sodium_crypto_core_ristretto255_scalar_invert

(PHP 8 >= 8.1.0)

sodium_crypto_core_ristretto255_scalar_invert — Inverts a scalar value

說明

sodium_crypto_core_ristretto255_scalar_invert(string $s): string

Inverts a scalar value. Available as of libsodium 1.0.18.

警告

本函數(shù)還未編寫文檔，僅有參數(shù)列表。

參數(shù)

s

Scalar value.

返回值

Returns a 32-byte random string.

范例

示例 #1 sodium_crypto_core_ristretto255_scalar_invert() example

<?php

$foo = sodium_crypto_core_ristretto255_scalar_random();

$inverted = sodium_crypto_core_ristretto255_scalar_invert($foo);
$reInverted = sodium_crypto_core_ristretto255_scalar_invert($inverted);

var_dump(hash_equals($foo, $reInverted));
?>

以上例程會輸出：

bool(true)

參見