GoLang openssl_get_curve_names

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PHP openssl_get_curve_names

PHP original manual for openssl_get_curve_names [ show | php.net ]

openssl_get_curve_names

(PHP 7 >= 7.1.0)

openssl_get_curve_names — Gets list of available curve names for ECC

Description

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.

Parameters

This function has no parameters.

Return Values

An array of available curve names.

Examples

Example #1 openssl_get_curve_names() example


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

The above example will output something similar to:

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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