AES Encryption decryption

Due to the project needs, so recently read the next AES encryption decryption, words not much to say, directly see the implementation:

Encryption:

Encrypt private static byte[] Encrypt (string content, string password) {try {keygenerator KGen = keygenerator.getinstance ("AE S "); Kgen.init (+, New SecureRandom (Password.getbytes ())); Secretkey Secretkey = Kgen.generatekey (); byte[] Encodeformat = secretkey.getencoded (); Secretkeyspec key = new Secretkeyspec (Encodeformat, "AES"); Cipher Cipher = cipher.getinstance ("AES");//Create cipher byte[] bytecontent = content.getbytes ("Utf-8"); Cipher.init ( Cipher.encrypt_mode, key);//Initialize byte[] result = cipher.dofinal (bytecontent); return result; Encryption} catch (NoSuchAlgorithmException e) {e.printstacktrace ();} catch (Nosuchpaddingexception e) {e.printstacktrace ();} catch (InvalidKeyException e) {e.printstacktrace ();} catch (Unsupportedencodingexception e) {e.printstacktrace ();} catch (Illegalblocksizeexception e) {e.printstacktrace ();} catch (Badpaddingexception e) {e.printstacktrace ();} return null;} /** convert binary to 16 binary encryption * @param BUF * @return */public static String Parsebyte2hexstr (byte buf[]) {StrinGbuffer sb = new StringBuffer ();                  for (int i = 0; i < buf.length; i++) {String hex = integer.tohexstring (Buf[i] & 0xFF);                  if (hex.length () = = 1) {hex = ' 0 ' + hex;          } sb.append (Hex.touppercase ());  } return sb.tostring ();    }

Decrypt:

Decrypt private static byte[] Decrypt (byte[] account, String password) {try {keygenerator KGen =                   Keygenerator.getinstance ("AES");                   Kgen.init (+, New SecureRandom (Password.getbytes ()));                   Secretkey Secretkey = Kgen.generatekey ();                   byte[] Encodeformat = secretkey.getencoded ();                               Secretkeyspec key = new Secretkeyspec (Encodeformat, "AES");                   Cipher Cipher = cipher.getinstance ("AES");//Create cipher Cipher.init (Cipher.decrypt_mode, key);//Initialize                  Byte[] result = cipher.dofinal (account); return result;          Encryption} catch (NoSuchAlgorithmException e) {e.printstacktrace ();          } catch (Nosuchpaddingexception e) {e.printstacktrace ();          } catch (InvalidKeyException e) {e.printstacktrace (); } catch (Illegalblocksizeexception e) {E.printstaCktrace ();          } catch (Badpaddingexception e) {e.printstacktrace ();  } return null;          }/** convert 16 binary to binary--Decrypt * @param hexstr * @return * * public static byte[] Parsehexstr2byte (String hexstr) {          if (Hexstr.length () < 1) return null;          Byte[] result = new Byte[hexstr.length ()/2]; for (int i = 0;i< hexstr.length ()/2; i++) {int high = Integer.parseint (Hexstr.substring (i*2, i*2+1),                  16);                  int low = Integer.parseint (Hexstr.substring (i*2+1, i*2+2), 16);          Result[i] = (byte) (high * + low);  } return result;   }

Client testing:

        String content = "CDJZBDD"; String addpwd = "123456";  Convention public encryption Password//encryption System.out.println ("Before encryption:" + content);  byte[] Enaccount = Encrypt (content, addpwd); String encryptresultstr = Parsebyte2hexstr (enaccount);  SYSTEM.OUT.PRINTLN ("After encryption:" + encryptresultstr);  Decrypt   byte[] Decryptfrom = Parsehexstr2byte (ENCRYPTRESULTSTR);  byte[] Decryptresult = Decrypt (decryptfrom,addpwd);  System.out.println ("decrypted:" + new String (Decryptresult));  

Operation Result:

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AES Encryption decryption