RSAKey::initPublicKey() - Code Metrics - Inspection of "PHPECC v0.4 integration" - Spomky-Labs/jose - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 022625...2b82d4 )

by Florent

created 2016-06-28 11:31 UTC

RSAKey::initPublicKey() A

↳ Parent: RSAKey

Complexity

Conditions	1
Paths	1

Size

Total Lines	16
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	16
rs	9.4285
c	0
b	0
f	0
cc	1
eloc	12
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 Assert\Assertion;
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);
        }
        Assertion::false(false === $res, 'Unable to load the key');

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

Spomky-Labs / jose

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RSAKey::initPublicKey() A

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