SIGINT CHATTER

This year will mark the 21st anniversary of our Enigma simulator and entering the 20th year of cryptologic challenges. It all started in ear...

Operation Tinkel Bell has moved to the Cipher Machines and Cryptology website. The move offers more flexibility for HTML and maintenance, an...

Click for more We're back with Podcast Nuggets, but this time only two podcasts due to some radio silence. You're nevertheless in ...

Ralph Simpson was speaker of the month at the California Historical Radio Society where he gave a talk on the early development of encryptio...

TSEC/KL-7 © Dirk Rijmenants The TSEC/KL-7 crypto machine was developed by the Army Security Agency (ASA) and Armed Forces Security Agency (A...