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Cryptography - A Brief History

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An introductory 2002 tour of cryptography for beginners, covering the basics of the technology and the social context cryptography operates in.

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Cryptography A Brief History Prasenjeet Dutta Cybernet Software Systems Inc. [email_address]
Presented at ,[object Object]
In Today’s Session ,[object Object],[object Object],[object Object],[object Object]
Basic Definitions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Part I The Ciphers ◄ contents
Early History: Caesar Cipher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Transposition Ciphers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Vigenère Cipher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
One Time Pad (“Vernam Ciphers”) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
WWII: The Enigma ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
A Taxonomy of Ciphers ,[object Object],[object Object],[object Object],[object Object],[object Object]
Substitution Ciphers ,[object Object],[object Object],[object Object],[object Object]
Substitution Ciphers, contd. ,[object Object],[object Object],[object Object],[object Object],[object Object]
Symmetric Ciphers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The Key Distribution Problem ,[object Object],[object Object],[object Object],[object Object],[object Object]
Enter Public Key Cryptography ,[object Object],[object Object],[object Object],[object Object],[object Object]
R, S and A ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The RSA Algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
RSA for Encryption ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
RSA For Signing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
PK vs. Symmetric Ciphers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hashes and Steganography ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Part II The Politics ◄ contents
The Politics of Crypto ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Indian Law ,[object Object],[object Object],[object Object]
US Cryptographic Law ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
US Laws, contd. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Part III Security and Privacy ◄ contents
The Crypto Wars ,[object Object],[object Object],[object Object],[object Object],[object Object]
The Bigger Picture ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The Black Hats Strike Back ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pretty Bad Privacy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
And it gets worse ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
That Said… ,[object Object],[object Object],[object Object]
Improving Computer Security ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Thanks for Listening! ,[object Object],[object Object]
Further Exploration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
On the Internet ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The End

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Cryptography - A Brief History

  • 1. Cryptography A Brief History Prasenjeet Dutta Cybernet Software Systems Inc. [email_address]
  • 2.
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  • 5. Part I The Ciphers ◄ contents
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  • 23. Part II The Politics ◄ contents
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  • 28. Part III Security and Privacy ◄ contents
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