ParagonIE_Sodium_Core32_Curve25519::fe_frombytes( string $s ): ParagonIE_Sodium_Core32_Curve25519_Fe

160    public static function fe_frombytes($s)161    {162        if (self::strlen($s) !== 32) {163            throw new RangeException('Expected a 32-byte string.');164        }165        /** @var ParagonIE_Sodium_Core32_Int32 $h0 */166        $h0 = ParagonIE_Sodium_Core32_Int32::fromInt(167            self::load_4($s)168        );169        /** @var ParagonIE_Sodium_Core32_Int32 $h1 */170        $h1 = ParagonIE_Sodium_Core32_Int32::fromInt(171            self::load_3(self::substr($s, 4, 3)) << 6172        );173        /** @var ParagonIE_Sodium_Core32_Int32 $h2 */174        $h2 = ParagonIE_Sodium_Core32_Int32::fromInt(175            self::load_3(self::substr($s, 7, 3)) << 5176        );177        /** @var ParagonIE_Sodium_Core32_Int32 $h3 */178        $h3 = ParagonIE_Sodium_Core32_Int32::fromInt(179            self::load_3(self::substr($s, 10, 3)) << 3180        );181        /** @var ParagonIE_Sodium_Core32_Int32 $h4 */182        $h4 = ParagonIE_Sodium_Core32_Int32::fromInt(183            self::load_3(self::substr($s, 13, 3)) << 2184        );185        /** @var ParagonIE_Sodium_Core32_Int32 $h5 */186        $h5 = ParagonIE_Sodium_Core32_Int32::fromInt(187            self::load_4(self::substr($s, 16, 4))188        );189        /** @var ParagonIE_Sodium_Core32_Int32 $h6 */190        $h6 = ParagonIE_Sodium_Core32_Int32::fromInt(191            self::load_3(self::substr($s, 20, 3)) << 7192        );193        /** @var ParagonIE_Sodium_Core32_Int32 $h7 */194        $h7 = ParagonIE_Sodium_Core32_Int32::fromInt(195            self::load_3(self::substr($s, 23, 3)) << 5196        );197        /** @var ParagonIE_Sodium_Core32_Int32 $h8 */198        $h8 = ParagonIE_Sodium_Core32_Int32::fromInt(199            self::load_3(self::substr($s, 26, 3)) << 4200        );201        /** @var ParagonIE_Sodium_Core32_Int32 $h9 */202        $h9 = ParagonIE_Sodium_Core32_Int32::fromInt(203            (self::load_3(self::substr($s, 29, 3)) & 8388607) << 2204        );205 206        $carry9 = $h9->addInt(1 << 24)->shiftRight(25);207        $h0 = $h0->addInt32($carry9->mulInt(19, 5));208        $h9 = $h9->subInt32($carry9->shiftLeft(25));209 210        $carry1 = $h1->addInt(1 << 24)->shiftRight(25);211        $h2 = $h2->addInt32($carry1);212        $h1 = $h1->subInt32($carry1->shiftLeft(25));213 214        $carry3 = $h3->addInt(1 << 24)->shiftRight(25);215        $h4 = $h4->addInt32($carry3);216        $h3 = $h3->subInt32($carry3->shiftLeft(25));217 218        $carry5 = $h5->addInt(1 << 24)->shiftRight(25);219        $h6 = $h6->addInt32($carry5);220        $h5 = $h5->subInt32($carry5->shiftLeft(25));221 222        $carry7 = $h7->addInt(1 << 24)->shiftRight(25);223        $h8 = $h8->addInt32($carry7);224        $h7 = $h7->subInt32($carry7->shiftLeft(25));225 226        $carry0 = $h0->addInt(1 << 25)->shiftRight(26);227        $h1 = $h1->addInt32($carry0);228        $h0 = $h0->subInt32($carry0->shiftLeft(26));229 230        $carry2 = $h2->addInt(1 << 25)->shiftRight(26);231        $h3 = $h3->addInt32($carry2);232        $h2 = $h2->subInt32($carry2->shiftLeft(26));233 234        $carry4 = $h4->addInt(1 << 25)->shiftRight(26);235        $h5 = $h5->addInt32($carry4);236        $h4 = $h4->subInt32($carry4->shiftLeft(26));237 238        $carry6 = $h6->addInt(1 << 25)->shiftRight(26);239        $h7 = $h7->addInt32($carry6);