PHP - Manual: sodium_crypto_core_ristretto255_is_valid_point
2024-11-13
(PHP 8 >= 8.1.0)
sodium_crypto_core_ristretto255_is_valid_point — Determines if a point on the ristretto255 curve
$s
): boolDetermines if a point on the ristretto255 curve, in canonical form, on the main subgroup, and that the point doesn't have a small order. Available as of libsodium 1.0.18.
本函数还未编写文档,仅有参数列表。
s
An Elliptic-curve point.
Returns true
if s
is on the ristretto255 curve, false
otherwise.
示例 #1 sodium_crypto_core_ristretto255_is_valid_point() example
<?php
$foo = sodium_crypto_core_ristretto255_scalar_random();
$bar = sodium_crypto_scalarmult_ristretto255_base($foo);
var_dump(sodium_crypto_core_ristretto255_is_valid_point($bar));
?>
以上例程会输出:
bool(true)
官方地址:https://www.php.net/manual/en/function.sodium-crypto-core-ristretto255-is-valid-point.php