Understanding RSA: The Foundation of Modern Asymmetric Cryptography 🔐

#cryptology, #cryptography, #cryptanalysis, #lecture, #course, #tutorial

In this video, we show the basics of cryptology (cryptology = cryptography and cryptanalysis).

This video here gives an introduction to modern asymmetric cryptography. We discuss the RSA (Rivest, Shamir, and Adleman) cipher. First, we give a short introduction of asymmetric cryptography, which was first described by Diffie and Hellman. Then, we describe in detail how the RSA algorithm works. We first show how the key generation of public and private keys work. Then, we show how to encrypt and decrypt (and sign) with the generated keys. After that, we show the homomorphic property of RSA and use it for an attack. Then, we show how to generate keys and how to encrypt and decrypt using RSA in CrypTool 2. Finally, we show an attack on RSA implemented in CrypTool 2 which is based on shared primes in RSA keys.

To see all videos in the "Basics of Cryptology" series, use this playlist: https://www.youtube.com/playlist?list=PLMuvAbyIl0PT6zaRVpK0FCSNMgwAOckTt

If you are interested in details about CrypTool 2, you may have a look at this video here, which gives a short introduction: https://www.youtube.com/watch?v=dELT2-Vgsr8

Finally, you may download the latest version of CrypTool 2 here: https://www.cryptool.org/en/ct2/downloads Like what I do 😄? Help fuel my crypto obsession 🎓 — buy me a coffee here☕— thx: https://buymeacoffee.com/cryptographyforeverybody