@@ -1,6 +1,6 @@ |
||
| 1 | 1 | <?php |
| 2 | 2 | |
| 3 | -declare(strict_types = 1); |
|
| 3 | +declare(strict_types=1); |
|
| 4 | 4 | |
| 5 | 5 | namespace Sop\JWX\JWE\Exception; |
| 6 | 6 | |
@@ -12,44 +12,44 @@ |
||
| 12 | 12 | */ |
| 13 | 13 | interface ContentEncryptionAlgorithm extends EncryptionAlgorithmParameterValue, HeaderParameters |
| 14 | 14 | { |
| 15 | - /** |
|
| 16 | - * Encrypt plaintext. |
|
| 17 | - * |
|
| 18 | - * @param string $plaintext Data to encrypt |
|
| 19 | - * @param string $key Encryption key |
|
| 20 | - * @param string $iv Initialization vector |
|
| 21 | - * @param string $aad Additional authenticated data |
|
| 22 | - * |
|
| 23 | - * @return array Tuple of ciphertext and authentication tag |
|
| 24 | - */ |
|
| 25 | - public function encrypt(string $plaintext, string $key, string $iv, |
|
| 26 | - string $aad): array; |
|
| 15 | + /** |
|
| 16 | + * Encrypt plaintext. |
|
| 17 | + * |
|
| 18 | + * @param string $plaintext Data to encrypt |
|
| 19 | + * @param string $key Encryption key |
|
| 20 | + * @param string $iv Initialization vector |
|
| 21 | + * @param string $aad Additional authenticated data |
|
| 22 | + * |
|
| 23 | + * @return array Tuple of ciphertext and authentication tag |
|
| 24 | + */ |
|
| 25 | + public function encrypt(string $plaintext, string $key, string $iv, |
|
| 26 | + string $aad): array; |
|
| 27 | 27 | |
| 28 | - /** |
|
| 29 | - * Decrypt ciphertext. |
|
| 30 | - * |
|
| 31 | - * @param string $ciphertext Data to decrypt |
|
| 32 | - * @param string $key Encryption key |
|
| 33 | - * @param string $iv Initialization vector |
|
| 34 | - * @param string $aad Additional authenticated data |
|
| 35 | - * @param string $auth_tag Authentication tag to compare |
|
| 36 | - * |
|
| 37 | - * @return string Plaintext |
|
| 38 | - */ |
|
| 39 | - public function decrypt(string $ciphertext, string $key, string $iv, |
|
| 40 | - string $aad, string $auth_tag): string; |
|
| 28 | + /** |
|
| 29 | + * Decrypt ciphertext. |
|
| 30 | + * |
|
| 31 | + * @param string $ciphertext Data to decrypt |
|
| 32 | + * @param string $key Encryption key |
|
| 33 | + * @param string $iv Initialization vector |
|
| 34 | + * @param string $aad Additional authenticated data |
|
| 35 | + * @param string $auth_tag Authentication tag to compare |
|
| 36 | + * |
|
| 37 | + * @return string Plaintext |
|
| 38 | + */ |
|
| 39 | + public function decrypt(string $ciphertext, string $key, string $iv, |
|
| 40 | + string $aad, string $auth_tag): string; |
|
| 41 | 41 | |
| 42 | - /** |
|
| 43 | - * Get the required key size in bytes. |
|
| 44 | - * |
|
| 45 | - * @return int |
|
| 46 | - */ |
|
| 47 | - public function keySize(): int; |
|
| 42 | + /** |
|
| 43 | + * Get the required key size in bytes. |
|
| 44 | + * |
|
| 45 | + * @return int |
|
| 46 | + */ |
|
| 47 | + public function keySize(): int; |
|
| 48 | 48 | |
| 49 | - /** |
|
| 50 | - * Get the required IV size in bytes. |
|
| 51 | - * |
|
| 52 | - * @return int |
|
| 53 | - */ |
|
| 54 | - public function ivSize(): int; |
|
| 49 | + /** |
|
| 50 | + * Get the required IV size in bytes. |
|
| 51 | + * |
|
| 52 | + * @return int |
|
| 53 | + */ |
|
| 54 | + public function ivSize(): int; |
|
| 55 | 55 | } |
@@ -1,6 +1,6 @@ |
||
| 1 | 1 | <?php |
| 2 | 2 | |
| 3 | -declare(strict_types = 1); |
|
| 3 | +declare(strict_types=1); |
|
| 4 | 4 | |
| 5 | 5 | namespace Sop\JWX\JWE; |
| 6 | 6 | |
@@ -22,199 +22,199 @@ |
||
| 22 | 22 | */ |
| 23 | 23 | abstract class PBES2Algorithm extends KeyManagementAlgorithm |
| 24 | 24 | { |
| 25 | - use RandomCEK; |
|
| 26 | - |
|
| 27 | - /** |
|
| 28 | - * Mapping from algorithm name to class name. |
|
| 29 | - * |
|
| 30 | - * @internal |
|
| 31 | - * |
|
| 32 | - * @var array |
|
| 33 | - */ |
|
| 34 | - const MAP_ALGO_TO_CLASS = [ |
|
| 35 | - JWA::ALGO_PBES2_HS256_A128KW => PBES2HS256A128KWAlgorithm::class, |
|
| 36 | - JWA::ALGO_PBES2_HS384_A192KW => PBES2HS384A192KWAlgorithm::class, |
|
| 37 | - JWA::ALGO_PBES2_HS512_A256KW => PBES2HS512A256KWAlgorithm::class, |
|
| 38 | - ]; |
|
| 39 | - |
|
| 40 | - /** |
|
| 41 | - * Password. |
|
| 42 | - * |
|
| 43 | - * @var string |
|
| 44 | - */ |
|
| 45 | - protected $_password; |
|
| 46 | - |
|
| 47 | - /** |
|
| 48 | - * Salt input. |
|
| 49 | - * |
|
| 50 | - * @var string |
|
| 51 | - */ |
|
| 52 | - protected $_saltInput; |
|
| 53 | - |
|
| 54 | - /** |
|
| 55 | - * Iteration count. |
|
| 56 | - * |
|
| 57 | - * @var int |
|
| 58 | - */ |
|
| 59 | - protected $_count; |
|
| 60 | - |
|
| 61 | - /** |
|
| 62 | - * Derived key. |
|
| 63 | - * |
|
| 64 | - * @var string |
|
| 65 | - */ |
|
| 66 | - private $_derivedKey; |
|
| 67 | - |
|
| 68 | - /** |
|
| 69 | - * Constructor. |
|
| 70 | - * |
|
| 71 | - * @param string $password Password |
|
| 72 | - * @param string $salt_input Salt input |
|
| 73 | - * @param int $count Iteration count |
|
| 74 | - */ |
|
| 75 | - public function __construct(string $password, string $salt_input, int $count) |
|
| 76 | - { |
|
| 77 | - $this->_password = $password; |
|
| 78 | - $this->_saltInput = $salt_input; |
|
| 79 | - $this->_count = $count; |
|
| 80 | - } |
|
| 81 | - |
|
| 82 | - /** |
|
| 83 | - * Initialize from JWK. |
|
| 84 | - * |
|
| 85 | - * @param JWK $jwk |
|
| 86 | - * @param Header $header |
|
| 87 | - * |
|
| 88 | - * @throws \UnexpectedValueException |
|
| 89 | - * |
|
| 90 | - * @return self |
|
| 91 | - */ |
|
| 92 | - public static function fromJWK(JWK $jwk, Header $header): KeyManagementAlgorithm |
|
| 93 | - { |
|
| 94 | - $jwk = SymmetricKeyJWK::fromJWK($jwk); |
|
| 95 | - if (!$header->hasPBES2SaltInput()) { |
|
| 96 | - throw new \UnexpectedValueException('No salt input.'); |
|
| 97 | - } |
|
| 98 | - $salt_input = $header->PBES2SaltInput()->saltInput(); |
|
| 99 | - if (!$header->hasPBES2Count()) { |
|
| 100 | - throw new \UnexpectedValueException('No iteration count.'); |
|
| 101 | - } |
|
| 102 | - $count = $header->PBES2Count()->value(); |
|
| 103 | - $alg = JWA::deriveAlgorithmName($header, $jwk); |
|
| 104 | - if (!array_key_exists($alg, self::MAP_ALGO_TO_CLASS)) { |
|
| 105 | - throw new \UnexpectedValueException("Unsupported algorithm '{$alg}'."); |
|
| 106 | - } |
|
| 107 | - $cls = self::MAP_ALGO_TO_CLASS[$alg]; |
|
| 108 | - return new $cls($jwk->key(), $salt_input, $count); |
|
| 109 | - } |
|
| 110 | - |
|
| 111 | - /** |
|
| 112 | - * Initialize from a password with random salt and default iteration count. |
|
| 113 | - * |
|
| 114 | - * @param string $password Password |
|
| 115 | - * @param int $count Optional user defined iteration count |
|
| 116 | - * @param int $salt_bytes Optional user defined salt length |
|
| 117 | - * |
|
| 118 | - * @return self |
|
| 119 | - */ |
|
| 120 | - public static function fromPassword(string $password, int $count = 64000, |
|
| 121 | - int $salt_bytes = 8): self |
|
| 122 | - { |
|
| 123 | - $salt_input = openssl_random_pseudo_bytes($salt_bytes); |
|
| 124 | - return new static($password, $salt_input, $count); |
|
| 125 | - } |
|
| 126 | - |
|
| 127 | - /** |
|
| 128 | - * Get salt input. |
|
| 129 | - * |
|
| 130 | - * @return string |
|
| 131 | - */ |
|
| 132 | - public function saltInput(): string |
|
| 133 | - { |
|
| 134 | - return $this->_saltInput; |
|
| 135 | - } |
|
| 136 | - |
|
| 137 | - /** |
|
| 138 | - * Get computed salt. |
|
| 139 | - * |
|
| 140 | - * @return string |
|
| 141 | - */ |
|
| 142 | - public function salt(): string |
|
| 143 | - { |
|
| 144 | - return PBES2SaltInputParameter::fromString($this->_saltInput)->salt( |
|
| 145 | - AlgorithmParameter::fromAlgorithm($this)); |
|
| 146 | - } |
|
| 147 | - |
|
| 148 | - /** |
|
| 149 | - * Get iteration count. |
|
| 150 | - * |
|
| 151 | - * @return int |
|
| 152 | - */ |
|
| 153 | - public function iterationCount(): int |
|
| 154 | - { |
|
| 155 | - return $this->_count; |
|
| 156 | - } |
|
| 157 | - |
|
| 158 | - /** |
|
| 159 | - * {@inheritdoc} |
|
| 160 | - */ |
|
| 161 | - public function headerParameters(): array |
|
| 162 | - { |
|
| 163 | - return array_merge(parent::headerParameters(), |
|
| 164 | - [AlgorithmParameter::fromAlgorithm($this), |
|
| 165 | - PBES2SaltInputParameter::fromString($this->_saltInput), |
|
| 166 | - new PBES2CountParameter($this->_count), ]); |
|
| 167 | - } |
|
| 168 | - |
|
| 169 | - /** |
|
| 170 | - * Get hash algorithm for hash_pbkdf2. |
|
| 171 | - * |
|
| 172 | - * @return string |
|
| 173 | - */ |
|
| 174 | - abstract protected function _hashAlgo(): string; |
|
| 175 | - |
|
| 176 | - /** |
|
| 177 | - * Get derived key length. |
|
| 178 | - * |
|
| 179 | - * @return int |
|
| 180 | - */ |
|
| 181 | - abstract protected function _keyLength(): int; |
|
| 182 | - |
|
| 183 | - /** |
|
| 184 | - * Get key wrapping algoritym. |
|
| 185 | - * |
|
| 186 | - * @return AESKeyWrapAlgorithm |
|
| 187 | - */ |
|
| 188 | - abstract protected function _kwAlgo(): AESKeyWrapAlgorithm; |
|
| 189 | - |
|
| 190 | - /** |
|
| 191 | - * Get derived key. |
|
| 192 | - * |
|
| 193 | - * @return string |
|
| 194 | - */ |
|
| 195 | - protected function _derivedKey(): string |
|
| 196 | - { |
|
| 197 | - if (!isset($this->_derivedKey)) { |
|
| 198 | - $this->_derivedKey = hash_pbkdf2($this->_hashAlgo(), |
|
| 199 | - $this->_password, $this->salt(), $this->_count, |
|
| 200 | - $this->_keyLength(), true); |
|
| 201 | - } |
|
| 202 | - return $this->_derivedKey; |
|
| 203 | - } |
|
| 204 | - |
|
| 205 | - /** |
|
| 206 | - * {@inheritdoc} |
|
| 207 | - */ |
|
| 208 | - protected function _encryptKey(string $key, Header &$header): string |
|
| 209 | - { |
|
| 210 | - return $this->_kwAlgo()->wrap($key, $this->_derivedKey()); |
|
| 211 | - } |
|
| 212 | - |
|
| 213 | - /** |
|
| 214 | - * {@inheritdoc} |
|
| 215 | - */ |
|
| 216 | - protected function _decryptKey(string $ciphertext, Header $header): string |
|
| 217 | - { |
|
| 218 | - return $this->_kwAlgo()->unwrap($ciphertext, $this->_derivedKey()); |
|
| 219 | - } |
|
| 25 | + use RandomCEK; |
|
| 26 | + |
|
| 27 | + /** |
|
| 28 | + * Mapping from algorithm name to class name. |
|
| 29 | + * |
|
| 30 | + * @internal |
|
| 31 | + * |
|
| 32 | + * @var array |
|
| 33 | + */ |
|
| 34 | + const MAP_ALGO_TO_CLASS = [ |
|
| 35 | + JWA::ALGO_PBES2_HS256_A128KW => PBES2HS256A128KWAlgorithm::class, |
|
| 36 | + JWA::ALGO_PBES2_HS384_A192KW => PBES2HS384A192KWAlgorithm::class, |
|
| 37 | + JWA::ALGO_PBES2_HS512_A256KW => PBES2HS512A256KWAlgorithm::class, |
|
| 38 | + ]; |
|
| 39 | + |
|
| 40 | + /** |
|
| 41 | + * Password. |
|
| 42 | + * |
|
| 43 | + * @var string |
|
| 44 | + */ |
|
| 45 | + protected $_password; |
|
| 46 | + |
|
| 47 | + /** |
|
| 48 | + * Salt input. |
|
| 49 | + * |
|
| 50 | + * @var string |
|
| 51 | + */ |
|
| 52 | + protected $_saltInput; |
|
| 53 | + |
|
| 54 | + /** |
|
| 55 | + * Iteration count. |
|
| 56 | + * |
|
| 57 | + * @var int |
|
| 58 | + */ |
|
| 59 | + protected $_count; |
|
| 60 | + |
|
| 61 | + /** |
|
| 62 | + * Derived key. |
|
| 63 | + * |
|
| 64 | + * @var string |
|
| 65 | + */ |
|
| 66 | + private $_derivedKey; |
|
| 67 | + |
|
| 68 | + /** |
|
| 69 | + * Constructor. |
|
| 70 | + * |
|
| 71 | + * @param string $password Password |
|
| 72 | + * @param string $salt_input Salt input |
|
| 73 | + * @param int $count Iteration count |
|
| 74 | + */ |
|
| 75 | + public function __construct(string $password, string $salt_input, int $count) |
|
| 76 | + { |
|
| 77 | + $this->_password = $password; |
|
| 78 | + $this->_saltInput = $salt_input; |
|
| 79 | + $this->_count = $count; |
|
| 80 | + } |
|
| 81 | + |
|
| 82 | + /** |
|
| 83 | + * Initialize from JWK. |
|
| 84 | + * |
|
| 85 | + * @param JWK $jwk |
|
| 86 | + * @param Header $header |
|
| 87 | + * |
|
| 88 | + * @throws \UnexpectedValueException |
|
| 89 | + * |
|
| 90 | + * @return self |
|
| 91 | + */ |
|
| 92 | + public static function fromJWK(JWK $jwk, Header $header): KeyManagementAlgorithm |
|
| 93 | + { |
|
| 94 | + $jwk = SymmetricKeyJWK::fromJWK($jwk); |
|
| 95 | + if (!$header->hasPBES2SaltInput()) { |
|
| 96 | + throw new \UnexpectedValueException('No salt input.'); |
|
| 97 | + } |
|
| 98 | + $salt_input = $header->PBES2SaltInput()->saltInput(); |
|
| 99 | + if (!$header->hasPBES2Count()) { |
|
| 100 | + throw new \UnexpectedValueException('No iteration count.'); |
|
| 101 | + } |
|
| 102 | + $count = $header->PBES2Count()->value(); |
|
| 103 | + $alg = JWA::deriveAlgorithmName($header, $jwk); |
|
| 104 | + if (!array_key_exists($alg, self::MAP_ALGO_TO_CLASS)) { |
|
| 105 | + throw new \UnexpectedValueException("Unsupported algorithm '{$alg}'."); |
|
| 106 | + } |
|
| 107 | + $cls = self::MAP_ALGO_TO_CLASS[$alg]; |
|
| 108 | + return new $cls($jwk->key(), $salt_input, $count); |
|
| 109 | + } |
|
| 110 | + |
|
| 111 | + /** |
|
| 112 | + * Initialize from a password with random salt and default iteration count. |
|
| 113 | + * |
|
| 114 | + * @param string $password Password |
|
| 115 | + * @param int $count Optional user defined iteration count |
|
| 116 | + * @param int $salt_bytes Optional user defined salt length |
|
| 117 | + * |
|
| 118 | + * @return self |
|
| 119 | + */ |
|
| 120 | + public static function fromPassword(string $password, int $count = 64000, |
|
| 121 | + int $salt_bytes = 8): self |
|
| 122 | + { |
|
| 123 | + $salt_input = openssl_random_pseudo_bytes($salt_bytes); |
|
| 124 | + return new static($password, $salt_input, $count); |
|
| 125 | + } |
|
| 126 | + |
|
| 127 | + /** |
|
| 128 | + * Get salt input. |
|
| 129 | + * |
|
| 130 | + * @return string |
|
| 131 | + */ |
|
| 132 | + public function saltInput(): string |
|
| 133 | + { |
|
| 134 | + return $this->_saltInput; |
|
| 135 | + } |
|
| 136 | + |
|
| 137 | + /** |
|
| 138 | + * Get computed salt. |
|
| 139 | + * |
|
| 140 | + * @return string |
|
| 141 | + */ |
|
| 142 | + public function salt(): string |
|
| 143 | + { |
|
| 144 | + return PBES2SaltInputParameter::fromString($this->_saltInput)->salt( |
|
| 145 | + AlgorithmParameter::fromAlgorithm($this)); |
|
| 146 | + } |
|
| 147 | + |
|
| 148 | + /** |
|
| 149 | + * Get iteration count. |
|
| 150 | + * |
|
| 151 | + * @return int |
|
| 152 | + */ |
|
| 153 | + public function iterationCount(): int |
|
| 154 | + { |
|
| 155 | + return $this->_count; |
|
| 156 | + } |
|
| 157 | + |
|
| 158 | + /** |
|
| 159 | + * {@inheritdoc} |
|
| 160 | + */ |
|
| 161 | + public function headerParameters(): array |
|
| 162 | + { |
|
| 163 | + return array_merge(parent::headerParameters(), |
|
| 164 | + [AlgorithmParameter::fromAlgorithm($this), |
|
| 165 | + PBES2SaltInputParameter::fromString($this->_saltInput), |
|
| 166 | + new PBES2CountParameter($this->_count), ]); |
|
| 167 | + } |
|
| 168 | + |
|
| 169 | + /** |
|
| 170 | + * Get hash algorithm for hash_pbkdf2. |
|
| 171 | + * |
|
| 172 | + * @return string |
|
| 173 | + */ |
|
| 174 | + abstract protected function _hashAlgo(): string; |
|
| 175 | + |
|
| 176 | + /** |
|
| 177 | + * Get derived key length. |
|
| 178 | + * |
|
| 179 | + * @return int |
|
| 180 | + */ |
|
| 181 | + abstract protected function _keyLength(): int; |
|
| 182 | + |
|
| 183 | + /** |
|
| 184 | + * Get key wrapping algoritym. |
|
| 185 | + * |
|
| 186 | + * @return AESKeyWrapAlgorithm |
|
| 187 | + */ |
|
| 188 | + abstract protected function _kwAlgo(): AESKeyWrapAlgorithm; |
|
| 189 | + |
|
| 190 | + /** |
|
| 191 | + * Get derived key. |
|
| 192 | + * |
|
| 193 | + * @return string |
|
| 194 | + */ |
|
| 195 | + protected function _derivedKey(): string |
|
| 196 | + { |
|
| 197 | + if (!isset($this->_derivedKey)) { |
|
| 198 | + $this->_derivedKey = hash_pbkdf2($this->_hashAlgo(), |
|
| 199 | + $this->_password, $this->salt(), $this->_count, |
|
| 200 | + $this->_keyLength(), true); |
|
| 201 | + } |
|
| 202 | + return $this->_derivedKey; |
|
| 203 | + } |
|
| 204 | + |
|
| 205 | + /** |
|
| 206 | + * {@inheritdoc} |
|
| 207 | + */ |
|
| 208 | + protected function _encryptKey(string $key, Header &$header): string |
|
| 209 | + { |
|
| 210 | + return $this->_kwAlgo()->wrap($key, $this->_derivedKey()); |
|
| 211 | + } |
|
| 212 | + |
|
| 213 | + /** |
|
| 214 | + * {@inheritdoc} |
|
| 215 | + */ |
|
| 216 | + protected function _decryptKey(string $ciphertext, Header $header): string |
|
| 217 | + { |
|
| 218 | + return $this->_kwAlgo()->unwrap($ciphertext, $this->_derivedKey()); |
|
| 219 | + } |
|
| 220 | 220 | } |
@@ -1,6 +1,6 @@ |
||
| 1 | 1 | <?php |
| 2 | 2 | |
| 3 | -declare(strict_types = 1); |
|
| 3 | +declare(strict_types=1); |
|
| 4 | 4 | |
| 5 | 5 | namespace Sop\JWX\JWE\KeyAlgorithm; |
| 6 | 6 | |
@@ -15,35 +15,35 @@ |
||
| 15 | 15 | */ |
| 16 | 16 | class PBES2HS256A128KWAlgorithm extends PBES2Algorithm |
| 17 | 17 | { |
| 18 | - /** |
|
| 19 | - * {@inheritdoc} |
|
| 20 | - */ |
|
| 21 | - public function algorithmParamValue(): string |
|
| 22 | - { |
|
| 23 | - return JWA::ALGO_PBES2_HS256_A128KW; |
|
| 24 | - } |
|
| 18 | + /** |
|
| 19 | + * {@inheritdoc} |
|
| 20 | + */ |
|
| 21 | + public function algorithmParamValue(): string |
|
| 22 | + { |
|
| 23 | + return JWA::ALGO_PBES2_HS256_A128KW; |
|
| 24 | + } |
|
| 25 | 25 | |
| 26 | - /** |
|
| 27 | - * {@inheritdoc} |
|
| 28 | - */ |
|
| 29 | - protected function _hashAlgo(): string |
|
| 30 | - { |
|
| 31 | - return 'sha256'; |
|
| 32 | - } |
|
| 26 | + /** |
|
| 27 | + * {@inheritdoc} |
|
| 28 | + */ |
|
| 29 | + protected function _hashAlgo(): string |
|
| 30 | + { |
|
| 31 | + return 'sha256'; |
|
| 32 | + } |
|
| 33 | 33 | |
| 34 | - /** |
|
| 35 | - * {@inheritdoc} |
|
| 36 | - */ |
|
| 37 | - protected function _keyLength(): int |
|
| 38 | - { |
|
| 39 | - return 16; |
|
| 40 | - } |
|
| 34 | + /** |
|
| 35 | + * {@inheritdoc} |
|
| 36 | + */ |
|
| 37 | + protected function _keyLength(): int |
|
| 38 | + { |
|
| 39 | + return 16; |
|
| 40 | + } |
|
| 41 | 41 | |
| 42 | - /** |
|
| 43 | - * {@inheritdoc} |
|
| 44 | - */ |
|
| 45 | - protected function _kwAlgo(): AESKeyWrapAlgorithm |
|
| 46 | - { |
|
| 47 | - return new AESKW128(); |
|
| 48 | - } |
|
| 42 | + /** |
|
| 43 | + * {@inheritdoc} |
|
| 44 | + */ |
|
| 45 | + protected function _kwAlgo(): AESKeyWrapAlgorithm |
|
| 46 | + { |
|
| 47 | + return new AESKW128(); |
|
| 48 | + } |
|
| 49 | 49 | } |
@@ -1,6 +1,6 @@ |
||
| 1 | 1 | <?php |
| 2 | 2 | |
| 3 | -declare(strict_types = 1); |
|
| 3 | +declare(strict_types=1); |
|
| 4 | 4 | |
| 5 | 5 | namespace Sop\JWX\JWE\KeyAlgorithm; |
| 6 | 6 | |
@@ -9,21 +9,21 @@ |
||
| 9 | 9 | */ |
| 10 | 10 | trait RandomCEK |
| 11 | 11 | { |
| 12 | - /** |
|
| 13 | - * Generate a random content encryption key. |
|
| 14 | - * |
|
| 15 | - * @param int $length Key length in bytes |
|
| 16 | - * |
|
| 17 | - * @throws \RuntimeException |
|
| 18 | - * |
|
| 19 | - * @return string |
|
| 20 | - */ |
|
| 21 | - public function cekForEncryption(int $length): string |
|
| 22 | - { |
|
| 23 | - $ret = openssl_random_pseudo_bytes($length); |
|
| 24 | - if (false === $ret) { |
|
| 25 | - throw new \RuntimeException('openssl_random_pseudo_bytes() failed.'); |
|
| 26 | - } |
|
| 27 | - return $ret; |
|
| 28 | - } |
|
| 12 | + /** |
|
| 13 | + * Generate a random content encryption key. |
|
| 14 | + * |
|
| 15 | + * @param int $length Key length in bytes |
|
| 16 | + * |
|
| 17 | + * @throws \RuntimeException |
|
| 18 | + * |
|
| 19 | + * @return string |
|
| 20 | + */ |
|
| 21 | + public function cekForEncryption(int $length): string |
|
| 22 | + { |
|
| 23 | + $ret = openssl_random_pseudo_bytes($length); |
|
| 24 | + if (false === $ret) { |
|
| 25 | + throw new \RuntimeException('openssl_random_pseudo_bytes() failed.'); |
|
| 26 | + } |
|
| 27 | + return $ret; |
|
| 28 | + } |
|
| 29 | 29 | } |
@@ -1,6 +1,6 @@ |
||
| 1 | 1 | <?php |
| 2 | 2 | |
| 3 | -declare(strict_types = 1); |
|
| 3 | +declare(strict_types=1); |
|
| 4 | 4 | |
| 5 | 5 | namespace Sop\JWX\JWE\KeyAlgorithm\Feature; |
| 6 | 6 | |
@@ -15,27 +15,27 @@ |
||
| 15 | 15 | */ |
| 16 | 16 | class A128KWAlgorithm extends AESKWAlgorithm |
| 17 | 17 | { |
| 18 | - /** |
|
| 19 | - * {@inheritdoc} |
|
| 20 | - */ |
|
| 21 | - public function algorithmParamValue(): string |
|
| 22 | - { |
|
| 23 | - return JWA::ALGO_A128KW; |
|
| 24 | - } |
|
| 18 | + /** |
|
| 19 | + * {@inheritdoc} |
|
| 20 | + */ |
|
| 21 | + public function algorithmParamValue(): string |
|
| 22 | + { |
|
| 23 | + return JWA::ALGO_A128KW; |
|
| 24 | + } |
|
| 25 | 25 | |
| 26 | - /** |
|
| 27 | - * {@inheritdoc} |
|
| 28 | - */ |
|
| 29 | - protected function _kekSize(): int |
|
| 30 | - { |
|
| 31 | - return 16; |
|
| 32 | - } |
|
| 26 | + /** |
|
| 27 | + * {@inheritdoc} |
|
| 28 | + */ |
|
| 29 | + protected function _kekSize(): int |
|
| 30 | + { |
|
| 31 | + return 16; |
|
| 32 | + } |
|
| 33 | 33 | |
| 34 | - /** |
|
| 35 | - * {@inheritdoc} |
|
| 36 | - */ |
|
| 37 | - protected function _AESKWAlgo(): AESKeyWrapAlgorithm |
|
| 38 | - { |
|
| 39 | - return new AESKW128(); |
|
| 40 | - } |
|
| 34 | + /** |
|
| 35 | + * {@inheritdoc} |
|
| 36 | + */ |
|
| 37 | + protected function _AESKWAlgo(): AESKeyWrapAlgorithm |
|
| 38 | + { |
|
| 39 | + return new AESKW128(); |
|
| 40 | + } |
|
| 41 | 41 | } |
@@ -1,6 +1,6 @@ |
||
| 1 | 1 | <?php |
| 2 | 2 | |
| 3 | -declare(strict_types = 1); |
|
| 3 | +declare(strict_types=1); |
|
| 4 | 4 | |
| 5 | 5 | namespace Sop\JWX\JWE\KeyAlgorithm; |
| 6 | 6 | |
@@ -20,121 +20,121 @@ |
||
| 20 | 20 | */ |
| 21 | 21 | abstract class AESKWAlgorithm extends KeyManagementAlgorithm |
| 22 | 22 | { |
| 23 | - use RandomCEK; |
|
| 23 | + use RandomCEK; |
|
| 24 | 24 | |
| 25 | - /** |
|
| 26 | - * Mapping from algorithm name to class name. |
|
| 27 | - * |
|
| 28 | - * @internal |
|
| 29 | - * |
|
| 30 | - * @var array |
|
| 31 | - */ |
|
| 32 | - const MAP_ALGO_TO_CLASS = [ |
|
| 33 | - JWA::ALGO_A128KW => A128KWAlgorithm::class, |
|
| 34 | - JWA::ALGO_A192KW => A192KWAlgorithm::class, |
|
| 35 | - JWA::ALGO_A256KW => A256KWAlgorithm::class, |
|
| 36 | - ]; |
|
| 25 | + /** |
|
| 26 | + * Mapping from algorithm name to class name. |
|
| 27 | + * |
|
| 28 | + * @internal |
|
| 29 | + * |
|
| 30 | + * @var array |
|
| 31 | + */ |
|
| 32 | + const MAP_ALGO_TO_CLASS = [ |
|
| 33 | + JWA::ALGO_A128KW => A128KWAlgorithm::class, |
|
| 34 | + JWA::ALGO_A192KW => A192KWAlgorithm::class, |
|
| 35 | + JWA::ALGO_A256KW => A256KWAlgorithm::class, |
|
| 36 | + ]; |
|
| 37 | 37 | |
| 38 | - /** |
|
| 39 | - * Key encryption key. |
|
| 40 | - * |
|
| 41 | - * @var string |
|
| 42 | - */ |
|
| 43 | - protected $_kek; |
|
| 38 | + /** |
|
| 39 | + * Key encryption key. |
|
| 40 | + * |
|
| 41 | + * @var string |
|
| 42 | + */ |
|
| 43 | + protected $_kek; |
|
| 44 | 44 | |
| 45 | - /** |
|
| 46 | - * Key wrapping algorithm. |
|
| 47 | - * |
|
| 48 | - * Lazily initialized. |
|
| 49 | - * |
|
| 50 | - * @var null|AESKeyWrapAlgorithm |
|
| 51 | - */ |
|
| 52 | - protected $_kw; |
|
| 45 | + /** |
|
| 46 | + * Key wrapping algorithm. |
|
| 47 | + * |
|
| 48 | + * Lazily initialized. |
|
| 49 | + * |
|
| 50 | + * @var null|AESKeyWrapAlgorithm |
|
| 51 | + */ |
|
| 52 | + protected $_kw; |
|
| 53 | 53 | |
| 54 | - /** |
|
| 55 | - * Constructor. |
|
| 56 | - * |
|
| 57 | - * @param string $kek Key encryption key |
|
| 58 | - */ |
|
| 59 | - public function __construct(string $kek) |
|
| 60 | - { |
|
| 61 | - if (strlen($kek) !== $this->_kekSize()) { |
|
| 62 | - throw new \LengthException( |
|
| 63 | - 'Key encryption key must be ' . $this->_kekSize() . ' bytes.'); |
|
| 64 | - } |
|
| 65 | - $this->_kek = $kek; |
|
| 66 | - } |
|
| 54 | + /** |
|
| 55 | + * Constructor. |
|
| 56 | + * |
|
| 57 | + * @param string $kek Key encryption key |
|
| 58 | + */ |
|
| 59 | + public function __construct(string $kek) |
|
| 60 | + { |
|
| 61 | + if (strlen($kek) !== $this->_kekSize()) { |
|
| 62 | + throw new \LengthException( |
|
| 63 | + 'Key encryption key must be ' . $this->_kekSize() . ' bytes.'); |
|
| 64 | + } |
|
| 65 | + $this->_kek = $kek; |
|
| 66 | + } |
|
| 67 | 67 | |
| 68 | - /** |
|
| 69 | - * Initialize from JWK. |
|
| 70 | - * |
|
| 71 | - * @param JWK $jwk |
|
| 72 | - * @param Header $header |
|
| 73 | - * |
|
| 74 | - * @throws \UnexpectedValueException |
|
| 75 | - * |
|
| 76 | - * @return self |
|
| 77 | - */ |
|
| 78 | - public static function fromJWK(JWK $jwk, Header $header): KeyManagementAlgorithm |
|
| 79 | - { |
|
| 80 | - $jwk = SymmetricKeyJWK::fromJWK($jwk); |
|
| 81 | - $alg = JWA::deriveAlgorithmName($header, $jwk); |
|
| 82 | - if (!array_key_exists($alg, self::MAP_ALGO_TO_CLASS)) { |
|
| 83 | - throw new \UnexpectedValueException("Unsupported algorithm '{$alg}'."); |
|
| 84 | - } |
|
| 85 | - $cls = self::MAP_ALGO_TO_CLASS[$alg]; |
|
| 86 | - return new $cls($jwk->key()); |
|
| 87 | - } |
|
| 68 | + /** |
|
| 69 | + * Initialize from JWK. |
|
| 70 | + * |
|
| 71 | + * @param JWK $jwk |
|
| 72 | + * @param Header $header |
|
| 73 | + * |
|
| 74 | + * @throws \UnexpectedValueException |
|
| 75 | + * |
|
| 76 | + * @return self |
|
| 77 | + */ |
|
| 78 | + public static function fromJWK(JWK $jwk, Header $header): KeyManagementAlgorithm |
|
| 79 | + { |
|
| 80 | + $jwk = SymmetricKeyJWK::fromJWK($jwk); |
|
| 81 | + $alg = JWA::deriveAlgorithmName($header, $jwk); |
|
| 82 | + if (!array_key_exists($alg, self::MAP_ALGO_TO_CLASS)) { |
|
| 83 | + throw new \UnexpectedValueException("Unsupported algorithm '{$alg}'."); |
|
| 84 | + } |
|
| 85 | + $cls = self::MAP_ALGO_TO_CLASS[$alg]; |
|
| 86 | + return new $cls($jwk->key()); |
|
| 87 | + } |
|
| 88 | 88 | |
| 89 | - /** |
|
| 90 | - * {@inheritdoc} |
|
| 91 | - */ |
|
| 92 | - public function headerParameters(): array |
|
| 93 | - { |
|
| 94 | - return array_merge(parent::headerParameters(), |
|
| 95 | - [AlgorithmParameter::fromAlgorithm($this)]); |
|
| 96 | - } |
|
| 89 | + /** |
|
| 90 | + * {@inheritdoc} |
|
| 91 | + */ |
|
| 92 | + public function headerParameters(): array |
|
| 93 | + { |
|
| 94 | + return array_merge(parent::headerParameters(), |
|
| 95 | + [AlgorithmParameter::fromAlgorithm($this)]); |
|
| 96 | + } |
|
| 97 | 97 | |
| 98 | - /** |
|
| 99 | - * Get the size of the key encryption key in bytes. |
|
| 100 | - * |
|
| 101 | - * @return int |
|
| 102 | - */ |
|
| 103 | - abstract protected function _kekSize(): int; |
|
| 98 | + /** |
|
| 99 | + * Get the size of the key encryption key in bytes. |
|
| 100 | + * |
|
| 101 | + * @return int |
|
| 102 | + */ |
|
| 103 | + abstract protected function _kekSize(): int; |
|
| 104 | 104 | |
| 105 | - /** |
|
| 106 | - * Get key wrapping algorithm instance. |
|
| 107 | - * |
|
| 108 | - * @return AESKeyWrapAlgorithm |
|
| 109 | - */ |
|
| 110 | - abstract protected function _AESKWAlgo(): AESKeyWrapAlgorithm; |
|
| 105 | + /** |
|
| 106 | + * Get key wrapping algorithm instance. |
|
| 107 | + * |
|
| 108 | + * @return AESKeyWrapAlgorithm |
|
| 109 | + */ |
|
| 110 | + abstract protected function _AESKWAlgo(): AESKeyWrapAlgorithm; |
|
| 111 | 111 | |
| 112 | - /** |
|
| 113 | - * Get key wrapping algorithm. |
|
| 114 | - * |
|
| 115 | - * @return AESKeyWrapAlgorithm |
|
| 116 | - */ |
|
| 117 | - protected function _kw(): AESKeyWrapAlgorithm |
|
| 118 | - { |
|
| 119 | - if (!isset($this->_kw)) { |
|
| 120 | - $this->_kw = $this->_AESKWAlgo(); |
|
| 121 | - } |
|
| 122 | - return $this->_kw; |
|
| 123 | - } |
|
| 112 | + /** |
|
| 113 | + * Get key wrapping algorithm. |
|
| 114 | + * |
|
| 115 | + * @return AESKeyWrapAlgorithm |
|
| 116 | + */ |
|
| 117 | + protected function _kw(): AESKeyWrapAlgorithm |
|
| 118 | + { |
|
| 119 | + if (!isset($this->_kw)) { |
|
| 120 | + $this->_kw = $this->_AESKWAlgo(); |
|
| 121 | + } |
|
| 122 | + return $this->_kw; |
|
| 123 | + } |
|
| 124 | 124 | |
| 125 | - /** |
|
| 126 | - * {@inheritdoc} |
|
| 127 | - */ |
|
| 128 | - protected function _encryptKey(string $key, Header &$header): string |
|
| 129 | - { |
|
| 130 | - return $this->_kw()->wrap($key, $this->_kek); |
|
| 131 | - } |
|
| 125 | + /** |
|
| 126 | + * {@inheritdoc} |
|
| 127 | + */ |
|
| 128 | + protected function _encryptKey(string $key, Header &$header): string |
|
| 129 | + { |
|
| 130 | + return $this->_kw()->wrap($key, $this->_kek); |
|
| 131 | + } |
|
| 132 | 132 | |
| 133 | - /** |
|
| 134 | - * {@inheritdoc} |
|
| 135 | - */ |
|
| 136 | - protected function _decryptKey(string $ciphertext, Header $header): string |
|
| 137 | - { |
|
| 138 | - return $this->_kw()->unwrap($ciphertext, $this->_kek); |
|
| 139 | - } |
|
| 133 | + /** |
|
| 134 | + * {@inheritdoc} |
|
| 135 | + */ |
|
| 136 | + protected function _decryptKey(string $ciphertext, Header $header): string |
|
| 137 | + { |
|
| 138 | + return $this->_kw()->unwrap($ciphertext, $this->_kek); |
|
| 139 | + } |
|
| 140 | 140 | } |
@@ -1,6 +1,6 @@ |
||
| 1 | 1 | <?php |
| 2 | 2 | |
| 3 | -declare(strict_types = 1); |
|
| 3 | +declare(strict_types=1); |
|
| 4 | 4 | |
| 5 | 5 | namespace Sop\JWX\JWE\KeyAlgorithm; |
| 6 | 6 | |
@@ -15,27 +15,27 @@ |
||
| 15 | 15 | */ |
| 16 | 16 | class A192KWAlgorithm extends AESKWAlgorithm |
| 17 | 17 | { |
| 18 | - /** |
|
| 19 | - * {@inheritdoc} |
|
| 20 | - */ |
|
| 21 | - public function algorithmParamValue(): string |
|
| 22 | - { |
|
| 23 | - return JWA::ALGO_A192KW; |
|
| 24 | - } |
|
| 18 | + /** |
|
| 19 | + * {@inheritdoc} |
|
| 20 | + */ |
|
| 21 | + public function algorithmParamValue(): string |
|
| 22 | + { |
|
| 23 | + return JWA::ALGO_A192KW; |
|
| 24 | + } |
|
| 25 | 25 | |
| 26 | - /** |
|
| 27 | - * {@inheritdoc} |
|
| 28 | - */ |
|
| 29 | - protected function _kekSize(): int |
|
| 30 | - { |
|
| 31 | - return 24; |
|
| 32 | - } |
|
| 26 | + /** |
|
| 27 | + * {@inheritdoc} |
|
| 28 | + */ |
|
| 29 | + protected function _kekSize(): int |
|
| 30 | + { |
|
| 31 | + return 24; |
|
| 32 | + } |
|
| 33 | 33 | |
| 34 | - /** |
|
| 35 | - * {@inheritdoc} |
|
| 36 | - */ |
|
| 37 | - protected function _AESKWAlgo(): AESKeyWrapAlgorithm |
|
| 38 | - { |
|
| 39 | - return new AESKW192(); |
|
| 40 | - } |
|
| 34 | + /** |
|
| 35 | + * {@inheritdoc} |
|
| 36 | + */ |
|
| 37 | + protected function _AESKWAlgo(): AESKeyWrapAlgorithm |
|
| 38 | + { |
|
| 39 | + return new AESKW192(); |
|
| 40 | + } |
|
| 41 | 41 | } |
@@ -1,6 +1,6 @@ |
||
| 1 | 1 | <?php |
| 2 | 2 | |
| 3 | -declare(strict_types = 1); |
|
| 3 | +declare(strict_types=1); |
|
| 4 | 4 | |
| 5 | 5 | namespace Sop\JWX\JWE\KeyAlgorithm; |
| 6 | 6 | |
@@ -18,101 +18,101 @@ |
||
| 18 | 18 | */ |
| 19 | 19 | class DirectCEKAlgorithm extends KeyManagementAlgorithm |
| 20 | 20 | { |
| 21 | - /** |
|
| 22 | - * Content encryption key. |
|
| 23 | - * |
|
| 24 | - * @var string |
|
| 25 | - */ |
|
| 26 | - protected $_cek; |
|
| 21 | + /** |
|
| 22 | + * Content encryption key. |
|
| 23 | + * |
|
| 24 | + * @var string |
|
| 25 | + */ |
|
| 26 | + protected $_cek; |
|
| 27 | 27 | |
| 28 | - /** |
|
| 29 | - * Constructor. |
|
| 30 | - * |
|
| 31 | - * @param string $cek Content encryption key |
|
| 32 | - */ |
|
| 33 | - public function __construct(string $cek) |
|
| 34 | - { |
|
| 35 | - $this->_cek = $cek; |
|
| 36 | - } |
|
| 28 | + /** |
|
| 29 | + * Constructor. |
|
| 30 | + * |
|
| 31 | + * @param string $cek Content encryption key |
|
| 32 | + */ |
|
| 33 | + public function __construct(string $cek) |
|
| 34 | + { |
|
| 35 | + $this->_cek = $cek; |
|
| 36 | + } |
|
| 37 | 37 | |
| 38 | - /** |
|
| 39 | - * Initialize from JWK. |
|
| 40 | - * |
|
| 41 | - * @param JWK $jwk |
|
| 42 | - * @param Header $header |
|
| 43 | - * |
|
| 44 | - * @throws \UnexpectedValueException |
|
| 45 | - * |
|
| 46 | - * @return self |
|
| 47 | - */ |
|
| 48 | - public static function fromJWK(JWK $jwk, Header $header): KeyManagementAlgorithm |
|
| 49 | - { |
|
| 50 | - $jwk = SymmetricKeyJWK::fromJWK($jwk); |
|
| 51 | - $alg = JWA::deriveAlgorithmName($header); |
|
| 52 | - if (JWA::ALGO_DIR !== $alg) { |
|
| 53 | - throw new \UnexpectedValueException("Invalid algorithm '{$alg}'."); |
|
| 54 | - } |
|
| 55 | - return new self($jwk->key()); |
|
| 56 | - } |
|
| 38 | + /** |
|
| 39 | + * Initialize from JWK. |
|
| 40 | + * |
|
| 41 | + * @param JWK $jwk |
|
| 42 | + * @param Header $header |
|
| 43 | + * |
|
| 44 | + * @throws \UnexpectedValueException |
|
| 45 | + * |
|
| 46 | + * @return self |
|
| 47 | + */ |
|
| 48 | + public static function fromJWK(JWK $jwk, Header $header): KeyManagementAlgorithm |
|
| 49 | + { |
|
| 50 | + $jwk = SymmetricKeyJWK::fromJWK($jwk); |
|
| 51 | + $alg = JWA::deriveAlgorithmName($header); |
|
| 52 | + if (JWA::ALGO_DIR !== $alg) { |
|
| 53 | + throw new \UnexpectedValueException("Invalid algorithm '{$alg}'."); |
|
| 54 | + } |
|
| 55 | + return new self($jwk->key()); |
|
| 56 | + } |
|
| 57 | 57 | |
| 58 | - /** |
|
| 59 | - * Get content encryption key. |
|
| 60 | - * |
|
| 61 | - * @return string |
|
| 62 | - */ |
|
| 63 | - public function cek(): string |
|
| 64 | - { |
|
| 65 | - return $this->_cek; |
|
| 66 | - } |
|
| 58 | + /** |
|
| 59 | + * Get content encryption key. |
|
| 60 | + * |
|
| 61 | + * @return string |
|
| 62 | + */ |
|
| 63 | + public function cek(): string |
|
| 64 | + { |
|
| 65 | + return $this->_cek; |
|
| 66 | + } |
|
| 67 | 67 | |
| 68 | - /** |
|
| 69 | - * {@inheritdoc} |
|
| 70 | - */ |
|
| 71 | - public function cekForEncryption(int $length): string |
|
| 72 | - { |
|
| 73 | - if (strlen($this->_cek) !== $length) { |
|
| 74 | - throw new \UnexpectedValueException('Invalid key length.'); |
|
| 75 | - } |
|
| 76 | - return $this->_cek; |
|
| 77 | - } |
|
| 68 | + /** |
|
| 69 | + * {@inheritdoc} |
|
| 70 | + */ |
|
| 71 | + public function cekForEncryption(int $length): string |
|
| 72 | + { |
|
| 73 | + if (strlen($this->_cek) !== $length) { |
|
| 74 | + throw new \UnexpectedValueException('Invalid key length.'); |
|
| 75 | + } |
|
| 76 | + return $this->_cek; |
|
| 77 | + } |
|
| 78 | 78 | |
| 79 | - /** |
|
| 80 | - * {@inheritdoc} |
|
| 81 | - */ |
|
| 82 | - public function algorithmParamValue(): string |
|
| 83 | - { |
|
| 84 | - return JWA::ALGO_DIR; |
|
| 85 | - } |
|
| 79 | + /** |
|
| 80 | + * {@inheritdoc} |
|
| 81 | + */ |
|
| 82 | + public function algorithmParamValue(): string |
|
| 83 | + { |
|
| 84 | + return JWA::ALGO_DIR; |
|
| 85 | + } |
|
| 86 | 86 | |
| 87 | - /** |
|
| 88 | - * {@inheritdoc} |
|
| 89 | - */ |
|
| 90 | - public function headerParameters(): array |
|
| 91 | - { |
|
| 92 | - return array_merge(parent::headerParameters(), |
|
| 93 | - [AlgorithmParameter::fromAlgorithm($this)]); |
|
| 94 | - } |
|
| 87 | + /** |
|
| 88 | + * {@inheritdoc} |
|
| 89 | + */ |
|
| 90 | + public function headerParameters(): array |
|
| 91 | + { |
|
| 92 | + return array_merge(parent::headerParameters(), |
|
| 93 | + [AlgorithmParameter::fromAlgorithm($this)]); |
|
| 94 | + } |
|
| 95 | 95 | |
| 96 | - /** |
|
| 97 | - * {@inheritdoc} |
|
| 98 | - */ |
|
| 99 | - protected function _encryptKey(string $key, Header &$header): string |
|
| 100 | - { |
|
| 101 | - if ($key !== $this->_cek) { |
|
| 102 | - throw new \LogicException("Content encryption key doesn't match."); |
|
| 103 | - } |
|
| 104 | - return ''; |
|
| 105 | - } |
|
| 96 | + /** |
|
| 97 | + * {@inheritdoc} |
|
| 98 | + */ |
|
| 99 | + protected function _encryptKey(string $key, Header &$header): string |
|
| 100 | + { |
|
| 101 | + if ($key !== $this->_cek) { |
|
| 102 | + throw new \LogicException("Content encryption key doesn't match."); |
|
| 103 | + } |
|
| 104 | + return ''; |
|
| 105 | + } |
|
| 106 | 106 | |
| 107 | - /** |
|
| 108 | - * {@inheritdoc} |
|
| 109 | - */ |
|
| 110 | - protected function _decryptKey(string $ciphertext, Header $header): string |
|
| 111 | - { |
|
| 112 | - if ('' !== $ciphertext) { |
|
| 113 | - throw new \UnexpectedValueException( |
|
| 114 | - 'Encrypted key must be an empty octet sequence.'); |
|
| 115 | - } |
|
| 116 | - return $this->_cek; |
|
| 117 | - } |
|
| 107 | + /** |
|
| 108 | + * {@inheritdoc} |
|
| 109 | + */ |
|
| 110 | + protected function _decryptKey(string $ciphertext, Header $header): string |
|
| 111 | + { |
|
| 112 | + if ('' !== $ciphertext) { |
|
| 113 | + throw new \UnexpectedValueException( |
|
| 114 | + 'Encrypted key must be an empty octet sequence.'); |
|
| 115 | + } |
|
| 116 | + return $this->_cek; |
|
| 117 | + } |
|
| 118 | 118 | } |
@@ -1,6 +1,6 @@ |
||
| 1 | 1 | <?php |
| 2 | 2 | |
| 3 | -declare(strict_types = 1); |
|
| 3 | +declare(strict_types=1); |
|
| 4 | 4 | |
| 5 | 5 | namespace Sop\JWX\JWE\KeyAlgorithm; |
| 6 | 6 | |