A cryptographer (or cryptologist, cryptanalyst, or decipherer) is someone who is skilled at deciphering codes, puzzles or cryptograms, and at creating them in order to protect private information.

Cryptographers not only decipher codes or cryptograms, but they also invent them.  Cryptographers create secret codes used for communicating military secrets, protecting government, medical and other private information, disguising spy communications, and for encrypting our own personal information to protect it from prying eyes on the Internet.

The Advanced Encryption Standard (AES), used by the U.S. government to protect classified information, and by e-commerce companies to credit card information, was created by cryptographers Joan Daemen and Vincent Rijimen. 

Post graduate qualifications are required in this field.