public static function ParagonIE_Sodium_Crypto32::aead_xchacha20poly1305_ietf_decrypt in Automatic Updates 7

Same name and namespace in other branches

1. 8 vendor/paragonie/sodium_compat/src/Crypto32.php \ParagonIE_Sodium_Crypto32::aead_xchacha20poly1305_ietf_decrypt()

AEAD Decryption with ChaCha20-Poly1305, IETF mode (96-bit nonce)

@internal Do not use this directly. Use ParagonIE_Sodium_Compat.

Parameters

string $message:

string $ad:

string $nonce:

string $key:

Return value

string

Throws

SodiumException

TypeError

1 call to ParagonIE_Sodium_Crypto32::aead_xchacha20poly1305_ietf_decrypt()

ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_decrypt in vendor/paragonie/sodium_compat/src/Compat.php

Authenticated Encryption with Associated Data: Decryption

File

vendor/paragonie/sodium_compat/src/Crypto32.php, line 329

Class

ParagonIE_Sodium_Crypto32

Class ParagonIE_Sodium_Crypto

Code

public static function aead_xchacha20poly1305_ietf_decrypt($message = '', $ad = '', $nonce = '', $key = '') {
  $subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20(ParagonIE_Sodium_Core32_Util::substr($nonce, 0, 16), $key);
  $nonceLast = "\0\0\0\0" . ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8);
  return self::aead_chacha20poly1305_ietf_decrypt($message, $ad, $nonceLast, $subkey);
}