title: Data redaction by oracle
body: <p>In my current project i have a challenge regarding data redaction. we do not get data from Client  because they have sensitive information in some of the columns. So to get the data from them we decided to encrypt the data and then it will come to us.</p>
  
  <p>I am struggling to find an inbuilt algorithm in oracle which encrypt the data. One of the main objective of mine is:
  1.) Length of my original input should remain the same after data redaction.
  2.) Data type of my original input should remain after data redaction.</p>
  
  <p>Can you please give me your input to achieve this.</p>
  
  <p>Thanks and Regards
  Ankit.  </p>