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Challenge Coding with the Enigma machine

Introducing Secure Sockets Layer (SSL)

Implementing PGP email security with GPG

Exploring the security of SSL with Wireshark

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Lisa is an associate professor in the Information Technology department at Pennsylvania College of Technology, in Williamsport, PA. Courses she has taught during the past 13 years include: networking, security, biometrics, technical support, protocol vulnerabilities (using Wireshark), CCNA Security, and VoIP and Unified Communications. She holds an MS from University of Maryland University College (UMUC) along with numerous other certifications. She has had training in forensics, networking, steganography, and network security. She is involved with various volunteer activities, has evaluated professional journals, and is an award-winning speaker. Lisa and her husband Mike enjoy bike riding, watching movies, and traveling.

4. Hash Algorithms, Message Digests, and Authentication

Author – Ethical Hacking: Penetration Testing

– Are you ready for your first challenge? Were going to go to the Enigma machine simulator. Your challenge will be to decrypt the message. But first Im gonna show you how it works. At the website you can see the simulator. On the top, you see the rotors. On the lower right, you see the steckers. That would represent the tiny switchboard on the image of the Enigma. Were not going to do anything with the steckers. Up on the rotors, were gonna alter them so they say F-U-N. For the input, type PASSWORD. And now, you see the output, alright. Now your challenge. Open a new session. Now youll put the same rotor selection, F-U-N. And heres your code, decrypt that code. This should take you no more than three minutes. Be sure to check back to see the solution. Good luck!

Introducing common cryptographic concepts and terminology

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Looking deeper into message digests

Investigating email privacy and authentication concerns

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Providing confidentiality, integrity authentication, and non-repudiation

Understanding why encryption is necessary

Though technology changes rapidly, the need to assure the confidentiality, integrity, authenticity, and accountability of information does not. Understanding the basics of cryptography is fundamental to keeping your networks, systems, and data secure. In this course, Lisa Bock reviews the historical and present-day uses of encryption, including techniques such as symmetric and asymmetric encryption, algorithms, and hashing. She also reviews message digest and passwords and provides a demonstration of a typical SSL transaction. By the end of this course, youll have a solid understanding of what it takes to move and store data securely.

Diving into hash algorithms and message digests

4. Hash Algorithms, Message Digests, and Authentication

Challenge: Coding with the Enigma machine

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What you should know before watching this course

3. Asymmetric Encryption and Digital Signatures

Comparing passive and active network attacks

3. Asymmetric Encryption and Digital Signatures

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Understanding passwords, hash, salt, and rainbow tables

Solution: Coding with the Enigma machine

Overview and cryptographic requirements

Working with the Advanced Encryption Standard (AES)

Exploring Internet Protocol Security (IPsec)

Dissecting the public key algorithms: RSA and Diffie-Hellman

Dissecting block and stream ciphers

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Challenge: Coding with the Enigma machine

Since 2004, Lisa Bock has been teaching IT, everything from forensics to network security.

Practice while you learn with exercise files

From the course:Learning Cryptography and Network Security

Reviewing the history of cryptography

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Creating key pairs for the Diffie-Hellman algorithm

Dissecting the authentication header

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