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abstract class ParagonIE_Sodium_Core32_HSalsa20 in Automatic Updates 8

Same name and namespace in other branches
  1. 7 vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php \ParagonIE_Sodium_Core32_HSalsa20

Class ParagonIE_Sodium_Core32_HSalsa20

Hierarchy

Expanded class hierarchy of ParagonIE_Sodium_Core32_HSalsa20

1 string reference to 'ParagonIE_Sodium_Core32_HSalsa20'
HSalsa20.php in vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php

File

vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php, line 10

View source 
abstract class ParagonIE_Sodium_Core32_HSalsa20 extends ParagonIE_Sodium_Core32_Salsa20 {

  /**
   * Calculate an hsalsa20 hash of a single block
   *
   * HSalsa20 doesn't have a counter and will never be used for more than
   * one block (used to derive a subkey for xsalsa20).
   *
   * @internal You should not use this directly from another application
   *
   * @param string $in
   * @param string $k
   * @param string|null $c
   * @return string
   * @throws SodiumException
   * @throws TypeError
   */
  public static function hsalsa20($in, $k, $c = null) {

    /**
     * @var ParagonIE_Sodium_Core32_Int32 $x0
     * @var ParagonIE_Sodium_Core32_Int32 $x1
     * @var ParagonIE_Sodium_Core32_Int32 $x2
     * @var ParagonIE_Sodium_Core32_Int32 $x3
     * @var ParagonIE_Sodium_Core32_Int32 $x4
     * @var ParagonIE_Sodium_Core32_Int32 $x5
     * @var ParagonIE_Sodium_Core32_Int32 $x6
     * @var ParagonIE_Sodium_Core32_Int32 $x7
     * @var ParagonIE_Sodium_Core32_Int32 $x8
     * @var ParagonIE_Sodium_Core32_Int32 $x9
     * @var ParagonIE_Sodium_Core32_Int32 $x10
     * @var ParagonIE_Sodium_Core32_Int32 $x11
     * @var ParagonIE_Sodium_Core32_Int32 $x12
     * @var ParagonIE_Sodium_Core32_Int32 $x13
     * @var ParagonIE_Sodium_Core32_Int32 $x14
     * @var ParagonIE_Sodium_Core32_Int32 $x15
     * @var ParagonIE_Sodium_Core32_Int32 $j0
     * @var ParagonIE_Sodium_Core32_Int32 $j1
     * @var ParagonIE_Sodium_Core32_Int32 $j2
     * @var ParagonIE_Sodium_Core32_Int32 $j3
     * @var ParagonIE_Sodium_Core32_Int32 $j4
     * @var ParagonIE_Sodium_Core32_Int32 $j5
     * @var ParagonIE_Sodium_Core32_Int32 $j6
     * @var ParagonIE_Sodium_Core32_Int32 $j7
     * @var ParagonIE_Sodium_Core32_Int32 $j8
     * @var ParagonIE_Sodium_Core32_Int32 $j9
     * @var ParagonIE_Sodium_Core32_Int32 $j10
     * @var ParagonIE_Sodium_Core32_Int32 $j11
     * @var ParagonIE_Sodium_Core32_Int32 $j12
     * @var ParagonIE_Sodium_Core32_Int32 $j13
     * @var ParagonIE_Sodium_Core32_Int32 $j14
     * @var ParagonIE_Sodium_Core32_Int32 $j15
     */
    if (self::strlen($k) < 32) {
      throw new RangeException('Key must be 32 bytes long');
    }
    if ($c === null) {
      $x0 = new ParagonIE_Sodium_Core32_Int32(array(
        0x6170,
        0x7865,
      ));
      $x5 = new ParagonIE_Sodium_Core32_Int32(array(
        0x3320,
        0x646e,
      ));
      $x10 = new ParagonIE_Sodium_Core32_Int32(array(
        0x7962,
        0x2d32,
      ));
      $x15 = new ParagonIE_Sodium_Core32_Int32(array(
        0x6b20,
        0x6574,
      ));
    }
    else {
      $x0 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 0, 4));
      $x5 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 4, 4));
      $x10 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 8, 4));
      $x15 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 12, 4));
    }
    $x1 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 0, 4));
    $x2 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 4, 4));
    $x3 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 8, 4));
    $x4 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 12, 4));
    $x6 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 0, 4));
    $x7 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 4, 4));
    $x8 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 8, 4));
    $x9 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 12, 4));
    $x11 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 16, 4));
    $x12 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 20, 4));
    $x13 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 24, 4));
    $x14 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 28, 4));
    for ($i = self::ROUNDS; $i > 0; $i -= 2) {
      $x4 = $x4
        ->xorInt32($x0
        ->addInt32($x12)
        ->rotateLeft(7));
      $x8 = $x8
        ->xorInt32($x4
        ->addInt32($x0)
        ->rotateLeft(9));
      $x12 = $x12
        ->xorInt32($x8
        ->addInt32($x4)
        ->rotateLeft(13));
      $x0 = $x0
        ->xorInt32($x12
        ->addInt32($x8)
        ->rotateLeft(18));
      $x9 = $x9
        ->xorInt32($x5
        ->addInt32($x1)
        ->rotateLeft(7));
      $x13 = $x13
        ->xorInt32($x9
        ->addInt32($x5)
        ->rotateLeft(9));
      $x1 = $x1
        ->xorInt32($x13
        ->addInt32($x9)
        ->rotateLeft(13));
      $x5 = $x5
        ->xorInt32($x1
        ->addInt32($x13)
        ->rotateLeft(18));
      $x14 = $x14
        ->xorInt32($x10
        ->addInt32($x6)
        ->rotateLeft(7));
      $x2 = $x2
        ->xorInt32($x14
        ->addInt32($x10)
        ->rotateLeft(9));
      $x6 = $x6
        ->xorInt32($x2
        ->addInt32($x14)
        ->rotateLeft(13));
      $x10 = $x10
        ->xorInt32($x6
        ->addInt32($x2)
        ->rotateLeft(18));
      $x3 = $x3
        ->xorInt32($x15
        ->addInt32($x11)
        ->rotateLeft(7));
      $x7 = $x7
        ->xorInt32($x3
        ->addInt32($x15)
        ->rotateLeft(9));
      $x11 = $x11
        ->xorInt32($x7
        ->addInt32($x3)
        ->rotateLeft(13));
      $x15 = $x15
        ->xorInt32($x11
        ->addInt32($x7)
        ->rotateLeft(18));
      $x1 = $x1
        ->xorInt32($x0
        ->addInt32($x3)
        ->rotateLeft(7));
      $x2 = $x2
        ->xorInt32($x1
        ->addInt32($x0)
        ->rotateLeft(9));
      $x3 = $x3
        ->xorInt32($x2
        ->addInt32($x1)
        ->rotateLeft(13));
      $x0 = $x0
        ->xorInt32($x3
        ->addInt32($x2)
        ->rotateLeft(18));
      $x6 = $x6
        ->xorInt32($x5
        ->addInt32($x4)
        ->rotateLeft(7));
      $x7 = $x7
        ->xorInt32($x6
        ->addInt32($x5)
        ->rotateLeft(9));
      $x4 = $x4
        ->xorInt32($x7
        ->addInt32($x6)
        ->rotateLeft(13));
      $x5 = $x5
        ->xorInt32($x4
        ->addInt32($x7)
        ->rotateLeft(18));
      $x11 = $x11
        ->xorInt32($x10
        ->addInt32($x9)
        ->rotateLeft(7));
      $x8 = $x8
        ->xorInt32($x11
        ->addInt32($x10)
        ->rotateLeft(9));
      $x9 = $x9
        ->xorInt32($x8
        ->addInt32($x11)
        ->rotateLeft(13));
      $x10 = $x10
        ->xorInt32($x9
        ->addInt32($x8)
        ->rotateLeft(18));
      $x12 = $x12
        ->xorInt32($x15
        ->addInt32($x14)
        ->rotateLeft(7));
      $x13 = $x13
        ->xorInt32($x12
        ->addInt32($x15)
        ->rotateLeft(9));
      $x14 = $x14
        ->xorInt32($x13
        ->addInt32($x12)
        ->rotateLeft(13));
      $x15 = $x15
        ->xorInt32($x14
        ->addInt32($x13)
        ->rotateLeft(18));
    }
    return $x0
      ->toReverseString() . $x5
      ->toReverseString() . $x10
      ->toReverseString() . $x15
      ->toReverseString() . $x6
      ->toReverseString() . $x7
      ->toReverseString() . $x8
      ->toReverseString() . $x9
      ->toReverseString();
  }

}

Members

Namesort descending Modifiers Type Description Overrides
ParagonIE_Sodium_Core32_HSalsa20::hsalsa20 public static function Calculate an hsalsa20 hash of a single block
ParagonIE_Sodium_Core32_Salsa20::core_salsa20 public static function Calculate an salsa20 hash of a single block
ParagonIE_Sodium_Core32_Salsa20::ROUNDS constant
ParagonIE_Sodium_Core32_Salsa20::salsa20 public static function @internal You should not use this directly from another application
ParagonIE_Sodium_Core32_Salsa20::salsa20_xor public static function @internal You should not use this directly from another application
ParagonIE_Sodium_Core32_Salsa20::salsa20_xor_ic public static function @internal You should not use this directly from another application
ParagonIE_Sodium_Core_Util::abs public static function
ParagonIE_Sodium_Core_Util::bin2hex public static function Convert a binary string into a hexadecimal string without cache-timing leaks
ParagonIE_Sodium_Core_Util::bin2hexUpper public static function Convert a binary string into a hexadecimal string without cache-timing leaks, returning uppercase letters (as per RFC 4648)
ParagonIE_Sodium_Core_Util::chrToInt public static function Cache-timing-safe variant of ord()
ParagonIE_Sodium_Core_Util::compare public static function Compares two strings.
ParagonIE_Sodium_Core_Util::declareScalarType public static function If a variable does not match a given type, throw a TypeError.
ParagonIE_Sodium_Core_Util::hashEquals public static function Evaluate whether or not two strings are equal (in constant-time)
ParagonIE_Sodium_Core_Util::hex2bin public static function Convert a hexadecimal string into a binary string without cache-timing leaks
ParagonIE_Sodium_Core_Util::intArrayToString public static function Turn an array of integers into a string
ParagonIE_Sodium_Core_Util::intToChr public static function Cache-timing-safe variant of ord()
ParagonIE_Sodium_Core_Util::isMbStringOverride protected static function Returns whether or not mbstring.func_overload is in effect.
ParagonIE_Sodium_Core_Util::load64_le public static function Load a 8 character substring into an integer
ParagonIE_Sodium_Core_Util::load_3 public static function Load a 3 character substring into an integer
ParagonIE_Sodium_Core_Util::load_4 public static function Load a 4 character substring into an integer
ParagonIE_Sodium_Core_Util::memcmp public static function @internal You should not use this directly from another application
ParagonIE_Sodium_Core_Util::mul public static function Multiply two integers in constant-time
ParagonIE_Sodium_Core_Util::numericTo64BitInteger public static function Convert any arbitrary numbers into two 32-bit integers that represent a 64-bit integer.
ParagonIE_Sodium_Core_Util::store32_le public static function Store a 32-bit integer into a string, treating it as little-endian.
ParagonIE_Sodium_Core_Util::store64_le public static function Stores a 64-bit integer as an string, treating it as little-endian.
ParagonIE_Sodium_Core_Util::store_3 public static function Store a 24-bit integer into a string, treating it as big-endian.
ParagonIE_Sodium_Core_Util::store_4 public static function Store a 32-bit integer into a string, treating it as big-endian.
ParagonIE_Sodium_Core_Util::stringToIntArray public static function Turn a string into an array of integers
ParagonIE_Sodium_Core_Util::strlen public static function Safe string length
ParagonIE_Sodium_Core_Util::substr public static function Safe substring
ParagonIE_Sodium_Core_Util::verify_16 public static function Compare a 16-character byte string in constant time.
ParagonIE_Sodium_Core_Util::verify_32 public static function Compare a 32-character byte string in constant time.
ParagonIE_Sodium_Core_Util::xorStrings public static function Calculate $a ^ $b for two strings.