Php code encrypted with 3des (compatible with. net)

Php code encrypted with 3des (compatible with. net)

Class Crypt3Des { Private $ key = ""; Private $ iv = ""; /** * Construct and pass two keys and IV that have been base64_encode * * @ Param string $ key * @ Param string $ iv */ Function _ construct ($ key, $ iv) { If (empty ($ key) | empty ($ iv )){ Echo 'key and iv is not valid '; Exit (); } $ This-> key = $ key; $ This-> iv = $ iv; } /** * Encryption * @ Param $ Value * @ Return */ Public function encrypt ($ value) { $ Td = mcrypt_module_open (MCRYPT_3DES, '', MCRYPT_MODE_CBC ,''); $ Iv = base64_decode ($ this-> iv ); $ Value = $ this-> PaddingPKCS7 ($ value ); $ Key = base64_decode ($ this-> key ); Mcrypt_generic_init ($ td, $ key, $ iv ); $ Ret = base64_encode (mcrypt_generic ($ td, $ value )); Mcrypt_generic_deinit ($ td ); Mcrypt_module_close ($ td ); Return $ ret; } /** * Decryption * @ Param $ Value * @ Return */ Public function decrypt ($ value) { $ Td = mcrypt_module_open (MCRYPT_3DES, '', MCRYPT_MODE_CBC ,''); $ Iv = base64_decode ($ this-> iv ); $ Key = base64_decode ($ this-> key ); Mcrypt_generic_init ($ td, $ key, $ iv ); $ Ret = trim (mdecrypt_generic ($ td, base64_decode ($ value ))); $ Ret = $ this-> UnPaddingPKCS7 ($ ret ); Mcrypt_generic_deinit ($ td ); Mcrypt_module_close ($ td ); Return $ ret; } Private function PaddingPKCS7 ($ data) { $ Block_size = mcrypt_get_block_size ('tripledes ', 'cbc '); $ Padding_char = $ block_size-(strlen ($ data) % $ block_size ); $ Data. = str_repeat (chr ($ padding_char), $ padding_char ); Return $ data; } Private function UnPaddingPKCS7 ($ 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 ); } } ?> Articles that you may be interested in: php DES encryption and decryption code example about des encryption and decryption implementation method (php net)