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23 March 2013

What is Simp?

Jean-Jacques Quisquater sends:

Here is a question from CRYPTOLOG June 1975, p. 18:

"The reader who submitted the following item picked it up at GCHQ in 1971 but does not remember who originated it. No one here, including UKLO people whom we asked, knows anything about it, or even what "Simp" means. Does any reader have any more details?"

Answer: use Google with "SIMP table" and here it is:

or better

Simplified Integrated Modular Phrase (SIMP)