Файловый менеджер

Файловый менеджер - Редактировать - /home/kckglobal/public_html/portal/vendor/paragonie/sodium_compat/src/Core/ChaCha20.php

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<?php declare(strict_types=1); if (class_exists('ParagonIE_Sodium_Core_ChaCha20', false)) { return; } /** * Class ParagonIE_Sodium_Core_ChaCha20 / class ParagonIE_Sodium_Core_ChaCha20 extends ParagonIE_Sodium_Core_Util { /* * Bitwise left rotation * * @internal You should not use this directly from another application * * @param int $v * @param int $n * @return int / public static function rotate(int $v, int $n): int { $v &= 0xffffffff; $n &= 31; return ( 0xffffffff & ( ($v << $n) \| ($v >> (32 - $n)) ) ); } /* * The ChaCha20 quarter round function. Works on four 32-bit integers. * * @internal You should not use this directly from another application * * @param int $a * @param int $b * @param int $c * @param int $d * @return array<int, int> / protected static function quarterRound(int $a, int $b, int $c, int $d): array { # a = PLUS(a,b); d = ROTATE(XOR(d,a),16); /* @var int $a / $a = ($a + $b) & 0xffffffff; $d = self::rotate($d ^ $a, 16); # c = PLUS(c,d); b = ROTATE(XOR(b,c),12); /* @var int $c / $c = ($c + $d) & 0xffffffff; $b = self::rotate($b ^ $c, 12); # a = PLUS(a,b); d = ROTATE(XOR(d,a), 8); /* @var int $a / $a = ($a + $b) & 0xffffffff; $d = self::rotate($d ^ $a, 8); # c = PLUS(c,d); b = ROTATE(XOR(b,c), 7); /* @var int $c / $c = ($c + $d) & 0xffffffff; $b = self::rotate($b ^ $c, 7); return array($a, $b, $c, $d); } /* * @internal You should not use this directly from another application * * @param ParagonIE_Sodium_Core_ChaCha20_Ctx $ctx * @param string $message * * @return string * @throws TypeError * @throws SodiumException / public static function encryptBytes( ParagonIE_Sodium_Core_ChaCha20_Ctx $ctx, #[SensitiveParameter] string $message = '' ): string { $bytes = self::strlen($message); $j0 = (int) $ctx[0]; $j1 = (int) $ctx[1]; $j2 = (int) $ctx[2]; $j3 = (int) $ctx[3]; $j4 = (int) $ctx[4]; $j5 = (int) $ctx[5]; $j6 = (int) $ctx[6]; $j7 = (int) $ctx[7]; $j8 = (int) $ctx[8]; $j9 = (int) $ctx[9]; $j10 = (int) $ctx[10]; $j11 = (int) $ctx[11]; $j12 = (int) $ctx[12]; $j13 = (int) $ctx[13]; $j14 = (int) $ctx[14]; $j15 = (int) $ctx[15]; $c = ''; for (;;) { if ($bytes < 64) { $message .= str_repeat("\x00", 64 - $bytes); } $x0 = $j0; $x1 = $j1; $x2 = $j2; $x3 = $j3; $x4 = $j4; $x5 = $j5; $x6 = $j6; $x7 = $j7; $x8 = $j8; $x9 = $j9; $x10 = $j10; $x11 = $j11; $x12 = $j12; $x13 = $j13; $x14 = $j14; $x15 = $j15; # for (i = 20; i > 0; i -= 2) { for ($i = 20; $i > 0; $i -= 2) { [$x0, $x4, $x8, $x12] = self::quarterRound($x0, $x4, $x8, $x12); [$x1, $x5, $x9, $x13] = self::quarterRound($x1, $x5, $x9, $x13); [$x2, $x6, $x10, $x14] = self::quarterRound($x2, $x6, $x10, $x14); [$x3, $x7, $x11, $x15] = self::quarterRound($x3, $x7, $x11, $x15); [$x0, $x5, $x10, $x15] = self::quarterRound($x0, $x5, $x10, $x15); [$x1, $x6, $x11, $x12] = self::quarterRound($x1, $x6, $x11, $x12); [$x2, $x7, $x8, $x13] = self::quarterRound($x2, $x7, $x8, $x13); [$x3, $x4, $x9, $x14] = self::quarterRound($x3, $x4, $x9, $x14); } $x0 = ($x0 & 0xffffffff) + $j0; $x1 = ($x1 & 0xffffffff) + $j1; $x2 = ($x2 & 0xffffffff) + $j2; $x3 = ($x3 & 0xffffffff) + $j3; $x4 = ($x4 & 0xffffffff) + $j4; $x5 = ($x5 & 0xffffffff) + $j5; $x6 = ($x6 & 0xffffffff) + $j6; $x7 = ($x7 & 0xffffffff) + $j7; $x8 = ($x8 & 0xffffffff) + $j8; $x9 = ($x9 & 0xffffffff) + $j9; $x10 = ($x10 & 0xffffffff) + $j10; $x11 = ($x11 & 0xffffffff) + $j11; $x12 = ($x12 & 0xffffffff) + $j12; $x13 = ($x13 & 0xffffffff) + $j13; $x14 = ($x14 & 0xffffffff) + $j14; $x15 = ($x15 & 0xffffffff) + $j15; $x0 ^= self::load_4(self::substr($message, 0, 4)); $x1 ^= self::load_4(self::substr($message, 4, 4)); $x2 ^= self::load_4(self::substr($message, 8, 4)); $x3 ^= self::load_4(self::substr($message, 12, 4)); $x4 ^= self::load_4(self::substr($message, 16, 4)); $x5 ^= self::load_4(self::substr($message, 20, 4)); $x6 ^= self::load_4(self::substr($message, 24, 4)); $x7 ^= self::load_4(self::substr($message, 28, 4)); $x8 ^= self::load_4(self::substr($message, 32, 4)); $x9 ^= self::load_4(self::substr($message, 36, 4)); $x10 ^= self::load_4(self::substr($message, 40, 4)); $x11 ^= self::load_4(self::substr($message, 44, 4)); $x12 ^= self::load_4(self::substr($message, 48, 4)); $x13 ^= self::load_4(self::substr($message, 52, 4)); $x14 ^= self::load_4(self::substr($message, 56, 4)); $x15 ^= self::load_4(self::substr($message, 60, 4)); ++$j12; if ($j12 & 0xf0000000) { throw new SodiumException('Overflow'); } $block = self::store32_le(($x0 & 0xffffffff)) . self::store32_le(($x1 & 0xffffffff)) . self::store32_le(($x2 & 0xffffffff)) . self::store32_le(($x3 & 0xffffffff)) . self::store32_le(($x4 & 0xffffffff)) . self::store32_le(($x5 & 0xffffffff)) . self::store32_le(($x6 & 0xffffffff)) . self::store32_le(($x7 & 0xffffffff)) . self::store32_le(($x8 & 0xffffffff)) . self::store32_le(($x9 & 0xffffffff)) . self::store32_le(($x10 & 0xffffffff)) . self::store32_le(($x11 & 0xffffffff)) . self::store32_le(($x12 & 0xffffffff)) . self::store32_le(($x13 & 0xffffffff)) . self::store32_le(($x14 & 0xffffffff)) . self::store32_le(($x15 & 0xffffffff)); / Partial block / if ($bytes < 64) { $c .= self::substr($block, 0, $bytes); break; } / Full block / $c .= $block; $bytes -= 64; if ($bytes <= 0) { break; } $message = self::substr($message, 64); } / end for(;;) loop / $ctx[12] = $j12; $ctx[13] = $j13; return $c; } /* * @internal You should not use this directly from another application * * @param int $len * @param string $nonce * @param string $key * @return string * @throws SodiumException * @throws TypeError / public static function stream( int $len = 64, string $nonce = '', #[SensitiveParameter] string $key = '' ): string { return self::encryptBytes( new ParagonIE_Sodium_Core_ChaCha20_Ctx($key, $nonce), str_repeat("\x00", $len) ); } /* * @internal You should not use this directly from another application * * @param int $len * @param string $nonce * @param string $key * @return string * @throws SodiumException * @throws TypeError / public static function ietfStream( int $len, string $nonce = '', #[SensitiveParameter] string $key = '' ): string { return self::encryptBytes( new ParagonIE_Sodium_Core_ChaCha20_IetfCtx($key, $nonce), str_repeat("\x00", $len) ); } /* * @internal You should not use this directly from another application * * @param string $message * @param string $nonce * @param string $key * @param string $ic * @return string * @throws SodiumException * @throws TypeError / public static function ietfStreamXorIc( #[SensitiveParameter] string $message, string $nonce = '', #[SensitiveParameter] string $key = '', string $ic = '' ): string { return self::encryptBytes( new ParagonIE_Sodium_Core_ChaCha20_IetfCtx($key, $nonce, $ic), $message ); } /* * @internal You should not use this directly from another application * * @param string $message * @param string $nonce * @param string $key * @param string $ic * @return string * @throws SodiumException * @throws TypeError */ public static function streamXorIc( #[SensitiveParameter] string $message, string $nonce = '', #[SensitiveParameter] string $key = '', string $ic = '' ): string { return self::encryptBytes( new ParagonIE_Sodium_Core_ChaCha20_Ctx($key, $nonce, $ic), $message ); } }

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