PHP - Manual: sodium_crypto_core_ristretto255_sub
2024-11-13
(PHP 8 >= 8.1.0)
sodium_crypto_core_ristretto255_sub — Subtracts an element
$p
, string $q
): string
Subtracts an element q
from p
.
Available as of libsodium 1.0.18.
本函数还未编写文档,仅有参数列表。
p
An element.
q
An element.
Returns a 32-byte random string.
示例 #1 sodium_crypto_core_ristretto255_sub() example
<?php
$foo = sodium_crypto_core_ristretto255_random();
$bar = sodium_crypto_core_ristretto255_random();
$value = sodium_crypto_core_ristretto255_add($foo, $bar);
$value = sodium_crypto_core_ristretto255_sub($value, $bar);
var_dump(hash_equals($foo, $value));
?>
以上例程会输出:
bool(true)
官方地址:https://www.php.net/manual/en/function.sodium-crypto-core-ristretto255-sub.php