Cryptography

~/tags

~/blog/kryptos-k4
// August 19, 2025
Kryptos K4 Solved After 30 Years
Cryptography Vigenère-Cipher Software-Engineering Cipher Machine-Learning Kryptos
A groundbreaking look at how a 30-year CIA cipher was finally cracked using modern software engineering, machine learning, and code-driven cryptanalysis.
~/blog/kryptos-k1
// July 29, 2025
Decrypting Kryptos K1 using Vigenère Cipher
C#Cryptography .NET Vigenère-Cipher Software-Engineering Cipher Kryptos
Learn how to decrypt the first panel of the CIA’s Kryptos sculpture using a keyed Vigenère cipher in C#. This article walks through the cipher mechanics, builds a custom tableau, and decodes the hidden message—all implemented with clear, modern C# code.

Kryptos K4 Solved After 30 Years