sodium_crypto_core_ristretto255_scalar_negate
(PHP 8 >= 8.1.0)
sodium_crypto_core_ristretto255_scalar_negate — Negates a scalar value
说明
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.
示例
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));
?>以上示例会输出：
bool(true)
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