/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* test-hkdf.c: Test egg-hkdf.c

   Copyright (C) 2011 Collabora Ltd.

   The Gnome Keyring Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The Gnome Keyring Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the Gnome Library; see the file COPYING.LIB.  If not,
   see <http://www.gnu.org/licenses/>.

   Author: Stef Walter <stef@collabora.co.uk>
*/

#include "config.h"

#undef G_DISABLE_ASSERT

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "egg/egg-hkdf.h"
#include "egg/egg-secure-memory.h"
#include "egg/egg-testing.h"

#include <gcrypt.h>

#undef G_DISABLE_ASSERT

EGG_SECURE_DEFINE_GLIB_GLOBALS ();

static void
test_hkdf_test_case_1 (void)
{
	/* RFC 5869: A.1 Test Case 1 */
	const guchar ikm[] = { 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
	                       0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
	                       0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b };
	const guchar salt[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
	                        0x08, 0x09, 0x0a, 0x0b, 0x0c };
	const guchar info[] = { 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
	                        0xf8, 0xf9 };
	const guchar okm[] = { 0x3c, 0xb2, 0x5f, 0x25, 0xfa, 0xac, 0xd5, 0x7a,
	                       0x90, 0x43, 0x4f, 0x64, 0xd0, 0x36, 0x2f, 0x2a,
	                       0x2d, 0x2d, 0x0a, 0x90, 0xcf, 0x1a, 0x5a, 0x4c,
	                       0x5d, 0xb0, 0x2d, 0x56, 0xec, 0xc4, 0xc5, 0xbf,
	                       0x34, 0x00, 0x72, 0x08, 0xd5, 0xb8, 0x87, 0x18,
	                       0x58, 0x65 };
	guchar buffer[sizeof (okm)];
	gboolean ret;

	egg_assert_cmpsize (sizeof (ikm), ==, 22);
	egg_assert_cmpsize (sizeof (salt), ==, 13);
	egg_assert_cmpsize (sizeof (info), ==, 10);
	egg_assert_cmpsize (sizeof (okm), ==, 42);

	memset (buffer, 0, sizeof (buffer));
	ret = egg_hkdf_perform ("sha256",
	                        ikm, sizeof (ikm),
	                        salt, sizeof (salt),
	                        info, sizeof (info),
	                        buffer, sizeof (buffer));
	g_assert_true (ret);
	egg_assert_cmpmem (buffer, sizeof (buffer), ==, okm, sizeof (okm));
}

static void
test_hkdf_test_case_2 (void)
{
	/* RFC 5869: A.2 Test Case 2 */
	const guchar ikm[] = { 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,
	                       0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
	                       0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
	                       0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
	                       0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
	                       0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
	                       0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f };
	const guchar salt[] = { 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
	                        0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
	                        0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
	                        0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
	                        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,
	                        0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
	                        0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf };
	const guchar info[] = { 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
	                        0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
	                        0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
	                        0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
	                        0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
	                        0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
	                        0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
	                        0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
	                        0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
	                        0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
	const guchar okm[] = { 0xb1, 0x1e, 0x39, 0x8d, 0xc8, 0x03, 0x27, 0xa1,
	                       0xc8, 0xe7, 0xf7, 0x8c, 0x59, 0x6a, 0x49, 0x34,
	                       0x4f, 0x01, 0x2e, 0xda, 0x2d, 0x4e, 0xfa, 0xd8,
	                       0xa0, 0x50, 0xcc, 0x4c, 0x19, 0xaf, 0xa9, 0x7c,
	                       0x59, 0x04, 0x5a, 0x99, 0xca, 0xc7, 0x82, 0x72,
	                       0x71, 0xcb, 0x41, 0xc6, 0x5e, 0x59, 0x0e, 0x09,
	                       0xda, 0x32, 0x75, 0x60, 0x0c, 0x2f, 0x09, 0xb8,
	                       0x36, 0x77, 0x93, 0xa9, 0xac, 0xa3, 0xdb, 0x71,
	                       0xcc, 0x30, 0xc5, 0x81, 0x79, 0xec, 0x3e, 0x87,
	                       0xc1, 0x4c, 0x01, 0xd5, 0xc1, 0xf3, 0x43, 0x4f,
	                       0x1d, 0x87 };
	guchar buffer[sizeof (okm)];
	gboolean ret;

	egg_assert_cmpsize (sizeof (ikm), ==, 80);
	egg_assert_cmpsize (sizeof (salt), ==, 80);
	egg_assert_cmpsize (sizeof (info), ==, 80);
	egg_assert_cmpsize (sizeof (okm), ==, 82);

	memset (buffer, 0, sizeof (buffer));
	ret = egg_hkdf_perform ("sha256",
	                        ikm, sizeof (ikm),
	                        salt, sizeof (salt),
	                        info, sizeof (info),
	                        buffer, sizeof (buffer));
	g_assert_true (ret);
	egg_assert_cmpmem (buffer, sizeof (buffer), ==, okm, sizeof (okm));
}

static void
test_hkdf_test_case_3 (void)
{
	/* RFC 5869: A.3 Test Case 3 */
	const guchar ikm[] = { 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
	                       0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
	                       0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,};
	const guchar salt[] = { };
	const guchar info[] = { };
	const guchar okm[] = { 0x8d, 0xa4, 0xe7, 0x75, 0xa5, 0x63, 0xc1, 0x8f,
	                       0x71, 0x5f, 0x80, 0x2a, 0x06, 0x3c, 0x5a, 0x31,
	                       0xb8, 0xa1, 0x1f, 0x5c, 0x5e, 0xe1, 0x87, 0x9e,
	                       0xc3, 0x45, 0x4e, 0x5f, 0x3c, 0x73, 0x8d, 0x2d,
	                       0x9d, 0x20, 0x13, 0x95, 0xfa, 0xa4, 0xb6, 0x1a,
	                       0x96, 0xc8 };
	guchar buffer[sizeof (okm)];
	gboolean ret;

	egg_assert_cmpsize (sizeof (ikm), ==, 22);
	egg_assert_cmpsize (sizeof (salt), ==, 0);
	egg_assert_cmpsize (sizeof (info), ==, 0);
	egg_assert_cmpsize (sizeof (okm), ==, 42);

	memset (buffer, 0, sizeof (buffer));
	ret = egg_hkdf_perform ("sha256",
	                        ikm, sizeof (ikm),
	                        salt, sizeof (salt),
	                        info, sizeof (info),
	                        buffer, sizeof (buffer));
	g_assert_true (ret);
	egg_assert_cmpmem (buffer, sizeof (buffer), ==, okm, sizeof (okm));
}

static void
test_hkdf_test_case_4 (void)
{
	/* RFC 5869: A.4 Test Case 4 */
	const guchar ikm[] = { 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
	                       0x0b, 0x0b, 0x0b };
	const guchar salt[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
	                        0x08, 0x09, 0x0a, 0x0b, 0x0c };
	const guchar info[] = { 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
	                        0xf8, 0xf9 };
	const guchar okm[] = { 0x08, 0x5a, 0x01, 0xea, 0x1b, 0x10, 0xf3, 0x69,
	                       0x33, 0x06, 0x8b, 0x56, 0xef, 0xa5, 0xad, 0x81,
	                       0xa4, 0xf1, 0x4b, 0x82, 0x2f, 0x5b, 0x09, 0x15,
	                       0x68, 0xa9, 0xcd, 0xd4, 0xf1, 0x55, 0xfd, 0xa2,
	                       0xc2, 0x2e, 0x42, 0x24, 0x78, 0xd3, 0x05, 0xf3,
	                       0xf8, 0x96 };
	guchar buffer[sizeof (okm)];
	gboolean ret;

	egg_assert_cmpsize (sizeof (ikm), ==, 11);
	egg_assert_cmpsize (sizeof (salt), ==, 13);
	egg_assert_cmpsize (sizeof (info), ==, 10);
	egg_assert_cmpsize (sizeof (okm), ==, 42);

	memset (buffer, 0, sizeof (buffer));
	ret = egg_hkdf_perform ("sha1",
	                        ikm, sizeof (ikm),
	                        salt, sizeof (salt),
	                        info, sizeof (info),
	                        buffer, sizeof (buffer));
	g_assert_true (ret);
	egg_assert_cmpmem (buffer, sizeof (buffer), ==, okm, sizeof (okm));
}

static void
test_hkdf_test_case_5 (void)
{
	/* RFC 5869: A.5 Test Case 5 */
	const guchar ikm[] = { 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,
	                       0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
	                       0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
	                       0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
	                       0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
	                       0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
	                       0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f };
	const guchar salt[] = { 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
	                        0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
	                        0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
	                        0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
	                        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,
	                        0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
	                        0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf };
	const guchar info[] = { 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
	                        0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
	                        0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
	                        0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
	                        0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
	                        0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
	                        0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
	                        0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
	                        0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
	                        0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
	const guchar okm[] = { 0x0b, 0xd7, 0x70, 0xa7, 0x4d, 0x11, 0x60, 0xf7,
	                       0xc9, 0xf1, 0x2c, 0xd5, 0x91, 0x2a, 0x06, 0xeb,
	                       0xff, 0x6a, 0xdc, 0xae, 0x89, 0x9d, 0x92, 0x19,
	                       0x1f, 0xe4, 0x30, 0x56, 0x73, 0xba, 0x2f, 0xfe,
	                       0x8f, 0xa3, 0xf1, 0xa4, 0xe5, 0xad, 0x79, 0xf3,
	                       0xf3, 0x34, 0xb3, 0xb2, 0x02, 0xb2, 0x17, 0x3c,
	                       0x48, 0x6e, 0xa3, 0x7c, 0xe3, 0xd3, 0x97, 0xed,
	                       0x03, 0x4c, 0x7f, 0x9d, 0xfe, 0xb1, 0x5c, 0x5e,
	                       0x92, 0x73, 0x36, 0xd0, 0x44, 0x1f, 0x4c, 0x43,
	                       0x00, 0xe2, 0xcf, 0xf0, 0xd0, 0x90, 0x0b, 0x52,
	                       0xd3, 0xb4 };
	guchar buffer[sizeof (okm)];
	gboolean ret;

	egg_assert_cmpsize (sizeof (ikm), ==, 80);
	egg_assert_cmpsize (sizeof (salt), ==, 80);
	egg_assert_cmpsize (sizeof (info), ==, 80);
	egg_assert_cmpsize (sizeof (okm), ==, 82);

	memset (buffer, 0, sizeof (buffer));
	ret = egg_hkdf_perform ("sha1",
	                        ikm, sizeof (ikm),
	                        salt, sizeof (salt),
	                        info, sizeof (info),
	                        buffer, sizeof (buffer));
	g_assert_true (ret);
	egg_assert_cmpmem (buffer, sizeof (buffer), ==, okm, sizeof (okm));
}

static void
test_hkdf_test_case_6 (void)
{
	/* RFC 5869: A.6 Test Case 6 */
	const guchar ikm[] = { 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
	                       0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
	                       0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b };
	const guchar salt[] = { };
	const guchar info[] = { };
	const guchar okm[] = { 0x0a, 0xc1, 0xaf, 0x70, 0x02, 0xb3, 0xd7, 0x61,
	                       0xd1, 0xe5, 0x52, 0x98, 0xda, 0x9d, 0x05, 0x06,
	                       0xb9, 0xae, 0x52, 0x05, 0x72, 0x20, 0xa3, 0x06,
	                       0xe0, 0x7b, 0x6b, 0x87, 0xe8, 0xdf, 0x21, 0xd0,
	                       0xea, 0x00, 0x03, 0x3d, 0xe0, 0x39, 0x84, 0xd3,
	                       0x49, 0x18 };
	guchar buffer[sizeof (okm)];
	gboolean ret;

	egg_assert_cmpsize (sizeof (ikm), ==, 22);
	egg_assert_cmpsize (sizeof (salt), ==, 0);
	egg_assert_cmpsize (sizeof (info), ==, 0);
	egg_assert_cmpsize (sizeof (okm), ==, 42);

	memset (buffer, 0, sizeof (buffer));
	ret = egg_hkdf_perform ("sha1",
	                        ikm, sizeof (ikm),
	                        salt, sizeof (salt),
	                        info, sizeof (info),
	                        buffer, sizeof (buffer));
	g_assert_true (ret);
	egg_assert_cmpmem (buffer, sizeof (buffer), ==, okm, sizeof (okm));
}

static void
test_hkdf_test_case_7 (void)
{
	/* RFC 5869: A.7 Test Case 7 */
	const guchar ikm[] = { 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
	                       0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
	                       0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c };
	const guchar *salt = NULL;
	const guchar info[] = { };
	const guchar okm[] = { 0x2c, 0x91, 0x11, 0x72, 0x04, 0xd7, 0x45, 0xf3,
	                       0x50, 0x0d, 0x63, 0x6a, 0x62, 0xf6, 0x4f, 0x0a,
	                       0xb3, 0xba, 0xe5, 0x48, 0xaa, 0x53, 0xd4, 0x23,
	                       0xb0, 0xd1, 0xf2, 0x7e, 0xbb, 0xa6, 0xf5, 0xe5,
	                       0x67, 0x3a, 0x08, 0x1d, 0x70, 0xcc, 0xe7, 0xac,
	                       0xfc, 0x48 };
	guchar buffer[sizeof (okm)];
	gboolean ret;

	egg_assert_cmpsize (sizeof (ikm), ==, 22);
	egg_assert_cmpsize (sizeof (info), ==, 0);
	egg_assert_cmpsize (sizeof (okm), ==, 42);

	memset (buffer, 0, sizeof (buffer));
	ret = egg_hkdf_perform ("sha1",
	                        ikm, sizeof (ikm),
	                        salt, sizeof (salt),
	                        info, sizeof (info),
	                        buffer, sizeof (buffer));
	g_assert_true (ret);
	egg_assert_cmpmem (buffer, sizeof (buffer), ==, okm, sizeof (okm));
}

int
main (int argc, char **argv)
{
	g_test_init (&argc, &argv, NULL);

	g_test_add_func ("/hkdf/test-case-1", test_hkdf_test_case_1);
	g_test_add_func ("/hkdf/test-case-2", test_hkdf_test_case_2);
	g_test_add_func ("/hkdf/test-case-3", test_hkdf_test_case_3);
	g_test_add_func ("/hkdf/test-case-4", test_hkdf_test_case_4);
	g_test_add_func ("/hkdf/test-case-5", test_hkdf_test_case_5);
	g_test_add_func ("/hkdf/test-case-6", test_hkdf_test_case_6);
	g_test_add_func ("/hkdf/test-case-7", test_hkdf_test_case_7);

	return g_test_run ();
}
