cryptography Archives - Spray on Security

Kryptos K4 is not a Vigenere Cipher

Post author:Mireya Jurado
Post published:August 1, 2021
Post category:computer security cybersecurity

The fourth passage of the Kryptos sculpture has been unsolved for over 21 years. If you are one of the professional cryptanalysists and amateur enthusiasts who have attempted to solve this puzzle, you may be wondering if Kryptos passage 4 (K4) can be solved by a double key Vigenere cipher. The answer seems to be no. Kryptos cipher 4 is not a Vigenere cipher.I'll walk through how I attempted to brute force the keys for…

Resources on cryptography

Post author:Mireya Jurado
Post published:July 29, 2019
Post category:computer science computer security privacy

I've put together a few of my favorite resources on cryptography. My general recommendation is to watch lecture videos. Academic papers and textbooks can be quite dense, but authors clear things up in their PowerPoint presentations and videos. I've included links to some of my favorite talks but I also list some courses and textbooks. These resources are about the math and theory behind cryptography and don't address implementation. Fundamental Cryptography Here are some resources on…