For decades, Elizebeth Smith Friedman worked in near-total secrecy, cracking codes that shaped the outcome of two world wars. Recently declassified, the full extent of her story is still coming to ...
GigaWiper is a destructive backdoor that combines multiple wiping and ransomware-like capabilities into a single operational ...
A Python implementation of the classical Rail Fence cipher with encryption and decryption support. Built for educational purposes to understand zigzag-based transposition and historical cryptographic ...
Microsoft Threat Intelligence identified a large-scale npm supply chain attack affecting 32 maliciously modified packages across more than 90 versions under the @redhat-cloud-services npm scope. The ...
Why cryptography matters for security and CTFs The two main classes of cryptography and their uses RSA, and some of the uses of RSA 2 methods of Key Exchange Notes about the future of encryption with ...
To decrypt Caesar’s cipher, D, you calculate this for every letter: As you can tell, it’s not very secure. With 25 total shifts you just have to shift the text 25 times until you find the decrypted ...
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