SlideShare a Scribd company logo

Cryptography - A Brief History

•Download as PPT, PDF•
•
P
prasenjeetd

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

TechnologyEducation
1 of 39
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

Recommended

RSA algorithm
RSA algorithmRSA algorithm
RSA algorithm
Arpana shree
 
Cryptography
CryptographyCryptography
Cryptography
Kalyani Government Engineering College
 
RSA ALGORITHM
RSA ALGORITHMRSA ALGORITHM
RSA ALGORITHM
Sathish Kumar
 
A Brief History of Cryptography
A Brief History of CryptographyA Brief History of Cryptography
A Brief History of Cryptography
guest9006ab
 
symmetric key encryption algorithms
symmetric key encryption algorithms symmetric key encryption algorithms
symmetric key encryption algorithms
Rashmi Burugupalli
 
Cryptography and Network Security
Cryptography and Network SecurityCryptography and Network Security
Cryptography and Network Security
Pa Van Tanku
 
Introduction to Cryptography
Introduction to CryptographyIntroduction to Cryptography
Introduction to Cryptography
Seema Goel
 
Data Encryption Standard (DES)
Data Encryption Standard (DES)Data Encryption Standard (DES)
Data Encryption Standard (DES)
Haris Ahmed
 

Recommended

RSA algorithm
RSA algorithmRSA algorithm
RSA algorithm
Arpana shree
 
Cryptography
CryptographyCryptography
Cryptography
Kalyani Government Engineering College
 
RSA ALGORITHM
RSA ALGORITHMRSA ALGORITHM
RSA ALGORITHM
Sathish Kumar
 
A Brief History of Cryptography
A Brief History of CryptographyA Brief History of Cryptography
A Brief History of Cryptography
guest9006ab
 
symmetric key encryption algorithms
symmetric key encryption algorithms symmetric key encryption algorithms
symmetric key encryption algorithms
Rashmi Burugupalli
 
Cryptography and Network Security
Cryptography and Network SecurityCryptography and Network Security
Cryptography and Network Security
Pa Van Tanku
 
Introduction to Cryptography
Introduction to CryptographyIntroduction to Cryptography
Introduction to Cryptography
Seema Goel
 
Data Encryption Standard (DES)
Data Encryption Standard (DES)Data Encryption Standard (DES)
Data Encryption Standard (DES)
Haris Ahmed
 
Hash Function
Hash FunctionHash Function
Hash Function
Siddharth Srivastava
 
6. cryptography
6. cryptography6. cryptography
6. cryptography
7wounders
 
Cryptography.ppt
Cryptography.pptCryptography.ppt
Cryptography.ppt
Uday Meena
 
Cryptography
CryptographyCryptography
Cryptography
gueste4c97e
 
DES
DESDES
DES
Naga Srimanyu Timmaraju
 
Cipher techniques
Cipher techniquesCipher techniques
Cipher techniques
Mohd Arif
 
Diffie hellman key exchange algorithm
Diffie hellman key exchange algorithmDiffie hellman key exchange algorithm
Diffie hellman key exchange algorithm
Sunita Kharayat
 
Cryptography
CryptographyCryptography
Cryptography
amiable_indian
 
cryptography
cryptographycryptography
cryptography
Abhijeet Singh
 
Cryptography
CryptographyCryptography
Cryptography
subodh pawar
 
Cryptography
CryptographyCryptography
Cryptography
Sidharth Mohapatra
 
Cryptography
CryptographyCryptography
Cryptography
Jens Patel
 
Cryptanalysis 101
Cryptanalysis 101Cryptanalysis 101
Cryptanalysis 101
rahat ali
 
Cryptography
CryptographyCryptography
Cryptography
jayashri kolekar
 
Overview of cryptography
Overview of cryptographyOverview of cryptography
Overview of cryptography
Roshan Chaudhary
 
History of cryptography
History of cryptographyHistory of cryptography
History of cryptography
Farah Shaikh
 
One time Pad Encryption
One time Pad EncryptionOne time Pad Encryption
One time Pad Encryption
Abdullah Mubashar
 
Introduction to Cryptography
Introduction to CryptographyIntroduction to Cryptography
Introduction to Cryptography
Md. Afif Al Mamun
 
Cryptography
CryptographyCryptography
Cryptography
Sagar Janagonda
 
Public Key Cryptography
Public Key CryptographyPublic Key Cryptography
Public Key Cryptography
Gopal Sakarkar
 
Cryptography.ppt
Cryptography.pptCryptography.ppt
Cryptography.ppt
kusum sharma
 
Cryptography
CryptographyCryptography
Cryptography
Shivanand Arur
 

More Related Content

What's hot

6. cryptography
6. cryptography6. cryptography
6. cryptography
7wounders
 
Cryptography.ppt
Cryptography.pptCryptography.ppt
Cryptography.ppt
Uday Meena
 
Cipher techniques
Cipher techniquesCipher techniques
Cipher techniques
Mohd Arif
 

What's hot (20)

Hash Function
Hash FunctionHash Function
Hash Function
 
6. cryptography
6. cryptography6. cryptography
6. cryptography
 
Cryptography.ppt
Cryptography.pptCryptography.ppt
Cryptography.ppt
 
Cryptography
CryptographyCryptography
Cryptography
 
DES
DESDES
DES
 
Cipher techniques
Cipher techniquesCipher techniques
Cipher techniques
 
Diffie hellman key exchange algorithm
Diffie hellman key exchange algorithmDiffie hellman key exchange algorithm
Diffie hellman key exchange algorithm
 
Cryptography
CryptographyCryptography
Cryptography
 
cryptography
cryptographycryptography
cryptography
 
Cryptography
CryptographyCryptography
Cryptography
 
Cryptography
CryptographyCryptography
Cryptography
 
Cryptography
CryptographyCryptography
Cryptography
 
Cryptanalysis 101
Cryptanalysis 101Cryptanalysis 101
Cryptanalysis 101
 
Cryptography
CryptographyCryptography
Cryptography
 
Overview of cryptography
Overview of cryptographyOverview of cryptography
Overview of cryptography
 
History of cryptography
History of cryptographyHistory of cryptography
History of cryptography
 
One time Pad Encryption
One time Pad EncryptionOne time Pad Encryption
One time Pad Encryption
 
Introduction to Cryptography
Introduction to CryptographyIntroduction to Cryptography
Introduction to Cryptography
 
Cryptography
CryptographyCryptography
Cryptography
 
Public Key Cryptography
Public Key CryptographyPublic Key Cryptography
Public Key Cryptography
 

Viewers also liked

Digital signature algorithm (de la cruz, genelyn).ppt 2
Digital signature algorithm (de la cruz, genelyn).ppt 2Digital signature algorithm (de la cruz, genelyn).ppt 2
Digital signature algorithm (de la cruz, genelyn).ppt 2
YooGenelyn
 
Cryptography and E-Commerce
Cryptography and E-CommerceCryptography and E-Commerce
Cryptography and E-Commerce
Hiep Luong
 

Viewers also liked (20)

Cryptography.ppt
Cryptography.pptCryptography.ppt
Cryptography.ppt
 
Cryptography
CryptographyCryptography
Cryptography
 
Cryptography
CryptographyCryptography
Cryptography
 
Cryptography
Cryptography Cryptography
Cryptography
 
Cryptography
CryptographyCryptography
Cryptography
 
Encryption
EncryptionEncryption
Encryption
 
Cryptography its history application and beyond
Cryptography its history application and beyondCryptography its history application and beyond
Cryptography its history application and beyond
 
Blowfish Cryptosystem
Blowfish Cryptosystem Blowfish Cryptosystem
Blowfish Cryptosystem
 
Digital signature algorithm (de la cruz, genelyn).ppt 2
Digital signature algorithm (de la cruz, genelyn).ppt 2Digital signature algorithm (de la cruz, genelyn).ppt 2
Digital signature algorithm (de la cruz, genelyn).ppt 2
 
Three Level Security System Using Image Based Aunthentication
Three Level Security System Using Image Based AunthenticationThree Level Security System Using Image Based Aunthentication
Three Level Security System Using Image Based Aunthentication
 
Cryptography
Cryptography Cryptography
Cryptography
 
IPsec
IPsecIPsec
IPsec
 
IPSec VPN Basics
IPSec VPN BasicsIPSec VPN Basics
IPSec VPN Basics
 
Cryptography and E-Commerce
Cryptography and E-CommerceCryptography and E-Commerce
Cryptography and E-Commerce
 
IPSec and VPN
IPSec and VPNIPSec and VPN
IPSec and VPN
 
Ipsec
IpsecIpsec
Ipsec
 
Ipsec
IpsecIpsec
Ipsec
 
IPSec Overview
IPSec OverviewIPSec Overview
IPSec Overview
 
IP Security
IP SecurityIP Security
IP Security
 
Security Threats to Electronic Commerce
Security Threats to Electronic CommerceSecurity Threats to Electronic Commerce
Security Threats to Electronic Commerce
 

Similar to Cryptography - A Brief History

Cryptography Lecture by Sam Bowne
Cryptography Lecture by Sam BowneCryptography Lecture by Sam Bowne
Cryptography Lecture by Sam Bowne
SecurityTube.Net
 
Ch12 Encryption
Ch12 EncryptionCh12 Encryption
Ch12 Encryption
phanleson
 

Similar to Cryptography - A Brief History (20)

Introduction To PKI Technology
Introduction To PKI TechnologyIntroduction To PKI Technology
Introduction To PKI Technology
 
Cryptography and network security
Cryptography and network securityCryptography and network security
Cryptography and network security
 
Cryptography Lecture by Sam Bowne
Cryptography Lecture by Sam BowneCryptography Lecture by Sam Bowne
Cryptography Lecture by Sam Bowne
 
Rothke Info Security Canada 2007 Final
Rothke Info Security Canada 2007 FinalRothke Info Security Canada 2007 Final
Rothke Info Security Canada 2007 Final
 
Day5
Day5Day5
Day5
 
Ch12 Cryptography it-slideshares.blogspot.com
Ch12 Cryptography it-slideshares.blogspot.comCh12 Cryptography it-slideshares.blogspot.com
Ch12 Cryptography it-slideshares.blogspot.com
 
Elementry Cryptography
Elementry CryptographyElementry Cryptography
Elementry Cryptography
 
Cryptography Intro
Cryptography IntroCryptography Intro
Cryptography Intro
 
02 Information System Security
02 Information System Security02 Information System Security
02 Information System Security
 
amer-network-sihubconferances-security.ppt
amer-network-sihubconferances-security.pptamer-network-sihubconferances-security.ppt
amer-network-sihubconferances-security.ppt
 
Itt project
Itt projectItt project
Itt project
 
Seminar on Encryption and Authenticity
Seminar on Encryption and AuthenticitySeminar on Encryption and Authenticity
Seminar on Encryption and Authenticity
 
Cryptography - An Overview
Cryptography - An OverviewCryptography - An Overview
Cryptography - An Overview
 
Overview Of Cryptography
Overview Of CryptographyOverview Of Cryptography
Overview Of Cryptography
 
Network security
Network securityNetwork security
Network security
 
Cryptography
CryptographyCryptography
Cryptography
 
Cryptography
CryptographyCryptography
Cryptography
 
Ch12 Encryption
Ch12 EncryptionCh12 Encryption
Ch12 Encryption
 
Encryption technology
Encryption technologyEncryption technology
Encryption technology
 
Introduction to encryption
Introduction to encryptionIntroduction to encryption
Introduction to encryption
 

Recently uploaded

TrustArc Webinar - Unlock the Power of AI-Driven Data Discovery
TrustArc Webinar - Unlock the Power of AI-Driven Data DiscoveryTrustArc Webinar - Unlock the Power of AI-Driven Data Discovery
TrustArc Webinar - Unlock the Power of AI-Driven Data Discovery
TrustArc
 
DEV meet-up UiPath Document Understanding May 7 2024 Amsterdam
DEV meet-up UiPath Document Understanding May 7 2024 AmsterdamDEV meet-up UiPath Document Understanding May 7 2024 Amsterdam
DEV meet-up UiPath Document Understanding May 7 2024 Amsterdam
UiPathCommunity
 
Biography Of Angeliki Cooney | Senior Vice President Life Sciences | Albany, ...
Biography Of Angeliki Cooney | Senior Vice President Life Sciences | Albany, ...Biography Of Angeliki Cooney | Senior Vice President Life Sciences | Albany, ...
Biography Of Angeliki Cooney | Senior Vice President Life Sciences | Albany, ...
Angeliki Cooney
 
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdfRising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf
Orbitshub
 
Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...
Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...
Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...
Orbitshub
 
Ransomware_Q4_2023. The report. [EN].pdf
Ransomware_Q4_2023. The report. [EN].pdfRansomware_Q4_2023. The report. [EN].pdf
Ransomware_Q4_2023. The report. [EN].pdf
Overkill Security
 

Recently uploaded (20)

Repurposing LNG terminals for Hydrogen Ammonia: Feasibility and Cost Saving
Repurposing LNG terminals for Hydrogen Ammonia: Feasibility and Cost SavingRepurposing LNG terminals for Hydrogen Ammonia: Feasibility and Cost Saving
Repurposing LNG terminals for Hydrogen Ammonia: Feasibility and Cost Saving
 
TrustArc Webinar - Unlock the Power of AI-Driven Data Discovery
TrustArc Webinar - Unlock the Power of AI-Driven Data DiscoveryTrustArc Webinar - Unlock the Power of AI-Driven Data Discovery
TrustArc Webinar - Unlock the Power of AI-Driven Data Discovery
 
Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...
Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...
Apidays New York 2024 - APIs in 2030: The Risk of Technological Sleepwalk by ...
 
Exploring the Future Potential of AI-Enabled Smartphone Processors
Exploring the Future Potential of AI-Enabled Smartphone ProcessorsExploring the Future Potential of AI-Enabled Smartphone Processors
Exploring the Future Potential of AI-Enabled Smartphone Processors
 
DBX First Quarter 2024 Investor Presentation
DBX First Quarter 2024 Investor PresentationDBX First Quarter 2024 Investor Presentation
DBX First Quarter 2024 Investor Presentation
 
Apidays New York 2024 - Scaling API-first by Ian Reasor and Radu Cotescu, Adobe
Apidays New York 2024 - Scaling API-first by Ian Reasor and Radu Cotescu, AdobeApidays New York 2024 - Scaling API-first by Ian Reasor and Radu Cotescu, Adobe
Apidays New York 2024 - Scaling API-first by Ian Reasor and Radu Cotescu, Adobe
 
DEV meet-up UiPath Document Understanding May 7 2024 Amsterdam
DEV meet-up UiPath Document Understanding May 7 2024 AmsterdamDEV meet-up UiPath Document Understanding May 7 2024 Amsterdam
DEV meet-up UiPath Document Understanding May 7 2024 Amsterdam
 
EMPOWERMENT TECHNOLOGY GRADE 11 QUARTER 2 REVIEWER
EMPOWERMENT TECHNOLOGY GRADE 11 QUARTER 2 REVIEWEREMPOWERMENT TECHNOLOGY GRADE 11 QUARTER 2 REVIEWER
EMPOWERMENT TECHNOLOGY GRADE 11 QUARTER 2 REVIEWER
 
Biography Of Angeliki Cooney | Senior Vice President Life Sciences | Albany, ...
Biography Of Angeliki Cooney | Senior Vice President Life Sciences | Albany, ...Biography Of Angeliki Cooney | Senior Vice President Life Sciences | Albany, ...
Biography Of Angeliki Cooney | Senior Vice President Life Sciences | Albany, ...
 
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdfRising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf
Rising Above_ Dubai Floods and the Fortitude of Dubai International Airport.pdf
 
Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...
Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...
Navigating the Deluge_ Dubai Floods and the Resilience of Dubai International...
 
[BuildWithAI] Introduction to Gemini.pdf
[BuildWithAI] Introduction to Gemini.pdf[BuildWithAI] Introduction to Gemini.pdf
[BuildWithAI] Introduction to Gemini.pdf
 
2024: Domino Containers - The Next Step. News from the Domino Container commu...
2024: Domino Containers - The Next Step. News from the Domino Container commu...2024: Domino Containers - The Next Step. News from the Domino Container commu...
2024: Domino Containers - The Next Step. News from the Domino Container commu...
 
"I see eyes in my soup": How Delivery Hero implemented the safety system for ...
"I see eyes in my soup": How Delivery Hero implemented the safety system for ..."I see eyes in my soup": How Delivery Hero implemented the safety system for ...
"I see eyes in my soup": How Delivery Hero implemented the safety system for ...
 
presentation ICT roal in 21st century education
presentation ICT roal in 21st century educationpresentation ICT roal in 21st century education
presentation ICT roal in 21st century education
 
Apidays New York 2024 - The Good, the Bad and the Governed by David O'Neill, ...
Apidays New York 2024 - The Good, the Bad and the Governed by David O'Neill, ...Apidays New York 2024 - The Good, the Bad and the Governed by David O'Neill, ...
Apidays New York 2024 - The Good, the Bad and the Governed by David O'Neill, ...
 
Apidays New York 2024 - The value of a flexible API Management solution for O...
Apidays New York 2024 - The value of a flexible API Management solution for O...Apidays New York 2024 - The value of a flexible API Management solution for O...
Apidays New York 2024 - The value of a flexible API Management solution for O...
 
ProductAnonymous-April2024-WinProductDiscovery-MelissaKlemke
ProductAnonymous-April2024-WinProductDiscovery-MelissaKlemkeProductAnonymous-April2024-WinProductDiscovery-MelissaKlemke
ProductAnonymous-April2024-WinProductDiscovery-MelissaKlemke
 
AXA XL - Insurer Innovation Award Americas 2024
AXA XL - Insurer Innovation Award Americas 2024AXA XL - Insurer Innovation Award Americas 2024
AXA XL - Insurer Innovation Award Americas 2024
 
Ransomware_Q4_2023. The report. [EN].pdf
Ransomware_Q4_2023. The report. [EN].pdfRansomware_Q4_2023. The report. [EN].pdf
Ransomware_Q4_2023. The report. [EN].pdf
 

Cryptography - A Brief History

  • 1. Cryptography A Brief History Prasenjeet Dutta Cybernet Software Systems Inc. [email_address]
  • 2.
  • 3.
  • 4.
  • 5. Part I The Ciphers ◄ contents
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19.
  • 20.
  • 21.
  • 22.
  • 23. Part II The Politics ◄ contents
  • 24.
  • 25.
  • 26.
  • 27.
  • 28. Part III Security and Privacy ◄ contents
  • 29.
  • 30.
  • 31.
  • 32.
  • 33.
  • 34.
  • 35.
  • 36.
  • 37.
  • 38.