ParagonIE_Sodium_Core_Curve25519::fe_mul( ParagonIE_Sodium_Core_Curve25519_Fe $f, ParagonIE_Sodium_Core_Curve25519_Fe $g ): ParagonIE_Sodium_Core_Curve25519_Fe

341    public static function fe_mul(342        ParagonIE_Sodium_Core_Curve25519_Fe $f,343        ParagonIE_Sodium_Core_Curve25519_Fe $g344    ) {345        // Ensure limbs aren't oversized.346        $f = self::fe_normalize($f);347        $g = self::fe_normalize($g);348        $f0 = $f[0];349        $f1 = $f[1];350        $f2 = $f[2];351        $f3 = $f[3];352        $f4 = $f[4];353        $f5 = $f[5];354        $f6 = $f[6];355        $f7 = $f[7];356        $f8 = $f[8];357        $f9 = $f[9];358        $g0 = $g[0];359        $g1 = $g[1];360        $g2 = $g[2];361        $g3 = $g[3];362        $g4 = $g[4];363        $g5 = $g[5];364        $g6 = $g[6];365        $g7 = $g[7];366        $g8 = $g[8];367        $g9 = $g[9];368        $g1_19 = self::mul($g1, 19, 5);369        $g2_19 = self::mul($g2, 19, 5);370        $g3_19 = self::mul($g3, 19, 5);371        $g4_19 = self::mul($g4, 19, 5);372        $g5_19 = self::mul($g5, 19, 5);373        $g6_19 = self::mul($g6, 19, 5);374        $g7_19 = self::mul($g7, 19, 5);375        $g8_19 = self::mul($g8, 19, 5);376        $g9_19 = self::mul($g9, 19, 5);377        $f1_2 = $f1 << 1;378        $f3_2 = $f3 << 1;379        $f5_2 = $f5 << 1;380        $f7_2 = $f7 << 1;381        $f9_2 = $f9 << 1;382        $f0g0    = self::mul($f0,    $g0, 26);383        $f0g1    = self::mul($f0,    $g1, 25);384        $f0g2    = self::mul($f0,    $g2, 26);385        $f0g3    = self::mul($f0,    $g3, 25);386        $f0g4    = self::mul($f0,    $g4, 26);387        $f0g5    = self::mul($f0,    $g5, 25);388        $f0g6    = self::mul($f0,    $g6, 26);389        $f0g7    = self::mul($f0,    $g7, 25);390        $f0g8    = self::mul($f0,    $g8, 26);391        $f0g9    = self::mul($f0,    $g9, 26);392        $f1g0    = self::mul($f1,    $g0, 26);393        $f1g1_2  = self::mul($f1_2,  $g1, 25);394        $f1g2    = self::mul($f1,    $g2, 26);395        $f1g3_2  = self::mul($f1_2,  $g3, 25);396        $f1g4    = self::mul($f1,    $g4, 26);397        $f1g5_2  = self::mul($f1_2,  $g5, 25);398        $f1g6    = self::mul($f1,    $g6, 26);399        $f1g7_2  = self::mul($f1_2,  $g7, 25);400        $f1g8    = self::mul($f1,    $g8, 26);401        $f1g9_38 = self::mul($g9_19, $f1_2, 26);402        $f2g0    = self::mul($f2,    $g0, 26);403        $f2g1    = self::mul($f2,    $g1, 25);404        $f2g2    = self::mul($f2,    $g2, 26);405        $f2g3    = self::mul($f2,    $g3, 25);406        $f2g4    = self::mul($f2,    $g4, 26);407        $f2g5    = self::mul($f2,    $g5, 25);408        $f2g6    = self::mul($f2,    $g6, 26);409        $f2g7    = self::mul($f2,    $g7, 25);410        $f2g8_19 = self::mul($g8_19, $f2, 26);411        $f2g9_19 = self::mul($g9_19, $f2, 26);412        $f3g0    = self::mul($f3,    $g0, 26);413        $f3g1_2  = self::mul($f3_2,  $g1, 25);414        $f3g2    = self::mul($f3,    $g2, 26);415        $f3g3_2  = self::mul($f3_2,  $g3, 25);416        $f3g4    = self::mul($f3,    $g4, 26);417        $f3g5_2  = self::mul($f3_2,  $g5, 25);418        $f3g6    = self::mul($f3,    $g6, 26);419        $f3g7_38 = self::mul($g7_19, $f3_2, 26);420        $f3g8_19 = self::mul($g8_19, $f3, 25);