Tag Archives: Cryptography

Crack for Charity — GCHQ launches 'Puzzle Book' Challenge for Cryptographers

The UK’s Signals Intelligence and Cyber Security agency GCHQ has launched its first ever puzzle book, challenging researchers and cryptographers to crack codes for charity.

Dubbed “The GCHQ Puzzle Book,” the book features more than 140 pages of codes, puzzles, and challenges created by expert code breakers at the British intelligence agency.
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Ranging from easy to complex, the

Researchers Demonstrated How NSA Broke Trillions of Encrypted Connections

In the year 2014, we came to know about the NSA’s ability to break Trillions of encrypted connections by exploiting common implementations of the Diffie-Hellman key exchange algorithm – thanks to classified documents leaked by ex-NSA employee Edward Snowden.

At that time, computer scientists and senior cryptographers had presented the most plausible theory: Only a few prime numbers were