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Gestionnaire de fichiers - Editer - /home/genremedia08/thepassage.overlookedtracks.com/wp-includes9/sodium_compat/src/Core/Poly1305/State.php

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<?php if (class_exists('ParagonIE_Sodium_Core_Poly1305_State', false)) { return; } /** * Class ParagonIE_Sodium_Core_Poly1305_State / class ParagonIE_Sodium_Core_Poly1305_State extends ParagonIE_Sodium_Core_Util { /* * @var array<int, int> / protected $buffer = array(); /* * @var bool / protected $final = false; /* * @var array<int, int> / public $h; /* * @var int / protected $leftover = 0; /* * @var int[] / public $r; /* * @var int[] / public $pad; /* * ParagonIE_Sodium_Core_Poly1305_State constructor. * * @internal You should not use this directly from another application * * @param string $key * @throws InvalidArgumentException * @throws TypeError / public function __construct($key = '') { if (self::strlen($key) < 32) { throw new InvalidArgumentException( 'Poly1305 requires a 32-byte key' ); } / r &= 0xffffffc0ffffffc0ffffffc0fffffff / $this->r = array( (int) ((self::load_4(self::substr($key, 0, 4))) & 0x3ffffff), (int) ((self::load_4(self::substr($key, 3, 4)) >> 2) & 0x3ffff03), (int) ((self::load_4(self::substr($key, 6, 4)) >> 4) & 0x3ffc0ff), (int) ((self::load_4(self::substr($key, 9, 4)) >> 6) & 0x3f03fff), (int) ((self::load_4(self::substr($key, 12, 4)) >> 8) & 0x00fffff) ); / h = 0 / $this->h = array(0, 0, 0, 0, 0); / save pad for later / $this->pad = array( self::load_4(self::substr($key, 16, 4)), self::load_4(self::substr($key, 20, 4)), self::load_4(self::substr($key, 24, 4)), self::load_4(self::substr($key, 28, 4)), ); $this->leftover = 0; $this->final = false; } /* * Zero internal buffer upon destruction / public function __destruct() { $this->r[0] ^= $this->r[0]; $this->r[1] ^= $this->r[1]; $this->r[2] ^= $this->r[2]; $this->r[3] ^= $this->r[3]; $this->r[4] ^= $this->r[4]; $this->h[0] ^= $this->h[0]; $this->h[1] ^= $this->h[1]; $this->h[2] ^= $this->h[2]; $this->h[3] ^= $this->h[3]; $this->h[4] ^= $this->h[4]; $this->pad[0] ^= $this->pad[0]; $this->pad[1] ^= $this->pad[1]; $this->pad[2] ^= $this->pad[2]; $this->pad[3] ^= $this->pad[3]; $this->leftover = 0; $this->final = true; } /* * @internal You should not use this directly from another application * * @param string $message * @return self * @throws SodiumException * @throws TypeError / public function update($message = '') { $bytes = self::strlen($message); if ($bytes < 1) { return $this; } / handle leftover / if ($this->leftover) { $want = ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE - $this->leftover; if ($want > $bytes) { $want = $bytes; } for ($i = 0; $i < $want; ++$i) { $mi = self::chrToInt($message[$i]); $this->buffer[$this->leftover + $i] = $mi; } // We snip off the leftmost bytes. $message = self::substr($message, $want); $bytes = self::strlen($message); $this->leftover += $want; if ($this->leftover < ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE) { // We still don't have enough to run $this->blocks() return $this; } $this->blocks( self::intArrayToString($this->buffer), ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE ); $this->leftover = 0; } / process full blocks / if ($bytes >= ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE) { /* @var int $want / $want = $bytes & ~(ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE - 1); if ($want >= ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE) { $block = self::substr($message, 0, $want); if (self::strlen($block) >= ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE) { $this->blocks($block, $want); $message = self::substr($message, $want); $bytes = self::strlen($message); } } } / store leftover / if ($bytes) { for ($i = 0; $i < $bytes; ++$i) { $mi = self::chrToInt($message[$i]); $this->buffer[$this->leftover + $i] = $mi; } $this->leftover = (int) $this->leftover + $bytes; } return $this; } /* * @internal You should not use this directly from another application * * @param string $message * @param int $bytes * @return self * @throws TypeError / public function blocks($message, $bytes) { if (self::strlen($message) < 16) { $message = str_pad($message, 16, "\x00", STR_PAD_RIGHT); } /* @var int $hibit / $hibit = $this->final ? 0 : 1 << 24; / 1 << 128 / $r0 = (int) $this->r[0]; $r1 = (int) $this->r[1]; $r2 = (int) $this->r[2]; $r3 = (int) $this->r[3]; $r4 = (int) $this->r[4]; $s1 = self::mul($r1, 5, 3); $s2 = self::mul($r2, 5, 3); $s3 = self::mul($r3, 5, 3); $s4 = self::mul($r4, 5, 3); $h0 = $this->h[0]; $h1 = $this->h[1]; $h2 = $this->h[2]; $h3 = $this->h[3]; $h4 = $this->h[4]; while ($bytes >= ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE) { / h += m[i] / $h0 += self::load_4(self::substr($message, 0, 4)) & 0x3ffffff; $h1 += (self::load_4(self::substr($message, 3, 4)) >> 2) & 0x3ffffff; $h2 += (self::load_4(self::substr($message, 6, 4)) >> 4) & 0x3ffffff; $h3 += (self::load_4(self::substr($message, 9, 4)) >> 6) & 0x3ffffff; $h4 += (self::load_4(self::substr($message, 12, 4)) >> 8) \| $hibit; / h = r / $d0 = ( self::mul($h0, $r0, 27) + self::mul($s4, $h1, 27) + self::mul($s3, $h2, 27) + self::mul($s2, $h3, 27) + self::mul($s1, $h4, 27) ); $d1 = ( self::mul($h0, $r1, 27) + self::mul($h1, $r0, 27) + self::mul($s4, $h2, 27) + self::mul($s3, $h3, 27) + self::mul($s2, $h4, 27) ); $d2 = ( self::mul($h0, $r2, 27) + self::mul($h1, $r1, 27) + self::mul($h2, $r0, 27) + self::mul($s4, $h3, 27) + self::mul($s3, $h4, 27) ); $d3 = ( self::mul($h0, $r3, 27) + self::mul($h1, $r2, 27) + self::mul($h2, $r1, 27) + self::mul($h3, $r0, 27) + self::mul($s4, $h4, 27) ); $d4 = ( self::mul($h0, $r4, 27) + self::mul($h1, $r3, 27) + self::mul($h2, $r2, 27) + self::mul($h3, $r1, 27) + self::mul($h4, $r0, 27) ); /* (partial) h %= p / /* @var int $c / $c = $d0 >> 26; /* @var int $h0 / $h0 = $d0 & 0x3ffffff; $d1 += $c; /* @var int $c / $c = $d1 >> 26; /* @var int $h1 / $h1 = $d1 & 0x3ffffff; $d2 += $c; /* @var int $c / $c = $d2 >> 26; /* @var int $h2 / $h2 = $d2 & 0x3ffffff; $d3 += $c; /* @var int $c / $c = $d3 >> 26; /* @var int $h3 / $h3 = $d3 & 0x3ffffff; $d4 += $c; /* @var int $c / $c = $d4 >> 26; /* @var int $h4 / $h4 = $d4 & 0x3ffffff; $h0 += (int) self::mul($c, 5, 3); /* @var int $c / $c = $h0 >> 26; /* @var int $h0 / $h0 &= 0x3ffffff; $h1 += $c; // Chop off the left 32 bytes. $message = self::substr( $message, ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE ); $bytes -= ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE; } $this->h = array( (int) ($h0 & 0xffffffff), (int) ($h1 & 0xffffffff), (int) ($h2 & 0xffffffff), (int) ($h3 & 0xffffffff), (int) ($h4 & 0xffffffff) ); return $this; } /* * @internal You should not use this directly from another application * * @return string * @throws TypeError / public function finish() { / process the remaining block / if ($this->leftover) { $i = $this->leftover; $this->buffer[$i++] = 1; for (; $i < ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE; ++$i) { $this->buffer[$i] = 0; } $this->final = true; $this->blocks( self::substr( self::intArrayToString($this->buffer), 0, ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE ), ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE ); } $h0 = (int) $this->h[0]; $h1 = (int) $this->h[1]; $h2 = (int) $this->h[2]; $h3 = (int) $this->h[3]; $h4 = (int) $this->h[4]; /* @var int $c / $c = $h1 >> 26; /* @var int $h1 / $h1 &= 0x3ffffff; /* @var int $h2 / $h2 += $c; /* @var int $c / $c = $h2 >> 26; /* @var int $h2 / $h2 &= 0x3ffffff; $h3 += $c; /* @var int $c / $c = $h3 >> 26; $h3 &= 0x3ffffff; $h4 += $c; /* @var int $c / $c = $h4 >> 26; $h4 &= 0x3ffffff; /* @var int $h0 / $h0 += self::mul($c, 5, 3); /* @var int $c / $c = $h0 >> 26; /* @var int $h0 / $h0 &= 0x3ffffff; /* @var int $h1 / $h1 += $c; / compute h + -p / /* @var int $g0 / $g0 = $h0 + 5; /* @var int $c / $c = $g0 >> 26; /* @var int $g0 / $g0 &= 0x3ffffff; /* @var int $g1 / $g1 = $h1 + $c; /* @var int $c / $c = $g1 >> 26; $g1 &= 0x3ffffff; /* @var int $g2 / $g2 = $h2 + $c; /* @var int $c / $c = $g2 >> 26; /* @var int $g2 / $g2 &= 0x3ffffff; /* @var int $g3 / $g3 = $h3 + $c; /* @var int $c / $c = $g3 >> 26; /* @var int $g3 / $g3 &= 0x3ffffff; /* @var int $g4 / $g4 = ($h4 + $c - (1 << 26)) & 0xffffffff; / select h if h < p, or h + -p if h >= p / /* @var int $mask / $mask = ($g4 >> 31) - 1; $g0 &= $mask; $g1 &= $mask; $g2 &= $mask; $g3 &= $mask; $g4 &= $mask; /* @var int $mask / $mask = ~$mask & 0xffffffff; /* @var int $h0 / $h0 = ($h0 & $mask) \| $g0; /* @var int $h1 / $h1 = ($h1 & $mask) \| $g1; /* @var int $h2 / $h2 = ($h2 & $mask) \| $g2; /* @var int $h3 / $h3 = ($h3 & $mask) \| $g3; /* @var int $h4 / $h4 = ($h4 & $mask) \| $g4; / h = h % (2^128) / /* @var int $h0 / $h0 = (($h0) \| ($h1 << 26)) & 0xffffffff; /* @var int $h1 / $h1 = (($h1 >> 6) \| ($h2 << 20)) & 0xffffffff; /* @var int $h2 / $h2 = (($h2 >> 12) \| ($h3 << 14)) & 0xffffffff; /* @var int $h3 / $h3 = (($h3 >> 18) \| ($h4 << 8)) & 0xffffffff; / mac = (h + pad) % (2^128) */ $f = (int) ($h0 + $this->pad[0]); $h0 = (int) $f; $f = (int) ($h1 + $this->pad[1] + ($f >> 32)); $h1 = (int) $f; $f = (int) ($h2 + $this->pad[2] + ($f >> 32)); $h2 = (int) $f; $f = (int) ($h3 + $this->pad[3] + ($f >> 32)); $h3 = (int) $f; return self::store32_le($h0 & 0xffffffff) . self::store32_le($h1 & 0xffffffff) . self::store32_le($h2 & 0xffffffff) . self::store32_le($h3 & 0xffffffff); } }