<?php
/**
 * Copyright (C) 2015-2016 Virgil Security Inc.
 *
 * Lead Maintainer: Virgil Security Inc. <support@virgilsecurity.com>
 *
 * 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.
 *
 *     (3) Neither the name of the copyright holder nor the names of its
 *     contributors may be used to endorse or promote products derived from
 *     this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''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 AUTHOR 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_once "@PHP_MODULE_FILE_NAME@";
include_once "StringSource.php";

/**
 * @coversDefaultClass VirgilStreamSigner
 */
class VirgilStreamSigner_Test extends PHPUnit_Framework_TestCase {

    protected static $cipher;

    public static function setUpBeforeClass() {
        self::$cipher = new VirgilCipher();
    }

    public static function tearDownAfterClass() {
        self::$cipher = NULL;
    }

    /**
     * @covers VirgilStreamSigner::sign
     * @covers VirgilStreamSigner::verify
     */
    public function test_data_sign_verify_with_generated_keys() {
        $initialString = "very long string to be signed";
        $dataSource = new StringSource($initialString);
        $key = VirgilKeyPair::generateRecommended();

        $signer = new VirgilStreamSigner();
        $dataSource->reset();
        $sign = $signer->sign($dataSource, $key->privateKey());
        $dataSource->reset();
        $verifyResult = $signer->verify($dataSource, $sign, $key->publicKey());

        $this->assertEquals($verifyResult, True);
    }

    /**
     * @covers VirgilStreamSigner::sign
     * @covers VirgilStreamSigner::verify
     */
    public function test_data_sign_verify_with_generated_keys_with_password() {
        $initialString = "very long string to be signed";
        $privateKeyPassword = "password";
        $key = VirgilKeyPair::generateRecommended($privateKeyPassword);

        $signer = new VirgilStreamSigner();
        $dataSource = new StringSource($initialString);
        $dataSource->reset();
        $sign = $signer->sign($dataSource, $key->privateKey(), $privateKeyPassword);
        $dataSource->reset();
        $verifyResult = $signer->verify($dataSource, $sign, $key->publicKey());

        $this->assertEquals($verifyResult, True);
    }

    /**
     * @covers VirgilStreamSigner::sign
     * @covers VirgilStreamSigner::verify
     * @expectedException Exception
     */
    public function test_data_sign_verify_with_generated_keys_and_wrong_password() {
        $initialString = "very long string to be signed";
        $privateKeyPassword = "password";
        $key = VirgilKeyPair::generateRecommended($privateKeyPassword);

        $signer = new VirgilStreamSigner();
        $dataSource = new StringSource($initialString);
        $dataSource->reset();
        $sign = $signer->sign($dataSource, $key->privateKey(),
                $privateKeyPassword . "Wrong password");
        $dataSource->reset();
        $verifyResult = $signer->verify($dataSource, $sign, $key->publicKey());

        $this->assertEquals($verifyResult, True);
    }

    /**
     * @covers VirgilStreamSigner::sign
     * @covers VirgilStreamSigner::verify
     */
    public function test_data_sign_verify_with_ec_keys() {
        $publicKeyPem512 =
                "-----BEGIN PUBLIC KEY-----\n".
                "MIGbMBQGByqGSM49AgEGCSskAwMCCAEBDQOBggAEA8GVpzCcTiISVsHjuMZg4gvS\n".
                "nIT5ubLZ6TZ8LRzPjYah5h71TrHOgJVXkPtzpFbHdWdvcSsAMbLCnvEnTlXFMDn5\n".
                "3a3YhN+cTdWZCgleKQCc2keY/alCRdgtjL3po90DuT8WcxSreTlVGkE/TZvCZEes\n".
                "o+yIBPaohqMzfjvj4Yw=\n".
                "-----END PUBLIC KEY-----\n";
        $privateKeyPem512 =
                "-----BEGIN EC PRIVATE KEY-----\n".
                "MIHaAgEBBEBbGZvQqVS+z9QGVlef12ogHS+cGjICfR8oyhBySZTadhRqGmgkWNiS\n".
                "b+IcSjzaw8xEZuIkT/wG/yVlx4Zimk0XoAsGCSskAwMCCAEBDaGBhQOBggAEA8GV\n".
                "pzCcTiISVsHjuMZg4gvSnIT5ubLZ6TZ8LRzPjYah5h71TrHOgJVXkPtzpFbHdWdv\n".
                "cSsAMbLCnvEnTlXFMDn53a3YhN+cTdWZCgleKQCc2keY/alCRdgtjL3po90DuT8W\n".
                "cxSreTlVGkE/TZvCZEeso+yIBPaohqMzfjvj4Yw=\n".
                "-----END EC PRIVATE KEY-----\n";
        $initialString = "very long string to be signed";
        $dataSource = new StringSource($initialString);

        $signer = new VirgilStreamSigner();
        $dataSource->reset();
        $sign = $signer->sign($dataSource, $privateKeyPem512);
        $dataSource->reset();
        $verifyResult = $signer->verify($dataSource, $sign, $publicKeyPem512);

        $this->assertEquals($verifyResult, True);
    }

    /**
     * @covers VirgilStreamSigner::sign
     * @covers VirgilStreamSigner::verify
     * @expectedException Exception
     */
    public function test_data_sign_verify_with_rsa_keys_small_size() {
        $publicKeyPem128 =
                "-----BEGIN PUBLIC KEY-----\n".
                "MCwwDQYJKoZIhvcNAQEBBQADGwAwGAIRAIVxgrPd2i9gvuWr/oT/FKECAwEAAQ==\n".
                "-----END PUBLIC KEY-----\n";
        $privateKeyPem128 =
                "-----BEGIN RSA PRIVATE KEY-----\n".
                "MGICAQACEQCFcYKz3dovYL7lq/6E/xShAgMBAAECECdVnEdUn9nS56+aVx2iwDkC\n".
                "CQC+XFKzIAH+MwIJALN08MfUfeXbAgkAjTtUBB/YOq8CCFpg9LrPS7CtAghJSJ6m\n".
                "C0nIMQ==\n".
                "-----END RSA PRIVATE KEY-----\n";
        $initialString = "string to be signed";
        $dataSource = new StringSource($initialString);


        $signer = new VirgilStreamSigner();
        $dataSource->reset();
        $sign = $signer->sign($dataSource, $privateKeyPem128);
    }

    /**
     * @covers VirgilStreamSigner::sign
     * @covers VirgilStreamSigner::verify
     */
    public function test_data_sign_verify_with_rsa_keys() {
        $publicKeyPem1024 =
                "-----BEGIN PUBLIC KEY-----\n".
                "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC9t5Pw7X+9Y9tk9KXY/mKxj3Jm\n".
                "quAV3djyHx0OViLfb6Qn/O6XQhWTXmE+2C6bdS5am9VYFjGrdU0G1P25OkefCqOy\n".
                "hQP7k2DP43RqfRF/dpkqNFrdAZp3nmUdk8xpfDQYMXfSqPAQUmYs1JXk6ZPePcCD\n".
                "Vnq3/XdQTumxQn5e1wIDAQAB\n".
                "-----END PUBLIC KEY-----\n";
        $privateKeyPem1024 =
                "-----BEGIN RSA PRIVATE KEY-----\n".
                "MIICXQIBAAKBgQC9t5Pw7X+9Y9tk9KXY/mKxj3JmquAV3djyHx0OViLfb6Qn/O6X\n".
                "QhWTXmE+2C6bdS5am9VYFjGrdU0G1P25OkefCqOyhQP7k2DP43RqfRF/dpkqNFrd\n".
                "AZp3nmUdk8xpfDQYMXfSqPAQUmYs1JXk6ZPePcCDVnq3/XdQTumxQn5e1wIDAQAB\n".
                "AoGADFZx8osfcYua6vfWCUSR2oY/pFmcdQ+WWjiXxSTo46r4+/jA82lCyfCrVlDs\n".
                "xwNZ3l6gAzh+Rm48ciNL1M3rdlmmvP6DvueGffxx8zGpRSwp5yrPG18TDxn26hAi\n".
                "NRDUuaE2TAJwwRyy/ocLmwjLDwCqXVUsovgL5o+reujl/UECQQDj1U+Zz25vqNW4\n".
                "ELwcSkTPGn7yp64kqsftW5dEsvKaMIjzHYPuBPtF43SKDgLn8bzf5Q6jHmtwgoQl\n".
                "98gpIrbRAkEA1SvuE2ekXmEIDGY5wPnBHYT0u/orfQuqlaV0Gy+8nel2ntKbFuSf\n".
                "O5iClwvnBydeSjGXFf2BulBNFjO1Lfd1JwJBAMBUJipVrYidIi2MEwBewc+DMn9t\n".
                "hdh2QufgVcYsuhfnuPRiiii4E9ZfuNWCFnnu29614rFY0KHdy+ixT0tKfsECQQCP\n".
                "utr/QnZVHF9s3NA8CSnoWWkaBYek/GS8GZ67ZehrIKrWU3I2cVfbuuzyIxhWfnjY\n".
                "1a7lKNR7ZwFS4vJaV+spAkAXHzK0j2mcWVVGwfbjtTNZMcJXFFMwwChXqrJSmJuf\n".
                "9n6CqsAWIqytPE/eccgCSqU1XGR5gvrsx7NnPvvqilFs\n".
                "-----END RSA PRIVATE KEY-----\n".
        $initialString = "very long string to be signed";
        $dataSource = new StringSource($initialString);

        $signer = new VirgilStreamSigner();
        $dataSource->reset();
        $sign = $signer->sign($dataSource, $privateKeyPem1024);
        $dataSource->reset();
        $verifyResult = $signer->verify($dataSource, $sign, $publicKeyPem1024);

        $this->assertEquals($verifyResult, True);
    }
}

?>