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Summery Summery
Convert a group element to a byte string.
Syntax Syntax
Parameters Parameters
- $h
-
(Required)
Return Return
(string)
Source Source
File: wp-includes/sodium_compat/src/Core32/Curve25519.php
public static function ge_tobytes(ParagonIE_Sodium_Core32_Curve25519_Ge_P2 $h)
{
$recip = self::fe_invert($h->Z);
$x = self::fe_mul($h->X, $recip);
$y = self::fe_mul($h->Y, $recip);
$s = self::fe_tobytes($y);
$s[31] = self::intToChr(
self::chrToInt($s[31]) ^ (self::fe_isnegative($x) << 7)
);
return $s;
}