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History of Cryptography

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History of Cryptography
AN EASY TO UNDERSTAND HISTORY OF CRYPTOGRAPHY

Contents
1. Introduction 2. Classical Encryptions (Ancient Times) 3. Classical Encryptions (Middle Ages)
The Cipher of Mary Queen of Scots Vigenère Ciphers Uesugi Cipher

3 4 6
6 6 7

4. Modern Ciphers: Ciphers during World War I and the Emergence of Encryption Machines
German Communication Cables Disconnected by the United Kingdom Zimmermann Telegram ADFGVX Cipher The Birth of Enigma

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8 8 8 9

5. Modern Ciphers: Encryptions in the Computer and Internet Era
DES Cipher Public-Key Cryptosystem RSA Cipher Decrypting the DES Cipher Responsive Action of Cipher Enhancements for SSL

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10 10 11 12 12

6. The Future of Encryption 7. Conclusion: Enhancing the Effectiveness of Encryptions used for SSL
References

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14

2

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1. Introduction
E
ncryption and related technologies are widely and frequently used as a means of ensuring that information is secure, and their importance has been growing with the increasingly widespread utilization of the Internet. The use of encryption can be traced to as far back as about 3000 B.C., during the Babylonian Era. Encryption technologies evolved as they were used in military and political settings, but as a result of the recent widespread use of the Internet and the dramatic increase in the amount of information people come into contact in their daily lives, the settings in which encryption technologies are applied and implemented have increased, and they are now used all around us in our daily lives. The history of…...

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