public static function ParagonIE_Sodium_Core32_HChaCha20::hChaCha20 in Automatic Updates 8

Same name and namespace in other branches

1. 7 vendor/paragonie/sodium_compat/src/Core32/HChaCha20.php \ParagonIE_Sodium_Core32_HChaCha20::hChaCha20()

Parameters

string $in:

string $key:

string|null $c:

Return value

string

Throws

SodiumException

TypeError

7 calls to ParagonIE_Sodium_Core32_HChaCha20::hChaCha20()

ParagonIE_Sodium_Core32_XChaCha20::stream in vendor/paragonie/sodium_compat/src/Core32/XChaCha20.php

@internal You should not use this directly from another application

ParagonIE_Sodium_Core32_XChaCha20::streamXorIc in vendor/paragonie/sodium_compat/src/Core32/XChaCha20.php

@internal You should not use this directly from another application

ParagonIE_Sodium_Crypto32::aead_xchacha20poly1305_ietf_decrypt in vendor/paragonie/sodium_compat/src/Crypto32.php

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

ParagonIE_Sodium_Crypto32::aead_xchacha20poly1305_ietf_encrypt in vendor/paragonie/sodium_compat/src/Crypto32.php

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

ParagonIE_Sodium_Crypto32::secretbox_xchacha20poly1305 in vendor/paragonie/sodium_compat/src/Crypto32.php

XChaCha20-Poly1305 authenticated symmetric-key encryption.

... See full list

File

vendor/paragonie/sodium_compat/src/Core32/HChaCha20.php, line 20

Class

ParagonIE_Sodium_Core32_HChaCha20

Class ParagonIE_Sodium_Core_HChaCha20

Code

public static function hChaCha20($in = '', $key = '', $c = null) {
  $ctx = array();
  if ($c === null) {
    $ctx[0] = new ParagonIE_Sodium_Core32_Int32(array(
      0x6170,
      0x7865,
    ));
    $ctx[1] = new ParagonIE_Sodium_Core32_Int32(array(
      0x3320,
      0x646e,
    ));
    $ctx[2] = new ParagonIE_Sodium_Core32_Int32(array(
      0x7962,
      0x2d32,
    ));
    $ctx[3] = new ParagonIE_Sodium_Core32_Int32(array(
      0x6b20,
      0x6574,
    ));
  }
  else {
    $ctx[0] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 0, 4));
    $ctx[1] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 4, 4));
    $ctx[2] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 8, 4));
    $ctx[3] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 12, 4));
  }
  $ctx[4] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 0, 4));
  $ctx[5] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 4, 4));
  $ctx[6] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 8, 4));
  $ctx[7] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 12, 4));
  $ctx[8] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 16, 4));
  $ctx[9] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 20, 4));
  $ctx[10] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 24, 4));
  $ctx[11] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 28, 4));
  $ctx[12] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 0, 4));
  $ctx[13] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 4, 4));
  $ctx[14] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 8, 4));
  $ctx[15] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 12, 4));
  return self::hChaCha20Bytes($ctx);
}