ParagonIE_Sodium_Core32_Poly1305_State::blocks( string $message, int $bytes ): self

186    public function blocks($message, $bytes)187    {188        if (self::strlen($message) < 16) {189            $message = str_pad($message, 16, "\x00", STR_PAD_RIGHT);190        }191        $hibit = ParagonIE_Sodium_Core32_Int32::fromInt((int) ($this->final ? 0 : 1 << 24)); /* 1 << 128 */192        $hibit->setUnsignedInt(true);193        $zero = new ParagonIE_Sodium_Core32_Int64(array(0, 0, 0, 0), true);194        /**195         * @var ParagonIE_Sodium_Core32_Int64 $d0196         * @var ParagonIE_Sodium_Core32_Int64 $d1197         * @var ParagonIE_Sodium_Core32_Int64 $d2198         * @var ParagonIE_Sodium_Core32_Int64 $d3199         * @var ParagonIE_Sodium_Core32_Int64 $d4200         * @var ParagonIE_Sodium_Core32_Int64 $r0201         * @var ParagonIE_Sodium_Core32_Int64 $r1202         * @var ParagonIE_Sodium_Core32_Int64 $r2203         * @var ParagonIE_Sodium_Core32_Int64 $r3204         * @var ParagonIE_Sodium_Core32_Int64 $r4205         *206         * @var ParagonIE_Sodium_Core32_Int32 $h0207         * @var ParagonIE_Sodium_Core32_Int32 $h1208         * @var ParagonIE_Sodium_Core32_Int32 $h2209         * @var ParagonIE_Sodium_Core32_Int32 $h3210         * @var ParagonIE_Sodium_Core32_Int32 $h4211         */212        $r0 = $this->r[0]->toInt64();213        $r1 = $this->r[1]->toInt64();214        $r2 = $this->r[2]->toInt64();215        $r3 = $this->r[3]->toInt64();216        $r4 = $this->r[4]->toInt64();217 218        $s1 = $r1->toInt64()->mulInt(5, 3);219        $s2 = $r2->toInt64()->mulInt(5, 3);220        $s3 = $r3->toInt64()->mulInt(5, 3);221        $s4 = $r4->toInt64()->mulInt(5, 3);222 223        $h0 = $this->h[0];224        $h1 = $this->h[1];225        $h2 = $this->h[2];226        $h3 = $this->h[3];227        $h4 = $this->h[4];228 229        while ($bytes >= ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE) {230            /* h += m[i] */231            $h0 = $h0->addInt32(232                ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 0, 4))233                    ->mask(0x3ffffff)234            )->toInt64();235            $h1 = $h1->addInt32(236                ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 3, 4))237                    ->shiftRight(2)238                    ->mask(0x3ffffff)239            )->toInt64();240            $h2 = $h2->addInt32(241                ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 6, 4))242                    ->shiftRight(4)243                    ->mask(0x3ffffff)244            )->toInt64();245            $h3 = $h3->addInt32(246                ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 9, 4))247                    ->shiftRight(6)248                    ->mask(0x3ffffff)249            )->toInt64();250            $h4 = $h4->addInt32(251                ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 12, 4))252                    ->shiftRight(8)253                    ->orInt32($hibit)254            )->toInt64();255 256            /* h *= r */257            $d0 = $zero258                ->addInt64($h0->mulInt64($r0, 27))259                ->addInt64($s4->mulInt64($h1, 27))260                ->addInt64($s3->mulInt64($h2, 27))261                ->addInt64($s2->mulInt64($h3, 27))262                ->addInt64($s1->mulInt64($h4, 27));263 264            $d1 = $zero265                ->addInt64($h0->mulInt64($r1, 27))