sodium_crypto_core_ristretto255_scalar_negate

(PHP 8 >= 8.1.0)

sodium_crypto_core_ristretto255_scalar_negateNegates a scalar value

说明

sodium_crypto_core_ristretto255_scalar_negate(string $s): string

Negates a scalar value. 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

s

Scalar value.

返回值

Returns a 32-byte random string.

范例

示例 #1 sodium_crypto_core_ristretto255_scalar_negate() example

<?php

$foo 
sodium_crypto_core_ristretto255_scalar_random();

$negate sodium_crypto_core_ristretto255_scalar_negate($foo);
$reNegate sodium_crypto_core_ristretto255_scalar_negate($negate);

var_dump(hash_equals($foo$reNegate));
?>

以上例程会输出:

bool(true) 

参见

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