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author | Anton Luka Šijanec <anton@sijanec.eu> | 2022-01-11 12:35:47 +0100 |
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committer | Anton Luka Šijanec <anton@sijanec.eu> | 2022-01-11 12:35:47 +0100 |
commit | 19985dbb8c0aa66dc4bf7905abc1148de909097d (patch) | |
tree | 2cd5a5d20d7e80fc2a51adf60d838d8a2c40999e /vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php | |
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Diffstat (limited to 'vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php')
-rw-r--r-- | vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php b/vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php new file mode 100644 index 0000000..39287f2 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php @@ -0,0 +1,141 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_HSalsa20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_HSalsa20 + */ +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(); + } +} |