ParagonIE_Sodium_Core_Curve25519::fe_sub() public WP 1.0
Subtract two field elements.
h = f - g
Preconditions:
|f| bounded by 1.12^25,1.12^24,1.12^25,1.12^24,etc.
|g| bounded by 1.12^25,1.12^24,1.12^25,1.12^24,etc.
Postconditions:
|h| bounded by 1.12^26,1.12^25,1.12^26,1.12^25,etc.
{} Это метод класса: ParagonIE_Sodium_Core_Curve25519{}
Хуков нет.
Возвращает
ParagonIE_Sodium_Core_Curve25519_Fe
. Ничего.
Использование
$result = ParagonIE_Sodium_Core_Curve25519::fe_sub( $f, $g );
- $f(ParagonIE_Sodium_Core_Curve25519_Fe) (обязательный)
- -
- $g(ParagonIE_Sodium_Core_Curve25519_Fe) (обязательный)
- -
Код ParagonIE_Sodium_Core_Curve25519::fe_sub() ParagonIE Sodium Core Curve25519::fe sub WP 5.7.1
public static function fe_sub(ParagonIE_Sodium_Core_Curve25519_Fe $f, ParagonIE_Sodium_Core_Curve25519_Fe $g)
{
return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
array(
(int) ($f[0] - $g[0]),
(int) ($f[1] - $g[1]),
(int) ($f[2] - $g[2]),
(int) ($f[3] - $g[3]),
(int) ($f[4] - $g[4]),
(int) ($f[5] - $g[5]),
(int) ($f[6] - $g[6]),
(int) ($f[7] - $g[7]),
(int) ($f[8] - $g[8]),
(int) ($f[9] - $g[9])
)
);
}