RSAKey::__toString() - Code Metrics - Inspection of "Bugs fixed" - Spomky-Labs/jose - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( cc163d...6f4d42 )

by Florent

created 2016-02-28 17:28 UTC

RSAKey::__toString() A

↳ Parent: RSAKey

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Metric	Value
dl	0
loc	4
rs	10
cc	1
eloc	2
nc	1
nop	0

<?php

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014-2016 Spomky-Labs
 *
 * This software may be modified and distributed under the terms
 * of the MIT license.  See the LICENSE file for details.
 */

namespace Jose\KeyConverter;

use Base64Url\Base64Url;
use FG\ASN1\Universal\BitString;
use FG\ASN1\Universal\Integer;
use FG\ASN1\Universal\NullObject;
use FG\ASN1\Universal\ObjectIdentifier;
use FG\ASN1\Universal\OctetString;
use FG\ASN1\Universal\Sequence;
use Jose\Object\JWKInterface;

final class RSAKey extends Sequence
{
    /**
     * @var bool
     */
    private $private = false;

    /**
     * @var array
     */
    private $values = [];

    /**
     * @param \Jose\Object\JWKInterface|string|array $data
     */
    public function __construct($data)
    {
        parent::__construct();

        if ($data instanceof JWKInterface) {
            $this->loadJWK($data->getAll());
        } elseif (is_array($data)) {
            $this->loadJWK($data);
        } elseif (is_string($data)) {
            $this->loadPEM($data);
        } else {
            throw new \InvalidArgumentException('Unsupported input');
        }
        $this->private = isset($this->values['d']);
    }

    /**
     * @param $data
     *
     * @throws \Exception
     * @throws \FG\ASN1\Exception\ParserException
     *
     * @return array
     */
    private function loadPEM($data)
    {
        $res = openssl_pkey_get_private($data);
        if (false === $res) {
            $res = openssl_pkey_get_public($data);
        }
        if (false === $res) {
            throw new \Exception('Unable to load the key');
        }
        $details = openssl_pkey_get_details($res);
        if (!array_key_exists('rsa', $details)) {
            throw new \Exception('Unable to load the key');
        }

        $this->values['kty'] = 'RSA';
        $keys = [
            'n'  => 'n',
            'e'  => 'e',
            'd'  => 'd',
            'p'  => 'p',
            'q'  => 'q',
            'dp' => 'dmp1',
            'dq' => 'dmq1',
            'qi' => 'iqmp',
        ];
        foreach ($details['rsa'] as $key => $value) {
            if (in_array($key, $keys)) {
                $value = Base64Url::encode($value);
                $this->values[array_search($key, $keys)] = $value;
            }
        }
    }

    /**
     * @param array $jwk
     */
    private function loadJWK(array $jwk)
    {
        if (!array_key_exists('kty', $jwk) || 'RSA' !== $jwk['kty']) {
            throw new \InvalidArgumentException('JWK is not a RSA key');
        }

        $this->values = $jwk;
        if (array_key_exists('p', $jwk)) {
            $this->values['dp'] = isset($jwk['dp']) ? $jwk['dp'] : Base64Url::encode(0);
            $this->values['dq'] = isset($jwk['dq']) ? $jwk['dq'] : Base64Url::encode(0);
            $this->values['qi'] = isset($jwk['qi']) ? $jwk['qi'] : Base64Url::encode(0);
            $this->initPrivateKey();
        } else {
            $this->initPublicKey();
        }
    }

    /**
     * @throws \Exception
     */
    private function initPublicKey()
    {
        $oid_sequence = new Sequence();
        $oid_sequence->addChild(new ObjectIdentifier('1.2.840.113549.1.1.1'));
        $oid_sequence->addChild(new NullObject());
        $this->addChild($oid_sequence);

        $n = new Integer($this->fromBase64ToInteger($this->values['n']));
        $e = new Integer($this->fromBase64ToInteger($this->values['e']));

        $key_sequence = new Sequence();
        $key_sequence->addChild($n);
        $key_sequence->addChild($e);
        $key_bit_string = new BitString(bin2hex($key_sequence->getBinary()));
        $this->addChild($key_bit_string);
    }

    /**
     *
     */
    private function initPrivateKey()
    {
        $this->addChild(new Integer(0));

        $oid_sequence = new Sequence();
        $oid_sequence->addChild(new ObjectIdentifier('1.2.840.113549.1.1.1'));
        $oid_sequence->addChild(new NullObject());
        $this->addChild($oid_sequence);

        $v = new Integer(0);
        $n = new Integer($this->fromBase64ToInteger($this->values['n']));
        $e = new Integer($this->fromBase64ToInteger($this->values['e']));
        $d = new Integer($this->fromBase64ToInteger($this->values['d']));
        $p = new Integer($this->fromBase64ToInteger($this->values['p']));
        $q = new Integer($this->fromBase64ToInteger($this->values['q']));
        $dp = new Integer($this->fromBase64ToInteger($this->values['dp']));
        $dq = new Integer($this->fromBase64ToInteger($this->values['dq']));
        $qi = new Integer($this->fromBase64ToInteger($this->values['qi']));

        $key_sequence = new Sequence();
        $key_sequence->addChild($v);
        $key_sequence->addChild($n);
        $key_sequence->addChild($e);
        $key_sequence->addChild($d);
        $key_sequence->addChild($p);
        $key_sequence->addChild($q);
        $key_sequence->addChild($dp);
        $key_sequence->addChild($dq);
        $key_sequence->addChild($qi);
        $key_octet_string = new OctetString(bin2hex($key_sequence->getBinary()));
        $this->addChild($key_octet_string);
    }

    /**
     * @param string $value
     *
     * @return string
     */
    private function fromBase64ToInteger($value)
    {
        return gmp_strval(gmp_init(current(unpack('H*', Base64Url::decode($value))), 16), 10);
    }

    /**
     * @return bool
     */
    public function isPrivate()
    {
        return $this->private;
    }

    /**
     * @param \Jose\KeyConverter\RSAKey $private
     *
     * @return \Jose\KeyConverter\RSAKey
     */
    public static function toPublic(RSAKey $private)
    {
        $data = $private->toArray();
        $keys = ['p', 'd', 'q', 'dp', 'dq', 'qi'];
        foreach ($keys as $key) {
            if (array_key_exists($key, $data)) {
                unset($data[$key]);
            }
        }

        return new self($data);
    }

    public function __toString()
    {
        return $this->toPEM();
    }

    /**
     * @return array
     */
    public function toArray()
    {
        return $this->values;
    }

    /**
     * @return string
     */
    public function toDER()
    {
        return $this->getBinary();
    }

    /**
     * @return string
     */
    public function toPEM()
    {
        $result = '-----BEGIN '.($this->private ? 'RSA PRIVATE' : 'PUBLIC').' KEY-----'.PHP_EOL;
        $result .= chunk_split(base64_encode($this->getBinary()), 64, PHP_EOL);
        $result .= '-----END '.($this->private ? 'RSA PRIVATE' : 'PUBLIC').' KEY-----'.PHP_EOL;

        return $result;
    }
}


1			<?php
2
3			/*
4			* The MIT License (MIT)
5			*
6			* Copyright (c) 2014-2016 Spomky-Labs
7			*
8			* This software may be modified and distributed under the terms
9			* of the MIT license. See the LICENSE file for details.
10			*/
11
12			namespace Jose\KeyConverter;
13
14			use Base64Url\Base64Url;
15			use FG\ASN1\Universal\BitString;
16			use FG\ASN1\Universal\Integer;
17			use FG\ASN1\Universal\NullObject;
18			use FG\ASN1\Universal\ObjectIdentifier;
19			use FG\ASN1\Universal\OctetString;
20			use FG\ASN1\Universal\Sequence;
21			use Jose\Object\JWKInterface;
22
23			final class RSAKey extends Sequence
24			{
25			/**
26			* @var bool
27			*/
28			private $private = false;
29
30			/**
31			* @var array
32			*/
33			private $values = [];
34
35			/**
36			* @param \Jose\Object\JWKInterface\|string\|array $data
37			*/
38			public function __construct($data)
39			{
40			parent::__construct();
41
42			if ($data instanceof JWKInterface) {
43			$this->loadJWK($data->getAll());
44			} elseif (is_array($data)) {
45			$this->loadJWK($data);
46			} elseif (is_string($data)) {
47			$this->loadPEM($data);
48			} else {
49			throw new \InvalidArgumentException('Unsupported input');
50			}
51			$this->private = isset($this->values['d']);
52			}
53
54			/**
55			* @param $data
56			*
57			* @throws \Exception
58			* @throws \FG\ASN1\Exception\ParserException
59			*
60			* @return array
61			*/
62			private function loadPEM($data)
63			{
64			$res = openssl_pkey_get_private($data);
65			if (false === $res) {
66			$res = openssl_pkey_get_public($data);
67			}
68			if (false === $res) {
69			throw new \Exception('Unable to load the key');
70			}
71			$details = openssl_pkey_get_details($res);
72			if (!array_key_exists('rsa', $details)) {
73			throw new \Exception('Unable to load the key');
74			}
75
76			$this->values['kty'] = 'RSA';
77			$keys = [
78			'n' => 'n',
79			'e' => 'e',
80			'd' => 'd',
81			'p' => 'p',
82			'q' => 'q',
83			'dp' => 'dmp1',
84			'dq' => 'dmq1',
85			'qi' => 'iqmp',
86			];
87			foreach ($details['rsa'] as $key => $value) {
88			if (in_array($key, $keys)) {
89			$value = Base64Url::encode($value);
90			$this->values[array_search($key, $keys)] = $value;
91			}
92			}
93			}
94
95			/**
96			* @param array $jwk
97			*/
98			private function loadJWK(array $jwk)
99			{
100			if (!array_key_exists('kty', $jwk) \|\| 'RSA' !== $jwk['kty']) {
101			throw new \InvalidArgumentException('JWK is not a RSA key');
102			}
103
104			$this->values = $jwk;
105			if (array_key_exists('p', $jwk)) {
106			$this->values['dp'] = isset($jwk['dp']) ? $jwk['dp'] : Base64Url::encode(0);
107			$this->values['dq'] = isset($jwk['dq']) ? $jwk['dq'] : Base64Url::encode(0);
108			$this->values['qi'] = isset($jwk['qi']) ? $jwk['qi'] : Base64Url::encode(0);
109			$this->initPrivateKey();
110			} else {
111			$this->initPublicKey();
112			}
113			}
114
115			/**
116			* @throws \Exception
117			*/
118			private function initPublicKey()
119			{
120			$oid_sequence = new Sequence();
121			$oid_sequence->addChild(new ObjectIdentifier('1.2.840.113549.1.1.1'));
122			$oid_sequence->addChild(new NullObject());
123			$this->addChild($oid_sequence);
124
125			$n = new Integer($this->fromBase64ToInteger($this->values['n']));
126			$e = new Integer($this->fromBase64ToInteger($this->values['e']));
127
128			$key_sequence = new Sequence();
129			$key_sequence->addChild($n);
130			$key_sequence->addChild($e);
131			$key_bit_string = new BitString(bin2hex($key_sequence->getBinary()));
132			$this->addChild($key_bit_string);
133			}
134
135			/**
136			*
137			*/
138			private function initPrivateKey()
139			{
140			$this->addChild(new Integer(0));
141
142			$oid_sequence = new Sequence();
143			$oid_sequence->addChild(new ObjectIdentifier('1.2.840.113549.1.1.1'));
144			$oid_sequence->addChild(new NullObject());
145			$this->addChild($oid_sequence);
146
147			$v = new Integer(0);
148			$n = new Integer($this->fromBase64ToInteger($this->values['n']));
149			$e = new Integer($this->fromBase64ToInteger($this->values['e']));
150			$d = new Integer($this->fromBase64ToInteger($this->values['d']));
151			$p = new Integer($this->fromBase64ToInteger($this->values['p']));
152			$q = new Integer($this->fromBase64ToInteger($this->values['q']));
153			$dp = new Integer($this->fromBase64ToInteger($this->values['dp']));
154			$dq = new Integer($this->fromBase64ToInteger($this->values['dq']));
155			$qi = new Integer($this->fromBase64ToInteger($this->values['qi']));
156
157			$key_sequence = new Sequence();
158			$key_sequence->addChild($v);
159			$key_sequence->addChild($n);
160			$key_sequence->addChild($e);
161			$key_sequence->addChild($d);
162			$key_sequence->addChild($p);
163			$key_sequence->addChild($q);
164			$key_sequence->addChild($dp);
165			$key_sequence->addChild($dq);
166			$key_sequence->addChild($qi);
167			$key_octet_string = new OctetString(bin2hex($key_sequence->getBinary()));
168			$this->addChild($key_octet_string);
169			}
170
171			/**
172			* @param string $value
173			*
174			* @return string
175			*/
176			private function fromBase64ToInteger($value)
177			{
178			return gmp_strval(gmp_init(current(unpack('H*', Base64Url::decode($value))), 16), 10);
179			}
180
181			/**
182			* @return bool
183			*/
184			public function isPrivate()
185			{
186			return $this->private;
187			}
188
189			/**
190			* @param \Jose\KeyConverter\RSAKey $private
191			*
192			* @return \Jose\KeyConverter\RSAKey
193			*/
194			public static function toPublic(RSAKey $private)
195			{
196			$data = $private->toArray();
197			$keys = ['p', 'd', 'q', 'dp', 'dq', 'qi'];
198			foreach ($keys as $key) {
199			if (array_key_exists($key, $data)) {
200			unset($data[$key]);
201			}
202			}
203
204			return new self($data);
205			}
206
207			public function __toString()
208			{
209			return $this->toPEM();
210			}
211
212			/**
213			* @return array
214			*/
215			public function toArray()
216			{
217			return $this->values;
218			}
219
220			/**
221			* @return string
222			*/
223			public function toDER()
224			{
225			return $this->getBinary();
226			}
227
228			/**
229			* @return string
230			*/
231			public function toPEM()
232			{
233			$result = '-----BEGIN '.($this->private ? 'RSA PRIVATE' : 'PUBLIC').' KEY-----'.PHP_EOL;
234			$result .= chunk_split(base64_encode($this->getBinary()), 64, PHP_EOL);
235			$result .= '-----END '.($this->private ? 'RSA PRIVATE' : 'PUBLIC').' KEY-----'.PHP_EOL;
236
237			return $result;
238			}
239			}
240

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RSAKey::__toString() A

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