/*
 * Copyright (C) 2016 Andreas Steffen
 * HSR Hochschule fuer Technik Rapperswil
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
 *
 * This program 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 General Public License
 * for more details.
 */

#include "test_suite.h"

#include <time.h>

typedef struct sig_test_t sig_test_t;

struct sig_test_t {
	chunk_t key;
	chunk_t pubkey;
	chunk_t msg;
	chunk_t sig;
};

/**
 * Ed25519 Test Vectors from draft-irtf-cfrg-eddsa
 */
static sig_test_t sig_tests[] = {
	/* Test 1 */
	{ chunk_from_chars(
		0x30, 0x2e, 0x02, 0x01, 0x00, 0x30, 0x05, 0x06, 0x03, 0x2b,
		0x65, 0x70, 0x04, 0x22, 0x04, 0x20, 0x9d, 0x61, 0xb1, 0x9d,
		0xef, 0xfd, 0x5a, 0x60, 0xba, 0x84, 0x4a, 0xf4, 0x92, 0xec,
		0x2c, 0xc4, 0x44, 0x49, 0xc5, 0x69, 0x7b, 0x32, 0x69, 0x19,
		0x70, 0x3b, 0xac, 0x03, 0x1c, 0xae, 0x7f, 0x60),
	  chunk_from_chars(
		0x30, 0x2a, 0x30, 0x05, 0x06, 0x03, 0x2b, 0x65, 0x70, 0x03,
		0x21, 0x00, 0xd7, 0x5a, 0x98, 0x01, 0x82, 0xb1, 0x0a, 0xb7,
		0xd5, 0x4b, 0xfe, 0xd3, 0xc9, 0x64, 0x07, 0x3a, 0x0e, 0xe1,
		0x72, 0xf3, 0xda, 0xa6, 0x23, 0x25, 0xaf, 0x02, 0x1a, 0x68,
		0xf7, 0x07, 0x51, 0x1a),
	  { NULL, 0 },
	  chunk_from_chars(
		0xe5, 0x56, 0x43, 0x00, 0xc3, 0x60, 0xac, 0x72, 0x90, 0x86,
		0xe2, 0xcc, 0x80, 0x6e, 0x82, 0x8a, 0x84, 0x87, 0x7f, 0x1e,
		0xb8, 0xe5, 0xd9, 0x74, 0xd8, 0x73, 0xe0, 0x65, 0x22, 0x49,
		0x01, 0x55, 0x5f, 0xb8, 0x82, 0x15, 0x90, 0xa3, 0x3b, 0xac,
		0xc6, 0x1e, 0x39, 0x70, 0x1c, 0xf9, 0xb4, 0x6b, 0xd2, 0x5b,
		0xf5, 0xf0, 0x59, 0x5b, 0xbe, 0x24, 0x65, 0x51, 0x41, 0x43,
		0x8e, 0x7a, 0x10, 0x0b)
	},
	/* Test 2 */
	{ chunk_from_chars(
		0x30, 0x2e, 0x02, 0x01, 0x00, 0x30, 0x05, 0x06, 0x03, 0x2b,
		0x65, 0x70, 0x04, 0x22, 0x04, 0x20, 0x4c, 0xcd, 0x08, 0x9b,
		0x28, 0xff, 0x96, 0xda, 0x9d, 0xb6, 0xc3, 0x46, 0xec, 0x11,
		0x4e, 0x0f, 0x5b, 0x8a, 0x31, 0x9f, 0x35, 0xab, 0xa6, 0x24,
		0xda, 0x8c, 0xf6, 0xed, 0x4f, 0xb8, 0xa6, 0xfb),
	  chunk_from_chars(
		0x30, 0x2a, 0x30, 0x05, 0x06, 0x03, 0x2b, 0x65, 0x70, 0x03,
		0x21, 0x00, 0x3d, 0x40, 0x17, 0xc3, 0xe8, 0x43, 0x89, 0x5a,
		0x92, 0xb7, 0x0a, 0xa7, 0x4d, 0x1b, 0x7e, 0xbc, 0x9c, 0x98,
		0x2c, 0xcf, 0x2e, 0xc4, 0x96, 0x8c, 0xc0, 0xcd, 0x55, 0xf1,
		0x2a, 0xf4, 0x66, 0x0c),
	  chunk_from_chars(
		0x72),
	  chunk_from_chars(
		0x92, 0xa0, 0x09, 0xa9, 0xf0, 0xd4, 0xca, 0xb8, 0x72, 0x0e,
		0x82, 0x0b, 0x5f, 0x64, 0x25, 0x40, 0xa2, 0xb2, 0x7b, 0x54,
		0x16, 0x50, 0x3f, 0x8f, 0xb3, 0x76, 0x22, 0x23, 0xeb, 0xdb,
		0x69, 0xda, 0x08, 0x5a, 0xc1, 0xe4, 0x3e, 0x15, 0x99, 0x6e,
		0x45, 0x8f, 0x36, 0x13, 0xd0, 0xf1, 0x1d, 0x8c, 0x38, 0x7b,
		0x2e, 0xae, 0xb4, 0x30, 0x2a, 0xee, 0xb0, 0x0d, 0x29, 0x16,
		0x12, 0xbb, 0x0c, 0x00)
	},
	/* Test 3 */
	{ chunk_from_chars(
		0x30, 0x2e, 0x02, 0x01, 0x00, 0x30, 0x05, 0x06, 0x03, 0x2b,
		0x65, 0x70, 0x04, 0x22, 0x04, 0x20, 0xc5, 0xaa, 0x8d, 0xf4,
		0x3f, 0x9f, 0x83, 0x7b, 0xed, 0xb7, 0x44, 0x2f, 0x31, 0xdc,
		0xb7, 0xb1, 0x66, 0xd3, 0x85, 0x35,0x07, 0x6f, 0x09, 0x4b,
		0x85, 0xce, 0x3a, 0x2e, 0x0b, 0x44, 0x58, 0xf7),
	  chunk_from_chars(
		0x30, 0x2a, 0x30, 0x05, 0x06, 0x03, 0x2b, 0x65, 0x70, 0x03,
		0x21, 0x00, 0xfc, 0x51, 0xcd, 0x8e, 0x62, 0x18, 0xa1, 0xa3,
		0x8d, 0xa4, 0x7e, 0xd0, 0x02, 0x30, 0xf0, 0x58, 0x08, 0x16,
		0xed, 0x13, 0xba, 0x33, 0x03, 0xac, 0x5d, 0xeb, 0x91, 0x15,
		0x48, 0x90, 0x80, 0x25),
	  chunk_from_chars(
		0xaf, 0x82),
	  chunk_from_chars(
		0x62, 0x91, 0xd6, 0x57, 0xde, 0xec, 0x24, 0x02, 0x48, 0x27,
		0xe6, 0x9c, 0x3a, 0xbe, 0x01, 0xa3, 0x0c, 0xe5, 0x48, 0xa2,
		0x84, 0x74, 0x3a, 0x44, 0x5e, 0x36, 0x80, 0xd7, 0xdb, 0x5a,
		0xc3, 0xac, 0x18, 0xff, 0x9b, 0x53, 0x8d, 0x16, 0xf2, 0x90,
		0xae, 0x67, 0xf7, 0x60, 0x98, 0x4d, 0xc6, 0x59, 0x4a, 0x7c,
		0x15, 0xe9, 0x71, 0x6e, 0xd2, 0x8d, 0xc0, 0x27, 0xbe, 0xce,
		0xea, 0x1e, 0xc4, 0x0a)
	},
	/* Test 1024 */
	{ chunk_from_chars(
		0x30, 0x2e, 0x02, 0x01, 0x00, 0x30, 0x05, 0x06, 0x03, 0x2b,
		0x65, 0x70, 0x04, 0x22, 0x04, 0x20, 0xf5, 0xe5, 0x76, 0x7c,
		0xf1, 0x53, 0x31, 0x95, 0x17, 0x63, 0x0f, 0x22, 0x68, 0x76,
		0xb8, 0x6c, 0x81, 0x60, 0xcc, 0x58, 0x3b, 0xc0, 0x13, 0x74,
		0x4c, 0x6b, 0xf2, 0x55, 0xf5, 0xcc, 0x0e, 0xe5),
	  chunk_from_chars(
		0x30, 0x2a, 0x30, 0x05, 0x06, 0x03, 0x2b, 0x65, 0x70, 0x03,
		0x21, 0x00, 0x27, 0x81, 0x17, 0xfc, 0x14, 0x4c, 0x72, 0x34,
		0x0f, 0x67, 0xd0, 0xf2, 0x31, 0x6e, 0x83, 0x86, 0xce, 0xff,
		0xbf, 0x2b, 0x24, 0x28, 0xc9, 0xc5, 0x1f, 0xef, 0x7c, 0x59,
		0x7f, 0x1d, 0x42, 0x6e),
	  chunk_from_chars(
		0x08, 0xb8, 0xb2, 0xb7, 0x33, 0x42, 0x42, 0x43, 0x76, 0x0f,
		0xe4, 0x26, 0xa4, 0xb5, 0x49, 0x08, 0x63, 0x21, 0x10, 0xa6,
		0x6c, 0x2f, 0x65, 0x91, 0xea, 0xbd, 0x33, 0x45, 0xe3, 0xe4,
		0xeb, 0x98, 0xfa, 0x6e, 0x26, 0x4b, 0xf0, 0x9e, 0xfe, 0x12,
		0xee, 0x50, 0xf8, 0xf5, 0x4e, 0x9f, 0x77, 0xb1, 0xe3, 0x55,
		0xf6, 0xc5, 0x05, 0x44, 0xe2, 0x3f, 0xb1, 0x43, 0x3d, 0xdf,
		0x73, 0xbe, 0x84, 0xd8, 0x79, 0xde, 0x7c, 0x00, 0x46, 0xdc,
		0x49, 0x96, 0xd9, 0xe7, 0x73, 0xf4, 0xbc, 0x9e, 0xfe, 0x57,
		0x38, 0x82, 0x9a, 0xdb, 0x26, 0xc8, 0x1b, 0x37, 0xc9, 0x3a,
		0x1b, 0x27, 0x0b, 0x20, 0x32, 0x9d, 0x65, 0x86, 0x75, 0xfc,

		0x6e, 0xa5, 0x34, 0xe0, 0x81, 0x0a, 0x44, 0x32, 0x82, 0x6b,
		0xf5, 0x8c, 0x94, 0x1e, 0xfb, 0x65, 0xd5, 0x7a, 0x33, 0x8b,
		0xbd, 0x2e, 0x26, 0x64, 0x0f, 0x89, 0xff, 0xbc, 0x1a, 0x85,
		0x8e, 0xfc, 0xb8, 0x55, 0x0e, 0xe3, 0xa5, 0xe1, 0x99, 0x8b,
		0xd1, 0x77, 0xe9, 0x3a, 0x73, 0x63, 0xc3, 0x44, 0xfe, 0x6b,
		0x19, 0x9e, 0xe5, 0xd0, 0x2e, 0x82, 0xd5, 0x22, 0xc4, 0xfe,
		0xba, 0x15, 0x45, 0x2f, 0x80, 0x28, 0x8a, 0x82, 0x1a, 0x57,
		0x91, 0x16, 0xec, 0x6d, 0xad, 0x2b, 0x3b, 0x31, 0x0d, 0xa9,
		0x03, 0x40, 0x1a, 0xa6, 0x21, 0x00, 0xab, 0x5d, 0x1a, 0x36,
		0x55, 0x3e, 0x06, 0x20, 0x3b, 0x33, 0x89, 0x0c, 0xc9, 0xb8,

		0x32, 0xf7, 0x9e, 0xf8, 0x05, 0x60, 0xcc, 0xb9, 0xa3, 0x9c,
		0xe7, 0x67, 0x96, 0x7e, 0xd6, 0x28, 0xc6, 0xad, 0x57, 0x3c,
		0xb1, 0x16, 0xdb, 0xef, 0xef, 0xd7, 0x54, 0x99, 0xda, 0x96,
		0xbd, 0x68, 0xa8, 0xa9, 0x7b, 0x92, 0x8a, 0x8b, 0xbc, 0x10,
		0x3b, 0x66, 0x21, 0xfc, 0xde, 0x2b, 0xec, 0xa1, 0x23, 0x1d,
		0x20, 0x6b, 0xe6, 0xcd, 0x9e, 0xc7, 0xaf, 0xf6, 0xf6, 0xc9,
		0x4f, 0xcd, 0x72, 0x04, 0xed, 0x34, 0x55, 0xc6, 0x8c, 0x83,
		0xf4, 0xa4, 0x1d, 0xa4, 0xaf, 0x2b, 0x74, 0xef, 0x5c, 0x53,
		0xf1, 0xd8, 0xac, 0x70, 0xbd, 0xcb, 0x7e, 0xd1, 0x85, 0xce,
		0x81, 0xbd, 0x84, 0x35, 0x9d, 0x44, 0x25, 0x4d, 0x95, 0x62,

		0x9e, 0x98, 0x55, 0xa9, 0x4a, 0x7c, 0x19, 0x58, 0xd1, 0xf8,
		0xad, 0xa5, 0xd0, 0x53, 0x2e, 0xd8, 0xa5, 0xaa, 0x3f, 0xb2,
		0xd1, 0x7b, 0xa7, 0x0e, 0xb6, 0x24, 0x8e, 0x59, 0x4e, 0x1a,
		0x22, 0x97, 0xac, 0xbb, 0xb3, 0x9d, 0x50, 0x2f, 0x1a, 0x8c,
		0x6e, 0xb6, 0xf1, 0xce, 0x22, 0xb3, 0xde, 0x1a, 0x1f, 0x40,
		0xcc, 0x24, 0x55, 0x41, 0x19, 0xa8, 0x31, 0xa9, 0xaa, 0xd6,
		0x07, 0x9c, 0xad, 0x88, 0x42, 0x5d, 0xe6, 0xbd, 0xe1, 0xa9,
		0x18, 0x7e, 0xbb, 0x60, 0x92, 0xcf, 0x67, 0xbf, 0x2b, 0x13,
		0xfd, 0x65, 0xf2, 0x70, 0x88, 0xd7, 0x8b, 0x7e, 0x88, 0x3c,
		0x87, 0x59, 0xd2, 0xc4, 0xf5, 0xc6, 0x5a, 0xdb, 0x75, 0x53,

		0x87, 0x8a, 0xd5, 0x75, 0xf9, 0xfa, 0xd8, 0x78, 0xe8, 0x0a,
		0x0c, 0x9b, 0xa6, 0x3b, 0xcb, 0xcc, 0x27, 0x32, 0xe6, 0x94,
		0x85, 0xbb, 0xc9, 0xc9, 0x0b, 0xfb, 0xd6, 0x24, 0x81, 0xd9,
		0x08, 0x9b, 0xec, 0xcf, 0x80, 0xcf, 0xe2, 0xdf, 0x16, 0xa2,
		0xcf, 0x65, 0xbd, 0x92, 0xdd, 0x59, 0x7b, 0x07, 0x07, 0xe0,
		0x91, 0x7a, 0xf4, 0x8b, 0xbb, 0x75, 0xfe, 0xd4, 0x13, 0xd2,
		0x38, 0xf5, 0x55, 0x5a, 0x7a, 0x56, 0x9d, 0x80, 0xc3, 0x41,
		0x4a, 0x8d, 0x08, 0x59, 0xdc, 0x65, 0xa4, 0x61, 0x28, 0xba,
		0xb2, 0x7a, 0xf8, 0x7a, 0x71, 0x31, 0x4f, 0x31, 0x8c, 0x78,
		0x2b, 0x23, 0xeb, 0xfe, 0x80, 0x8b, 0x82, 0xb0, 0xce, 0x26,

		0x40, 0x1d, 0x2e, 0x22, 0xf0, 0x4d, 0x83, 0xd1, 0x25, 0x5d,
		0xc5, 0x1a, 0xdd, 0xd3, 0xb7, 0x5a, 0x2b, 0x1a, 0xe0, 0x78,
		0x45, 0x04, 0xdf, 0x54, 0x3a, 0xf8, 0x96, 0x9b, 0xe3, 0xea,
		0x70, 0x82, 0xff, 0x7f, 0xc9, 0x88, 0x8c, 0x14, 0x4d, 0xa2,
		0xaf, 0x58, 0x42, 0x9e, 0xc9, 0x60, 0x31, 0xdb, 0xca, 0xd3,
		0xda, 0xd9, 0xaf, 0x0d, 0xcb, 0xaa, 0xaf, 0x26, 0x8c, 0xb8,
		0xfc, 0xff, 0xea, 0xd9, 0x4f, 0x3c, 0x7c, 0xa4, 0x95, 0xe0,
		0x56, 0xa9, 0xb4, 0x7a, 0xcd, 0xb7, 0x51, 0xfb, 0x73, 0xe6,
		0x66, 0xc6, 0xc6, 0x55, 0xad, 0xe8, 0x29, 0x72, 0x97, 0xd0,
		0x7a, 0xd1, 0xba, 0x5e, 0x43, 0xf1, 0xbc, 0xa3, 0x23, 0x01,

		0x65, 0x13, 0x39, 0xe2, 0x29, 0x04, 0xcc, 0x8c, 0x42, 0xf5,
		0x8c, 0x30, 0xc0, 0x4a, 0xaf, 0xdb, 0x03, 0x8d, 0xda, 0x08,
		0x47, 0xdd, 0x98, 0x8d, 0xcd, 0xa6, 0xf3, 0xbf, 0xd1, 0x5c,
		0x4b, 0x4c, 0x45, 0x25, 0x00, 0x4a, 0xa0, 0x6e, 0xef, 0xf8,
		0xca, 0x61, 0x78, 0x3a, 0xac, 0xec, 0x57, 0xfb, 0x3d, 0x1f,
		0x92, 0xb0, 0xfe, 0x2f, 0xd1, 0xa8, 0x5f, 0x67, 0x24, 0x51,
		0x7b, 0x65, 0xe6, 0x14, 0xad, 0x68, 0x08, 0xd6, 0xf6, 0xee,
		0x34, 0xdf, 0xf7, 0x31, 0x0f, 0xdc, 0x82, 0xae, 0xbf, 0xd9,
		0x04, 0xb0, 0x1e, 0x1d, 0xc5, 0x4b, 0x29, 0x27, 0x09, 0x4b,
		0x2d, 0xb6, 0x8d, 0x6f, 0x90, 0x3b, 0x68, 0x40, 0x1a, 0xde,

		0xbf, 0x5a, 0x7e, 0x08, 0xd7, 0x8f, 0xf4, 0xef, 0x5d, 0x63,
		0x65, 0x3a, 0x65, 0x04, 0x0c, 0xf9, 0xbf, 0xd4, 0xac, 0xa7,
		0x98, 0x4a, 0x74, 0xd3, 0x71, 0x45, 0x98, 0x67, 0x80, 0xfc,
		0x0b, 0x16, 0xac, 0x45, 0x16, 0x49, 0xde, 0x61, 0x88, 0xa7,
		0xdb, 0xdf, 0x19, 0x1f, 0x64, 0xb5, 0xfc, 0x5e, 0x2a, 0xb4,
		0x7b, 0x57, 0xf7, 0xf7, 0x27, 0x6c, 0xd4, 0x19, 0xc1, 0x7a,
		0x3c, 0xa8, 0xe1, 0xb9, 0x39, 0xae, 0x49, 0xe4, 0x88, 0xac,
		0xba, 0x6b, 0x96, 0x56, 0x10, 0xb5, 0x48, 0x01, 0x09, 0xc8,
		0xb1, 0x7b, 0x80, 0xe1, 0xb7, 0xb7, 0x50, 0xdf, 0xc7, 0x59,
		0x8d, 0x5d, 0x50, 0x11, 0xfd, 0x2d, 0xcc, 0x56, 0x00, 0xa3,

		0x2e, 0xf5, 0xb5, 0x2a, 0x1e, 0xcc, 0x82, 0x0e, 0x30, 0x8a,
		0xa3, 0x42, 0x72, 0x1a, 0xac, 0x09, 0x43, 0xbf, 0x66, 0x86,
		0xb6, 0x4b, 0x25, 0x79, 0x37, 0x65, 0x04, 0xcc, 0xc4, 0x93,
		0xd9, 0x7e, 0x6a, 0xed, 0x3f, 0xb0, 0xf9, 0xcd, 0x71, 0xa4,
		0x3d, 0xd4, 0x97, 0xf0, 0x1f, 0x17, 0xc0, 0xe2, 0xcb, 0x37,
		0x97, 0xaa, 0x2a, 0x2f, 0x25, 0x66, 0x56, 0x16, 0x8e, 0x6c,
		0x49, 0x6a, 0xfc, 0x5f, 0xb9, 0x32, 0x46, 0xf6, 0xb1, 0x11,
		0x63, 0x98, 0xa3, 0x46, 0xf1, 0xa6, 0x41, 0xf3, 0xb0, 0x41,
		0xe9, 0x89, 0xf7, 0x91, 0x4f, 0x90, 0xcc, 0x2c, 0x7f, 0xff,
		0x35, 0x78, 0x76, 0xe5, 0x06, 0xb5, 0x0d, 0x33, 0x4b, 0xa7,

		0x7c, 0x22, 0x5b, 0xc3, 0x07, 0xba, 0x53, 0x71, 0x52, 0xf3,
		0xf1, 0x61, 0x0e, 0x4e, 0xaf, 0xe5, 0x95, 0xf6, 0xd9, 0xd9,
		0x0d, 0x11, 0xfa, 0xa9, 0x33, 0xa1, 0x5e, 0xf1, 0x36, 0x95,
		0x46, 0x86, 0x8a, 0x7f, 0x3a, 0x45, 0xa9, 0x67, 0x68, 0xd4,
		0x0f, 0xd9, 0xd0, 0x34, 0x12, 0xc0, 0x91, 0xc6, 0x31, 0x5c,
		0xf4, 0xfd, 0xe7, 0xcb, 0x68, 0x60, 0x69, 0x37, 0x38, 0x0d,
		0xb2, 0xea, 0xaa, 0x70, 0x7b, 0x4c, 0x41, 0x85, 0xc3, 0x2e,
		0xdd, 0xcd, 0xd3, 0x06, 0x70, 0x5e, 0x4d, 0xc1, 0xff, 0xc8,
		0x72, 0xee, 0xee, 0x47, 0x5a, 0x64, 0xdf, 0xac, 0x86, 0xab,
		0xa4, 0x1c, 0x06, 0x18, 0x98, 0x3f, 0x87, 0x41, 0xc5, 0xef,

		0x68, 0xd3, 0xa1, 0x01, 0xe8, 0xa3, 0xb8, 0xca, 0xc6, 0x0c,
		0x90, 0x5c, 0x15, 0xfc, 0x91, 0x08, 0x40, 0xb9, 0x4c, 0x00,
		0xa0, 0xb9, 0xd0),
	  chunk_from_chars(
		0x0a, 0xab, 0x4c, 0x90, 0x05, 0x01, 0xb3, 0xe2, 0x4d, 0x7c,
		0xdf, 0x46, 0x63, 0x32, 0x6a, 0x3a, 0x87, 0xdf, 0x5e, 0x48,
		0x43, 0xb2, 0xcb, 0xdb, 0x67, 0xcb, 0xf6, 0xe4, 0x60, 0xfe,
		0xc3, 0x50, 0xaa, 0x53, 0x71, 0xb1, 0x50, 0x8f, 0x9f, 0x45,
		0x28, 0xec, 0xea, 0x23, 0xc4, 0x36, 0xd9, 0x4b, 0x5e, 0x8f,
		0xcd, 0x4f, 0x68, 0x1e, 0x30, 0xa6, 0xac, 0x00, 0xa9, 0x70,
		0x4a, 0x18, 0x8a, 0x03)
	},
	/* Test SHA(abc) */
	{ chunk_from_chars(
		0x30, 0x2e, 0x02, 0x01, 0x00, 0x30, 0x05, 0x06, 0x03, 0x2b,
		0x65, 0x70, 0x04, 0x22, 0x04, 0x20, 0x83, 0x3f, 0xe6, 0x24,
		0x09, 0x23, 0x7b, 0x9d, 0x62, 0xec, 0x77, 0x58, 0x75, 0x20,
		0x91, 0x1e, 0x9a, 0x75, 0x9c, 0xec, 0x1d, 0x19, 0x75, 0x5b,
		0x7d, 0xa9, 0x01, 0xb9, 0x6d, 0xca, 0x3d, 0x42),
	  chunk_from_chars(
		0x30, 0x2a, 0x30, 0x05, 0x06, 0x03, 0x2b, 0x65, 0x70, 0x03,
		0x21, 0x00, 0xec, 0x17, 0x2b, 0x93, 0xad, 0x5e, 0x56, 0x3b,
		0xf4, 0x93, 0x2c, 0x70, 0xe1, 0x24, 0x50, 0x34, 0xc3, 0x54,
		0x67, 0xef, 0x2e, 0xfd, 0x4d, 0x64, 0xeb, 0xf8, 0x19, 0x68,
		0x34, 0x67, 0xe2, 0xbf),
	  chunk_from_chars(
		0xdd, 0xaf, 0x35, 0xa1, 0x93, 0x61, 0x7a, 0xba, 0xcc, 0x41,
		0x73, 0x49, 0xae, 0x20, 0x41, 0x31, 0x12, 0xe6, 0xfa, 0x4e,
		0x89, 0xa9, 0x7e, 0xa2, 0x0a, 0x9e, 0xee, 0xe6, 0x4b, 0x55,
		0xd3, 0x9a, 0x21, 0x92, 0x99, 0x2a, 0x27, 0x4f, 0xc1, 0xa8,
		0x36, 0xba, 0x3c, 0x23, 0xa3, 0xfe, 0xeb, 0xbd, 0x45, 0x4d,
		0x44, 0x23, 0x64, 0x3c, 0xe8, 0x0e, 0x2a, 0x9a, 0xc9, 0x4f,
		0xa5, 0x4c, 0xa4, 0x9f),
	  chunk_from_chars(
		0xdc, 0x2a, 0x44, 0x59, 0xe7, 0x36, 0x96, 0x33, 0xa5, 0x2b,
		0x1b, 0xf2, 0x77, 0x83, 0x9a, 0x00, 0x20, 0x10, 0x09, 0xa3,
		0xef, 0xbf, 0x3e, 0xcb, 0x69, 0xbe, 0xa2, 0x18, 0x6c, 0x26,
		0xb5, 0x89, 0x09, 0x35, 0x1f, 0xc9, 0xac, 0x90, 0xb3, 0xec,
		0xfd, 0xfb, 0xc7, 0xc6, 0x64, 0x31, 0xe0, 0x30, 0x3d, 0xca,
		0x17, 0x9c, 0x13, 0x8a, 0xc1, 0x7a, 0xd9, 0xbe, 0xf1, 0x17,
		0x73, 0x31, 0xa7, 0x04)
	}
};

START_TEST(test_ed25519_sign)
{
	private_key_t *key;
	public_key_t *pubkey, *public;
	chunk_t sig, encoding;

	/* load private key */
	key = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_ED25519,
					BUILD_BLOB_ASN1_DER, sig_tests[_i].key, BUILD_END);
	ck_assert(key != NULL);
	ck_assert(key->get_encoding(key, PRIVKEY_ASN1_DER, &encoding));
	ck_assert(chunk_equals(encoding, sig_tests[_i].key));
	chunk_free(&encoding);

	/* load public key */
	pubkey = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_ED25519,
					BUILD_BLOB_ASN1_DER, sig_tests[_i].pubkey, BUILD_END);
	ck_assert(pubkey != NULL);
	ck_assert(pubkey->get_encoding(pubkey, PUBKEY_SPKI_ASN1_DER, &encoding));
	ck_assert(chunk_equals(encoding, sig_tests[_i].pubkey));
	chunk_free(&encoding);

	/* compare public keys */
	public = key->get_public_key(key);
	ck_assert(public != NULL);
	ck_assert(public->equals(public, pubkey));

	/* sign */
	ck_assert(key->sign(key, SIGN_ED25519, NULL, sig_tests[_i].msg, &sig));
	ck_assert(sig.len == 64);
	ck_assert(chunk_equals(sig, sig_tests[_i].sig));

	/* verify */
	ck_assert(pubkey->verify(pubkey, SIGN_ED25519, NULL, sig_tests[_i].msg,
							 sig_tests[_i].sig));

	/* cleanup */
	key->destroy(key);
	pubkey->destroy(pubkey);
	public->destroy(public);
	chunk_free(&sig);
}
END_TEST

START_TEST(test_ed25519_gen)
{
	private_key_t *key, *key2;
	public_key_t *pubkey, *pubkey2;
	chunk_t msg = chunk_from_str("Ed25519"), sig, encoding, fp_priv, fp_pub;

	/* generate private key */
	key = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_ED25519,
							 BUILD_KEY_SIZE, 256, BUILD_END);
	ck_assert(key != NULL);
	ck_assert(key->get_type(key) == KEY_ED25519);
	ck_assert(key->get_keysize(key) == 256);
	ck_assert(!key->get_encoding(key, PRIVKEY_PGP, &encoding));
	ck_assert(key->get_encoding(key, PRIVKEY_PEM, &encoding));
	ck_assert(encoding.ptr != NULL);
	ck_assert(strstr(encoding.ptr, "PRIVATE KEY"));
	chunk_free(&encoding);

	/* clone private key */
	key2 = key->get_ref(key);
	ck_assert(key2);
	key2->destroy(key2);

	/* decryption not supported */
	ck_assert(!key->decrypt(key, ENCRYPT_UNKNOWN, msg, NULL));

	/* wrong signature scheme */
	ck_assert(!key->sign(key, SIGN_ED448, NULL, msg, &sig));

	/* correct signature scheme*/
	ck_assert(key->sign(key, SIGN_ED25519, NULL, msg, &sig));

	/* export public key */
	pubkey = key->get_public_key(key);
	ck_assert(pubkey != NULL);
	ck_assert(pubkey->get_type(pubkey) == KEY_ED25519);
	ck_assert(pubkey->get_keysize(pubkey) == 256);
	ck_assert(pubkey->get_encoding(pubkey, PUBKEY_PEM, &encoding));
	ck_assert(encoding.ptr != NULL);
	ck_assert(strstr(encoding.ptr, "PUBLIC KEY"));
	chunk_free(&encoding);

	/* generate and compare public and private key fingerprints */
	ck_assert(!key->get_fingerprint(key, KEYID_PGPV4, &fp_priv));
	ck_assert(key->get_fingerprint(key, KEYID_PUBKEY_SHA1, &fp_priv));
	ck_assert(key->get_fingerprint(key, KEYID_PUBKEY_SHA1, &fp_priv));
	ck_assert(fp_priv.ptr != NULL);
	ck_assert(!pubkey->get_fingerprint(pubkey, KEYID_PGPV4, &fp_pub));
	ck_assert(pubkey->get_fingerprint(pubkey, KEYID_PUBKEY_SHA1, &fp_pub));
	ck_assert(pubkey->get_fingerprint(pubkey, KEYID_PUBKEY_SHA1, &fp_pub));
	ck_assert(fp_pub.ptr != NULL);
	ck_assert(chunk_equals(fp_pub, fp_priv));

	/* clone public key */
	pubkey2 = pubkey->get_ref(pubkey);
	ck_assert(pubkey2 != NULL);
	pubkey2->destroy(pubkey2);

	/* encryption not supported */
	ck_assert(!pubkey->encrypt(pubkey, ENCRYPT_UNKNOWN, msg, NULL));

	/* verify with wrong signature scheme */
	ck_assert(!pubkey->verify(pubkey, SIGN_ED448, NULL, msg, sig));

	/* verify with correct signature scheme */
	ck_assert(pubkey->verify(pubkey, SIGN_ED25519, NULL, msg, sig));

	/* cleanup */
	key->destroy(key);
	pubkey->destroy(pubkey);
	chunk_free(&sig);
}
END_TEST

START_TEST(test_ed25519_speed)
{
	private_key_t *key;
	public_key_t *pubkey;
	chunk_t msg = chunk_from_str("Hello Ed25519"), sig;
	int i, count = 1000;

#ifdef HAVE_CLOCK_GETTIME
	struct timespec start, stop;
	clock_gettime(CLOCK_THREAD_CPUTIME_ID, &start);
#endif

	for (i = 0; i < count; i++)
	{
		key = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_ED25519,
								 BUILD_KEY_SIZE, 256, BUILD_END);
		ck_assert(key != NULL);
		ck_assert(key->sign(key, SIGN_ED25519, NULL, msg, &sig));
		pubkey = key->get_public_key(key);
		ck_assert(pubkey != NULL);
		ck_assert(pubkey->verify(pubkey, SIGN_ED25519, NULL, msg, sig));
		key->destroy(key);
		pubkey->destroy(pubkey);
		chunk_free(&sig);
	}

#ifdef HAVE_CLOCK_GETTIME
	clock_gettime(CLOCK_THREAD_CPUTIME_ID, &stop);
	DBG0(DBG_LIB, "%d Ed25519 keys and signatures in %d ms\n", count,
				  (stop.tv_nsec - start.tv_nsec) / 1000000 +
				  (stop.tv_sec - start.tv_sec) * 1000);
#endif
}
END_TEST

static chunk_t zero_pk = chunk_from_chars(
	0x30, 0x2a, 0x30, 0x05, 0x06, 0x03, 0x2b, 0x65, 0x70, 0x03,
	0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00);

START_TEST(test_ed25519_fail)
{
	private_key_t *key;
	public_key_t *pubkey;
	chunk_t blob, sig;
	uint8_t sig1[64];

	/* Invalid private key format */
	key = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_ED25519,
					BUILD_BLOB_ASN1_DER, chunk_empty, BUILD_END);
	ck_assert(key == NULL);

	key = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_ED25519,
					BUILD_EDDSA_PRIV_ASN1_DER, chunk_empty, BUILD_END);
	ck_assert(key == NULL);

	blob = chunk_from_chars(0x04, 0x01, 0x9d);
	key = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_ED25519,
					BUILD_EDDSA_PRIV_ASN1_DER, blob, BUILD_END);
	ck_assert(key == NULL);

	/* Invalid public key format */
	pubkey = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_ED25519,
					BUILD_BLOB_ASN1_DER, chunk_empty, BUILD_END);
	ck_assert(pubkey == NULL);

	blob = chunk_from_chars(0x30, 0x0b, 0x30, 0x05, 0x06, 0x03, 0x2b, 0x65,
							0x70, 0x03, 0x02, 0x00, 0xd7);
	pubkey = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_ED25519,
					BUILD_BLOB_ASN1_DER, blob, BUILD_END);
	ck_assert(pubkey == NULL);

	blob = chunk_from_chars(0x30, 0x0b, 0x30, 0x05, 0x06, 0x03, 0x2b, 0x00,
							0x70, 0x03, 0x02, 0x00, 0xd7);
	pubkey = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_ED25519,
					BUILD_BLOB_ASN1_DER, blob, BUILD_END);
	ck_assert(pubkey == NULL);

	pubkey = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_ED25519,
					BUILD_KEY_SIZE, 256, BUILD_BLOB_ASN1_DER, blob, BUILD_END);
	ck_assert(pubkey == NULL);

	/* Invalid signature format */
	pubkey = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_ED25519,
					BUILD_BLOB_ASN1_DER, sig_tests[0].pubkey, BUILD_END);
	ck_assert(pubkey != NULL);

	ck_assert(!pubkey->verify(pubkey, SIGN_ED25519, NULL, chunk_empty,
							  chunk_empty));

	/* malformed signature */
	sig = chunk_create(sig1, 64);
	memcpy(sig1, sig_tests[0].sig.ptr, 64);
	sig1[63] |= 0xe0;
	ck_assert(!pubkey->verify(pubkey, SIGN_ED25519, NULL, sig_tests[0].msg,
							  sig));

	/* wrong signature */
	memcpy(sig1, sig_tests[0].sig.ptr, 64);
	sig1[0] = 0xe4;
	ck_assert(!pubkey->verify(pubkey, SIGN_ED25519, NULL, sig_tests[0].msg,
							  sig));

	/* detect all-zeroes public key */
	pubkey->destroy(pubkey);
	pubkey = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_ED25519,
					BUILD_BLOB_ASN1_DER, zero_pk, BUILD_END);
	ck_assert(pubkey != NULL);
	ck_assert(!pubkey->verify(pubkey, SIGN_ED25519, NULL, sig_tests[0].msg,
							  sig));
	pubkey->destroy(pubkey);
}
END_TEST

Suite *ed25519_suite_create()
{
	Suite *s;
	TCase *tc;

	s = suite_create("ed25519");

	tc = tcase_create("ed25519_sign");
	tcase_add_loop_test(tc, test_ed25519_sign, 0, countof(sig_tests));
	suite_add_tcase(s, tc);

	tc = tcase_create("ed25519_gen");
	tcase_add_test(tc, test_ed25519_gen);
	suite_add_tcase(s, tc);

	tc = tcase_create("ed25519_fail");
	tcase_add_test(tc, test_ed25519_fail);
	suite_add_tcase(s, tc);

	tc = tcase_create("ed25519_speed");
	test_case_set_timeout(tc, 10);
	tcase_add_test(tc, test_ed25519_speed);
	suite_add_tcase(s, tc);

	return s;
}
