Data Masking With Classical Ciphers

Data masking and protection is an essential part of data processing. With easy access to data, encryption of sensitive information is now a critical part of the data process especially with respect to the new data regulations in place for many countries. While there are no explicit data encryption functions in SAS, many classical encryption ciphers can be coded in SAS and applied on the data. This paper will present 3 classical ciphers macro, Caesar's cipher, Alberti cipher and BIFID cipher.