PHP implements a complete example of the DES encryption and decryption encapsulation class, And phpdes encryption and decryption Encapsulation

PHP implements a complete example of the DES encryption and decryption encapsulation class, And phpdes encryption and decryption Encapsulation

This example describes the DES encryption and decryption encapsulation class implemented by PHP. We will share this with you for your reference. The details are as follows:

<? Php/*** php des encryption/Decryption class * can be compatible with java's DES (DESede/CBC/PKCS5Padding) encryption method **/class CryptDes {var $ key; var $ iv; function CryptDes ($ key, $ iv) {$ this-> key = $ key; $ this-> iv = $ iv;} function encrypt ($ input) {$ size = mcrypt_get_block_size (MCRYPT_DES, MCRYPT_MODE_CBC); // change MCRYPT_DES to MCRYPT_3DES $ input = $ this-> pkcs5_pad ($ input, $ size ); // If PaddingPKCS7 is used, replace it with the PaddingPKCS7 method. $ Key = str_pad ($ this-> key, 8, '0'); // change 8 to 24 $ td = mcrypt_module_open (MCRYPT_DES, '', MCRYPT_MODE_CBC, ''); if ($ this-> iv ='') {$ iv = @ mcrypt_create_iv (mcrypt_enc_get_iv_size ($ td), MCRYPT_RAND );} else {$ iv = $ this-> iv;} @ mcrypt_generic_init ($ td, $ key, $ iv); $ data = mcrypt_generic ($ td, $ input ); mcrypt_generic_deinit ($ td); mcrypt_module_close ($ td); $ data = base64_encode ($ data); // if you want to convert binary data, you can Change bin2hex to return $ data;} function decrypt ($ encrypted) {$ encrypted = base64_decode ($ encrypted ); // if you want to convert binary data, you can change it to bin2hex to convert $ key = str_pad ($ this-> key, 8, '0 '); // change 8 to 24 $ td = mcrypt_module_open (MCRYPT_DES, '', MCRYPT_MODE_CBC,'') for 3DES encryption ,''); // change MCRYPT_DES to MCRYPT_3DES for 3DES encryption if ($ this-> iv = '') {$ iv = @ mcrypt_create_iv (mcrypt_enc_get_iv_size ($ td), MCRYPT_RAND );} else {$ iv = $ this-> iv;} $ ks = mcrypt_en C_get_key_size ($ td); @ mcrypt_generic_init ($ td, $ key, $ iv); $ decrypted = mdecrypt_generic ($ td, $ encrypted); mcrypt_generic_deinit ($ td ); mcrypt_module_close ($ td); $ y = $ this-> pkcs5_unpad ($ decrypted); return $ y;} function pkcs5_pad ($ text, $ blocksize) {$ pad = $ blocksize-(strlen ($ text) % $ blocksize); return $ text. str_repeat (chr ($ pad), $ pad);} function pkcs5_unpad ($ text) {$ pad = ord ($ text {strlen ($ Text)-1}); if ($ pad> strlen ($ text) {return false;} if (strspn ($ text, chr ($ pad ), strlen ($ text)-$ pad )! = $ Pad) {return false;} return substr ($ text, 0,-1 * $ pad);} function PaddingPKCS7 ($ data) {$ block_size = mcrypt_get_block_size (MCRYPT_DES, MCRYPT_MODE_CBC); // 3DES change MCRYPT_DES to MCRYPT_3DES $ padding_char = $ block_size-(strlen ($ data) % $ block_size); $ data. = str_repeat (chr ($ padding_char), $ padding_char); return $ data ;}$ des = new CryptDes ("12345678", "12345678"); // (key vector, confusion vector) echo $ ret = $ des-> enc Rypt ("1111"); // encrypted string?>

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Online hash/hash algorithm encryption tool:
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Online MD5/hash/SHA-1/SHA-2/SHA-256/SHA-512/SHA-3/RIPEMD-160 encryption tools:
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Online sha1/shaloud/sha256/sha384/sha512 encryption tool:
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