WordPoints /
wordpoints
| @@ 349-363 (lines=15) @@ | ||
| 346 | * @param string $key |
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| 347 | * @return string |
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| 348 | */ |
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| 349 | public static function aead_xchacha20poly1305_ietf_encrypt( |
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| 350 | $message = '', |
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| 351 | $ad = '', |
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| 352 | $nonce = '', |
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| 353 | $key = '' |
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| 354 | ) { |
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| 355 | $subkey = ParagonIE_Sodium_Core_HChaCha20::hChaCha20( |
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| 356 | ParagonIE_Sodium_Core_Util::substr($nonce, 0, 16), |
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| 357 | $key |
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| 358 | ); |
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| 359 | $nonceLast = "\x00\x00\x00\x00" . |
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| 360 | ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8); |
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| 361 | ||
| 362 | return self::aead_chacha20poly1305_ietf_encrypt($message, $ad, $nonceLast, $subkey); |
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| 363 | } |
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| 364 | ||
| 365 | /** |
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| 366 | * HMAC-SHA-512-256 (a.k.a. the leftmost 256 bits of HMAC-SHA-512) |
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| @@ 322-336 (lines=15) @@ | ||
| 319 | * @return string |
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| 320 | * @throws Error |
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| 321 | */ |
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| 322 | public static function aead_xchacha20poly1305_ietf_decrypt( |
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| 323 | $message = '', |
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| 324 | $ad = '', |
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| 325 | $nonce = '', |
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| 326 | $key = '' |
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| 327 | ) { |
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| 328 | $subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20( |
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| 329 | ParagonIE_Sodium_Core32_Util::substr($nonce, 0, 16), |
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| 330 | $key |
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| 331 | ); |
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| 332 | $nonceLast = "\x00\x00\x00\x00" . |
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| 333 | ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8); |
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| 334 | ||
| 335 | return self::aead_chacha20poly1305_ietf_decrypt($message, $ad, $nonceLast, $subkey); |
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| 336 | } |
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| 337 | ||
| 338 | /** |
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| 339 | * AEAD Encryption with ChaCha20-Poly1305, IETF mode (96-bit nonce) |
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| @@ 349-363 (lines=15) @@ | ||
| 346 | * @param string $key |
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| 347 | * @return string |
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| 348 | */ |
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| 349 | public static function aead_xchacha20poly1305_ietf_encrypt( |
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| 350 | $message = '', |
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| 351 | $ad = '', |
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| 352 | $nonce = '', |
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| 353 | $key = '' |
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| 354 | ) { |
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| 355 | $subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20( |
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| 356 | ParagonIE_Sodium_Core32_Util::substr($nonce, 0, 16), |
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| 357 | $key |
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| 358 | ); |
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| 359 | $nonceLast = "\x00\x00\x00\x00" . |
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| 360 | ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8); |
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| 361 | ||
| 362 | return self::aead_chacha20poly1305_ietf_encrypt($message, $ad, $nonceLast, $subkey); |
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| 363 | } |
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| 364 | ||
| 365 | /** |
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| 366 | * HMAC-SHA-512-256 (a.k.a. the leftmost 256 bits of HMAC-SHA-512) |
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