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openssl_get_cipher_methodsGets available cipher methods Description
array openssl_get_cipher_methods(bool
$aliases = false )Gets a list of available cipher methods. Parameters
Return ValuesAn array of available cipher methods. Note that prior to OpenSSL 1.1.1, the cipher methods have been returned in upper case and lower case spelling; as of OpenSSL 1.1.1 only the lower case variants are returned. Examples
Example #1 openssl_get_cipher_methods example Shows how the available ciphers might look, and also which aliases might be available.
The above example will output something similar to: 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 ) See Also
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