WordPoints /
wordpoints
| @@ 176-230 (lines=55) @@ | ||
| 173 | * @throws Error |
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| 174 | * @throws TypeError |
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| 175 | */ |
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| 176 | public static function crypto_aead_chacha20poly1305_decrypt( |
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| 177 | $ciphertext = '', |
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| 178 | $assocData = '', |
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| 179 | $nonce = '', |
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| 180 | $key = '' |
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| 181 | ) { |
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| 182 | /* Type checks: */ |
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| 183 | ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1); |
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| 184 | ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2); |
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| 185 | ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3); |
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| 186 | ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4); |
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| 187 | ||
| 188 | /* Input validation: */ |
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| 189 | if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES) { |
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| 190 | throw new Error('Nonce must be CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES long'); |
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| 191 | } |
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| 192 | if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) { |
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| 193 | throw new Error('Key must be CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES long'); |
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| 194 | } |
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| 195 | if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_AEAD_CHACHA20POLY1305_ABYTES) { |
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| 196 | throw new Error('Message must be at least CRYPTO_AEAD_CHACHA20POLY1305_ABYTES long'); |
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| 197 | } |
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| 198 | ||
| 199 | if (self::isPhp72OrGreater()) { |
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| 200 | return sodium_crypto_aead_chacha20poly1305_decrypt( |
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| 201 | $ciphertext, |
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| 202 | $assocData, |
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| 203 | $nonce, |
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| 204 | $key |
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| 205 | ); |
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| 206 | } |
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| 207 | if (self::use_fallback('crypto_aead_chacha20poly1305_decrypt')) { |
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| 208 | return call_user_func( |
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| 209 | '\\Sodium\\crypto_aead_chacha20poly1305_decrypt', |
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| 210 | $ciphertext, |
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| 211 | $assocData, |
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| 212 | $nonce, |
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| 213 | $key |
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| 214 | ); |
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| 215 | } |
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| 216 | if (PHP_INT_SIZE === 4) { |
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| 217 | return ParagonIE_Sodium_Crypto32::aead_chacha20poly1305_decrypt( |
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| 218 | $ciphertext, |
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| 219 | $assocData, |
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| 220 | $nonce, |
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| 221 | $key |
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| 222 | ); |
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| 223 | } |
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| 224 | return ParagonIE_Sodium_Crypto::aead_chacha20poly1305_decrypt( |
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| 225 | $ciphertext, |
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| 226 | $assocData, |
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| 227 | $nonce, |
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| 228 | $key |
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| 229 | ); |
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| 230 | } |
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| 231 | ||
| 232 | /** |
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| 233 | * Authenticated Encryption with Associated Data |
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| @@ 322-376 (lines=55) @@ | ||
| 319 | * @throws Error |
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| 320 | * @throws TypeError |
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| 321 | */ |
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| 322 | public static function crypto_aead_chacha20poly1305_ietf_decrypt( |
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| 323 | $ciphertext = '', |
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| 324 | $assocData = '', |
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| 325 | $nonce = '', |
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| 326 | $key = '' |
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| 327 | ) { |
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| 328 | /* Type checks: */ |
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| 329 | ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1); |
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| 330 | ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2); |
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| 331 | ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3); |
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| 332 | ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4); |
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| 333 | ||
| 334 | /* Input validation: */ |
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| 335 | if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES) { |
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| 336 | throw new Error('Nonce must be CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES long'); |
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| 337 | } |
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| 338 | if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) { |
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| 339 | throw new Error('Key must be CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES long'); |
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| 340 | } |
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| 341 | if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_AEAD_CHACHA20POLY1305_ABYTES) { |
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| 342 | throw new Error('Message must be at least CRYPTO_AEAD_CHACHA20POLY1305_ABYTES long'); |
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| 343 | } |
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| 344 | ||
| 345 | if (self::isPhp72OrGreater()) { |
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| 346 | return sodium_crypto_aead_chacha20poly1305_ietf_decrypt( |
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| 347 | $ciphertext, |
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| 348 | $assocData, |
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| 349 | $nonce, |
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| 350 | $key |
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| 351 | ); |
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| 352 | } |
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| 353 | if (self::use_fallback('crypto_aead_chacha20poly1305_ietf_decrypt')) { |
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| 354 | return call_user_func( |
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| 355 | '\\Sodium\\crypto_aead_chacha20poly1305_ietf_decrypt', |
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| 356 | $ciphertext, |
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| 357 | $assocData, |
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| 358 | $nonce, |
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| 359 | $key |
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| 360 | ); |
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| 361 | } |
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| 362 | if (PHP_INT_SIZE === 4) { |
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| 363 | return ParagonIE_Sodium_Crypto32::aead_chacha20poly1305_ietf_decrypt( |
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| 364 | $ciphertext, |
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| 365 | $assocData, |
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| 366 | $nonce, |
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| 367 | $key |
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| 368 | ); |
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| 369 | } |
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| 370 | return ParagonIE_Sodium_Crypto::aead_chacha20poly1305_ietf_decrypt( |
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| 371 | $ciphertext, |
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| 372 | $assocData, |
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| 373 | $nonce, |
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| 374 | $key |
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| 375 | ); |
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| 376 | } |
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| 377 | ||
| 378 | /** |
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| 379 | * Authenticated Encryption with Associated Data |
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