/* $NetBSD: chacha_selftest.c,v 1.1 2020/07/25 22:46:34 riastradh Exp $ */
/*-
* Copyright (c) 2020 The NetBSD Foundation, Inc.
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include "chacha_impl.h"
#ifdef _KERNEL
#include
#else
#include
#include
static void
hexdump(int (*prf)(const char *, ...) __printflike(1,2), const char *prefix,
const void *buf, size_t len)
{
const uint8_t *p = buf;
size_t i;
(*prf)("%s (%zu bytes @ %p)\n", prefix, len, buf);
for (i = 0; i < len; i++) {
if (i % 16 == 8)
(*prf)(" ");
else
(*prf)(" ");
(*prf)("%02hhx", p[i]);
if ((i + 1) % 16 == 0)
(*prf)("\n");
}
if (i % 16)
(*prf)("\n");
}
#endif
/* https://tools.ietf.org/html/draft-strombergson-chacha-test-vectors-00 */
static int
chacha_core_selftest(const struct chacha_impl *ci)
{
/* TC1, 32-byte key, rounds=12, keystream block 1 */
static const uint8_t zero[32];
static const uint8_t expected0[64] = {
0x9b,0xf4,0x9a,0x6a, 0x07,0x55,0xf9,0x53,
0x81,0x1f,0xce,0x12, 0x5f,0x26,0x83,0xd5,
0x04,0x29,0xc3,0xbb, 0x49,0xe0,0x74,0x14,
0x7e,0x00,0x89,0xa5, 0x2e,0xae,0x15,0x5f,
0x05,0x64,0xf8,0x79, 0xd2,0x7a,0xe3,0xc0,
0x2c,0xe8,0x28,0x34, 0xac,0xfa,0x8c,0x79,
0x3a,0x62,0x9f,0x2c, 0xa0,0xde,0x69,0x19,
0x61,0x0b,0xe8,0x2f, 0x41,0x13,0x26,0xbe,
};
/* TC7, 32-byte key, rounds=12, keystream block 2 */
static const uint8_t k1[32] = {
0x00,0x11,0x22,0x33, 0x44,0x55,0x66,0x77,
0x88,0x99,0xaa,0xbb, 0xcc,0xdd,0xee,0xff,
0xff,0xee,0xdd,0xcc, 0xbb,0xaa,0x99,0x88,
0x77,0x66,0x55,0x44, 0x33,0x22,0x11,0x00,
};
static const uint8_t in1[16] = {
0x01,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,
0x0f,0x1e,0x2d,0x3c, 0x4b,0x59,0x68,0x77,
};
static const uint8_t expected1[64] = {
0xcd,0x9a,0x2a,0xa9, 0xea,0x93,0xc2,0x67,
0x5e,0x82,0x88,0x14, 0x08,0xde,0x85,0x2c,
0x62,0xfa,0x74,0x6a, 0x30,0xe5,0x2b,0x45,
0xa2,0x69,0x62,0xcf, 0x43,0x51,0xe3,0x04,
0xd3,0x13,0x20,0xbb, 0xd6,0xaa,0x6c,0xc8,
0xf3,0x26,0x37,0xf9, 0x59,0x34,0xe4,0xc1,
0x45,0xef,0xd5,0x62, 0x31,0xef,0x31,0x61,
0x03,0x28,0x36,0xf4, 0x96,0x71,0x83,0x3e,
};
uint8_t out[64];
int result = 0;
(*ci->ci_chacha_core)(out, zero, zero, chacha_const32, 12);
if (memcmp(out, expected0, 64)) {
hexdump(printf, "chacha core 1", out, sizeof out);
result = -1;
}
(*ci->ci_chacha_core)(out, in1, k1, chacha_const32, 12);
if (memcmp(out, expected1, 64)) {
hexdump(printf, "chacha core 2", out, sizeof out);
result = -1;
}
return result;
}
static int
hchacha_selftest(const struct chacha_impl *ci)
{
/* https://tools.ietf.org/html/draft-irtf-cfrg-xchacha-03, ยง2.2.1 */
static const uint8_t k[32] = {
0x00,0x01,0x02,0x03, 0x04,0x05,0x06,0x07,
0x08,0x09,0x0a,0x0b, 0x0c,0x0d,0x0e,0x0f,
0x10,0x11,0x12,0x13, 0x14,0x15,0x16,0x17,
0x18,0x19,0x1a,0x1b, 0x1c,0x1d,0x1e,0x1f,
};
static const uint8_t in[16] = {
0x00,0x00,0x00,0x09, 0x00,0x00,0x00,0x4a,
0x00,0x00,0x00,0x00, 0x31,0x41,0x59,0x27,
};
static const uint8_t expected[32] = {
0x82,0x41,0x3b,0x42, 0x27,0xb2,0x7b,0xfe,
0xd3,0x0e,0x42,0x50, 0x8a,0x87,0x7d,0x73,
0xa0,0xf9,0xe4,0xd5, 0x8a,0x74,0xa8,0x53,
0xc1,0x2e,0xc4,0x13, 0x26,0xd3,0xec,0xdc,
};
uint8_t out[32];
int result = 0;
(*ci->ci_hchacha)(out, in, k, chacha_const32, 20);
if (memcmp(out, expected, 32)) {
hexdump(printf, "hchacha", out, sizeof out);
result = -1;
}
return result;
}
static int
chacha_stream_selftest(const struct chacha_impl *ci)
{
/* XXX */
return 0;
}
static int
xchacha_stream_selftest(const struct chacha_impl *ci)
{
/* https://tools.ietf.org/html/draft-irtf-cfrg-xchacha-03, A.2.1 */
static const uint8_t k[32] = {
0x80,0x81,0x82,0x83, 0x84,0x85,0x86,0x87,
0x88,0x89,0x8a,0x8b, 0x8c,0x8d,0x8e,0x8f,
0x90,0x91,0x92,0x93, 0x94,0x95,0x96,0x97,
0x98,0x99,0x9a,0x9b, 0x9c,0x9d,0x9e,0x9f,
};
static const uint8_t nonce[24] = {
0x40,0x41,0x42,0x43, 0x44,0x45,0x46,0x47,
0x48,0x49,0x4a,0x4b, 0x4c,0x4d,0x4e,0x4f,
0x50,0x51,0x52,0x53, 0x54,0x55,0x56,0x58,
};
static const uint8_t p[608] = {
0x54,0x68,0x65,0x20, 0x64,0x68,0x6f,0x6c,
0x65,0x20,0x28,0x70, 0x72,0x6f,0x6e,0x6f,
0x75,0x6e,0x63,0x65, 0x64,0x20,0x22,0x64,
0x6f,0x6c,0x65,0x22, 0x29,0x20,0x69,0x73,
0x20,0x61,0x6c,0x73, 0x6f,0x20,0x6b,0x6e,
0x6f,0x77,0x6e,0x20, 0x61,0x73,0x20,0x74,
0x68,0x65,0x20,0x41, 0x73,0x69,0x61,0x74,
0x69,0x63,0x20,0x77, 0x69,0x6c,0x64,0x20,
0x64,0x6f,0x67,0x2c, 0x20,0x72,0x65,0x64,
0x20,0x64,0x6f,0x67, 0x2c,0x20,0x61,0x6e,
0x64,0x20,0x77,0x68, 0x69,0x73,0x74,0x6c,
0x69,0x6e,0x67,0x20, 0x64,0x6f,0x67,0x2e,
0x20,0x49,0x74,0x20, 0x69,0x73,0x20,0x61,
0x62,0x6f,0x75,0x74, 0x20,0x74,0x68,0x65,
0x20,0x73,0x69,0x7a, 0x65,0x20,0x6f,0x66,
0x20,0x61,0x20,0x47, 0x65,0x72,0x6d,0x61,
0x6e,0x20,0x73,0x68, 0x65,0x70,0x68,0x65,
0x72,0x64,0x20,0x62, 0x75,0x74,0x20,0x6c,
0x6f,0x6f,0x6b,0x73, 0x20,0x6d,0x6f,0x72,
0x65,0x20,0x6c,0x69, 0x6b,0x65,0x20,0x61,
0x20,0x6c,0x6f,0x6e, 0x67,0x2d,0x6c,0x65,
0x67,0x67,0x65,0x64, 0x20,0x66,0x6f,0x78,
0x2e,0x20,0x54,0x68, 0x69,0x73,0x20,0x68,
0x69,0x67,0x68,0x6c, 0x79,0x20,0x65,0x6c,
0x75,0x73,0x69,0x76, 0x65,0x20,0x61,0x6e,
0x64,0x20,0x73,0x6b, 0x69,0x6c,0x6c,0x65,
0x64,0x20,0x6a,0x75, 0x6d,0x70,0x65,0x72,
0x20,0x69,0x73,0x20, 0x63,0x6c,0x61,0x73,
0x73,0x69,0x66,0x69, 0x65,0x64,0x20,0x77,
0x69,0x74,0x68,0x20, 0x77,0x6f,0x6c,0x76,
0x65,0x73,0x2c,0x20, 0x63,0x6f,0x79,0x6f,
0x74,0x65,0x73,0x2c, 0x20,0x6a,0x61,0x63,
0x6b,0x61,0x6c,0x73, 0x2c,0x20,0x61,0x6e,
0x64,0x20,0x66,0x6f, 0x78,0x65,0x73,0x20,
0x69,0x6e,0x20,0x74, 0x68,0x65,0x20,0x74,
0x61,0x78,0x6f,0x6e, 0x6f,0x6d,0x69,0x63,
0x20,0x66,0x61,0x6d, 0x69,0x6c,0x79,0x20,
0x43,0x61,0x6e,0x69, 0x64,0x61,0x65,0x2e,
0x54,0x68,0x65,0x20, 0x64,0x68,0x6f,0x6c,
0x65,0x20,0x28,0x70, 0x72,0x6f,0x6e,0x6f,
0x75,0x6e,0x63,0x65, 0x64,0x20,0x22,0x64,
0x6f,0x6c,0x65,0x22, 0x29,0x20,0x69,0x73,
0x20,0x61,0x6c,0x73, 0x6f,0x20,0x6b,0x6e,
0x6f,0x77,0x6e,0x20, 0x61,0x73,0x20,0x74,
0x68,0x65,0x20,0x41, 0x73,0x69,0x61,0x74,
0x69,0x63,0x20,0x77, 0x69,0x6c,0x64,0x20,
0x64,0x6f,0x67,0x2c, 0x20,0x72,0x65,0x64,
0x20,0x64,0x6f,0x67, 0x2c,0x20,0x61,0x6e,
0x64,0x20,0x77,0x68, 0x69,0x73,0x74,0x6c,
0x69,0x6e,0x67,0x20, 0x64,0x6f,0x67,0x2e,
0x20,0x49,0x74,0x20, 0x69,0x73,0x20,0x61,
0x62,0x6f,0x75,0x74, 0x20,0x74,0x68,0x65,
0x20,0x73,0x69,0x7a, 0x65,0x20,0x6f,0x66,
0x20,0x61,0x20,0x47, 0x65,0x72,0x6d,0x61,
0x6e,0x20,0x73,0x68, 0x65,0x70,0x68,0x65,
0x72,0x64,0x20,0x62, 0x75,0x74,0x20,0x6c,
0x6f,0x6f,0x6b,0x73, 0x20,0x6d,0x6f,0x72,
0x65,0x20,0x6c,0x69, 0x6b,0x65,0x20,0x61,
0x20,0x6c,0x6f,0x6e, 0x67,0x2d,0x6c,0x65,
0x67,0x67,0x65,0x64, 0x20,0x66,0x6f,0x78,
0x2e,0x20,0x54,0x68, 0x69,0x73,0x20,0x68,
0x69,0x67,0x68,0x6c, 0x79,0x20,0x65,0x6c,
0x75,0x73,0x69,0x76, 0x65,0x20,0x61,0x6e,
0x64,0x20,0x73,0x6b, 0x69,0x6c,0x6c,0x65,
0x64,0x20,0x6a,0x75, 0x6d,0x70,0x65,0x72,
0x20,0x69,0x73,0x20, 0x63,0x6c,0x61,0x73,
0x73,0x69,0x66,0x69, 0x65,0x64,0x20,0x77,
0x69,0x74,0x68,0x20, 0x77,0x6f,0x6c,0x76,
0x65,0x73,0x2c,0x20, 0x63,0x6f,0x79,0x6f,
0x74,0x65,0x73,0x2c, 0x20,0x6a,0x61,0x63,
0x6b,0x61,0x6c,0x73, 0x2c,0x20,0x61,0x6e,
0x64,0x20,0x66,0x6f, 0x78,0x65,0x73,0x20,
0x69,0x6e,0x20,0x74, 0x68,0x65,0x20,0x74,
0x61,0x78,0x6f,0x6e, 0x6f,0x6d,0x69,0x63,
0x20,0x66,0x61,0x6d, 0x69,0x6c,0x79,0x20,
0x43,0x61,0x6e,0x69, 0x64,0x61,0x65,0x2e,
};
static const uint8_t expected[608] = {
0x45,0x59,0xab,0xba, 0x4e,0x48,0xc1,0x61,
0x02,0xe8,0xbb,0x2c, 0x05,0xe6,0x94,0x7f,
0x50,0xa7,0x86,0xde, 0x16,0x2f,0x9b,0x0b,
0x7e,0x59,0x2a,0x9b, 0x53,0xd0,0xd4,0xe9,
0x8d,0x8d,0x64,0x10, 0xd5,0x40,0xa1,0xa6,
0x37,0x5b,0x26,0xd8, 0x0d,0xac,0xe4,0xfa,
0xb5,0x23,0x84,0xc7, 0x31,0xac,0xbf,0x16,
0xa5,0x92,0x3c,0x0c, 0x48,0xd3,0x57,0x5d,
0x4d,0x0d,0x2c,0x67, 0x3b,0x66,0x6f,0xaa,
0x73,0x10,0x61,0x27, 0x77,0x01,0x09,0x3a,
0x6b,0xf7,0xa1,0x58, 0xa8,0x86,0x42,0x92,
0xa4,0x1c,0x48,0xe3, 0xa9,0xb4,0xc0,0xda,
0xec,0xe0,0xf8,0xd9, 0x8d,0x0d,0x7e,0x05,
0xb3,0x7a,0x30,0x7b, 0xbb,0x66,0x33,0x31,
0x64,0xec,0x9e,0x1b, 0x24,0xea,0x0d,0x6c,
0x3f,0xfd,0xdc,0xec, 0x4f,0x68,0xe7,0x44,
0x30,0x56,0x19,0x3a, 0x03,0xc8,0x10,0xe1,
0x13,0x44,0xca,0x06, 0xd8,0xed,0x8a,0x2b,
0xfb,0x1e,0x8d,0x48, 0xcf,0xa6,0xbc,0x0e,
0xb4,0xe2,0x46,0x4b, 0x74,0x81,0x42,0x40,
0x7c,0x9f,0x43,0x1a, 0xee,0x76,0x99,0x60,
0xe1,0x5b,0xa8,0xb9, 0x68,0x90,0x46,0x6e,
0xf2,0x45,0x75,0x99, 0x85,0x23,0x85,0xc6,
0x61,0xf7,0x52,0xce, 0x20,0xf9,0xda,0x0c,
0x09,0xab,0x6b,0x19, 0xdf,0x74,0xe7,0x6a,
0x95,0x96,0x74,0x46, 0xf8,0xd0,0xfd,0x41,
0x5e,0x7b,0xee,0x2a, 0x12,0xa1,0x14,0xc2,
0x0e,0xb5,0x29,0x2a, 0xe7,0xa3,0x49,0xae,
0x57,0x78,0x20,0xd5, 0x52,0x0a,0x1f,0x3f,
0xb6,0x2a,0x17,0xce, 0x6a,0x7e,0x68,0xfa,
0x7c,0x79,0x11,0x1d, 0x88,0x60,0x92,0x0b,
0xc0,0x48,0xef,0x43, 0xfe,0x84,0x48,0x6c,
0xcb,0x87,0xc2,0x5f, 0x0a,0xe0,0x45,0xf0,
0xcc,0xe1,0xe7,0x98, 0x9a,0x9a,0xa2,0x20,
0xa2,0x8b,0xdd,0x48, 0x27,0xe7,0x51,0xa2,
0x4a,0x6d,0x5c,0x62, 0xd7,0x90,0xa6,0x63,
0x93,0xb9,0x31,0x11, 0xc1,0xa5,0x5d,0xd7,
0x42,0x1a,0x10,0x18, 0x49,0x74,0xc7,0xc5,
0x08,0x38,0x2d,0x64, 0x35,0x8d,0x21,0x77,
0x2e,0xb9,0x73,0xa8, 0x8f,0xb6,0x2b,0xf8,
0xce,0xfa,0xb4,0xca, 0x6f,0x0c,0x26,0xbb,
0x7f,0xd6,0x6d,0xb2, 0xa0,0xbe,0xb0,0x5a,
0x1a,0x6e,0x39,0xcb, 0xd5,0xda,0xf2,0xfc,
0x0b,0x74,0x31,0x3d, 0x2e,0xcd,0x5f,0x94,
0xc2,0x9f,0x30,0xdb, 0x11,0x5e,0x41,0x53,
0x8c,0x6d,0x30,0xba, 0x97,0xa0,0xc5,0x07,
0x70,0x78,0x02,0x5a, 0xc1,0x69,0x70,0x8f,
0x22,0x85,0xcb,0x98, 0xbc,0x6a,0x51,0xfb,
0xc6,0xa7,0xc3,0x3d, 0x76,0xe4,0x93,0x9a,
0x21,0xe2,0xc6,0x12, 0xe1,0x3a,0xcc,0xfb,
0x6f,0xa6,0x57,0xc0, 0x09,0x8c,0x6f,0xf3,
0x8d,0x83,0x21,0x1b, 0x71,0xa9,0xc1,0x93,
0x88,0x35,0xfc,0x18, 0x1f,0x94,0xa2,0x57,
0x3a,0x4e,0xd0,0xc0, 0xbc,0x92,0xa7,0x9c,
0x52,0x8a,0x82,0x9d, 0x44,0x75,0x7b,0xa0,
0xcf,0x3d,0x2d,0xbf, 0xf9,0x6f,0x71,0x56,
0x38,0xb0,0x63,0x5e, 0x55,0xcd,0x28,0x12,
0xc5,0xea,0x52,0xf4, 0xdc,0xf7,0xdc,0x3d,
0xd8,0x96,0x09,0xe8, 0x2a,0xcc,0x00,0x16,
0x88,0x77,0x82,0x10, 0xed,0x7d,0xd8,0x8b,
0xf5,0xd3,0xe1,0xfc, 0x49,0x66,0x36,0x8d,
0x55,0xd2,0x33,0xb8, 0x6d,0xff,0xe3,0xd3,
0x55,0x80,0x0e,0xd8, 0x95,0x32,0x32,0x55,
0x83,0xe7,0x58,0x6f, 0xec,0xc3,0x8c,0xf8,
0x52,0x16,0xdc,0x0d, 0x29,0x02,0xe5,0x27,
0x35,0xc2,0xbb,0xe2, 0xe2,0x3b,0xf5,0x19,
0xcd,0x44,0x83,0xe8, 0x21,0x55,0xd0,0x10,
0x15,0x68,0x8e,0x46, 0xa3,0x2f,0xa5,0x7c,
0xa8,0x2c,0xc6,0x8f, 0x14,0xcd,0xb3,0x79,
0x92,0x32,0x71,0xac, 0xd9,0xaf,0x9c,0x4d,
0x00,0x88,0xd1,0x42, 0xd5,0x23,0xfa,0xe6,
0x7f,0x38,0xa2,0x56, 0x99,0xbe,0x6f,0xcf,
0xe0,0xaa,0x44,0x11, 0x8a,0xc8,0x3a,0x99,
0x48,0x6d,0x33,0x0e, 0x94,0xf2,0xb9,0x87,
0xed,0x4f,0x6a,0x9c, 0x33,0x93,0x6d,0xe4,
0x92,0x76,0xab,0xfa, 0xce,0x5b,0x17,0x14,
};
uint8_t c[608];
unsigned i;
int result = 0;
/*
* 608 = 96 (mod 256)
* 607 = 95 (mod 256), = 7 (mod 8)
* 543 = 31 (mod 256), = 7 (mod 8)
* 511 = 255 (mod 256), = 7 (mod 8)
*
* This exercises several branches when there are special cases
* for integral numbers of 4-byte words, integral numbers of
* 64-byte blocks, and integral numbers of 256-byte chunks.
*/
(*ci->ci_xchacha_stream)(c, 608, 0, nonce, k, 20);
for (i = 0; i < 608; i++)
c[i] ^= p[i];
if (memcmp(c, expected, 608)) {
for (i = 0; i < 608; i++)
c[i] ^= p[i];
hexdump(printf, "xchacha_stream", c, 608);
for (i = 0; i < 608; i++)
c[i] = expected[i] ^ p[i];
hexdump(printf, "expected", c, 608);
result = -1;
}
(*ci->ci_xchacha_stream)(c, 607, 0, nonce, k, 20);
for (i = 0; i < 607; i++)
c[i] ^= p[i];
if (memcmp(c, expected, 607)) {
for (i = 0; i < 607; i++)
c[i] ^= p[i];
hexdump(printf, "xchacha_stream", c, 607);
for (i = 0; i < 607; i++)
c[i] = expected[i] ^ p[i];
hexdump(printf, "expected", c, 607);
result = -1;
}
(*ci->ci_xchacha_stream)(c, 543, 0, nonce, k, 20);
for (i = 0; i < 543; i++)
c[i] ^= p[i];
if (memcmp(c, expected, 543)) {
for (i = 0; i < 543; i++)
c[i] ^= p[i];
hexdump(printf, "xchacha_stream", c, 543);
for (i = 0; i < 543; i++)
c[i] = expected[i] ^ p[i];
hexdump(printf, "expected", c, 543);
result = -1;
}
(*ci->ci_xchacha_stream)(c, 511, 0, nonce, k, 20);
for (i = 0; i < 511; i++)
c[i] ^= p[i];
if (memcmp(c, expected, 511)) {
for (i = 0; i < 511; i++)
c[i] ^= p[i];
hexdump(printf, "xchacha_stream", c, 511);
for (i = 0; i < 511; i++)
c[i] = expected[i] ^ p[i];
hexdump(printf, "expected", c, 511);
result = -1;
}
(*ci->ci_xchacha_stream)(c, 63, 0, nonce, k, 20);
for (i = 0; i < 63; i++)
c[i] ^= p[i];
if (memcmp(c, expected, 63)) {
for (i = 0; i < 63; i++)
c[i] ^= p[i];
hexdump(printf, "xchacha_stream", c, 63);
for (i = 0; i < 63; i++)
c[i] = expected[i] ^ p[i];
hexdump(printf, "expected", c, 63);
result = -1;
}
(*ci->ci_xchacha_stream_xor)(c, p, 608, 0, nonce, k, 20);
if (memcmp(c, expected, 608)) {
hexdump(printf, "xchacha_stream_xor", c, 608);
hexdump(printf, "expected", expected, 608);
result = -1;
}
memset(c, 0, sizeof c);
(*ci->ci_xchacha_stream_xor)(c, p, 607, 0, nonce, k, 20);
if (memcmp(c, expected, 607)) {
hexdump(printf, "xchacha_stream_xor", c, 607);
hexdump(printf, "expected", expected, 607);
result = -1;
}
memset(c, 0, sizeof c);
(*ci->ci_xchacha_stream_xor)(c, p, 543, 0, nonce, k, 20);
if (memcmp(c, expected, 543)) {
hexdump(printf, "xchacha_stream_xor", c, 543);
hexdump(printf, "expected", expected, 543);
result = -1;
}
memset(c, 0, sizeof c);
(*ci->ci_xchacha_stream_xor)(c, p, 511, 0, nonce, k, 20);
if (memcmp(c, expected, 511)) {
hexdump(printf, "xchacha_stream_xor", c, 511);
hexdump(printf, "expected", expected, 511);
result = -1;
}
memset(c, 0, sizeof c);
(*ci->ci_xchacha_stream_xor)(c, p, 63, 0, nonce, k, 20);
if (memcmp(c, expected, 63)) {
hexdump(printf, "xchacha_stream_xor", c, 63);
hexdump(printf, "expected", expected, 63);
result = -1;
}
return result;
}
int
chacha_selftest(const struct chacha_impl *ci)
{
int result = 0;
result |= chacha_core_selftest(ci);
result |= chacha_stream_selftest(ci);
result |= hchacha_selftest(ci);
result |= xchacha_stream_selftest(ci);
return result;
}