sodium_crypto_core_ristretto255_scalar_negate

(PHP 8 >= 8.1.0)

sodium_crypto_core_ristretto255_scalar_negateNegates a scalar value

Description

sodium_crypto_core_ristretto255_scalar_negate(string $s): string

Negates a scalar value. Available as of libsodium 1.0.18.

Warning

This function is currently not documented; only its argument list is available.

Parameters

s

Scalar value.

Return Values

Returns a 32-byte random string.

Examples

Example #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));?>

The above example will output:

bool(true)

See Also