openssl_get_curve_names

(PHP 7 >= 7.1.0, PHP 8)

openssl_get_curve_namesGets list of available curve names for ECC

Descrizione

openssl_get_curve_names(): array|false

Gets the list of available curve names for use in Elliptic curve cryptography (ECC) for public/private key operations. The two most widely standardized/supported curves are prime256v1 (NIST P-256) and secp384r1 (NIST P-384).

Approximate Equivalancies of AES, RSA, DSA and ECC Keysizes
AES Symmetric Keysize (Bits) RSA and DSA Keysize (Bits) ECC Keysize (Bits)
80 1024 160
112 2048 224
128 3072 256
192 7680 384
256 15360 512
» NIST recommends using ECC curves with at least 256 bits.

Elenco dei parametri

Questa funzione non contiene parametri.

Valori restituiti

An array of available curve names, o false in caso di fallimento.

Esempi

Example #1 openssl_get_curve_names() example

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

Il precedente esempio visualizzerĂ  qualcosa simile a:

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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