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openssl_get_curve_names

(PHP 7 >= 7.1.0)

openssl_get_curve_namesGets list of available curve names for ECC

Descrição

array openssl_get_curve_names ( void )

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.

Parâmetros

Esta função não possui parâmetros.

Valor Retornado

An array of available curve names.

Exemplos

Exemplo #1 openssl_get_curve_names() example

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

O exemplo acima irá imprimir algo similar 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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