cryptographic - Definition from the Hotspot Shield Glossary

Cryptography is the means of converting data into and unreadable form so that only the intended recipients can read it. In computing, cryptography is mainly involved in changing plain text (Just standard readable text i.e. in a word document), into an unreadable form or ciphertext.

The main purpose of cryptography is to give confidentiality so that only the recipient can understand the data, integrity so that the recipient knows the data has not been altered, and authentication so that the recipient knows that the data has come from a reputable source. Cryptography is vital in today’s world of modern technology as the means for intercepting data are becoming more sophisticated - As hackers and disreputable organizations evolve and find new ways to gather information, the methods of cryptography and online security must evolve too.