RSAKey::populateBigIntegers() - Code Metrics - Inspection of "Merge branch 'master' of https://github.com/Spomky..." - Spomky-Labs/jose - Measure and Improve Code Quality continuously with Scrutinizer

Failed Conditions

Push — master ( f88415...5f7ed3 )

by Florent

created 2016-07-31 18:58 UTC

RSAKey::populateBigIntegers() B

↳ Parent: RSAKey

Complexity

Conditions	4
Paths	3

Size

Total Lines	22
Code Lines	14

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	0	Features	1

Metric	Value
c	2
b	0
f	1
dl	0
loc	22
rs	8.9197
nc	3
cc	4
eloc	14
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;
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 \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;
    }

    /**
     * @param string $data
     *
     * @throws \Exception
     * @throws \FG\ASN1\Exception\ParserException
     *
     * @return array
     */
    private function loadPEM($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->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 = array_key_exists('p', $this->values) ? new Integer($this->fromBase64ToInteger($this->values['p'])) : new Integer(0);
        $q = array_key_exists('q', $this->values) ? new Integer($this->fromBase64ToInteger($this->values['q'])) : new Integer(0);
        $dp = array_key_exists('dp', $this->values) ? new Integer($this->fromBase64ToInteger($this->values['dp'])) : new Integer(0);
        $dq = array_key_exists('dq', $this->values) ? new Integer($this->fromBase64ToInteger($this->values['dq'])) : new Integer(0);
        $qi = array_key_exists('qi', $this->values) ? new Integer($this->fromBase64ToInteger($this->values['qi'])) : new Integer(0);

        $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);
    }

    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']);

            if (array_key_exists('p', $this->values) && array_key_exists('q', $this->values)) {
                $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']);
            }
        }
    }

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


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 \Jose\KeyConverter\RSAKey $private
175			*
176			* @return \Jose\KeyConverter\RSAKey
177			*/
178			public static function toPublic(RSAKey $private)
179			{
180			$data = $private->toArray();
181			$keys = ['p', 'd', 'q', 'dp', 'dq', 'qi'];
182			foreach ($keys as $key) {
183			if (array_key_exists($key, $data)) {
184			unset($data[$key]);
185			}
186			}
187
188			return new self($data);
189			}
190
191			public function __toString()
192			{
193			return $this->toPEM();
194			}
195
196			/**
197			* @return array
198			*/
199			public function toArray()
200			{
201			return $this->values;
202			}
203
204			/**
205			* @return string
206			*/
207			public function toDER()
208			{
209			return $this->getBinary();
210			}
211
212			/**
213			* @return string
214			*/
215			public function toPEM()
216			{
217			$result = '-----BEGIN '.($this->isPrivate() ? 'RSA PRIVATE' : 'PUBLIC').' KEY-----'.PHP_EOL;
218			$result .= chunk_split(base64_encode($this->getBinary()), 64, PHP_EOL);
219			$result .= '-----END '.($this->isPrivate() ? 'RSA PRIVATE' : 'PUBLIC').' KEY-----'.PHP_EOL;
220
221			return $result;
222			}
223
224			/**
225			* @param string $data
226			*
227			* @throws \Exception
228			* @throws \FG\ASN1\Exception\ParserException
229			*
230			* @return array
231			*/
232			private function loadPEM($data)
233			{
234			$res = openssl_pkey_get_private($data);
235			if (false === $res) {
236			$res = openssl_pkey_get_public($data);
237			}
238			Assertion::false(false === $res, 'Unable to load the key');
239
240			$details = openssl_pkey_get_details($res);
241			Assertion::keyExists($details, 'rsa', 'Unable to load the key');
242
243			$this->values['kty'] = 'RSA';
244			$keys = [
245			'n' => 'n',
246			'e' => 'e',
247			'd' => 'd',
248			'p' => 'p',
249			'q' => 'q',
250			'dp' => 'dmp1',
251			'dq' => 'dmq1',
252			'qi' => 'iqmp',
253			];
254			foreach ($details['rsa'] as $key => $value) {
255			if (in_array($key, $keys)) {
256			$value = Base64Url::encode($value);
257			$this->values[array_search($key, $keys)] = $value;
258			}
259			}
260			}
261
262			/**
263			* @param array $jwk
264			*/
265			private function loadJWK(array $jwk)
266			{
267			Assertion::keyExists($jwk, 'kty', 'The key parameter "kty" is missing.');
268			Assertion::eq($jwk['kty'], 'RSA', 'The JWK is not a RSA key');
269
270			$this->values = $jwk;
271			if (array_key_exists('d', $jwk)) {
272			$this->populateCRT();
273			$this->initPrivateKey();
274			} else {
275			$this->initPublicKey();
276			}
277			}
278
279			/**
280			* This method adds Chinese Remainder Theorem (CRT) parameters if primes 'p' and 'q' are available.
281			*/
282			private function populateCRT()
283			{
284			if (!array_key_exists('p', $this->values) && !array_key_exists('q', $this->values)) {
285			return;
286			}
287			if (array_key_exists('dp', $this->values) && array_key_exists('dq', $this->values) && array_key_exists('qi', $this->values)) {
288			return;
289			}
290
291			$one = BigInteger::createFromDecimal(1);
292			$d = BigInteger::createFromBinaryString(Base64Url::decode($this->values['d']));
293			$p = BigInteger::createFromBinaryString(Base64Url::decode($this->values['p']));
294			$q = BigInteger::createFromBinaryString(Base64Url::decode($this->values['q']));
295
296			$this->values['dp'] = Base64Url::encode($d->mod($p->subtract($one))->toBytes());
297			$this->values['dq'] = Base64Url::encode($d->mod($q->subtract($one))->toBytes());
298			$this->values['qi'] = Base64Url::encode($q->modInverse($p)->toBytes());
299			}
300
301			/**
302			* @throws \Exception
303			*/
304			private function initPublicKey()
305			{
306			$oid_sequence = new Sequence();
307			$oid_sequence->addChild(new ObjectIdentifier('1.2.840.113549.1.1.1'));
308			$oid_sequence->addChild(new NullObject());
309			$this->addChild($oid_sequence);
310
311			$n = new Integer($this->fromBase64ToInteger($this->values['n']));
312			$e = new Integer($this->fromBase64ToInteger($this->values['e']));
313
314			$key_sequence = new Sequence();
315			$key_sequence->addChild($n);
316			$key_sequence->addChild($e);
317			$key_bit_string = new BitString(bin2hex($key_sequence->getBinary()));
318			$this->addChild($key_bit_string);
319			}
320
321			private function initPrivateKey()
322			{
323			$this->addChild(new Integer(0));
324
325			$oid_sequence = new Sequence();
326			$oid_sequence->addChild(new ObjectIdentifier('1.2.840.113549.1.1.1'));
327			$oid_sequence->addChild(new NullObject());
328			$this->addChild($oid_sequence);
329
330			$v = new Integer(0);
331			$n = new Integer($this->fromBase64ToInteger($this->values['n']));
332			$e = new Integer($this->fromBase64ToInteger($this->values['e']));
333			$d = new Integer($this->fromBase64ToInteger($this->values['d']));
334			$p = array_key_exists('p', $this->values) ? new Integer($this->fromBase64ToInteger($this->values['p'])) : new Integer(0);
335			$q = array_key_exists('q', $this->values) ? new Integer($this->fromBase64ToInteger($this->values['q'])) : new Integer(0);
336			$dp = array_key_exists('dp', $this->values) ? new Integer($this->fromBase64ToInteger($this->values['dp'])) : new Integer(0);
337			$dq = array_key_exists('dq', $this->values) ? new Integer($this->fromBase64ToInteger($this->values['dq'])) : new Integer(0);
338			$qi = array_key_exists('qi', $this->values) ? new Integer($this->fromBase64ToInteger($this->values['qi'])) : new Integer(0);
339
340			$key_sequence = new Sequence();
341			$key_sequence->addChild($v);
342			$key_sequence->addChild($n);
343			$key_sequence->addChild($e);
344			$key_sequence->addChild($d);
345			$key_sequence->addChild($p);
346			$key_sequence->addChild($q);
347			$key_sequence->addChild($dp);
348			$key_sequence->addChild($dq);
349			$key_sequence->addChild($qi);
350			$key_octet_string = new OctetString(bin2hex($key_sequence->getBinary()));
351			$this->addChild($key_octet_string);
352			}
353
354			/**
355			* @param string $value
356			*
357			* @return string
358			*/
359			private function fromBase64ToInteger($value)
360			{
361			return gmp_strval(gmp_init(current(unpack('H*', Base64Url::decode($value))), 16), 10);
362			}
363
364			private function populateBigIntegers()
365			{
366			$this->modulus = $this->convertBase64StringToBigInteger($this->values['n']);
367			$this->modulus_length = mb_strlen($this->getModulus()->toBytes(), '8bit');
368			$this->public_exponent = $this->convertBase64StringToBigInteger($this->values['e']);
369
370			if (true === $this->isPrivate()) {
371			$this->private_exponent = $this->convertBase64StringToBigInteger($this->values['d']);
372
373			if (array_key_exists('p', $this->values) && array_key_exists('q', $this->values)) {
374			$this->primes = [
375			$this->convertBase64StringToBigInteger($this->values['p']),
376			$this->convertBase64StringToBigInteger($this->values['q']),
377			];
378			$this->exponents = [
379			$this->convertBase64StringToBigInteger($this->values['dp']),
380			$this->convertBase64StringToBigInteger($this->values['dq']),
381			];
382			$this->coefficient = $this->convertBase64StringToBigInteger($this->values['qi']);
383			}
384			}
385			}
386
387			/**
388			* @param string $value
389			*
390			* @return \Jose\Util\BigInteger
391			*/
392			private function convertBase64StringToBigInteger($value)
393			{
394			return BigInteger::createFromBinaryString(Base64Url::decode($value));
395			}
396			}
397

Spomky-Labs / jose

Push — master ( f88415...5f7ed3 )

RSAKey::populateBigIntegers() B

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