ 16];
+ u8 key [ 32];
+ u8 ad [128];
+ crypto_argon2i_general(hash, 32, work_area, 600, 3,
+ password, 16, salt, 16, key, 32, ad, 128);
+ free(work_area);
+}
+
+static void key_exchange()
+{
+ u8 shared_key [32];
+ u8 your_secret_key [32];
+ u8 their_public_key[32];
+ crypto_key_exchange(shared_key, your_secret_key, their_public_key);
+}
+
+static void sign_public_key()
+{
+ u8 public_key[32];
+ u8 secret_key[32];
+ crypto_sign_public_key(public_key, secret_key);
+}
+
+static void sign()
+{
+ u8 signature [64];
+ u8 secret_key[32];
+ u8 public_key[32];
+ u8 message [64];
+ crypto_sign(signature, secret_key, public_key, message, 64);
+}
+
+static void from_eddsa_private()
+{
+ u8 x25519[32];
+ u8 eddsa [32];
+ crypto_from_eddsa_private(x25519, eddsa);
+}
+static void from_eddsa_public()
+{
+ u8 x25519[32];
+ u8 eddsa [32];
+ crypto_from_eddsa_public(x25519, eddsa);
+}
+
+static void hidden_to_curve()
+{
+ u8 curve [32];
+ u8 hidden[32];
+ crypto_hidden_to_curve(curve, hidden);
+}
+
+static void curve_to_hidden()
+{
+ u8 hidden[32];
+ u8 curve [32];
+ u8 tweak; // The compiler notices this one is used uninitialised
+ crypto_curve_to_hidden(hidden, curve, tweak);
+}
+
+static void hidden_key_pair()
+{
+ u8 hidden [32];
+ u8 secret_key[32];
+ u8 seed [32];
+ crypto_hidden_key_pair(hidden, secret_key,seed);
+}
+
+static void h_chacha20()
+{
+ u8 out[32], key[32], in[16];
+ crypto_hchacha20(out, key, in);
+}
+
+static void chacha20()
+{
+ FOR (i, 0, 128) {
+ u8 cipher_text[128];
+ u8 plain_text [128];
+ u8 key [ 32];
+ u8 nonce [ 8];
+ crypto_chacha20(cipher_text, plain_text, i, key, nonce);
+ }
+}
+static void xchacha20()
+{
+ FOR (i, 0, 128) {
+ u8 cipher_text[128];
+ u8 plain_text [128];
+ u8 key [ 32];
+ u8 nonce [ 24];
+ crypto_xchacha20(cipher_text, plain_text, i, key, nonce);
+ }
+}
+static void ietf_chacha20()
+{
+ FOR (i, 0, 128) {
+ u8 cipher_text[128];
+ u8 plain_text [128];
+ u8 key [ 32];
+ u8 nonce [ 12];
+ crypto_ietf_chacha20(cipher_text, plain_text, i, key, nonce);
+ }
+}
+
+static void poly1305()
+{
+ FOR (i, 0, 32) {
+ u8 mac [16];
+ u8 message [32];
+ u8 key [32];
+ crypto_poly1305(mac, message, i, key);
+ }
+}
+
+static void x25519_dirty_small()
+{
+ u8 pk[32];
+ u8 sk[32];
+ crypto_x25519_dirty_small(pk, sk);
+}
+static void x25519_dirty_fast()
+{
+ u8 pk[32];
+ u8 sk[32];
+ crypto_x25519_dirty_fast(pk, sk);
+}
+
+static void x25519_inverse()
+{
+ u8 blind_salt [32];
+ u8 private_key[32];
+ u8 curve_point[32];
+ crypto_x25519_inverse(blind_salt, private_key, curve_point);
+}
+
+
+#define RUN(f, s) printf("%s: crypto_"#f"\n", s); f()
+
+int main()
+{
+ RUN(verify16 , "constant time");
+ RUN(verify32 , "constant time");
+ RUN(verify64 , "constant time");
+ RUN(wipe , "constant time");
+ RUN(lock_aead , "constant time");
+ RUN(unlock_aead , "1 conditional");
+ RUN(blake2b_general , "constant time");
+ RUN(argon2i_general , "constant time");
+ RUN(key_exchange , "constant time");
+ RUN(sign_public_key , "constant time");
+ RUN(sign , "constant time");
+ printf( "skipped : crypto_check.\n");
+ RUN(from_eddsa_private, "constant time");
+ RUN(from_eddsa_public , "constant time");
+ RUN(hidden_to_curve , "constant time");
+ RUN(curve_to_hidden , "1 conditional");
+ RUN(hidden_key_pair , "1 conditional"); // shouldn't that be 2?
+ RUN(h_chacha20 , "constant time");
+ RUN(chacha20 , "constant time");
+ RUN(xchacha20 , "constant time");
+ RUN(ietf_chacha20 , "constant time");
+ RUN(poly1305 , "constant time");
+ RUN(x25519_dirty_small, "constant time");
+ RUN(x25519_dirty_fast , "constant time");
+ RUN(x25519_inverse , "constant time");
+
+ return 0;
+}