openssl_get_cipher_methods 获取可用的加密算法
发表日期:2021-07-01 08:55:21 | 来源: | | 浏览(928) 分类:OpenSSL 函数
openssl_get_cipher_methods
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
openssl_get_cipher_methods — 获取可用的加密算法
说明
openssl_get_cipher_methods(bool
$aliases
= false
): array获取可用的加密算法的列表。
参数
-
aliases
-
如果密码别名应该包含在返回的array中,则设置为
true
.
返回值
包含可用加密算法的array。 请注意:在 OpenSSL 1.1.1 版本之前,返回加密算法的拼法大小写都有; 从 OpenSSL 1.1.1 开始,统一只返回小写的形式。
范例
示例 #1 openssl_get_cipher_methods() example
展示了哪些加密算法能被找到,哪些别名可用。
<?php $ciphers = openssl_get_cipher_methods(); $ciphers_and_aliases = openssl_get_cipher_methods(true); $cipher_aliases = array_diff($ciphers_and_aliases, $ciphers); //ECB mode should be avoided$ciphers = array_filter( $ciphers, function($n) { return stripos($n,"ecb")===FALSE; } ); //At least as early as Aug 2016, Openssl declared the following weak: RC2, RC4, DES, 3DES, MD5 based$ciphers = array_filter( $ciphers, function($c) { return stripos($c,"des")===FALSE; } ); $ciphers = array_filter( $ciphers, function($c) { return stripos($c,"rc2")===FALSE; } ); $ciphers = array_filter( $ciphers, function($c) { return stripos($c,"rc4")===FALSE; } ); $ciphers = array_filter( $ciphers, function($c) { return stripos($c,"md5")===FALSE; } ); $cipher_aliases = array_filter($cipher_aliases,function($c) { return stripos($c,"des")===FALSE; } ); $cipher_aliases = array_filter($cipher_aliases,function($c) { return stripos($c,"rc2")===FALSE; } ); print_r($ciphers); print_r($cipher_aliases); ?>
以上例程的输出类似于:
Array ( [0] => aes-128-cbc [1] => aes-128-cbc-hmac-sha1 [2] => aes-128-cbc-hmac-sha256 [3] => aes-128-ccm [4] => aes-128-cfb [5] => aes-128-cfb1 [6] => aes-128-cfb8 [7] => aes-128-ctr [9] => aes-128-gcm [10] => aes-128-ocb [11] => aes-128-ofb [12] => aes-128-xts [13] => aes-192-cbc [14] => aes-192-ccm [15] => aes-192-cfb [16] => aes-192-cfb1 [17] => aes-192-cfb8 [18] => aes-192-ctr [20] => aes-192-gcm [21] => aes-192-ocb [22] => aes-192-ofb [23] => aes-256-cbc [24] => aes-256-cbc-hmac-sha1 [25] => aes-256-cbc-hmac-sha256 [26] => aes-256-ccm [27] => aes-256-cfb [28] => aes-256-cfb1 [29] => aes-256-cfb8 [30] => aes-256-ctr [32] => aes-256-gcm [33] => aes-256-ocb [34] => aes-256-ofb [35] => aes-256-xts [36] => aria-128-cbc [37] => aria-128-ccm [38] => aria-128-cfb [39] => aria-128-cfb1 [40] => aria-128-cfb8 [41] => aria-128-ctr [43] => aria-128-gcm [44] => aria-128-ofb [45] => aria-192-cbc [46] => aria-192-ccm [47] => aria-192-cfb [48] => aria-192-cfb1 [49] => aria-192-cfb8 [50] => aria-192-ctr [52] => aria-192-gcm [53] => aria-192-ofb [54] => aria-256-cbc [55] => aria-256-ccm [56] => aria-256-cfb [57] => aria-256-cfb1 [58] => aria-256-cfb8 [59] => aria-256-ctr [61] => aria-256-gcm [62] => aria-256-ofb [63] => bf-cbc [64] => bf-cfb [66] => bf-ofb [67] => camellia-128-cbc [68] => camellia-128-cfb [69] => camellia-128-cfb1 [70] => camellia-128-cfb8 [71] => camellia-128-ctr [73] => camellia-128-ofb [74] => camellia-192-cbc [75] => camellia-192-cfb [76] => camellia-192-cfb1 [77] => camellia-192-cfb8 [78] => camellia-192-ctr [80] => camellia-192-ofb [81] => camellia-256-cbc [82] => camellia-256-cfb [83] => camellia-256-cfb1 [84] => camellia-256-cfb8 [85] => camellia-256-ctr [87] => camellia-256-ofb [88] => cast5-cbc [89] => cast5-cfb [91] => cast5-ofb [92] => chacha20 [93] => chacha20-poly1305 [111] => id-aes128-CCM [112] => id-aes128-GCM [113] => id-aes128-wrap [114] => id-aes128-wrap-pad [115] => id-aes192-CCM [116] => id-aes192-GCM [117] => id-aes192-wrap [118] => id-aes192-wrap-pad [119] => id-aes256-CCM [120] => id-aes256-GCM [121] => id-aes256-wrap [122] => id-aes256-wrap-pad [124] => idea-cbc [125] => idea-cfb [127] => idea-ofb [137] => seed-cbc [138] => seed-cfb [140] => seed-ofb [141] => sm4-cbc [142] => sm4-cfb [143] => sm4-ctr [145] => sm4-ofb ) Array ( [36] => aes128 [37] => aes128-wrap [38] => aes192 [39] => aes192-wrap [40] => aes256 [41] => aes256-wrap [69] => aria128 [70] => aria192 [71] => aria256 [72] => bf [77] => blowfish [99] => camellia128 [100] => camellia192 [101] => camellia256 [102] => cast [103] => cast-cbc [146] => idea [164] => seed [169] => sm4 )
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