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 ...

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 ...

You can make a message secret in countless different ways. One common way is to use a substitution cipher, in which one letter is substituted for another. Another is to employ a transposition ...

The message was encoded with a simple substitution cipher, one of the most basic ways to encrypt something. In a cipher of this type, the alphabet is scrambled, with each letter in the alphabet ...

The alleged code table and substitution cipher used in the “treason letter.” Substitution ciphers are the easiest to break, because letter-frequency analysis of text of any modest length ...

Puzzle #226: Can you decipher the substitution cipher? Can you solve this week’s logic puzzle, On reflection? Plus the answer to puzzle #225 ...