Php des encryption solution (for. net and JAVA)

Php des encryption solution (for. net and JAVA)

/***** Des. NET version * @ author Administrator **/class DES_NET {var $ key; var $ iv; // offset function DES_NET ($ key, $ iv = 0) {// key Length: 8 for example: 1234 abcd $ this-> key = $ key; if ($ iv = 0) {$ this-> iv = $ key; // $ key is used as the default value.} else {$ this-> iv = $ iv; // mcrypt_create_iv (mcrypt_get_block_size (MCRYPT_DES, MCRYPT_MODE_CBC), MCRYPT_DEV_RANDOM );}} function encrypt ($ str) {// encrypted, returns an uppercase hexadecimal string $ size = mcrypt_get _ Block_size (MCRYPT_DES, MCRYPT_MODE_CBC); $ str = $ this-> pkcs5Pad ($ str, $ size); return strtoupper (bin2hex (mcrypt_cbc (MCRYPT_DES, $ this-> key, $ str, MCRYPT_ENCRYPT, $ this-> iv);} function decrypt ($ str) {// decrypt $ strBin = $ this-> hex2bin (strtolower ($ str); $ str = mcrypt_cbc (MCRYPT_DES, $ this-> key, $ strBin, MCRYPT_DECRYPT, $ this-> iv); $ str = $ this-> pkcs5Unpad ($ str); return $ str;} func Tion hex2bin ($ hexData) {$ binData = ""; for ($ I = 0; $ I <strlen ($ hexData); $ I ++ = 2) {$ binData. = chr (hexdec (substr ($ hexData, $ I, 2);} return $ binData;} function pkcs5Pad ($ text, $ blocksize) {$ pad = $ blocksize-(strlen ($ text) % $ blocksize); return $ text. str_repeat (chr ($ pad), $ pad);} function pkcs5Unpad ($ text) {$ pad = ord ($ text {strlen ($ text)-1 }); if ($ pad> st Rlen ($ text) return false; if (strspn ($ text, chr ($ pad), strlen ($ text)-$ pad )! = $ Pad) return false; return substr ($ text, 0,-1 * $ pad );}} /***** des java version * @ author Administrator **/class DES_JAVA {var $ key; function DES_JAVA ($ key) {$ this-> key = $ key ;} function encrypt ($ encrypt) {$ encrypt = $ this-> pkcs5_pad ($ encrypt); $ iv = mcrypt_create_iv (encrypt (MCRYPT_DES, MCRYPT_MODE_ECB), MCRYPT_RAND ); $ passcrypt = mcrypt_encrypt (MCRYPT_DES, $ this-> key, $ encrypt, MCRYPT _ MODE_ECB, $ iv); return strtoupper (bin2hex ($ passcrypt);} function decrypt ($ decrypt) {// $ decoded = base64_decode ($ decrypt ); $ decoded = pack ("H *", $ decrypt); $ iv = mcrypt_create_iv (Encrypt (MCRYPT_DES, encrypt), MCRYPT_RAND); $ decrypted = mcrypt_decrypt (MCRYPT_DES, $ this-> key, $ decoded, MCRYPT_MODE_ECB, $ iv); return $ this-> pkcs5_unpad ($ decrypted);} function pkcs5_unpad ($ text) {$ pad = or D ($ text {strlen ($ text)-1}); if ($ pad> strlen ($ text) return $ text; if (strspn ($ text, chr ($ pad), strlen ($ text)-$ pad )! = $ Pad) return $ text; return substr ($ text, 0,-1 * $ pad);} function pkcs5_pad ($ text) {$ len = strlen ($ text ); $ mod = $ len % 8; $ pad = 8-$ mod; return $ text. str_repeat (chr ($ pad), $ pad );}}