Java Encryption Algorithm series-AESEBC

 Package ***;ImportJava.io.ByteArrayInputStream;ImportJava.io.ByteArrayOutputStream;ImportJava.io.FileInputStream;Importjava.io.FileNotFoundException;ImportJava.io.FileOutputStream;ImportJava.io.InputStream;ImportJava.io.OutputStream;Importjava.io.UnsupportedEncodingException;Importjava.security.MessageDigest;ImportJavax.crypto.Cipher;ImportJavax.crypto.spec.IvParameterSpec;ImportJavax.crypto.spec.SecretKeySpec;ImportSun.misc.BASE64Decoder;ImportSun.misc.BASE64Encoder; Public classAESEBC {/*confirmed * Encryption key can be composed of 26 letters and numbers * Here using AES-128-CBC encryption mode, key needs to be 16 bits. */        Private StaticString skey= "1234567890123456"; Private StaticString ivparameter= "1234567890123456"; Private StaticAESEBC instance=NULL; //private static        PrivateAesebc () {} Public StaticAesebc getinstance () {if(instance==NULL) Instance=NewAesebc (); returninstance; }        //Encrypt         PublicString Encrypt (String sSrc, String Encodingformat, String SKey, String ivparameter)throwsException {Cipher Cipher= Cipher.getinstance ("aes/ecb/pkcs5padding"); byte[] Raw =skey.getbytes (); Secretkeyspec Skeyspec=NewSecretkeyspec (Raw, "AES");            Cipher.init (Cipher.encrypt_mode, Skeyspec); byte[] encrypted =cipher.dofinal (Ssrc.getbytes (Encodingformat)); return NewBase64encoder (). Encode (encrypted);//transcoding is done here using BASE64.     }        //decryption         PublicString Decrypt (String sSrc, String Encodingformat, String SKey, String ivparameter)throwsException {Try {                byte[] raw = Skey.getbytes ("ASCII"); Secretkeyspec Skeyspec=NewSecretkeyspec (Raw, "AES"); Cipher Cipher= Cipher.getinstance ("aes/ecb/pkcs5padding");                Cipher.init (Cipher.decrypt_mode, Skeyspec); byte[] encrypted1 =NewBase64decoder (). Decodebuffer (SSRC);//first decrypt with Base64 .                byte[] Original =cipher.dofinal (encrypted1); String originalstring=NewString (Original,encodingformat); returnoriginalstring; } Catch(Exception ex) {return NULL; }    }         Public Static voidMain (string[] args)throwsException {//strings that need to be encryptedString CSRC = "123456"; System.out.println ("The string before encryption is:" +CSRC); //EncryptString enstring = Aesebc.getinstance (). Encrypt (CSRC, "Utf-8", Skey,ivparameter); System.out.println ("The encrypted string is:" +enstring); System.out.println ("yxvukr45pfz0ufpbdb8/ew==". Equals (enstring)); //decryptionString destring = Aesebc.getinstance (). Decrypt (enstring, "Utf-8", Skey,ivparameter); System.out.println ("The decrypted string is:" +destring); }}

Java Encryption Algorithm series-AESEBC