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Description

Usage

$ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 = ParagonIE_Sodium_Core_Curve25519::ge_p2_dbl( $p );

Parameters

$p

( ParagonIE_Sodium_Core_Curve25519_Ge_P2 ) required –

Returns

ParagonIE_Sodium_Core_Curve25519_Ge_P1p1

Source

File name: wordpress/wp-includes/sodium_compat/src/Core/Curve25519.php
Lines:

    public static function ge_p2_dbl(ParagonIE_Sodium_Core_Curve25519_Ge_P2 $p)
    {
        $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P1p1();

        $r->X = self::fe_sq($p->X);
        $r->Z = self::fe_sq($p->Y);
        $r->T = self::fe_sq2($p->Z);
        $r->Y = self::fe_add($p->X, $p->Y);
        $t0   = self::fe_sq($r->Y);
        $r->Y = self::fe_add($r->Z, $r->X);
        $r->Z = self::fe_sub($r->Z, $r->X);
        $r->X = self::fe_sub($t0, $r->Y);
        $r->T = self::fe_sub($r->T, $r->Z);

        return $r;
    }
 

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