Subtracts an element
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    sodium_crypto_core_ristretto255_sub

    (PHP 8 >= 8.1.0)

    sodium_crypto_core_ristretto255_sub — Subtracts an element

    Description

    sodium_crypto_core_ristretto255_sub(string $p, string $q): string

    Subtracts an element q from p. Available as of libsodium 1.0.18.

    Warning

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

    Parameters

    p

    An element.

    q

    An element.

    Return Values

    Returns a 32-byte random string.

    Examples

    Example #1 sodium_crypto_core_ristretto255_sub() example

    <?php$foo = sodium_crypto_core_ristretto255_random();$bar = sodium_crypto_core_ristretto255_random();$value = sodium_crypto_core_ristretto255_add($foo, $bar);$value = sodium_crypto_core_ristretto255_sub($value, $bar);var_dump(hash_equals($foo, $value));?>

    The above example will output:

    bool(true)

    See Also