History of Cryptography

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History of Cryptography

AN EASY TO UNDERSTAND HISTORY OF CRYPTOGRAPHY

Contents

1. Introduction 3

2. Classical Encryptions (Ancient Times) 4

3. Classical Encryptions (Middle Ages) 6

The Cipher of Mary Queen of Scots 6

Vigenère Ciphers 6

Uesugi Cipher 7

4. Modern Ciphers:

Ciphers during World War I and the Emergence of

Encryption Machines 8

German Communication Cables Disconnected by the United Kingdom 8

Zimmermann Telegram 8

ADFGVX Cipher 8

The Birth of Enigma 9

5. Modern Ciphers:

Encryptions in the Computer and Internet Era 10

DES Cipher 10

Public-Key Cryptosystem 10

RSA Cipher 11

Decrypting the DES Cipher 12

Responsive Action of Cipher Enhancements for SSL 12

6. The Future of Encryption 13

7. Conclusion:

Enhancing the Effectiveness of Encryptions used for SSL

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(sursa: thehackernews)