A Revolutionary Leap
The VIC cipher can be regarded as the evolutionary pinnacle of the Nihilist cipher family.
The VIC cipher has several important integrated components, including mod 10 chain addition, a lagged Fibonacci generator (a recursive formula used to generate a sequence of pseudorandom digits), a straddling checkerboard, and a disrupted double transposition.
Until the discovery of VIC, it was generally thought that a double transposition alone was the most complex cipher an agent, as a practical matter, could use as a field cipher.
Read more about this topic: VIC Cipher
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