RSAKey - Code Metrics - Inspection of "RSA operation with CRT support added" - Spomky-Labs/jose - Measure and Improve Code Quality continuously with Scrutinizer

Failed Conditions

Push — master ( e3206a...8d8ce8 )

by Florent

created 2016-07-31 12:46 UTC

RSAKey B

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	370
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	10

Importance

Changes	6
Bugs	3	Features	3

Metric	Value
wmc	42
c	6
b	3
f	3
lcom	1
cbo	10
dl	0
loc	370
rs	8.295

24 Methods

Rating	Name	Size	Complexity
A	__construct()	16	4
A	isPublic()	4	1
A	isPrivate()	4	1
A	getModulus()	4	1
A	getModulusLength()	4	1
A	getExponent()	9	2
A	getPublicExponent()	4	1
A	getPrivateExponent()	4	1
A	getPrimes()	4	1
A	getExponents()	4	1
A	getCoefficient()	4	1
A	convertBase64StringToBigInteger()	4	1
B	loadPEM()	29	4
A	loadJWK()	13	2
B	populateCRT()	18	6
A	initPublicKey()	16	1
B	initPrivateKey()	32	1
A	fromBase64ToInteger()	4	1
A	toPublic()	12	3
A	__toString()	4	1
A	toArray()	4	1
A	toDER()	4	1
A	toPEM()	8	3
A	populateBigIntegers()	20	2

How to fix Complexity

<?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;
use Jose\Util\BigInteger;

final class RSAKey extends Sequence
{
    /**
     * @var array
     */
    private $values = [];

    /**
     * @var \Jose\Util\BigInteger
     */
    private $modulus;

    /**
     * @var int
     */
    private $modulus_length;

    /**
     * @var \Jose\Util\BigInteger
     */
    private $public_exponent;

    /**
     * @var \Jose\Util\BigInteger|null
     */
    private $private_exponent = null;

    /**
     * @var \Jose\Util\BigInteger[]
     */
    private $primes = [];

    /**
     * @var \Jose\Util\BigInteger[]
     */
    private $exponents = [];

    /**
     * @var \Jose\Util\BigInteger|null
     */
    private $coefficient = null;


    /**
     * @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->populateBigIntegers();
    }

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

    /**
     * @return bool
     */
    public function isPrivate()
    {
        return array_key_exists('d', $this->values);
    }

    /**
     * @return \Jose\Util\BigInteger
     */
    public function getModulus()
    {
        return $this->modulus;
    }

    /**
     * @return int
     */
    public function getModulusLength()
    {
        return $this->modulus_length;
    }

    /**
     * @return \Jose\Util\BigInteger
     */
    public function getExponent()
    {
        $d = $this->getPrivateExponent();
        if (null !== $d) {
            return $d;
        }

        return $this->getPublicExponent();
    }

    /**
     * @return \Jose\Util\BigInteger
     */
    public function getPublicExponent()
    {
        return $this->public_exponent;
    }

    /**
     * @return \Jose\Util\BigInteger
     */
    public function getPrivateExponent()
    {
        return $this->private_exponent;
    }

    /**
     * @return \Jose\Util\BigInteger[]
     */
    public function getPrimes()
    {
        return $this->primes;
    }

    /**
     * @return \Jose\Util\BigInteger[]
     */
    public function getExponents()
    {
        return $this->exponents;
    }

    /**
     * @return \Jose\Util\BigInteger|null
     */
    public function getCoefficient()
    {
        return $this->coefficient;
    }

    /**
     * @param string $value
     *
     * @return \Jose\Util\BigInteger
     */
    private function convertBase64StringToBigInteger($value)
    {
        return BigInteger::createFromBinaryString(Base64Url::decode($value));
    }

    /**
     * @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('d', $jwk)) {
            $this->populateCRT();
            $this->initPrivateKey();
        } else {
            $this->initPublicKey();
        }
    }

    /**
     * This method adds Chinese Remainder Theorem (CRT) parameters if primes 'p' and 'q' are available.
     */
    private function populateCRT()
    {
        if (!array_key_exists('p', $this->values) && !array_key_exists('q', $this->values)) {
            return;
        }
        if (array_key_exists('dp', $this->values) && array_key_exists('dq', $this->values) && array_key_exists('qi', $this->values)) {
            return;
        }

        $one = BigInteger::createFromDecimal(1);
        $d = BigInteger::createFromBinaryString(Base64Url::decode($this->values['d']));
        $p = BigInteger::createFromBinaryString(Base64Url::decode($this->values['p']));
        $q = BigInteger::createFromBinaryString(Base64Url::decode($this->values['q']));

        $this->values['dp'] = Base64Url::encode($d->mod($p->subtract($one))->toBytes());
        $this->values['dq'] = Base64Url::encode($d->mod($q->subtract($one))->toBytes());
        $this->values['qi'] = Base64Url::encode($q->modInverse($p)->toBytes());
    }

    /**
     * @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->ddChild(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);
    }

    /**
     * @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->isPrivate() ? 'RSA PRIVATE' : 'PUBLIC').' KEY-----'.PHP_EOL;
        $result .= chunk_split(base64_encode($this->getBinary()), 64, PHP_EOL);
        $result .= '-----END '.($this->isPrivate() ? 'RSA PRIVATE' : 'PUBLIC').' KEY-----'.PHP_EOL;

        return $result;
    }

    private function populateBigIntegers()
    {
        $this->modulus = $this->convertBase64StringToBigInteger($this->values['n']);
        $this->modulus_length = mb_strlen($this->getModulus()->toBytes(), '8bit');
        $this->public_exponent = $this->convertBase64StringToBigInteger($this->values['e']);

        if (true === $this->isPrivate()) {
            $this->private_exponent = $this->convertBase64StringToBigInteger($this->values['d']);

            $this->primes = [
                $this->convertBase64StringToBigInteger($this->values['p']),
                $this->convertBase64StringToBigInteger($this->values['q']),
            ];
            $this->exponents = [
                $this->convertBase64StringToBigInteger($this->values['dp']),
                $this->convertBase64StringToBigInteger($this->values['dq']),
            ];
            $this->coefficient = $this->convertBase64StringToBigInteger($this->values['qi']);
        }
    }
}


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			use Jose\Util\BigInteger;
24
25			final class RSAKey extends Sequence
26			{
27			/**
28			* @var array
29			*/
30			private $values = [];
31
32			/**
33			* @var \Jose\Util\BigInteger
34			*/
35			private $modulus;
36
37			/**
38			* @var int
39			*/
40			private $modulus_length;
41
42			/**
43			* @var \Jose\Util\BigInteger
44			*/
45			private $public_exponent;
46
47			/**
48			* @var \Jose\Util\BigInteger\|null
49			*/
50			private $private_exponent = null;
51
52			/**
53			* @var \Jose\Util\BigInteger[]
54			*/
55			private $primes = [];
56
57			/**
58			* @var \Jose\Util\BigInteger[]
59			*/
60			private $exponents = [];
61
62			/**
63			* @var \Jose\Util\BigInteger\|null
64			*/
65			private $coefficient = null;
66
67
68			/**
69			* @param \Jose\Object\JWKInterface\|string\|array $data
70			*/
71			public function __construct($data)
72			{
73			parent::__construct();
74
75			if ($data instanceof JWKInterface) {
76			$this->loadJWK($data->getAll());
77			} elseif (is_array($data)) {
78			$this->loadJWK($data);
79			} elseif (is_string($data)) {
80			$this->loadPEM($data);
81			} else {
82			throw new \InvalidArgumentException('Unsupported input');
83			}
84
85			$this->populateBigIntegers();
86			}
87
88			/**
89			* @return bool
90			*/
91			public function isPublic()
92			{
93			return !$this->isPrivate();
94			}
95
96			/**
97			* @return bool
98			*/
99			public function isPrivate()
100			{
101			return array_key_exists('d', $this->values);
102			}
103
104			/**
105			* @return \Jose\Util\BigInteger
106			*/
107			public function getModulus()
108			{
109			return $this->modulus;
110			}
111
112			/**
113			* @return int
114			*/
115			public function getModulusLength()
116			{
117			return $this->modulus_length;
118			}
119
120			/**
121			* @return \Jose\Util\BigInteger
122			*/
123			public function getExponent()
124			{
125			$d = $this->getPrivateExponent();
126			if (null !== $d) {
127			return $d;
128			}
129
130			return $this->getPublicExponent();
131			}
132
133			/**
134			* @return \Jose\Util\BigInteger
135			*/
136			public function getPublicExponent()
137			{
138			return $this->public_exponent;
139			}
140
141			/**
142			* @return \Jose\Util\BigInteger
143			*/
144			public function getPrivateExponent()
145			{
146			return $this->private_exponent;
147			}
148
149			/**
150			* @return \Jose\Util\BigInteger[]
151			*/
152			public function getPrimes()
153			{
154			return $this->primes;
155			}
156
157			/**
158			* @return \Jose\Util\BigInteger[]
159			*/
160			public function getExponents()
161			{
162			return $this->exponents;
163			}
164
165			/**
166			* @return \Jose\Util\BigInteger\|null
167			*/
168			public function getCoefficient()
169			{
170			return $this->coefficient;
171			}
172
173			/**
174			* @param string $value
175			*
176			* @return \Jose\Util\BigInteger
177			*/
178			private function convertBase64StringToBigInteger($value)
179			{
180			return BigInteger::createFromBinaryString(Base64Url::decode($value));
181			}
182
183			/**
184			* @param $data
185			*
186			* @throws \Exception
187			* @throws \FG\ASN1\Exception\ParserException
188			*
189			* @return array
190			*/
191			private function loadPEM($data)
192			{
193			$res = openssl_pkey_get_private($data);
194			if (false === $res) {
195			$res = openssl_pkey_get_public($data);
196			}
197			Assertion::false(false === $res, 'Unable to load the key');
198
199			$details = openssl_pkey_get_details($res);
200			Assertion::keyExists($details, 'rsa', 'Unable to load the key');
201
202			$this->values['kty'] = 'RSA';
203			$keys = [
204			'n' => 'n',
205			'e' => 'e',
206			'd' => 'd',
207			'p' => 'p',
208			'q' => 'q',
209			'dp' => 'dmp1',
210			'dq' => 'dmq1',
211			'qi' => 'iqmp',
212			];
213			foreach ($details['rsa'] as $key => $value) {
214			if (in_array($key, $keys)) {
215			$value = Base64Url::encode($value);
216			$this->values[array_search($key, $keys)] = $value;
217			}
218			}
219			}
220
221			/**
222			* @param array $jwk
223			*/
224			private function loadJWK(array $jwk)
225			{
226			Assertion::keyExists($jwk, 'kty', 'The key parameter "kty" is missing.');
227			Assertion::eq($jwk['kty'], 'RSA', 'The JWK is not a RSA key');
228
229			$this->values = $jwk;
230			if (array_key_exists('d', $jwk)) {
231			$this->populateCRT();
232			$this->initPrivateKey();
233			} else {
234			$this->initPublicKey();
235			}
236			}
237
238			/**
239			* This method adds Chinese Remainder Theorem (CRT) parameters if primes 'p' and 'q' are available.
240			*/
241			private function populateCRT()
242			{
243			if (!array_key_exists('p', $this->values) && !array_key_exists('q', $this->values)) {
244			return;
245			}
246			if (array_key_exists('dp', $this->values) && array_key_exists('dq', $this->values) && array_key_exists('qi', $this->values)) {
247			return;
248			}
249
250			$one = BigInteger::createFromDecimal(1);
251			$d = BigInteger::createFromBinaryString(Base64Url::decode($this->values['d']));
252			$p = BigInteger::createFromBinaryString(Base64Url::decode($this->values['p']));
253			$q = BigInteger::createFromBinaryString(Base64Url::decode($this->values['q']));
254
255			$this->values['dp'] = Base64Url::encode($d->mod($p->subtract($one))->toBytes());
256			$this->values['dq'] = Base64Url::encode($d->mod($q->subtract($one))->toBytes());
257			$this->values['qi'] = Base64Url::encode($q->modInverse($p)->toBytes());
258			}
259
260			/**
261			* @throws \Exception
262			*/
263			private function initPublicKey()
264			{
265			$oid_sequence = new Sequence();
266			$oid_sequence->addChild(new ObjectIdentifier('1.2.840.113549.1.1.1'));
267			$oid_sequence->addChild(new NullObject());
268			$this->addChild($oid_sequence);
269
270			$n = new Integer($this->fromBase64ToInteger($this->values['n']));
271			$e = new Integer($this->fromBase64ToInteger($this->values['e']));
272
273			$key_sequence = new Sequence();
274			$key_sequence->addChild($n);
275			$key_sequence->addChild($e);
276			$key_bit_string = new BitString(bin2hex($key_sequence->getBinary()));
277			$this->addChild($key_bit_string);
278			}
279
280			private function initPrivateKey()
281			{
282			$this->ddChild(new Integer(0));
			0 ignored issues – show Bug introduced 2016-07-31 12:48 UTC by Report Bug Copy Issue Report The method `ddChild()` does not exist on `Jose\KeyConverter\RSAKey`. Did you maybe mean `addChild()`? This check marks calls to methods that do not seem to exist on an object. This is most likely the result of a method being renamed without all references to it being renamed likewise. Loading history...
283
284			$oid_sequence = new Sequence();
285			$oid_sequence->addChild(new ObjectIdentifier('1.2.840.113549.1.1.1'));
286			$oid_sequence->addChild(new NullObject());
287			$this->addChild($oid_sequence);
288
289			$v = new Integer(0);
290			$n = new Integer($this->fromBase64ToInteger($this->values['n']));
291			$e = new Integer($this->fromBase64ToInteger($this->values['e']));
292			$d = new Integer($this->fromBase64ToInteger($this->values['d']));
293			$p = new Integer($this->fromBase64ToInteger($this->values['p']));
294			$q = new Integer($this->fromBase64ToInteger($this->values['q']));
295			$dp = new Integer($this->fromBase64ToInteger($this->values['dp']));
296			$dq = new Integer($this->fromBase64ToInteger($this->values['dq']));
297			$qi = new Integer($this->fromBase64ToInteger($this->values['qi']));
298
299			$key_sequence = new Sequence();
300			$key_sequence->addChild($v);
301			$key_sequence->addChild($n);
302			$key_sequence->addChild($e);
303			$key_sequence->addChild($d);
304			$key_sequence->addChild($p);
305			$key_sequence->addChild($q);
306			$key_sequence->addChild($dp);
307			$key_sequence->addChild($dq);
308			$key_sequence->addChild($qi);
309			$key_octet_string = new OctetString(bin2hex($key_sequence->getBinary()));
310			$this->addChild($key_octet_string);
311			}
312
313			/**
314			* @param string $value
315			*
316			* @return string
317			*/
318			private function fromBase64ToInteger($value)
319			{
320			return gmp_strval(gmp_init(current(unpack('H*', Base64Url::decode($value))), 16), 10);
321			}
322
323			/**
324			* @param \Jose\KeyConverter\RSAKey $private
325			*
326			* @return \Jose\KeyConverter\RSAKey
327			*/
328			public static function toPublic(RSAKey $private)
329			{
330			$data = $private->toArray();
331			$keys = ['p', 'd', 'q', 'dp', 'dq', 'qi'];
332			foreach ($keys as $key) {
333			if (array_key_exists($key, $data)) {
334			unset($data[$key]);
335			}
336			}
337
338			return new self($data);
339			}
340
341			public function __toString()
342			{
343			return $this->toPEM();
344			}
345
346			/**
347			* @return array
348			*/
349			public function toArray()
350			{
351			return $this->values;
352			}
353
354			/**
355			* @return string
356			*/
357			public function toDER()
358			{
359			return $this->getBinary();
360			}
361
362			/**
363			* @return string
364			*/
365			public function toPEM()
366			{
367			$result = '-----BEGIN '.($this->isPrivate() ? 'RSA PRIVATE' : 'PUBLIC').' KEY-----'.PHP_EOL;
368			$result .= chunk_split(base64_encode($this->getBinary()), 64, PHP_EOL);
369			$result .= '-----END '.($this->isPrivate() ? 'RSA PRIVATE' : 'PUBLIC').' KEY-----'.PHP_EOL;
370
371			return $result;
372			}
373
374			private function populateBigIntegers()
375			{
376			$this->modulus = $this->convertBase64StringToBigInteger($this->values['n']);
377			$this->modulus_length = mb_strlen($this->getModulus()->toBytes(), '8bit');
378			$this->public_exponent = $this->convertBase64StringToBigInteger($this->values['e']);
379
380			if (true === $this->isPrivate()) {
381			$this->private_exponent = $this->convertBase64StringToBigInteger($this->values['d']);
382
383			$this->primes = [
384			$this->convertBase64StringToBigInteger($this->values['p']),
385			$this->convertBase64StringToBigInteger($this->values['q']),
386			];
387			$this->exponents = [
388			$this->convertBase64StringToBigInteger($this->values['dp']),
389			$this->convertBase64StringToBigInteger($this->values['dq']),
390			];
391			$this->coefficient = $this->convertBase64StringToBigInteger($this->values['qi']);
392			}
393			}
394			}
395

Spomky-Labs / jose

Push — master ( e3206a...8d8ce8 )

RSAKey B

Complexity

Size/Duplication

Coupling/Cohesion

Importance

24 Methods

How to fix Complexity

Complex Class

Duplication Side-by-Side

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