It is unfortunate, but the need to keep a wide variety of information secret also means that people can also use encryption to keep secret things that society has decided are unlawful, such as the plans to rob a bank.Įncryption technologies also have other valuable capabilities. The operating system has secrets it needs to keep away from users, users want their credit card details kept secret and away from hackers, everyone wants their financial and health affairs secret, and, sadly, it appears that even today people still need to keep their religious persuasions secret. Everyone has a need to keep some things secret. Today, every PC is equipped with enough powerful mathematically proven encryption engines to process information at many megabytes per minute – something beyond the wildest dreams of our ancestors, and little realised by most PC users. By comparison, by the time the Germans introduced their Enigma machines (and subsequently the British their computers at Bletchley Park to decrypt them) the process was becoming fully automated, and down to days or just hours.
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It took Elizabeth’s code breaker some weeks to figure out what the secret information meant. When Mary, Queen of Scots sent her encrypted messages to raise a revolt against Elizabeth I, the process was very manual, and slow. Julius CAESar used encryption to send his instructions to his armies, and the CAESar cipher, one of the earliest recorded ciphers, is named after him.īut the honours for the groundwork to our modern use of cryptography should probably go to the Turkish community for their application of mathematical algorithms (formulae to convert by a mathematical process between ordinary information, called plaintext by the cryptography community, and cipher text, the encrypted information that is impossible to understand without the key) to automate and make routine the business of encrypting and decrypting information.
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