We are working on a data scrumbling kind of utility for financial data , basically our aim is that this utility gets the data from the database , scrumbles/encrypts the data and converts it to unreadible form so that no one can understand it during the
testing phase , suppose that if we have "RAZA" in the database than it would be replaced by "SBAB" (one character after the actual character) , one thing to take care is that the scrumbled data should have excatly the same length as actual data, I am totally novoice in data encryption and scrumbling , please suggest some suitable algorithim for it , if there are some APIs in
java spefically for this purpose than please suggest , our basic aim is that scrumbled data should have same length as the actual data and should be again convertable to the actual form.