Cracking an old ZIP file to help open source the ANC’s “Vula” secret crypto code

The web content reveals the fascinating story of how code played a crucial role in the dismantling of the apartheid system in South Africa. The decryption of a 30-year-old PKZIP file containing encrypted communication led to the revelation of the ANC’s secure communication system during Operation Vula. Tim Jenkin, the mastermind behind the encryption system, unknowingly left the code inaccessible by setting a forgotten password. Through a known plaintext attack using bkcrack, the code was finally decrypted, showcasing the unique methods used for secure communication. The decrypted source code allowed for a deeper understanding and appreciation of the ANC’s efforts.

https://blog.jgc.org/2024/09/cracking-old-zip-file-to-help-open.html

To top