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ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_encrypt() public WP 1.0

Authenticated Encryption with Associated Data

Algorithm:

XChaCha20-Poly1305

This mode uses a 64-bit random nonce with a 64-bit counter. IETF mode uses a 96-bit random nonce with a 32-bit counter.

{} Это метод класса: ParagonIE_Sodium_Compat{}

Хуков нет.

Возвращает

Строку. Ciphertext with a 16-byte Poly1305 message authentication code appended

Использование

$result = ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_encrypt(;
$plaintext(строка) (обязательный)
Message to be encrypted
$assocData(строка) (обязательный)
Authenticated Associated Data (unencrypted)
$nonce(строка) (обязательный)
Number to be used only Once; must be 8 bytes
$key(строка) (обязательный)
Encryption key
$dontFallback(true/false) (обязательный)
Don't fallback to ext/sodium

Код ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_encrypt() WP 5.5.2

<?php
public static function crypto_aead_xchacha20poly1305_ietf_encrypt(
    $plaintext = '',
    $assocData = '',
    $nonce = '',
    $key = '',
    $dontFallback = false
) {
    /* Type checks: */
    ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
    ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
    ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
    ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);

    /* Input validation: */
    if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES) {
        throw new SodiumException('Nonce must be CRYPTO_AEAD_XCHACHA20POLY1305_NPUBBYTES long');
    }
    if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES) {
        throw new SodiumException('Key must be CRYPTO_AEAD_XCHACHA20POLY1305_KEYBYTES long');
    }
    if (self::useNewSodiumAPI() && !$dontFallback) {
        if (is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_encrypt')) {
            return sodium_crypto_aead_xchacha20poly1305_ietf_encrypt(
                $plaintext,
                $assocData,
                $nonce,
                $key
            );
        }
    }

    if (PHP_INT_SIZE === 4) {
        return ParagonIE_Sodium_Crypto32::aead_xchacha20poly1305_ietf_encrypt(
            $plaintext,
            $assocData,
            $nonce,
            $key
        );
    }
    return ParagonIE_Sodium_Crypto::aead_xchacha20poly1305_ietf_encrypt(
        $plaintext,
        $assocData,
        $nonce,
        $key
    );
}