how to encrypte a file using java code example
Example: UPLOAD TEXTFILE USING CYPERTEXT USING JAVA
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
public class HelloWorld{
public static void main(String[] args) {
try{
KeyGenerator keygenerator = KeyGenerator.getInstance("DES");
SecretKey myDesKey = keygenerator.generateKey();
Cipher desCipher;
desCipher = Cipher.getInstance("DES");
byte[] text = "No body can see me.".getBytes("UTF8");
desCipher.init(Cipher.ENCRYPT_MODE, myDesKey);
byte[] textEncrypted = desCipher.doFinal(text);
String s = new String(textEncrypted);
System.out.println(s);
desCipher.init(Cipher.DECRYPT_MODE, myDesKey);
byte[] textDecrypted = desCipher.doFinal(textEncrypted);
s = new String(textDecrypted);
System.out.println(s);
}catch(Exception e)
{
System.out.println("Exception");
}
}
}