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PK��<,]�X]>��]>�� State.phpnu��<?php if (class_exists('ParagonIE_Sodium_Core32_Poly1305_State', false)) { return; } /** * Class ParagonIE_Sodium_Core32_Poly1305_State / class ParagonIE_Sodium_Core32_Poly1305_State extends ParagonIE_Sodium_Core32_Util { /* * @var array<int, int> / protected $buffer = array(); /* * @var bool / protected $final = false; /* * @var array<int, ParagonIE_Sodium_Core32_Int32> / public $h; /* * @var int / protected $leftover = 0; /* * @var array<int, ParagonIE_Sodium_Core32_Int32> / public $r; /* * @var array<int, ParagonIE_Sodium_Core32_Int64> / public $pad; /* * ParagonIE_Sodium_Core32_Poly1305_State constructor. * * @internal You should not use this directly from another application * * @param string $key * @throws InvalidArgumentException * @throws SodiumException * @throws TypeError / public function __construct($key = '') { if (self::strlen($key) < 32) { throw new InvalidArgumentException( 'Poly1305 requires a 32-byte key' ); } / r &= 0xffffffc0ffffffc0ffffffc0fffffff / $this->r = array( // st->r[0] = ... ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 0, 4)) ->setUnsignedInt(true) ->mask(0x3ffffff), // st->r[1] = ... ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 3, 4)) ->setUnsignedInt(true) ->shiftRight(2) ->mask(0x3ffff03), // st->r[2] = ... ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 6, 4)) ->setUnsignedInt(true) ->shiftRight(4) ->mask(0x3ffc0ff), // st->r[3] = ... ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 9, 4)) ->setUnsignedInt(true) ->shiftRight(6) ->mask(0x3f03fff), // st->r[4] = ... ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 12, 4)) ->setUnsignedInt(true) ->shiftRight(8) ->mask(0x00fffff) ); / h = 0 / $this->h = array( new ParagonIE_Sodium_Core32_Int32(array(0, 0), true), new ParagonIE_Sodium_Core32_Int32(array(0, 0), true), new ParagonIE_Sodium_Core32_Int32(array(0, 0), true), new ParagonIE_Sodium_Core32_Int32(array(0, 0), true), new ParagonIE_Sodium_Core32_Int32(array(0, 0), true) ); / save pad for later / $this->pad = array( ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 16, 4)) ->setUnsignedInt(true)->toInt64(), ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 20, 4)) ->setUnsignedInt(true)->toInt64(), ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 24, 4)) ->setUnsignedInt(true)->toInt64(), ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 28, 4)) ->setUnsignedInt(true)->toInt64(), ); $this->leftover = 0; $this->final = false; } /* * @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); / handle leftover / if ($this->leftover) { /* @var int $want / $want = ParagonIE_Sodium_Core32_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_Core32_Poly1305::BLOCK_SIZE) { // We still don't have enough to run $this->blocks() return $this; } $this->blocks( self::intArrayToString($this->buffer), ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE ); $this->leftover = 0; } / process full blocks / if ($bytes >= ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE) { /* @var int $want / $want = $bytes & ~(ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE - 1); if ($want >= ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE) { /* @var string $block / $block = self::substr($message, 0, $want); if (self::strlen($block) >= ParagonIE_Sodium_Core32_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 $bytes * @return self * @throws SodiumException * @throws TypeError / public function blocks($message, $bytes) { if (self::strlen($message) < 16) { $message = str_pad($message, 16, "\x00", STR_PAD_RIGHT); } $hibit = ParagonIE_Sodium_Core32_Int32::fromInt((int) ($this->final ? 0 : 1 << 24)); / 1 << 128 / $hibit->setUnsignedInt(true); $zero = new ParagonIE_Sodium_Core32_Int64(array(0, 0, 0, 0), true); /* * @var ParagonIE_Sodium_Core32_Int64 $d0 * @var ParagonIE_Sodium_Core32_Int64 $d1 * @var ParagonIE_Sodium_Core32_Int64 $d2 * @var ParagonIE_Sodium_Core32_Int64 $d3 * @var ParagonIE_Sodium_Core32_Int64 $d4 * @var ParagonIE_Sodium_Core32_Int64 $r0 * @var ParagonIE_Sodium_Core32_Int64 $r1 * @var ParagonIE_Sodium_Core32_Int64 $r2 * @var ParagonIE_Sodium_Core32_Int64 $r3 * @var ParagonIE_Sodium_Core32_Int64 $r4 * * @var ParagonIE_Sodium_Core32_Int32 $h0 * @var ParagonIE_Sodium_Core32_Int32 $h1 * @var ParagonIE_Sodium_Core32_Int32 $h2 * @var ParagonIE_Sodium_Core32_Int32 $h3 * @var ParagonIE_Sodium_Core32_Int32 $h4 / $r0 = $this->r[0]->toInt64(); $r1 = $this->r[1]->toInt64(); $r2 = $this->r[2]->toInt64(); $r3 = $this->r[3]->toInt64(); $r4 = $this->r[4]->toInt64(); $s1 = $r1->toInt64()->mulInt(5, 3); $s2 = $r2->toInt64()->mulInt(5, 3); $s3 = $r3->toInt64()->mulInt(5, 3); $s4 = $r4->toInt64()->mulInt(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_Core32_Poly1305::BLOCK_SIZE) { / h += m[i] / $h0 = $h0->addInt32( ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 0, 4)) ->mask(0x3ffffff) )->toInt64(); $h1 = $h1->addInt32( ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 3, 4)) ->shiftRight(2) ->mask(0x3ffffff) )->toInt64(); $h2 = $h2->addInt32( ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 6, 4)) ->shiftRight(4) ->mask(0x3ffffff) )->toInt64(); $h3 = $h3->addInt32( ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 9, 4)) ->shiftRight(6) ->mask(0x3ffffff) )->toInt64(); $h4 = $h4->addInt32( ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 12, 4)) ->shiftRight(8) ->orInt32($hibit) )->toInt64(); / h = r / $d0 = $zero ->addInt64($h0->mulInt64($r0, 27)) ->addInt64($s4->mulInt64($h1, 27)) ->addInt64($s3->mulInt64($h2, 27)) ->addInt64($s2->mulInt64($h3, 27)) ->addInt64($s1->mulInt64($h4, 27)); $d1 = $zero ->addInt64($h0->mulInt64($r1, 27)) ->addInt64($h1->mulInt64($r0, 27)) ->addInt64($s4->mulInt64($h2, 27)) ->addInt64($s3->mulInt64($h3, 27)) ->addInt64($s2->mulInt64($h4, 27)); $d2 = $zero ->addInt64($h0->mulInt64($r2, 27)) ->addInt64($h1->mulInt64($r1, 27)) ->addInt64($h2->mulInt64($r0, 27)) ->addInt64($s4->mulInt64($h3, 27)) ->addInt64($s3->mulInt64($h4, 27)); $d3 = $zero ->addInt64($h0->mulInt64($r3, 27)) ->addInt64($h1->mulInt64($r2, 27)) ->addInt64($h2->mulInt64($r1, 27)) ->addInt64($h3->mulInt64($r0, 27)) ->addInt64($s4->mulInt64($h4, 27)); $d4 = $zero ->addInt64($h0->mulInt64($r4, 27)) ->addInt64($h1->mulInt64($r3, 27)) ->addInt64($h2->mulInt64($r2, 27)) ->addInt64($h3->mulInt64($r1, 27)) ->addInt64($h4->mulInt64($r0, 27)); /* (partial) h %= p / $c = $d0->shiftRight(26); $h0 = $d0->toInt32()->mask(0x3ffffff); $d1 = $d1->addInt64($c); $c = $d1->shiftRight(26); $h1 = $d1->toInt32()->mask(0x3ffffff); $d2 = $d2->addInt64($c); $c = $d2->shiftRight(26); $h2 = $d2->toInt32()->mask(0x3ffffff); $d3 = $d3->addInt64($c); $c = $d3->shiftRight(26); $h3 = $d3->toInt32()->mask(0x3ffffff); $d4 = $d4->addInt64($c); $c = $d4->shiftRight(26); $h4 = $d4->toInt32()->mask(0x3ffffff); $h0 = $h0->addInt32($c->toInt32()->mulInt(5, 3)); $c = $h0->shiftRight(26); $h0 = $h0->mask(0x3ffffff); $h1 = $h1->addInt32($c); // Chop off the left 32 bytes. $message = self::substr( $message, ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE ); $bytes -= ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE; } /* @var array<int, ParagonIE_Sodium_Core32_Int32> $h / $this->h = array($h0, $h1, $h2, $h3, $h4); return $this; } /* * @internal You should not use this directly from another application * * @return string * @throws SodiumException * @throws TypeError / public function finish() { / process the remaining block / if ($this->leftover) { $i = $this->leftover; $this->buffer[$i++] = 1; for (; $i < ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE; ++$i) { $this->buffer[$i] = 0; } $this->final = true; $this->blocks( self::substr( self::intArrayToString($this->buffer), 0, ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE ), $b = ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE ); } /* * @var ParagonIE_Sodium_Core32_Int32 $f * @var ParagonIE_Sodium_Core32_Int32 $g0 * @var ParagonIE_Sodium_Core32_Int32 $g1 * @var ParagonIE_Sodium_Core32_Int32 $g2 * @var ParagonIE_Sodium_Core32_Int32 $g3 * @var ParagonIE_Sodium_Core32_Int32 $g4 * @var ParagonIE_Sodium_Core32_Int32 $h0 * @var ParagonIE_Sodium_Core32_Int32 $h1 * @var ParagonIE_Sodium_Core32_Int32 $h2 * @var ParagonIE_Sodium_Core32_Int32 $h3 * @var ParagonIE_Sodium_Core32_Int32 $h4 / $h0 = $this->h[0]; $h1 = $this->h[1]; $h2 = $this->h[2]; $h3 = $this->h[3]; $h4 = $this->h[4]; $c = $h1->shiftRight(26); # $c = $h1 >> 26; $h1 = $h1->mask(0x3ffffff); # $h1 &= 0x3ffffff; $h2 = $h2->addInt32($c); # $h2 += $c; $c = $h2->shiftRight(26); # $c = $h2 >> 26; $h2 = $h2->mask(0x3ffffff); # $h2 &= 0x3ffffff; $h3 = $h3->addInt32($c); # $h3 += $c; $c = $h3->shiftRight(26); # $c = $h3 >> 26; $h3 = $h3->mask(0x3ffffff); # $h3 &= 0x3ffffff; $h4 = $h4->addInt32($c); # $h4 += $c; $c = $h4->shiftRight(26); # $c = $h4 >> 26; $h4 = $h4->mask(0x3ffffff); # $h4 &= 0x3ffffff; $h0 = $h0->addInt32($c->mulInt(5, 3)); # $h0 += self::mul($c, 5); $c = $h0->shiftRight(26); # $c = $h0 >> 26; $h0 = $h0->mask(0x3ffffff); # $h0 &= 0x3ffffff; $h1 = $h1->addInt32($c); # $h1 += $c; / compute h + -p / $g0 = $h0->addInt(5); $c = $g0->shiftRight(26); $g0 = $g0->mask(0x3ffffff); $g1 = $h1->addInt32($c); $c = $g1->shiftRight(26); $g1 = $g1->mask(0x3ffffff); $g2 = $h2->addInt32($c); $c = $g2->shiftRight(26); $g2 = $g2->mask(0x3ffffff); $g3 = $h3->addInt32($c); $c = $g3->shiftRight(26); $g3 = $g3->mask(0x3ffffff); $g4 = $h4->addInt32($c)->subInt(1 << 26); # $mask = ($g4 >> 31) - 1; / select h if h < p, or h + -p if h >= p / $mask = (int) (($g4->toInt() >> 31) + 1); $g0 = $g0->mask($mask); $g1 = $g1->mask($mask); $g2 = $g2->mask($mask); $g3 = $g3->mask($mask); $g4 = $g4->mask($mask); /* @var int $mask / $mask = ~$mask; $h0 = $h0->mask($mask)->orInt32($g0); $h1 = $h1->mask($mask)->orInt32($g1); $h2 = $h2->mask($mask)->orInt32($g2); $h3 = $h3->mask($mask)->orInt32($g3); $h4 = $h4->mask($mask)->orInt32($g4); / h = h % (2^128) / $h0 = $h0->orInt32($h1->shiftLeft(26)); $h1 = $h1->shiftRight(6)->orInt32($h2->shiftLeft(20)); $h2 = $h2->shiftRight(12)->orInt32($h3->shiftLeft(14)); $h3 = $h3->shiftRight(18)->orInt32($h4->shiftLeft(8)); / mac = (h + pad) % (2^128) */ $f = $h0->toInt64()->addInt64($this->pad[0]); $h0 = $f->toInt32(); $f = $h1->toInt64()->addInt64($this->pad[1])->addInt($h0->overflow); $h1 = $f->toInt32(); $f = $h2->toInt64()->addInt64($this->pad[2])->addInt($h1->overflow); $h2 = $f->toInt32(); $f = $h3->toInt64()->addInt64($this->pad[3])->addInt($h2->overflow); $h3 = $f->toInt32(); return $h0->toReverseString() . $h1->toReverseString() . $h2->toReverseString() . $h3->toReverseString(); 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