sodium_crypto_core_ristretto255_scalar_invert

(PHP 8 >= 8.1.0)

sodium_crypto_core_ristretto255_scalar_invertInverts a scalar value

Description

sodium_crypto_core_ristretto255_scalar_invert(string $s): string

Inverts 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_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));?>

The above example will output:

bool(true) 

See Also