logging in or signing up Mechanising Cryptography Marcell Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 663 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: January 12, 2008 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Mechanising Cryptography: Mechanising Cryptography Professor Richard Walton CBSlide2: Cryptography is concerned with the application of technology to the problem of encrypting and decrypting a message. The Mathematics is subordinate to the technology20th Century Cryptography: 20th Century Cryptography Development of Crypt in the 1900s Manual Methods Slow Laborious Error-Prone Need to mechanise Importance of technology for design Nature of technological constraints CRYPTOGRAPHY: CRYPTOGRAPHY Cost CostCryptanalysis 1918: Cryptanalysis 1918 Knowledge of language Frequency Analysis Key Re-use (Depth) Skill Requirement: To solve crossword puzzles in foreign languagesRotor Machines: Rotor MachinesRotors: RotorsCommercial Enigma: Commercial EnigmaEnigma: EnigmaEnigma: Enigma Army Navy Navy – 4 wheelEarly Machine Cryptography : Early Machine Cryptography Limitations of Security Design Balance Security against Cost Usability – Human Factors Electronics – 1960-1980: Electronics – 1960-1980 Shift Registers and Simple Logic Gates Linear Algebra Galois Theory Rich Mathematical structure Rigorous Analysis Expensive ComponentsLarge Scale Integration: Large Scale Integration Application Specific Integrated Circuits Complex Algorithms Tailored to purpose Standard Cryptographic Primitives Software and Firmware Public Key Cryptography: Public Key Cryptography Key Management Non-Secret Encryption Ellis, Cocks & Williamson Beyond 1970’s technology Widespread after 1985 Search for easier solutions Elliptic Curve Cryptography Next Challenge: Next Challenge Quantum Computers destroy current Public Key algorithms Find new algorithms to resist Quantum Computer attacksSlide19: Mechanising Cryptography Acknowledgement Illustrations concerning Enigma in this presentation have been taken from the user manual for Enigma – E by Paul Reuvers & Marc Simons. For details of Enigma-E, which is available for purchase from Bletchley Park Museum, see www.xat.nl/enigma-e/ You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Mechanising Cryptography Marcell Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 663 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: January 12, 2008 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Mechanising Cryptography: Mechanising Cryptography Professor Richard Walton CBSlide2: Cryptography is concerned with the application of technology to the problem of encrypting and decrypting a message. The Mathematics is subordinate to the technology20th Century Cryptography: 20th Century Cryptography Development of Crypt in the 1900s Manual Methods Slow Laborious Error-Prone Need to mechanise Importance of technology for design Nature of technological constraints CRYPTOGRAPHY: CRYPTOGRAPHY Cost CostCryptanalysis 1918: Cryptanalysis 1918 Knowledge of language Frequency Analysis Key Re-use (Depth) Skill Requirement: To solve crossword puzzles in foreign languagesRotor Machines: Rotor MachinesRotors: RotorsCommercial Enigma: Commercial EnigmaEnigma: EnigmaEnigma: Enigma Army Navy Navy – 4 wheelEarly Machine Cryptography : Early Machine Cryptography Limitations of Security Design Balance Security against Cost Usability – Human Factors Electronics – 1960-1980: Electronics – 1960-1980 Shift Registers and Simple Logic Gates Linear Algebra Galois Theory Rich Mathematical structure Rigorous Analysis Expensive ComponentsLarge Scale Integration: Large Scale Integration Application Specific Integrated Circuits Complex Algorithms Tailored to purpose Standard Cryptographic Primitives Software and Firmware Public Key Cryptography: Public Key Cryptography Key Management Non-Secret Encryption Ellis, Cocks & Williamson Beyond 1970’s technology Widespread after 1985 Search for easier solutions Elliptic Curve Cryptography Next Challenge: Next Challenge Quantum Computers destroy current Public Key algorithms Find new algorithms to resist Quantum Computer attacksSlide19: Mechanising Cryptography Acknowledgement Illustrations concerning Enigma in this presentation have been taken from the user manual for Enigma – E by Paul Reuvers & Marc Simons. For details of Enigma-E, which is available for purchase from Bletchley Park Museum, see www.xat.nl/enigma-e/