PHP 8.0.26 Released!

sodium_crypto_core_ristretto255_is_valid_point

(PHP 8 >= 8.1.0)

sodium_crypto_core_ristretto255_is_valid_pointDetermines if a point on the ristretto255 curve

Description

sodium_crypto_core_ristretto255_is_valid_point(string $s): bool

Determines if a point on the ristretto255 curve, in canonical form, on the main subgroup, and that the point doesn't have a small order. Available as of libsodium 1.0.18.

Avertissement

Cette fonction est actuellement non documentée ; seule la liste des arguments est disponible.

Liste de paramètres

s

An Elliptic-curve point.

Valeurs de retour

Returns true if s is on the ristretto255 curve, false otherwise.

Exemples

Exemple #1 sodium_crypto_core_ristretto255_is_valid_point() example

<?php

$foo 
sodium_crypto_core_ristretto255_scalar_random();
$bar sodium_crypto_scalarmult_ristretto255_base($foo);

var_dump(sodium_crypto_core_ristretto255_is_valid_point($bar));
?>

L'exemple ci-dessus va afficher :

bool(true) 

Voir aussi

add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top