openssl_get_curve_names

(PHP 7 >= 7.1.0, PHP 8)

openssl_get_curve_names — Récupère la liste des noms de courbes disponibles pour ECC

Description

openssl_get_curve_names(): array|false

Récupère la liste des noms de courbes disponibles à utilisation dans la cryptographie à courbe elliptique (ECC) pour les opérations clé publique / privée. Les deux courbes les plus largement standardisées / supportées sont prime256v1 (NIST P-256) et secp384r1 (NIST P-384).

**Équivalences approximatives des taille de clés de AES, RSA, DSA et ECC**
Taille de clé symétriques AES (Bits)	Taille de clé RSA et DSA (Bits)	Taille de clé ECC (Bits)
80	1024	160
112	2048	224
128	3072	256
192	7680	384
256	15360	512

» NIST recommande d'utiliser des courbes ECC qui ont au moins 256 bits.

Liste de paramètres

Cette fonction ne contient aucun paramètre.

Valeurs de retour

Un tableau des noms de courbes disponibles, ou false si une erreur survient.

Exemples

Exemple #1 Exemple avec openssl_get_curve_names()

<?php
$curve_names = openssl_get_curve_names();
print_r($curve_names);
?>

Résultat de l'exemple ci-dessus est similaire à :

Array
(
    [0] => secp112r1
    [1] => secp112r2
    [2] => secp128r1
    [3] => secp128r2
    [4] => secp160k1
    [5] => secp160r1
    [6] => secp160r2
    [7] => secp192k1
    [8] => secp224k1
    [9] => secp224r1
    [10] => secp256k1
    [11] => secp384r1
    [12] => secp521r1
    [13] => prime192v1
    [14] => prime192v2
    [15] => prime192v3
    [16] => prime239v1
    [17] => prime239v2
    [18] => prime239v3
    [19] => prime256v1
    [20] => sect113r1
    [21] => sect113r2
    [22] => sect131r1
    [23] => sect131r2
    [24] => sect163k1
    [25] => sect163r1
    [26] => sect163r2
    [27] => sect193r1
    [28] => sect193r2
    [29] => sect233k1
    [30] => sect233r1
    [31] => sect239k1
    [32] => sect283k1
    [33] => sect283r1
    [34] => sect409k1
    [35] => sect409r1
    [36] => sect571k1
    [37] => sect571r1
    [38] => c2pnb163v1
    [39] => c2pnb163v2
    [40] => c2pnb163v3
    [41] => c2pnb176v1
    [42] => c2tnb191v1
    [43] => c2tnb191v2
    [44] => c2tnb191v3
    [45] => c2pnb208w1
    [46] => c2tnb239v1
    [47] => c2tnb239v2
    [48] => c2tnb239v3
    [49] => c2pnb272w1
    [50] => c2pnb304w1
    [51] => c2tnb359v1
    [52] => c2pnb368w1
    [53] => c2tnb431r1
    [54] => wap-wsg-idm-ecid-wtls1
    [55] => wap-wsg-idm-ecid-wtls3
    [56] => wap-wsg-idm-ecid-wtls4
    [57] => wap-wsg-idm-ecid-wtls5
    [58] => wap-wsg-idm-ecid-wtls6
    [59] => wap-wsg-idm-ecid-wtls7
    [60] => wap-wsg-idm-ecid-wtls8
    [61] => wap-wsg-idm-ecid-wtls9
    [62] => wap-wsg-idm-ecid-wtls10
    [63] => wap-wsg-idm-ecid-wtls11
    [64] => wap-wsg-idm-ecid-wtls12
    [65] => Oakley-EC2N-3
    [66] => Oakley-EC2N-4
    [67] => brainpoolP160r1
    [68] => brainpoolP160t1
    [69] => brainpoolP192r1
    [70] => brainpoolP192t1
    [71] => brainpoolP224r1
    [72] => brainpoolP224t1
    [73] => brainpoolP256r1
    [74] => brainpoolP256t1
    [75] => brainpoolP320r1
    [76] => brainpoolP320t1
    [77] => brainpoolP384r1
    [78] => brainpoolP384t1
    [79] => brainpoolP512r1
    [80] => brainpoolP512t1
)

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