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PHP - Manual: sodium_crypto_core_ristretto255_sub

2024-12-20

sodium_crypto_core_ristretto255_sub

(PHP 8 >= 8.1.0)

sodium_crypto_core_ristretto255_subSubtracts an element

说明

sodium_crypto_core_ristretto255_sub(string $p, string $q): string

Subtracts an element q from p. Available as of libsodium 1.0.18.

警告

本函数还未编写文档,仅有参数列表。

参数

p

An element.

q

An element.

返回值

Returns a 32-byte random string.

范例

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)

参见

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官方地址:https://www.php.net/manual/en/function.sodium-crypto-core-ristretto255-sub.php

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