EncryptedKey::fromKey() - Code Metrics - simplesamlphp/xml-security - Measure and Improve Code Quality continuously with Scrutinizer

EncryptedKey::fromKey() A
last analyzed 2025-06-09 18:03 UTC

↳ Parent: EncryptedKey

Complexity

Conditions	1
Paths	1

Size

Total Lines	37
Code Lines	19

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	19
c	1
b	0
f	0
nc	1
nop	11
dl	0
loc	37
rs	9.6333

How to fix Many Parameters

<?php

declare(strict_types=1);

namespace SimpleSAML\XMLSecurity\XML\xenc;

use DOMElement;
use SimpleSAML\Assert\Assert;
use SimpleSAML\XML\Exception\InvalidDOMElementException;
use SimpleSAML\XML\Exception\TooManyElementsException;
use SimpleSAML\XML\SchemaValidatableElementInterface;
use SimpleSAML\XML\SchemaValidatableElementTrait;
use SimpleSAML\XMLSecurity\Alg\Encryption\EncryptionAlgorithmInterface;
use SimpleSAML\XMLSecurity\Exception\InvalidArgumentException;
use SimpleSAML\XMLSecurity\Key\KeyInterface;
use SimpleSAML\XMLSecurity\XML\ds\KeyInfo;

/**
 * Class representing an encrypted key.
 *
 * @package simplesamlphp/xml-security
 */
final class EncryptedKey extends AbstractEncryptedType implements SchemaValidatableElementInterface
{
    use SchemaValidatableElementTrait;


    /**
     * EncryptedKey constructor.
     *
     * @param \SimpleSAML\XMLSecurity\XML\xenc\CipherData $cipherData The CipherData object of this EncryptedData.
     * @param string|null $id The Id attribute of this object. Optional.
     * @param string|null $type The Type attribute of this object. Optional.
     * @param string|null $mimeType The MimeType attribute of this object. Optional.
     * @param string|null $encoding The Encoding attribute of this object. Optional.
     * @param string|null $recipient The Recipient attribute of this object. Optional.
     * @param \SimpleSAML\XMLSecurity\XML\xenc\CarriedKeyName|null $carriedKeyName
     *   The value of the CarriedKeyName element of this EncryptedData.
     * @param \SimpleSAML\XMLSecurity\XML\xenc\EncryptionMethod|null $encryptionMethod
     *   The EncryptionMethod object of this EncryptedData. Optional.
     * @param \SimpleSAML\XMLSecurity\XML\ds\KeyInfo|null $keyInfo The KeyInfo object of this EncryptedData. Optional.
     * @param \SimpleSAML\XMLSecurity\XML\xenc\ReferenceList|null $referenceList
     *   The ReferenceList object of this EncryptedData. Optional.
     */
    final public function __construct(
        CipherData $cipherData,
        ?string $id = null,
        ?string $type = null,
        ?string $mimeType = null,
        ?string $encoding = null,
        protected ?string $recipient = null,
        protected ?CarriedKeyName $carriedKeyName = null,
        ?EncryptionMethod $encryptionMethod = null,
        ?KeyInfo $keyInfo = null,
        protected ?ReferenceList $referenceList = null,
    ) {
        parent::__construct($cipherData, $id, $type, $mimeType, $encoding, $encryptionMethod, $keyInfo);
    }


    /**
     * Get the value of the CarriedKeyName property.
     *
     * @return \SimpleSAML\XMLSecurity\XML\xenc\CarriedKeyName|null
     */
    public function getCarriedKeyName(): ?CarriedKeyName
    {
        return $this->carriedKeyName;
    }


    /**
     * Get the value of the Recipient attribute.
     *
     * @return string|null
     */
    public function getRecipient(): ?string
    {
        return $this->recipient;
    }


    /**
     * Get the ReferenceList object.
     *
     * @return \SimpleSAML\XMLSecurity\XML\xenc\ReferenceList|null
     */
    public function getReferenceList(): ?ReferenceList
    {
        return $this->referenceList;
    }


    /**
     * @param \SimpleSAML\XMLSecurity\Alg\Encryption\EncryptionAlgorithmInterface $decryptor The decryptor to use
     * to decrypt the key.
     *
     * @return string The decrypted key.
     */
    public function decrypt(EncryptionAlgorithmInterface $decryptor): string
    {
        $cipherValue =  $this->getCipherData()->getCipherValue();
        Assert::notNull(
            $cipherValue,
            'Decrypting keys by reference is not supported.',
            InvalidArgumentException::class,
        );

        Assert::eq(
            $decryptor->getAlgorithmId(),
            $this->getEncryptionMethod()?->getAlgorithm(),
            'Decryptor algorithm does not match algorithm used.',
            InvalidArgumentException::class,
        );

        return $decryptor->decrypt(base64_decode($cipherValue->getContent(), true));
    }


    /**
     * Create an EncryptedKey by encrypting a given key.
     *
     * @param \SimpleSAML\XMLSecurity\Key\KeyInterface $keyToEncrypt The key to encrypt.
     * @param \SimpleSAML\XMLSecurity\Alg\Encryption\EncryptionAlgorithmInterface $encryptor The encryptor to use.
     * @param \SimpleSAML\XMLSecurity\XML\xenc\EncryptionMethod $encryptionMethod
     *   The EncryptionMethod object of this EncryptedData. Optional.
     * @param string|null $id The Id attribute of this object. Optional.
     * @param string|null $type The Type attribute of this object. Optional.
     * @param string|null $mimeType The MimeType attribute of this object. Optional.
     * @param string|null $encoding The Encoding attribute of this object. Optional.
     * @param string|null $recipient The Recipient attribute of this object. Optional.
     * @param \SimpleSAML\XMLSecurity\XML\xenc\CarriedKeyName|null $carriedKeyName
     *   The value of the CarriedKeyName element of this EncryptedData.
     * @param \SimpleSAML\XMLSecurity\XML\ds\KeyInfo|null $keyInfo The KeyInfo object of this EncryptedData. Optional.
     * @param \SimpleSAML\XMLSecurity\XML\xenc\ReferenceList|null $referenceList
     *   The ReferenceList object of this EncryptedData. Optional.
     *
     * @return EncryptedKey The new EncryptedKey object.
     */
    public static function fromKey(
        KeyInterface $keyToEncrypt,
        EncryptionAlgorithmInterface $encryptor,
        EncryptionMethod $encryptionMethod,
        ?string $id = null,
        ?string $type = null,
        ?string $mimeType = null,
        ?string $encoding = null,
        ?string $recipient = null,
        ?CarriedKeyName $carriedKeyName = null,
        ?KeyInfo $keyInfo = null,
        ?ReferenceList $referenceList = null,
    ): EncryptedKey {
        Assert::eq(
            $encryptor->getAlgorithmId(),
            $encryptionMethod->getAlgorithm(),
            'Encryptor algorithm and encryption method do not match.',
            InvalidArgumentException::class,
        );

        return new self(
            new CipherData(
                new CipherValue(
                    base64_encode(
                        $encryptor->encrypt($keyToEncrypt->getMaterial()),
                    ),
                ),
            ),
            $id,
            $type,
            $mimeType,
            $encoding,
            $recipient,
            $carriedKeyName,
            $encryptionMethod,
            $keyInfo,
            $referenceList,
        );
    }


    /**
     * @inheritDoc
     *
     * @throws \SimpleSAML\XML\Exception\InvalidDOMElementException
     *   If the qualified name of the supplied element is wrong
     */
    public static function fromXML(DOMElement $xml): static
    {
        Assert::same($xml->localName, 'EncryptedKey', InvalidDOMElementException::class);
        Assert::same($xml->namespaceURI, EncryptedKey::NS, InvalidDOMElementException::class);

        $cipherData = CipherData::getChildrenOfClass($xml);
        Assert::count(
            $cipherData,
            1,
            'No or more than one CipherData element found in <xenc:EncryptedKey>.',
            TooManyElementsException::class,
        );

        $encryptionMethod = EncryptionMethod::getChildrenOfClass($xml);
        Assert::maxCount(
            $encryptionMethod,
            1,
            'No more than one EncryptionMethod element allowed in <xenc:EncryptedKey>.',
            TooManyElementsException::class,
        );

        $keyInfo = KeyInfo::getChildrenOfClass($xml);
        Assert::maxCount(
            $keyInfo,
            1,
            'No more than one KeyInfo element allowed in <xenc:EncryptedKey>.',
            TooManyElementsException::class,
        );

        $referenceLists = ReferenceList::getChildrenOfClass($xml);
        Assert::maxCount(
            $keyInfo,
            1,
            'Only one ReferenceList element allowed in <xenc:EncryptedKey>.',
            TooManyElementsException::class,
        );

        $carriedKeyNames = CarriedKeyName::getChildrenOfClass($xml);
        Assert::maxCount(
            $carriedKeyNames,
            1,
            'Only one CarriedKeyName element allowed in <xenc:EncryptedKey>.',
            TooManyElementsException::class,
        );

        return new static(
            $cipherData[0],
            self::getOptionalAttribute($xml, 'Id', null),
            self::getOptionalAttribute($xml, 'Type', null),
            self::getOptionalAttribute($xml, 'MimeType', null),
            self::getOptionalAttribute($xml, 'Encoding', null),
            self::getOptionalAttribute($xml, 'Recipient', null),
            array_pop($carriedKeyNames),
            array_pop($encryptionMethod),
            array_pop($keyInfo),
            array_pop($referenceLists),
        );
    }


    /**
     * @inheritDoc
     */
    public function toXML(?DOMElement $parent = null): DOMElement
    {
        $e = parent::toXML($parent);

        if ($this->getRecipient() !== null) {
            $e->setAttribute('Recipient', $this->getRecipient());
        }

        $this->getReferenceList()?->toXML($e);
        $this->getCarriedKeyName()?->toXML($e);

        return $e;
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace SimpleSAML\XMLSecurity\XML\xenc;
6
7			use DOMElement;
8			use SimpleSAML\Assert\Assert;
9			use SimpleSAML\XML\Exception\InvalidDOMElementException;
10			use SimpleSAML\XML\Exception\TooManyElementsException;
11			use SimpleSAML\XML\SchemaValidatableElementInterface;
12			use SimpleSAML\XML\SchemaValidatableElementTrait;
13			use SimpleSAML\XMLSecurity\Alg\Encryption\EncryptionAlgorithmInterface;
14			use SimpleSAML\XMLSecurity\Exception\InvalidArgumentException;
15			use SimpleSAML\XMLSecurity\Key\KeyInterface;
16			use SimpleSAML\XMLSecurity\XML\ds\KeyInfo;
17
18			/**
19			* Class representing an encrypted key.
20			*
21			* @package simplesamlphp/xml-security
22			*/
23			final class EncryptedKey extends AbstractEncryptedType implements SchemaValidatableElementInterface
24			{
25			use SchemaValidatableElementTrait;
			0 ignored issues – show introduced 2024-12-19 20:23 UTC by Report Bug Copy Issue Report The trait `SimpleSAML\XML\SchemaValidatableElementTrait` requires some properties which are not provided by `SimpleSAML\XMLSecurity\XML\xenc\EncryptedKey`: `$message`, `$line` Loading history...
26
27			/**
28			* EncryptedKey constructor.
29			*
30			* @param \SimpleSAML\XMLSecurity\XML\xenc\CipherData $cipherData The CipherData object of this EncryptedData.
31			* @param string\|null $id The Id attribute of this object. Optional.
32			* @param string\|null $type The Type attribute of this object. Optional.
33			* @param string\|null $mimeType The MimeType attribute of this object. Optional.
34			* @param string\|null $encoding The Encoding attribute of this object. Optional.
35			* @param string\|null $recipient The Recipient attribute of this object. Optional.
36			* @param \SimpleSAML\XMLSecurity\XML\xenc\CarriedKeyName\|null $carriedKeyName
37			* The value of the CarriedKeyName element of this EncryptedData.
38			* @param \SimpleSAML\XMLSecurity\XML\xenc\EncryptionMethod\|null $encryptionMethod
39			* The EncryptionMethod object of this EncryptedData. Optional.
40			* @param \SimpleSAML\XMLSecurity\XML\ds\KeyInfo\|null $keyInfo The KeyInfo object of this EncryptedData. Optional.
41			* @param \SimpleSAML\XMLSecurity\XML\xenc\ReferenceList\|null $referenceList
42			* The ReferenceList object of this EncryptedData. Optional.
43			*/
44			final public function __construct(
45			CipherData $cipherData,
46			?string $id = null,
47			?string $type = null,
48			?string $mimeType = null,
49			?string $encoding = null,
50			protected ?string $recipient = null,
51			protected ?CarriedKeyName $carriedKeyName = null,
52			?EncryptionMethod $encryptionMethod = null,
53			?KeyInfo $keyInfo = null,
54			protected ?ReferenceList $referenceList = null,
55			) {
56			parent::__construct($cipherData, $id, $type, $mimeType, $encoding, $encryptionMethod, $keyInfo);
57			}
58
59
60			/**
61			* Get the value of the CarriedKeyName property.
62			*
63			* @return \SimpleSAML\XMLSecurity\XML\xenc\CarriedKeyName\|null
64			*/
65			public function getCarriedKeyName(): ?CarriedKeyName
66			{
67			return $this->carriedKeyName;
68			}
69
70
71			/**
72			* Get the value of the Recipient attribute.
73			*
74			* @return string\|null
75			*/
76			public function getRecipient(): ?string
77			{
78			return $this->recipient;
79			}
80
81
82			/**
83			* Get the ReferenceList object.
84			*
85			* @return \SimpleSAML\XMLSecurity\XML\xenc\ReferenceList\|null
86			*/
87			public function getReferenceList(): ?ReferenceList
88			{
89			return $this->referenceList;
90			}
91
92
93			/**
94			* @param \SimpleSAML\XMLSecurity\Alg\Encryption\EncryptionAlgorithmInterface $decryptor The decryptor to use
95			* to decrypt the key.
96			*
97			* @return string The decrypted key.
98			*/
99			public function decrypt(EncryptionAlgorithmInterface $decryptor): string
100			{
101			$cipherValue = $this->getCipherData()->getCipherValue();
102			Assert::notNull(
103			$cipherValue,
104			'Decrypting keys by reference is not supported.',
105			InvalidArgumentException::class,
106			);
107
108			Assert::eq(
109			$decryptor->getAlgorithmId(),
110			$this->getEncryptionMethod()?->getAlgorithm(),
111			'Decryptor algorithm does not match algorithm used.',
112			InvalidArgumentException::class,
113			);
114
115			return $decryptor->decrypt(base64_decode($cipherValue->getContent(), true));
116			}
117
118
119			/**
120			* Create an EncryptedKey by encrypting a given key.
121			*
122			* @param \SimpleSAML\XMLSecurity\Key\KeyInterface $keyToEncrypt The key to encrypt.
123			* @param \SimpleSAML\XMLSecurity\Alg\Encryption\EncryptionAlgorithmInterface $encryptor The encryptor to use.
124			* @param \SimpleSAML\XMLSecurity\XML\xenc\EncryptionMethod $encryptionMethod
125			* The EncryptionMethod object of this EncryptedData. Optional.
126			* @param string\|null $id The Id attribute of this object. Optional.
127			* @param string\|null $type The Type attribute of this object. Optional.
128			* @param string\|null $mimeType The MimeType attribute of this object. Optional.
129			* @param string\|null $encoding The Encoding attribute of this object. Optional.
130			* @param string\|null $recipient The Recipient attribute of this object. Optional.
131			* @param \SimpleSAML\XMLSecurity\XML\xenc\CarriedKeyName\|null $carriedKeyName
132			* The value of the CarriedKeyName element of this EncryptedData.
133			* @param \SimpleSAML\XMLSecurity\XML\ds\KeyInfo\|null $keyInfo The KeyInfo object of this EncryptedData. Optional.
134			* @param \SimpleSAML\XMLSecurity\XML\xenc\ReferenceList\|null $referenceList
135			* The ReferenceList object of this EncryptedData. Optional.
136			*
137			* @return EncryptedKey The new EncryptedKey object.
138			*/
139			public static function fromKey(
140			KeyInterface $keyToEncrypt,
141			EncryptionAlgorithmInterface $encryptor,
142			EncryptionMethod $encryptionMethod,
143			?string $id = null,
144			?string $type = null,
145			?string $mimeType = null,
146			?string $encoding = null,
147			?string $recipient = null,
148			?CarriedKeyName $carriedKeyName = null,
149			?KeyInfo $keyInfo = null,
150			?ReferenceList $referenceList = null,
151			): EncryptedKey {
152			Assert::eq(
153			$encryptor->getAlgorithmId(),
154			$encryptionMethod->getAlgorithm(),
155			'Encryptor algorithm and encryption method do not match.',
156			InvalidArgumentException::class,
157			);
158
159			return new self(
160			new CipherData(
161			new CipherValue(
162			base64_encode(
163			$encryptor->encrypt($keyToEncrypt->getMaterial()),
164			),
165			),
166			),
167			$id,
168			$type,
169			$mimeType,
170			$encoding,
171			$recipient,
172			$carriedKeyName,
173			$encryptionMethod,
174			$keyInfo,
175			$referenceList,
176			);
177			}
178
179
180			/**
181			* @inheritDoc
182			*
183			* @throws \SimpleSAML\XML\Exception\InvalidDOMElementException
184			* If the qualified name of the supplied element is wrong
185			*/
186			public static function fromXML(DOMElement $xml): static
187			{
188			Assert::same($xml->localName, 'EncryptedKey', InvalidDOMElementException::class);
189			Assert::same($xml->namespaceURI, EncryptedKey::NS, InvalidDOMElementException::class);
190
191			$cipherData = CipherData::getChildrenOfClass($xml);
192			Assert::count(
193			$cipherData,
194			1,
195			'No or more than one CipherData element found in <xenc:EncryptedKey>.',
196			TooManyElementsException::class,
197			);
198
199			$encryptionMethod = EncryptionMethod::getChildrenOfClass($xml);
200			Assert::maxCount(
201			$encryptionMethod,
202			1,
203			'No more than one EncryptionMethod element allowed in <xenc:EncryptedKey>.',
204			TooManyElementsException::class,
205			);
206
207			$keyInfo = KeyInfo::getChildrenOfClass($xml);
208			Assert::maxCount(
209			$keyInfo,
210			1,
211			'No more than one KeyInfo element allowed in <xenc:EncryptedKey>.',
212			TooManyElementsException::class,
213			);
214
215			$referenceLists = ReferenceList::getChildrenOfClass($xml);
216			Assert::maxCount(
217			$keyInfo,
218			1,
219			'Only one ReferenceList element allowed in <xenc:EncryptedKey>.',
220			TooManyElementsException::class,
221			);
222
223			$carriedKeyNames = CarriedKeyName::getChildrenOfClass($xml);
224			Assert::maxCount(
225			$carriedKeyNames,
226			1,
227			'Only one CarriedKeyName element allowed in <xenc:EncryptedKey>.',
228			TooManyElementsException::class,
229			);
230
231			return new static(
232			$cipherData[0],
233			self::getOptionalAttribute($xml, 'Id', null),
234			self::getOptionalAttribute($xml, 'Type', null),
235			self::getOptionalAttribute($xml, 'MimeType', null),
236			self::getOptionalAttribute($xml, 'Encoding', null),
237			self::getOptionalAttribute($xml, 'Recipient', null),
238			array_pop($carriedKeyNames),
239			array_pop($encryptionMethod),
240			array_pop($keyInfo),
241			array_pop($referenceLists),
242			);
243			}
244
245
246			/**
247			* @inheritDoc
248			*/
249			public function toXML(?DOMElement $parent = null): DOMElement
250			{
251			$e = parent::toXML($parent);
252
253			if ($this->getRecipient() !== null) {
254			$e->setAttribute('Recipient', $this->getRecipient());
255			}
256
257			$this->getReferenceList()?->toXML($e);
258			$this->getCarriedKeyName()?->toXML($e);
259
260			return $e;
261			}
262			}
263

simplesamlphp / xml-security

EncryptedKey::fromKey() A last analyzed 2025-06-09 18:03 UTC

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Duplication

Importance

How to fix Many Parameters

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EncryptedKey::fromKey() A
last analyzed 2025-06-09 18:03 UTC