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<?php |
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if (class_exists('ParagonIE_Sodium_Core_BLAKE2b', false)) { |
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return; |
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} |
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/** |
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* Class ParagonIE_Sodium_Core_BLAKE2b |
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* |
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* Based on the work of Devi Mandiri in devi/salt. |
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*/ |
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abstract class ParagonIE_Sodium_Core32_BLAKE2b extends ParagonIE_Sodium_Core_Util |
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{ |
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/** |
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* @var SplFixedArray |
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*/ |
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public static $iv; |
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/** |
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* @var array<int, array<int, int>> |
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*/ |
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public static $sigma = array( |
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array( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15), |
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array( 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3), |
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array( 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4), |
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array( 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8), |
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array( 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13), |
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array( 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9), |
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array( 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11), |
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array( 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10), |
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array( 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5), |
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array( 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0), |
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array( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15), |
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array( 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3) |
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); |
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const BLOCKBYTES = 128; |
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const OUTBYTES = 64; |
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const KEYBYTES = 64; |
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/** |
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* Turn two 32-bit integers into a fixed array representing a 64-bit integer. |
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* |
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* @internal You should not use this directly from another application |
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* |
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* @param int $high |
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* @param int $low |
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* @return ParagonIE_Sodium_Core32_Int64 |
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* @throws SodiumException |
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* @throws TypeError |
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*/ |
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public static function new64($high, $low) |
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{ |
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return ParagonIE_Sodium_Core32_Int64::fromInts($low, $high); |
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} |
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/** |
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* Convert an arbitrary number into an SplFixedArray of two 32-bit integers |
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* that represents a 64-bit integer. |
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* |
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* @internal You should not use this directly from another application |
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* |
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* @param int $num |
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* @return ParagonIE_Sodium_Core32_Int64 |
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* @throws SodiumException |
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* @throws TypeError |
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*/ |
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protected static function to64($num) |
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{ |
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list($hi, $lo) = self::numericTo64BitInteger($num); |
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return self::new64($hi, $lo); |
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} |
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/** |
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* Adds two 64-bit integers together, returning their sum as a SplFixedArray |
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* containing two 32-bit integers (representing a 64-bit integer). |
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* |
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* @internal You should not use this directly from another application |
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* |
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* @param ParagonIE_Sodium_Core32_Int64 $x |
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* @param ParagonIE_Sodium_Core32_Int64 $y |
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* @return ParagonIE_Sodium_Core32_Int64 |
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*/ |
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protected static function add64($x, $y) |
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{ |
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return $x->addInt64($y); |
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} |
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/** |
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* @internal You should not use this directly from another application |
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* |
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* @param ParagonIE_Sodium_Core32_Int64 $x |
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* @param ParagonIE_Sodium_Core32_Int64 $y |
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* @param ParagonIE_Sodium_Core32_Int64 $z |
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* @return ParagonIE_Sodium_Core32_Int64 |
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*/ |
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public static function add364($x, $y, $z) |
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{ |
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return $x->addInt64($y)->addInt64($z); |
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} |
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/** |
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* @internal You should not use this directly from another application |
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* |
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* @param ParagonIE_Sodium_Core32_Int64 $x |
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* @param ParagonIE_Sodium_Core32_Int64 $y |
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* @return ParagonIE_Sodium_Core32_Int64 |
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* @throws TypeError |
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*/ |
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public static function xor64(ParagonIE_Sodium_Core32_Int64 $x, ParagonIE_Sodium_Core32_Int64 $y) |
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{ |
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return $x->xorInt64($y); |
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} |
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/** |
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* @internal You should not use this directly from another application |
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* |
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* @param ParagonIE_Sodium_Core32_Int64 $x |
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* @param int $c |
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* @return ParagonIE_Sodium_Core32_Int64 |
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* @throws SodiumException |
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* @throws TypeError |
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*/ |
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public static function rotr64(ParagonIE_Sodium_Core32_Int64 $x, $c) |
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{ |
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return $x->rotateRight($c); |
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} |
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/** |
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* @internal You should not use this directly from another application |
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* |
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* @param SplFixedArray $x |
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* @param int $i |
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* @return ParagonIE_Sodium_Core32_Int64 |
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* @throws SodiumException |
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* @throws TypeError |
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*/ |
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public static function load64($x, $i) |
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{ |
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/** @var int $l */ |
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$l = (int) ($x[$i]) |
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| ((int) ($x[$i+1]) << 8) |
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| ((int) ($x[$i+2]) << 16) |
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| ((int) ($x[$i+3]) << 24); |
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/** @var int $h */ |
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$h = (int) ($x[$i+4]) |
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| ((int) ($x[$i+5]) << 8) |
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| ((int) ($x[$i+6]) << 16) |
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| ((int) ($x[$i+7]) << 24); |
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return self::new64($h, $l); |
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} |
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/** |
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* @internal You should not use this directly from another application |
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* |
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* @param SplFixedArray $x |
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* @param int $i |
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* @param ParagonIE_Sodium_Core32_Int64 $u |
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* @return void |
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* @throws TypeError |
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* @psalm-suppress MixedArgument |
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* @psalm-suppress MixedAssignment |
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* @psalm-suppress MixedArrayAccess |
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* @psalm-suppress MixedArrayAssignment |
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* @psalm-suppress MixedArrayOffset |
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*/ |
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public static function store64(SplFixedArray $x, $i, ParagonIE_Sodium_Core32_Int64 $u) |
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{ |
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$v = clone $u; |
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$maxLength = $x->getSize() - 1; |
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for ($j = 0; $j < 8; ++$j) { |
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$k = 3 - ($j >> 1); |
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$x[$i] = $v->limbs[$k] & 0xff; |
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if (++$i > $maxLength) { |
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return; |
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} |
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$v->limbs[$k] >>= 8; |
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} |
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} |
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/** |
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* This just sets the $iv static variable. |
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* |
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* @internal You should not use this directly from another application |
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* |
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* @return void |
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* @throws SodiumException |
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* @throws TypeError |
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*/ |
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public static function pseudoConstructor() |
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{ |
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static $called = false; |
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if ($called) { |
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return; |
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} |
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self::$iv = new SplFixedArray(8); |
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self::$iv[0] = self::new64(0x6a09e667, 0xf3bcc908); |
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self::$iv[1] = self::new64(0xbb67ae85, 0x84caa73b); |
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self::$iv[2] = self::new64(0x3c6ef372, 0xfe94f82b); |
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self::$iv[3] = self::new64(0xa54ff53a, 0x5f1d36f1); |
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self::$iv[4] = self::new64(0x510e527f, 0xade682d1); |
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self::$iv[5] = self::new64(0x9b05688c, 0x2b3e6c1f); |
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self::$iv[6] = self::new64(0x1f83d9ab, 0xfb41bd6b); |
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self::$iv[7] = self::new64(0x5be0cd19, 0x137e2179); |
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$called = true; |
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} |
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/** |
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* Returns a fresh BLAKE2 context. |
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* |
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* @internal You should not use this directly from another application |
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* |
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* @return SplFixedArray |
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* @throws TypeError |
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* @psalm-suppress MixedArgument |
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* @psalm-suppress MixedAssignment |
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* @psalm-suppress MixedArrayAccess |
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* @psalm-suppress MixedArrayAssignment |
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* @psalm-suppress MixedArrayOffset |
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* @throws SodiumException |
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* @throws TypeError |
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*/ |
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protected static function context() |
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{ |
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$ctx = new SplFixedArray(6); |
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$ctx[0] = new SplFixedArray(8); // h |
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$ctx[1] = new SplFixedArray(2); // t |
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$ctx[2] = new SplFixedArray(2); // f |
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$ctx[3] = new SplFixedArray(256); // buf |
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$ctx[4] = 0; // buflen |
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$ctx[5] = 0; // last_node (uint8_t) |
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for ($i = 8; $i--;) { |
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$ctx[0][$i] = self::$iv[$i]; |
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} |
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for ($i = 256; $i--;) { |
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$ctx[3][$i] = 0; |
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} |
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$zero = self::new64(0, 0); |
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$ctx[1][0] = $zero; |
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$ctx[1][1] = $zero; |
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$ctx[2][0] = $zero; |
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$ctx[2][1] = $zero; |
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return $ctx; |
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} |
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/** |
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* @internal You should not use this directly from another application |
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* |
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* @param SplFixedArray $ctx |
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* @param SplFixedArray $buf |
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* @return void |
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* @throws SodiumException |
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* @throws TypeError |
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* @psalm-suppress MixedArgument |
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* @psalm-suppress MixedArrayAccess |
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* @psalm-suppress MixedArrayAssignment |
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* @psalm-suppress MixedAssignment |
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*/ |
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protected static function compress(SplFixedArray $ctx, SplFixedArray $buf) |
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{ |
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$m = new SplFixedArray(16); |
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$v = new SplFixedArray(16); |
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for ($i = 16; $i--;) { |
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$m[$i] = self::load64($buf, $i << 3); |
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} |
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for ($i = 8; $i--;) { |
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$v[$i] = $ctx[0][$i]; |
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} |
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$v[ 8] = self::$iv[0]; |
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$v[ 9] = self::$iv[1]; |
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$v[10] = self::$iv[2]; |
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$v[11] = self::$iv[3]; |
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280 |
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$v[12] = self::xor64($ctx[1][0], self::$iv[4]); |
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$v[13] = self::xor64($ctx[1][1], self::$iv[5]); |
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$v[14] = self::xor64($ctx[2][0], self::$iv[6]); |
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$v[15] = self::xor64($ctx[2][1], self::$iv[7]); |
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285 |
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for ($r = 0; $r < 12; ++$r) { |
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$v = self::G($r, 0, 0, 4, 8, 12, $v, $m); |
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$v = self::G($r, 1, 1, 5, 9, 13, $v, $m); |
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$v = self::G($r, 2, 2, 6, 10, 14, $v, $m); |
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$v = self::G($r, 3, 3, 7, 11, 15, $v, $m); |
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$v = self::G($r, 4, 0, 5, 10, 15, $v, $m); |
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$v = self::G($r, 5, 1, 6, 11, 12, $v, $m); |
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$v = self::G($r, 6, 2, 7, 8, 13, $v, $m); |
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$v = self::G($r, 7, 3, 4, 9, 14, $v, $m); |
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} |
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296 |
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for ($i = 8; $i--;) { |
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$ctx[0][$i] = self::xor64( |
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$ctx[0][$i], self::xor64($v[$i], $v[$i+8]) |
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); |
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} |
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} |
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303 |
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304 |
/** |
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* @internal You should not use this directly from another application |
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306 |
* |
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307 |
* @param int $r |
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* @param int $i |
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* @param int $a |
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* @param int $b |
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* @param int $c |
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* @param int $d |
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313 |
* @param SplFixedArray $v |
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314 |
* @param SplFixedArray $m |
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* @return SplFixedArray |
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316 |
* @throws SodiumException |
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317 |
* @throws TypeError |
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318 |
* @psalm-suppress MixedArgument |
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* @psalm-suppress MixedArrayOffset |
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*/ |
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public static function G($r, $i, $a, $b, $c, $d, SplFixedArray $v, SplFixedArray $m) |
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{ |
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$v[$a] = self::add364($v[$a], $v[$b], $m[self::$sigma[$r][$i << 1]]); |
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$v[$d] = self::rotr64(self::xor64($v[$d], $v[$a]), 32); |
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$v[$c] = self::add64($v[$c], $v[$d]); |
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$v[$b] = self::rotr64(self::xor64($v[$b], $v[$c]), 24); |
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$v[$a] = self::add364($v[$a], $v[$b], $m[self::$sigma[$r][($i << 1) + 1]]); |
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$v[$d] = self::rotr64(self::xor64($v[$d], $v[$a]), 16); |
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$v[$c] = self::add64($v[$c], $v[$d]); |
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$v[$b] = self::rotr64(self::xor64($v[$b], $v[$c]), 63); |
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return $v; |
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332 |
} |
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333 |
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334 |
/** |
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335 |
* @internal You should not use this directly from another application |
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336 |
* |
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337 |
* @param SplFixedArray $ctx |
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338 |
* @param int $inc |
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339 |
* @return void |
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340 |
* @throws SodiumException |
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341 |
* @throws TypeError |
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342 |
* @psalm-suppress MixedArgument |
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343 |
* @psalm-suppress MixedArrayAccess |
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344 |
* @psalm-suppress MixedArrayAssignment |
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345 |
*/ |
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346 |
public static function increment_counter($ctx, $inc) |
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347 |
{ |
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348 |
if ($inc < 0) { |
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349 |
throw new SodiumException('Increasing by a negative number makes no sense.'); |
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350 |
} |
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351 |
$t = self::to64($inc); |
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352 |
# S->t is $ctx[1] in our implementation |
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353 |
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354 |
# S->t[0] = ( uint64_t )( t >> 0 ); |
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355 |
$ctx[1][0] = self::add64($ctx[1][0], $t); |
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356 |
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357 |
# S->t[1] += ( S->t[0] < inc ); |
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358 |
if (!($ctx[1][0] instanceof ParagonIE_Sodium_Core32_Int64)) { |
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|
359 |
throw new TypeError('Not an int64'); |
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|
360 |
} |
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|
361 |
/** @var ParagonIE_Sodium_Core32_Int64 $c*/ |
|
|
362 |
$c = $ctx[1][0]; |
|
|
363 |
if ($c->isLessThanInt($inc)) { |
|
|
364 |
$ctx[1][1] = self::add64($ctx[1][1], self::to64(1)); |
|
|
365 |
} |
|
|
366 |
} |
|
|
367 |
|
|
|
368 |
/** |
|
|
369 |
* @internal You should not use this directly from another application |
|
|
370 |
* |
|
|
371 |
* @param SplFixedArray $ctx |
|
|
372 |
* @param SplFixedArray $p |
|
|
373 |
* @param int $plen |
|
|
374 |
* @return void |
|
|
375 |
* @throws SodiumException |
|
|
376 |
* @throws TypeError |
|
|
377 |
* @psalm-suppress MixedArgument |
|
|
378 |
* @psalm-suppress MixedAssignment |
|
|
379 |
* @psalm-suppress MixedArrayAccess |
|
|
380 |
* @psalm-suppress MixedArrayAssignment |
|
|
381 |
* @psalm-suppress MixedArrayOffset |
|
|
382 |
* @psalm-suppress MixedMethodCall |
|
|
383 |
* @psalm-suppress MixedOperand |
|
|
384 |
*/ |
|
|
385 |
public static function update(SplFixedArray $ctx, SplFixedArray $p, $plen) |
|
|
386 |
{ |
|
|
387 |
self::pseudoConstructor(); |
|
|
388 |
|
|
|
389 |
$offset = 0; |
|
|
390 |
while ($plen > 0) { |
|
|
391 |
$left = $ctx[4]; |
|
|
392 |
$fill = 256 - $left; |
|
|
393 |
|
|
|
394 |
if ($plen > $fill) { |
|
|
395 |
# memcpy( S->buf + left, in, fill ); /* Fill buffer */ |
|
|
396 |
for ($i = $fill; $i--;) { |
|
|
397 |
$ctx[3][$i + $left] = $p[$i + $offset]; |
|
|
398 |
} |
|
|
399 |
|
|
|
400 |
# S->buflen += fill; |
|
|
401 |
$ctx[4] += $fill; |
|
|
402 |
|
|
|
403 |
# blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES ); |
|
|
404 |
self::increment_counter($ctx, 128); |
|
|
405 |
|
|
|
406 |
# blake2b_compress( S, S->buf ); /* Compress */ |
|
|
407 |
self::compress($ctx, $ctx[3]); |
|
|
408 |
|
|
|
409 |
# memcpy( S->buf, S->buf + BLAKE2B_BLOCKBYTES, BLAKE2B_BLOCKBYTES ); /* Shift buffer left */ |
|
|
410 |
for ($i = 128; $i--;) { |
|
|
411 |
$ctx[3][$i] = $ctx[3][$i + 128]; |
|
|
412 |
} |
|
|
413 |
|
|
|
414 |
# S->buflen -= BLAKE2B_BLOCKBYTES; |
|
|
415 |
$ctx[4] -= 128; |
|
|
416 |
|
|
|
417 |
# in += fill; |
|
|
418 |
$offset += $fill; |
|
|
419 |
|
|
|
420 |
# inlen -= fill; |
|
|
421 |
$plen -= $fill; |
|
|
422 |
} else { |
|
|
423 |
for ($i = $plen; $i--;) { |
|
|
424 |
$ctx[3][$i + $left] = $p[$i + $offset]; |
|
|
425 |
} |
|
|
426 |
$ctx[4] += $plen; |
|
|
427 |
$offset += $plen; |
|
|
428 |
$plen -= $plen; |
|
|
429 |
} |
|
|
430 |
} |
|
|
431 |
} |
|
|
432 |
|
|
|
433 |
/** |
|
|
434 |
* @internal You should not use this directly from another application |
|
|
435 |
* |
|
|
436 |
* @param SplFixedArray $ctx |
|
|
437 |
* @param SplFixedArray $out |
|
|
438 |
* @return SplFixedArray |
|
|
439 |
* @throws SodiumException |
|
|
440 |
* @throws TypeError |
|
|
441 |
* @psalm-suppress MixedArgument |
|
|
442 |
* @psalm-suppress MixedAssignment |
|
|
443 |
* @psalm-suppress MixedArrayAccess |
|
|
444 |
* @psalm-suppress MixedArrayAssignment |
|
|
445 |
* @psalm-suppress MixedArrayOffset |
|
|
446 |
* @psalm-suppress MixedMethodCall |
|
|
447 |
* @psalm-suppress MixedOperand |
|
|
448 |
*/ |
|
|
449 |
public static function finish(SplFixedArray $ctx, SplFixedArray $out) |
|
|
450 |
{ |
|
|
451 |
self::pseudoConstructor(); |
|
|
452 |
if ($ctx[4] > 128) { |
|
|
453 |
self::increment_counter($ctx, 128); |
|
|
454 |
self::compress($ctx, $ctx[3]); |
|
|
455 |
$ctx[4] -= 128; |
|
|
456 |
if ($ctx[4] > 128) { |
|
|
457 |
throw new SodiumException('Failed to assert that buflen <= 128 bytes'); |
|
|
458 |
} |
|
|
459 |
for ($i = $ctx[4]; $i--;) { |
|
|
460 |
$ctx[3][$i] = $ctx[3][$i + 128]; |
|
|
461 |
} |
|
|
462 |
} |
|
|
463 |
|
|
|
464 |
self::increment_counter($ctx, $ctx[4]); |
|
|
465 |
$ctx[2][0] = self::new64(0xffffffff, 0xffffffff); |
|
|
466 |
|
|
|
467 |
for ($i = 256 - $ctx[4]; $i--;) { |
|
|
468 |
/** @var int $i */ |
|
|
469 |
$ctx[3][$i + $ctx[4]] = 0; |
|
|
470 |
} |
|
|
471 |
|
|
|
472 |
self::compress($ctx, $ctx[3]); |
|
|
473 |
|
|
|
474 |
$i = (int) (($out->getSize() - 1) / 8); |
|
|
475 |
for (; $i >= 0; --$i) { |
|
|
476 |
self::store64($out, $i << 3, $ctx[0][$i]); |
|
|
477 |
} |
|
|
478 |
return $out; |
|
|
479 |
} |
|
|
480 |
|
|
|
481 |
/** |
|
|
482 |
* @internal You should not use this directly from another application |
|
|
483 |
* |
|
|
484 |
* @param SplFixedArray|null $key |
|
|
485 |
* @param int $outlen |
|
16
|
486 |
* @param SplFixedArray|null $salt |
|
|
487 |
* @param SplFixedArray|null $personal |
|
9
|
488 |
* @return SplFixedArray |
|
|
489 |
* @throws SodiumException |
|
|
490 |
* @throws TypeError |
|
|
491 |
* @psalm-suppress MixedArgument |
|
|
492 |
* @psalm-suppress MixedAssignment |
|
|
493 |
* @psalm-suppress MixedArrayAccess |
|
|
494 |
* @psalm-suppress MixedArrayAssignment |
|
|
495 |
* @psalm-suppress MixedMethodCall |
|
|
496 |
*/ |
|
16
|
497 |
public static function init( |
|
|
498 |
$key = null, |
|
|
499 |
$outlen = 64, |
|
|
500 |
$salt = null, |
|
|
501 |
$personal = null |
|
|
502 |
) { |
|
9
|
503 |
self::pseudoConstructor(); |
|
|
504 |
$klen = 0; |
|
|
505 |
|
|
|
506 |
if ($key !== null) { |
|
|
507 |
if (count($key) > 64) { |
|
|
508 |
throw new SodiumException('Invalid key size'); |
|
|
509 |
} |
|
|
510 |
$klen = count($key); |
|
|
511 |
} |
|
|
512 |
|
|
|
513 |
if ($outlen > 64) { |
|
|
514 |
throw new SodiumException('Invalid output size'); |
|
|
515 |
} |
|
|
516 |
|
|
|
517 |
$ctx = self::context(); |
|
|
518 |
|
|
|
519 |
$p = new SplFixedArray(64); |
|
16
|
520 |
// Zero our param buffer... |
|
9
|
521 |
for ($i = 64; --$i;) { |
|
|
522 |
$p[$i] = 0; |
|
|
523 |
} |
|
|
524 |
|
|
|
525 |
$p[0] = $outlen; // digest_length |
|
|
526 |
$p[1] = $klen; // key_length |
|
|
527 |
$p[2] = 1; // fanout |
|
|
528 |
$p[3] = 1; // depth |
|
|
529 |
|
|
16
|
530 |
if ($salt instanceof SplFixedArray) { |
|
|
531 |
// salt: [32] through [47] |
|
|
532 |
for ($i = 0; $i < 16; ++$i) { |
|
|
533 |
$p[32 + $i] = (int) $salt[$i]; |
|
|
534 |
} |
|
|
535 |
} |
|
|
536 |
if ($personal instanceof SplFixedArray) { |
|
|
537 |
// personal: [48] through [63] |
|
|
538 |
for ($i = 0; $i < 16; ++$i) { |
|
|
539 |
$p[48 + $i] = (int) $personal[$i]; |
|
|
540 |
} |
|
|
541 |
} |
|
|
542 |
|
|
9
|
543 |
$ctx[0][0] = self::xor64( |
|
|
544 |
$ctx[0][0], |
|
|
545 |
self::load64($p, 0) |
|
|
546 |
); |
|
|
547 |
|
|
16
|
548 |
if ($salt instanceof SplFixedArray || $personal instanceof SplFixedArray) { |
|
|
549 |
// We need to do what blake2b_init_param() does: |
|
|
550 |
for ($i = 1; $i < 8; ++$i) { |
|
|
551 |
$ctx[0][$i] = self::xor64( |
|
|
552 |
$ctx[0][$i], |
|
|
553 |
self::load64($p, $i << 3) |
|
|
554 |
); |
|
|
555 |
} |
|
|
556 |
} |
|
|
557 |
|
|
9
|
558 |
if ($klen > 0 && $key instanceof SplFixedArray) { |
|
|
559 |
$block = new SplFixedArray(128); |
|
|
560 |
for ($i = 128; $i--;) { |
|
|
561 |
$block[$i] = 0; |
|
|
562 |
} |
|
|
563 |
for ($i = $klen; $i--;) { |
|
|
564 |
$block[$i] = $key[$i]; |
|
|
565 |
} |
|
|
566 |
self::update($ctx, $block, 128); |
|
16
|
567 |
$ctx[4] = 128; |
|
9
|
568 |
} |
|
|
569 |
|
|
|
570 |
return $ctx; |
|
|
571 |
} |
|
|
572 |
|
|
|
573 |
/** |
|
|
574 |
* Convert a string into an SplFixedArray of integers |
|
|
575 |
* |
|
|
576 |
* @internal You should not use this directly from another application |
|
|
577 |
* |
|
|
578 |
* @param string $str |
|
|
579 |
* @return SplFixedArray |
|
18
|
580 |
* @psalm-suppress MixedArgumentTypeCoercion |
|
9
|
581 |
*/ |
|
|
582 |
public static function stringToSplFixedArray($str = '') |
|
|
583 |
{ |
|
|
584 |
$values = unpack('C*', $str); |
|
|
585 |
return SplFixedArray::fromArray(array_values($values)); |
|
|
586 |
} |
|
|
587 |
|
|
|
588 |
/** |
|
|
589 |
* Convert an SplFixedArray of integers into a string |
|
|
590 |
* |
|
|
591 |
* @internal You should not use this directly from another application |
|
|
592 |
* |
|
|
593 |
* @param SplFixedArray $a |
|
|
594 |
* @return string |
|
|
595 |
*/ |
|
|
596 |
public static function SplFixedArrayToString(SplFixedArray $a) |
|
|
597 |
{ |
|
|
598 |
/** |
|
|
599 |
* @var array<int, string|int> |
|
|
600 |
*/ |
|
|
601 |
$arr = $a->toArray(); |
|
|
602 |
$c = $a->count(); |
|
|
603 |
array_unshift($arr, str_repeat('C', $c)); |
|
|
604 |
return (string) (call_user_func_array('pack', $arr)); |
|
|
605 |
} |
|
|
606 |
|
|
|
607 |
/** |
|
|
608 |
* @internal You should not use this directly from another application |
|
|
609 |
* |
|
|
610 |
* @param SplFixedArray $ctx |
|
|
611 |
* @return string |
|
|
612 |
* @throws TypeError |
|
|
613 |
* @psalm-suppress MixedArgument |
|
|
614 |
* @psalm-suppress MixedArrayAccess |
|
|
615 |
* @psalm-suppress MixedArrayAssignment |
|
|
616 |
* @psalm-suppress MixedMethodCall |
|
|
617 |
*/ |
|
|
618 |
public static function contextToString(SplFixedArray $ctx) |
|
|
619 |
{ |
|
|
620 |
$str = ''; |
|
|
621 |
/** @var array<int, ParagonIE_Sodium_Core32_Int64> $ctxA */ |
|
|
622 |
$ctxA = $ctx[0]->toArray(); |
|
|
623 |
|
|
|
624 |
# uint64_t h[8]; |
|
|
625 |
for ($i = 0; $i < 8; ++$i) { |
|
|
626 |
if (!($ctxA[$i] instanceof ParagonIE_Sodium_Core32_Int64)) { |
|
|
627 |
throw new TypeError('Not an instance of Int64'); |
|
|
628 |
} |
|
|
629 |
/** @var ParagonIE_Sodium_Core32_Int64 $ctxAi */ |
|
|
630 |
$ctxAi = $ctxA[$i]; |
|
16
|
631 |
$str .= $ctxAi->toReverseString(); |
|
9
|
632 |
} |
|
|
633 |
|
|
|
634 |
# uint64_t t[2]; |
|
|
635 |
# uint64_t f[2]; |
|
|
636 |
for ($i = 1; $i < 3; ++$i) { |
|
|
637 |
/** @var array<int, ParagonIE_Sodium_Core32_Int64> $ctxA */ |
|
|
638 |
$ctxA = $ctx[$i]->toArray(); |
|
|
639 |
/** @var ParagonIE_Sodium_Core32_Int64 $ctxA1 */ |
|
|
640 |
$ctxA1 = $ctxA[0]; |
|
|
641 |
/** @var ParagonIE_Sodium_Core32_Int64 $ctxA2 */ |
|
|
642 |
$ctxA2 = $ctxA[1]; |
|
|
643 |
|
|
16
|
644 |
$str .= $ctxA1->toReverseString(); |
|
|
645 |
$str .= $ctxA2->toReverseString(); |
|
9
|
646 |
} |
|
|
647 |
|
|
|
648 |
# uint8_t buf[2 * 128]; |
|
|
649 |
$str .= self::SplFixedArrayToString($ctx[3]); |
|
|
650 |
|
|
|
651 |
/** @var int $ctx4 */ |
|
|
652 |
$ctx4 = $ctx[4]; |
|
|
653 |
|
|
|
654 |
# size_t buflen; |
|
|
655 |
$str .= implode('', array( |
|
|
656 |
self::intToChr($ctx4 & 0xff), |
|
|
657 |
self::intToChr(($ctx4 >> 8) & 0xff), |
|
|
658 |
self::intToChr(($ctx4 >> 16) & 0xff), |
|
|
659 |
self::intToChr(($ctx4 >> 24) & 0xff), |
|
16
|
660 |
"\x00\x00\x00\x00" |
|
|
661 |
/* |
|
9
|
662 |
self::intToChr(($ctx4 >> 32) & 0xff), |
|
|
663 |
self::intToChr(($ctx4 >> 40) & 0xff), |
|
|
664 |
self::intToChr(($ctx4 >> 48) & 0xff), |
|
|
665 |
self::intToChr(($ctx4 >> 56) & 0xff) |
|
16
|
666 |
*/ |
|
9
|
667 |
)); |
|
|
668 |
# uint8_t last_node; |
|
16
|
669 |
return $str . self::intToChr($ctx[5]) . str_repeat("\x00", 23); |
|
9
|
670 |
} |
|
|
671 |
|
|
|
672 |
/** |
|
|
673 |
* Creates an SplFixedArray containing other SplFixedArray elements, from |
|
|
674 |
* a string (compatible with \Sodium\crypto_generichash_{init, update, final}) |
|
|
675 |
* |
|
|
676 |
* @internal You should not use this directly from another application |
|
|
677 |
* |
|
|
678 |
* @param string $string |
|
|
679 |
* @return SplFixedArray |
|
|
680 |
* @throws SodiumException |
|
|
681 |
* @throws TypeError |
|
|
682 |
* @psalm-suppress MixedArrayAccess |
|
|
683 |
* @psalm-suppress MixedArrayAssignment |
|
|
684 |
*/ |
|
|
685 |
public static function stringToContext($string) |
|
|
686 |
{ |
|
|
687 |
$ctx = self::context(); |
|
|
688 |
|
|
|
689 |
# uint64_t h[8]; |
|
|
690 |
for ($i = 0; $i < 8; ++$i) { |
|
16
|
691 |
$ctx[0][$i] = ParagonIE_Sodium_Core32_Int64::fromReverseString( |
|
9
|
692 |
self::substr($string, (($i << 3) + 0), 8) |
|
|
693 |
); |
|
|
694 |
} |
|
|
695 |
|
|
|
696 |
# uint64_t t[2]; |
|
|
697 |
# uint64_t f[2]; |
|
|
698 |
for ($i = 1; $i < 3; ++$i) { |
|
16
|
699 |
$ctx[$i][1] = ParagonIE_Sodium_Core32_Int64::fromReverseString( |
|
9
|
700 |
self::substr($string, 72 + (($i - 1) << 4), 8) |
|
|
701 |
); |
|
16
|
702 |
$ctx[$i][0] = ParagonIE_Sodium_Core32_Int64::fromReverseString( |
|
9
|
703 |
self::substr($string, 64 + (($i - 1) << 4), 8) |
|
|
704 |
); |
|
|
705 |
} |
|
|
706 |
|
|
|
707 |
# uint8_t buf[2 * 128]; |
|
|
708 |
$ctx[3] = self::stringToSplFixedArray(self::substr($string, 96, 256)); |
|
|
709 |
|
|
|
710 |
# uint8_t buf[2 * 128]; |
|
|
711 |
$int = 0; |
|
|
712 |
for ($i = 0; $i < 8; ++$i) { |
|
|
713 |
$int |= self::chrToInt($string[352 + $i]) << ($i << 3); |
|
|
714 |
} |
|
|
715 |
$ctx[4] = $int; |
|
|
716 |
|
|
|
717 |
return $ctx; |
|
|
718 |
} |
|
|
719 |
} |