Mounir Antiques

Old French dishes 35 pieces…

We still have more and more … :D

Old antique copper big size plates…






#انتيكات

Writing on class..

A Hagelin CX-52 Cipher Machine

Pin-and-lug cipher machine with irregular stepping

CX-52 was a mechanical pin-and-lug cipher machine, developed around 1952 by the Swede Boris Hagelin and manufactured first by AB Cryptoteknik in Stockholm (Sweden) and later by Crypto AG in Zug (Switzerland). It was intended as a replacement for earlier machines, like the C-446 and M-209. CX-52 has an irregular movement of the cipher wheels, and is considered the more secure version of the C-52. At the time, CX-52 was virtually unbreakable by the NSA.

The machine was available in a civil (grey) and military (green) variant, which were functionally identical. When used properly, the CX-52 was highly secure and very difficult to break by the US National Security Agency (NSA). It was possible however, to set it up in such a way that it had a short cycle (period), in which case it was easy to break. This was fixed in the CX-52M, which was modified by NSA cryptomathematician Peter Jenks, to always produce a long cycle, albeit one that was predictable by NSA. It looked safe from the outside, but was in fact weaker than before


https://www.cryptomuseum.com/crypto/hagelin/cx52/index.htm


CX-52 #1952

Syrian church candlestick from the 17 century.
شمعدان عدد 2 سوري كنسي القرن السابع عشر …