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ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt() public WP 1.0

Authenticated Encryption with Associated Data

Algorithm:

ChaCha20-Poly1305

IETF mode uses a 96-bit random nonce with a 32-bit counter. Regular mode uses a 64-bit random nonce with a 64-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_chacha20poly1305_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

Код ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt() WP 5.5.1

<?php
public static function crypto_aead_chacha20poly1305_ietf_encrypt(
    $plaintext = '',
    $assocData = '',
    $nonce = '',
    $key = ''
) {
    /* Type checks: */
    ParagonIE_Sodium_Core_Util::declareScalarType($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($nonce) !== self::CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES) {
        throw new SodiumException('Nonce must be CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES long');
    }
    if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) {
        throw new SodiumException('Key must be CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES long');
    }

    if (self::useNewSodiumAPI()) {
        return (string) sodium_crypto_aead_chacha20poly1305_ietf_encrypt(
            $plaintext,
            $assocData,
            $nonce,
            $key
        );
    }
    if (self::use_fallback('crypto_aead_chacha20poly1305_ietf_encrypt')) {
        return (string) call_user_func(
            '\\Sodium\\crypto_aead_chacha20poly1305_ietf_encrypt',
            $plaintext,
            $assocData,
            $nonce,
            $key
        );
    }
    if (PHP_INT_SIZE === 4) {
        return ParagonIE_Sodium_Crypto32::aead_chacha20poly1305_ietf_encrypt(
            $plaintext,
            $assocData,
            $nonce,
            $key
        );
    }
    return ParagonIE_Sodium_Crypto::aead_chacha20poly1305_ietf_encrypt(
        $plaintext,
        $assocData,
        $nonce,
        $key
    );
}