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Cryptography Lecture by Sam Bowne

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Cryptography is the process of encrypting and decrypting data to protect it from unauthorized access. The document discusses the history of cryptography from early substitution ciphers to modern algorithms like AES. It describes symmetric cryptography which uses a single key and asymmetric cryptography which uses public/private key pairs. Popular algorithms for encryption, digital signatures, and hashing are also outlined along with attacks that can compromise cryptosystems like brute force and man-in-the-middle attacks.

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Hands-On Ethical Hacking and Network Defense Chapter 12 Cryptography Last modified 11-6-08
Objectives ,[object Object],[object Object],[object Object],[object Object]
Understanding Cryptography Basics ,[object Object],[object Object],[object Object],[object Object],[object Object]
History of Cryptography ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
History of Cryptography (continued) ,[object Object],[object Object],[object Object]
Enigma ,[object Object],[object Object],[object Object],[object Object]
Steganography ,[object Object],[object Object],[object Object]
Algorithms ,[object Object],[object Object],[object Object],[object Object]
Keys (not in textbook) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Brute Force (not in textbook) ,[object Object],[object Object],[object Object],[object Object],[object Object]
How Many Bits Do You Need? (not in textbook) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Symmetric Cryptography ,[object Object],[object Object],[object Object],Winning Lotto #s: aWDHOP#@-w9 aWDHOP#@-w9 Winning Lotto #s:
Symmetric Cryptography Algorithms ,[object Object],[object Object],[object Object],[object Object],[object Object]
Symmetric Cryptography Algorithms ,[object Object],[object Object],[object Object],[object Object],[object Object]
Symmetric Cryptography Algorithms ,[object Object],[object Object],[object Object],[object Object],[object Object]
DeCSS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Data Encryption Standard (DES) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Data Encryption Standard (DES) ,[object Object],[object Object]
Data Encryption Standard (DES) (continued) ,[object Object],[object Object],[object Object],[object Object]
Triple DES (3DES) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Advanced Encryption Standard (AES) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
International Data Encryption Algorithm (IDEA) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Blowfish ,[object Object],[object Object],[object Object]
RC5 ,[object Object],[object Object],[object Object]
Cracking RC5 ,[object Object],[object Object],[object Object],[object Object]
Asymmetric Cryptography Algorithms ,[object Object],[object Object],[object Object],[object Object],[object Object]
Asymmetric Cryptography ,[object Object],[object Object],Winning Lotto #s: aWDHOP#@-w9 aWDHOP#@-w9 Winning Lotto #s:
Asymmetric Cryptography ,[object Object],[object Object],[object Object]
Asymmetric Cryptography ,[object Object],[object Object],[object Object],[object Object],[object Object]
RSA ,[object Object],[object Object],[object Object]
Diffie-Hellman ,[object Object],[object Object],[object Object],[object Object],[object Object]
Elliptic Curve Cryptosystems (ECC) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Elgamal ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
From Wikipedia Link Ch 12o
Digital Signatures ,[object Object],[object Object]
Digital Signature Standard (DSS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pretty Good Privacy (PGP) ,[object Object],[object Object],[object Object]
Pretty Good Privacy (PGP) ,[object Object],[object Object],[object Object],[object Object]
Pretty Good Privacy (PGP) (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Secure Multipurpose Internet Mail Extension (S/MIME) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Privacy-Enhanced Mail (PEM) ,[object Object],[object Object],[object Object],[object Object]
Hashing Algorithms ,[object Object],[object Object],[object Object]
Collisions ,[object Object],[object Object]
Hashing Algorithms ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Symmetric Algorithms (Private-key) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Asymmetric Algorithms (Public-key) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Hashing Algorithms ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Public Key Infrastructure (PKI) ,[object Object],[object Object],[object Object],[object Object]
PKI Components ,[object Object],[object Object]
PKI Components ,[object Object],[object Object]
Certificate Expiration and Renewal ,[object Object],[object Object],[object Object],[object Object]
Certificate Revocation and Suspension ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Certificate Revocation and Suspension ,[object Object],[object Object],[object Object]
Backing Up Keys ,[object Object],[object Object],[object Object],[object Object]
Microsoft Root CA ,[object Object],[object Object],[object Object],[object Object]
Microsoft Root CA ,[object Object],[object Object],[object Object],[object Object]
Understanding Cryptographic Attacks ,[object Object],[object Object],[object Object],[object Object],[object Object]
Birthday Attack ,[object Object],[object Object],[object Object],[object Object],[object Object]
Birthday Attack ,[object Object],[object Object],[object Object],[object Object],[object Object]
Mathematical Attacks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mathematical Attacks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mathematical Attacks ,[object Object],[object Object],[object Object],[object Object]
Brute Force Attack ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Man-in-the-Middle Attack ,[object Object],[object Object],[object Object],[object Object],[object Object],Victim Attacker Server
Dictionary Attack ,[object Object],[object Object],[object Object],[object Object],[object Object]
Replay Attack ,[object Object],[object Object],[object Object],[object Object]
Password Cracking ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Password cracking programs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Cryptography Lecture by Sam Bowne

  • 1. Hands-On Ethical Hacking and Network Defense Chapter 12 Cryptography Last modified 11-6-08
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