ParagonIE_Sodium_Compat::crypto_stream() public WP 1.0
Expand a key and nonce into a keystream of pseudorandom bytes.
{} Это метод класса: ParagonIE_Sodium_Compat{}
Хуков нет.
Возвращает
Строку
. Pseudorandom stream that can be XORed with messages to provide encryption (but not authentication; see Poly1305 or crypto_auth() for that, which is not optional for security)
Использование
$result = ParagonIE_Sodium_Compat::crypto_stream( $len, $nonce, $key );
- $len(число) (обязательный)
- Number of bytes desired
- $nonce(строка) (обязательный)
- Number to be used Once; must be 24 bytes
- $key(строка) (обязательный)
- XSalsa20 key
Код ParagonIE_Sodium_Compat::crypto_stream() ParagonIE Sodium Compat::crypto stream WP 5.7.1
public static function crypto_stream($len, $nonce, $key)
{
/* Type checks: */
ParagonIE_Sodium_Core_Util::declareScalarType($len, 'int', 1);
ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
/* Input validation: */
if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_STREAM_NONCEBYTES) {
throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
}
if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_STREAM_KEYBYTES) {
throw new SodiumException('Argument 3 must be CRYPTO_STREAM_KEYBYTES long.');
}
if (self::useNewSodiumAPI()) {
return sodium_crypto_stream($len, $nonce, $key);
}
if (self::use_fallback('crypto_stream')) {
return (string) call_user_func('\\Sodium\\crypto_stream', $len, $nonce, $key);
}
if (PHP_INT_SIZE === 4) {
return ParagonIE_Sodium_Core32_XSalsa20::xsalsa20($len, $nonce, $key);
}
return ParagonIE_Sodium_Core_XSalsa20::xsalsa20($len, $nonce, $key);
}