public static function ParagonIE_Sodium_Core_Salsa20::rotate in Automatic Updates 7

Same name and namespace in other branches

1. 8 vendor/paragonie/sodium_compat/src/Core/Salsa20.php \ParagonIE_Sodium_Core_Salsa20::rotate()

@internal You should not use this directly from another application

Parameters

int $u:

int $c:

Return value

int

2 calls to ParagonIE_Sodium_Core_Salsa20::rotate()

ParagonIE_Sodium_Core_HSalsa20::hsalsa20 in vendor/paragonie/sodium_compat/src/Core/HSalsa20.php

Calculate an hsalsa20 hash of a single block

ParagonIE_Sodium_Core_Salsa20::core_salsa20 in vendor/paragonie/sodium_compat/src/Core/Salsa20.php

Calculate an salsa20 hash of a single block

File

vendor/paragonie/sodium_compat/src/Core/Salsa20.php, line 262

Class

ParagonIE_Sodium_Core_Salsa20

Class ParagonIE_Sodium_Core_Salsa20

Code

public static function rotate($u, $c) {
  $u &= 0xffffffff;
  $c %= 32;
  return (int) (0xffffffff & ($u << $c | $u >> 32 - $c));
}