sodium_crypto_core_ristretto255_scalar_invert

sodium_crypto_core_ristretto255_scalar_invert

Inverts a scalar value

string **sodium_crypto_core_ristretto255_scalar_invert** string $s

Inverts a scalar value. Available as of libsodium 1.0.18.

sScalar value.

Returns a 32-byte random string.

Voorbeeld: 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));
?>

bool(true)

sodium_crypto_core_ristretto255_scalar_random