(PHP 7 >= 7.1.0, PHP 8)
openssl_get_curve_names — Obtiene la lista de nombres de curvas disponibles para ECC
Obtiene la lista de nombres de curvas disponibles para su uso en la criptografía de curva elíptica (ECC) para las operaciones de clave pública/privada. Las dos curvas más ampliamente estandarizadas/soportadas son prime256v1 (NIST P-256) y secp384r1 (NIST P-384).
| Tamaño de clave simétrica AES (Bits) | Tamaño de clave RSA y DSA (Bits) | Tamaño de clave ECC (Bits) |
|---|---|---|
| 80 | 1024 | 160 |
| 112 | 2048 | 224 |
| 128 | 3072 | 256 |
| 192 | 7680 | 384 |
| 256 | 15360 | 512 |
Esta función no tiene parámetros.
Ejemplo #1 Ejemplo con openssl_get_curve_names()
<?php
$curve_names = openssl_get_curve_names();
print_r($curve_names);
?>El resultado del ejemplo sería algo similar 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
)