Its simplicity and its cryptographic strength compared to simple substitution and Vigènere (a polyalphabetic substitution cipher) made it an immediate success as a field cipher, used by the ...

The lines were encrypted with a polyalphabetic substitution cipher using six symbols for each English letter. A short sample of the original text appears in the illustration.

Cold War Russian cipher may finally be solved Date: February 2, 2016 Source: Taylor & Francis Summary: The Soviet VIC cipher used in the early 1950s, long known for being complex and secure, may ...