ParagonIE_Sodium_Core_Curve25519::fe_sq2( ParagonIE_Sodium_Core_Curve25519_Fe $f ): ParagonIE_Sodium_Core_Curve25519_Fe

750    public static function fe_sq2(ParagonIE_Sodium_Core_Curve25519_Fe $f)751    {752        $f = self::fe_normalize($f);753        $f0 = (int) $f[0];754        $f1 = (int) $f[1];755        $f2 = (int) $f[2];756        $f3 = (int) $f[3];757        $f4 = (int) $f[4];758        $f5 = (int) $f[5];759        $f6 = (int) $f[6];760        $f7 = (int) $f[7];761        $f8 = (int) $f[8];762        $f9 = (int) $f[9];763 764        $f0_2 = $f0 << 1;765        $f1_2 = $f1 << 1;766        $f2_2 = $f2 << 1;767        $f3_2 = $f3 << 1;768        $f4_2 = $f4 << 1;769        $f5_2 = $f5 << 1;770        $f6_2 = $f6 << 1;771        $f7_2 = $f7 << 1;772        $f5_38 = self::mul($f5, 38, 6); /* 1.959375*2^30 */773        $f6_19 = self::mul($f6, 19, 5); /* 1.959375*2^30 */774        $f7_38 = self::mul($f7, 38, 6); /* 1.959375*2^30 */775        $f8_19 = self::mul($f8, 19, 5); /* 1.959375*2^30 */776        $f9_38 = self::mul($f9, 38, 6); /* 1.959375*2^30 */777        $f0f0 = self::mul($f0, $f0, 24);778        $f0f1_2 = self::mul($f0_2, $f1, 24);779        $f0f2_2 = self::mul($f0_2, $f2, 24);780        $f0f3_2 = self::mul($f0_2, $f3, 24);781        $f0f4_2 = self::mul($f0_2, $f4, 24);782        $f0f5_2 = self::mul($f0_2, $f5, 24);783        $f0f6_2 = self::mul($f0_2, $f6, 24);784        $f0f7_2 = self::mul($f0_2, $f7, 24);785        $f0f8_2 = self::mul($f0_2, $f8, 24);786        $f0f9_2 = self::mul($f0_2, $f9, 24);787        $f1f1_2 = self::mul($f1_2,  $f1, 24);788        $f1f2_2 = self::mul($f1_2,  $f2, 24);789        $f1f3_4 = self::mul($f1_2,  $f3_2, 24);790        $f1f4_2 = self::mul($f1_2,  $f4, 24);791        $f1f5_4 = self::mul($f1_2,  $f5_2, 24);792        $f1f6_2 = self::mul($f1_2,  $f6, 24);793        $f1f7_4 = self::mul($f1_2,  $f7_2, 24);794        $f1f8_2 = self::mul($f1_2,  $f8, 24);795        $f1f9_76 = self::mul($f9_38, $f1_2, 24);796        $f2f2 = self::mul($f2,  $f2, 24);797        $f2f3_2 = self::mul($f2_2,  $f3, 24);798        $f2f4_2 = self::mul($f2_2,  $f4, 24);799        $f2f5_2 = self::mul($f2_2,  $f5, 24);800        $f2f6_2 = self::mul($f2_2,  $f6, 24);801        $f2f7_2 = self::mul($f2_2,  $f7, 24);802        $f2f8_38 = self::mul($f8_19, $f2_2, 25);803        $f2f9_38 = self::mul($f9_38, $f2, 24);804        $f3f3_2 = self::mul($f3_2,  $f3, 24);805        $f3f4_2 = self::mul($f3_2,  $f4, 24);806        $f3f5_4 = self::mul($f3_2,  $f5_2, 24);807        $f3f6_2 = self::mul($f3_2,  $f6, 24);808        $f3f7_76 = self::mul($f7_38, $f3_2, 24);809        $f3f8_38 = self::mul($f8_19, $f3_2, 24);810        $f3f9_76 = self::mul($f9_38, $f3_2, 24);811        $f4f4 = self::mul($f4,  $f4, 24);812        $f4f5_2 = self::mul($f4_2,  $f5, 24);813        $f4f6_38 = self::mul($f6_19, $f4_2, 25);814        $f4f7_38 = self::mul($f7_38, $f4, 24);815        $f4f8_38 = self::mul($f8_19, $f4_2, 25);816        $f4f9_38 = self::mul($f9_38, $f4, 24);817        $f5f5_38 = self::mul($f5_38, $f5, 24);818        $f5f6_38 = self::mul($f6_19, $f5_2, 24);819        $f5f7_76 = self::mul($f7_38, $f5_2, 24);820        $f5f8_38 = self::mul($f8_19, $f5_2, 24);821        $f5f9_76 = self::mul($f9_38, $f5_2, 24);822        $f6f6_19 = self::mul($f6_19, $f6, 24);823        $f6f7_38 = self::mul($f7_38, $f6, 24);824        $f6f8_38 = self::mul($f8_19, $f6_2, 25);825        $f6f9_38 = self::mul($f9_38, $f6, 24);826        $f7f7_38 = self::mul($f7_38, $f7, 24);827        $f7f8_38 = self::mul($f8_19, $f7_2, 24);828        $f7f9_76 = self::mul($f9_38, $f7_2, 24);829        $f8f8_19 = self::mul($f8_19, $f8, 24);