May be useful for cyphers execution speed.
<?php
const TEST_COUNT = 100000;
const SOURCE = 'Note that HTML tags are not allowed in the posts, but the note formatting is preserved.';
const KEY = "password";
function TESTER( $testing_function, $argument )
{
$t = microtime(true);
for ($test_iterator = 0; $test_iterator < TEST_COUNT; $test_iterator++) {
$testing_function( $argument );
}
return round(microtime(true) - $t, 4);
}
$crypt = function($cipher) {
$ivlen = openssl_cipher_iv_length($cipher);
$iv = openssl_random_pseudo_bytes($ivlen);
openssl_encrypt(SOURCE, $cipher, KEY, $options=0, $iv);
};
$methods = openssl_get_cipher_methods(false);
array_splice( $methods, 0, count($methods) / 2);
$timings = array();
foreach ($methods as $cypher) {
$time = TESTER( $crypt, $cypher );
$timings[ $cypher ] = $time;
echo str_pad($cypher, 40, ' ', STR_PAD_LEFT), " have time ", str_pad($time, 8, STR_PAD_LEFT), ' seconds. ', PHP_EOL;
}
uasort($timings, function($a, $b){
return $a <=> $b;
});
$min_time = round(reset($timings) / TEST_COUNT, 7);
$min_cypher = key($timings);
$max_time = round(end($timings) / TEST_COUNT, 7);
$max_cypher = key($timings);
echo '-------------', PHP_EOL;
echo "Total tests: ", count($timings), PHP_EOL;
echo "Max timing : {$max_time} seconds for `{$max_cypher}` algorithm.", PHP_EOL;
echo "Min timing : {$min_time} seconds for `{$min_cypher}` algorithm.", PHP_EOL;
echo 'Details: ', PHP_EOL;
foreach ($timings as $m => $t) {
echo '- ', str_pad($t, 8, STR_PAD_LEFT), " seconds for `{$m}`", PHP_EOL;
}
echo PHP_EOL;
openssl_get_cipher_methods
(PHP 5 >= 5.3.0, PHP 7)
openssl_get_cipher_methods — Gets available cipher methods
설명
array openssl_get_cipher_methods
([ bool
$aliases = false
] )Gets a list of available cipher methods.
반환값
An array of available cipher methods.
예제
Example #1 openssl_get_cipher_methods() example
Shows how the available ciphers might look, and also which aliases might be available.
<?php
$ciphers = openssl_get_cipher_methods();
$ciphers_and_aliases = openssl_get_cipher_methods(true);
$cipher_aliases = array_diff($ciphers_and_aliases, $ciphers);
print_r($ciphers);
print_r($cipher_aliases);
?>
위 예제의 출력 예시:
Array
(
[0] => AES-128-CBC
[1] => AES-128-CFB
[2] => AES-128-CFB1
[3] => AES-128-CFB8
[4] => AES-128-ECB
[5] => AES-128-OFB
[6] => AES-192-CBC
[7] => AES-192-CFB
[8] => AES-192-CFB1
[9] => AES-192-CFB8
[10] => AES-192-ECB
[11] => AES-192-OFB
[12] => AES-256-CBC
[13] => AES-256-CFB
[14] => AES-256-CFB1
[15] => AES-256-CFB8
[16] => AES-256-ECB
[17] => AES-256-OFB
[18] => BF-CBC
[19] => BF-CFB
[20] => BF-ECB
[21] => BF-OFB
[22] => CAST5-CBC
[23] => CAST5-CFB
[24] => CAST5-ECB
[25] => CAST5-OFB
[26] => DES-CBC
[27] => DES-CFB
[28] => DES-CFB1
[29] => DES-CFB8
[30] => DES-ECB
[31] => DES-EDE
[32] => DES-EDE-CBC
[33] => DES-EDE-CFB
[34] => DES-EDE-OFB
[35] => DES-EDE3
[36] => DES-EDE3-CBC
[37] => DES-EDE3-CFB
[38] => DES-EDE3-OFB
[39] => DES-OFB
[40] => DESX-CBC
[41] => IDEA-CBC
[42] => IDEA-CFB
[43] => IDEA-ECB
[44] => IDEA-OFB
[45] => RC2-40-CBC
[46] => RC2-64-CBC
[47] => RC2-CBC
[48] => RC2-CFB
[49] => RC2-ECB
[50] => RC2-OFB
[51] => RC4
[52] => RC4-40
[53] => aes-128-cbc
[54] => aes-128-cfb
[55] => aes-128-cfb1
[56] => aes-128-cfb8
[57] => aes-128-ecb
[58] => aes-128-ofb
[59] => aes-192-cbc
[60] => aes-192-cfb
[61] => aes-192-cfb1
[62] => aes-192-cfb8
[63] => aes-192-ecb
[64] => aes-192-ofb
[65] => aes-256-cbc
[66] => aes-256-cfb
[67] => aes-256-cfb1
[68] => aes-256-cfb8
[69] => aes-256-ecb
[70] => aes-256-ofb
[71] => bf-cbc
[72] => bf-cfb
[73] => bf-ecb
[74] => bf-ofb
[75] => cast5-cbc
[76] => cast5-cfb
[77] => cast5-ecb
[78] => cast5-ofb
[79] => des-cbc
[80] => des-cfb
[81] => des-cfb1
[82] => des-cfb8
[83] => des-ecb
[84] => des-ede
[85] => des-ede-cbc
[86] => des-ede-cfb
[87] => des-ede-ofb
[88] => des-ede3
[89] => des-ede3-cbc
[90] => des-ede3-cfb
[91] => des-ede3-ofb
[92] => des-ofb
[93] => desx-cbc
[94] => idea-cbc
[95] => idea-cfb
[96] => idea-ecb
[97] => idea-ofb
[98] => rc2-40-cbc
[99] => rc2-64-cbc
[100] => rc2-cbc
[101] => rc2-cfb
[102] => rc2-ecb
[103] => rc2-ofb
[104] => rc4
[105] => rc4-40
)
Array
(
[18] => AES128
[19] => AES192
[20] => AES256
[21] => BF
[26] => CAST
[27] => CAST-cbc
[32] => DES
[47] => DES3
[48] => DESX
[50] => IDEA
[55] => RC2
[82] => aes128
[83] => aes192
[84] => aes256
[85] => bf
[90] => blowfish
[91] => cast
[92] => cast-cbc
[97] => des
[112] => des3
[113] => desx
[115] => idea
[120] => rc2
)
add a note
User Contributed Notes 1 note
karel dot wintersky at gmail dot com ¶
7 years ago
