ParagonIE_Sodium_Core32_Curve25519::fe_neg() public WP 1.0

Get the negative values for each piece of the field element.

h = -f

{} It's a method of the class: ParagonIE_Sodium_Core32_Curve25519{}

No Hooks.

Return

ParagonIE_Sodium_Core32_Curve25519_Fe.

Usage

$result = ParagonIE_Sodium_Core32_Curve25519::fe_neg( $f );

$f(ParagonIE_Sodium_Core32_Curve25519_Fe) (required)

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Code of ParagonIE_Sodium_Core32_Curve25519::fe_neg() ParagonIE Sodium Core32 Curve25519::fe neg ^{WP 5.8.2}

public static function fe_neg(ParagonIE_Sodium_Core32_Curve25519_Fe $f)
{
    $h = new ParagonIE_Sodium_Core32_Curve25519_Fe();
    for ($i = 0; $i < 10; ++$i) {
        $h[$i] = $h[$i]->subInt32($f[$i]);
    }
    return $h;
}