ParagonIE_Sodium_Core32_Poly1305_State::blocks() public WP 1.0
{} Это метод класса: ParagonIE_Sodium_Core32_Poly1305_State{}
Хуков нет.
Возвращает
self.
Использование
$ParagonIE_Sodium_Core32_Poly1305_State = new ParagonIE_Sodium_Core32_Poly1305_State(); $ParagonIE_Sodium_Core32_Poly1305_State->blocks( $message, $bytes );
- $message(строка) (обязательный)
- -
- $bytes(число) (обязательный)
- -
Код ParagonIE_Sodium_Core32_Poly1305_State::blocks() ParagonIE Sodium Core32 Poly1305 State::blocks WP 5.6.2
<?php
public function blocks($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($r0, 25))
->addInt64($s4->mulInt64($h1, 26))
->addInt64($s3->mulInt64($h2, 26))
->addInt64($s2->mulInt64($h3, 26))
->addInt64($s1->mulInt64($h4, 26));
$d1 = $zero
->addInt64($h0->mulInt64($r1, 25))
->addInt64($h1->mulInt64($r0, 25))
->addInt64($s4->mulInt64($h2, 26))
->addInt64($s3->mulInt64($h3, 26))
->addInt64($s2->mulInt64($h4, 26));
$d2 = $zero
->addInt64($h0->mulInt64($r2, 25))
->addInt64($h1->mulInt64($r1, 25))
->addInt64($h2->mulInt64($r0, 25))
->addInt64($s4->mulInt64($h3, 26))
->addInt64($s3->mulInt64($h4, 26));
$d3 = $zero
->addInt64($h0->mulInt64($r3, 25))
->addInt64($h1->mulInt64($r2, 25))
->addInt64($h2->mulInt64($r1, 25))
->addInt64($h3->mulInt64($r0, 25))
->addInt64($s4->mulInt64($h4, 26));
$d4 = $zero
->addInt64($h0->mulInt64($r4, 25))
->addInt64($h1->mulInt64($r3, 25))
->addInt64($h2->mulInt64($r2, 25))
->addInt64($h3->mulInt64($r1, 25))
->addInt64($h4->mulInt64($r0, 25));
/* (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;
}