The state, realm, or domain of ciphers; the world or system of coded communication.
From 'cipher' + '-dom' (a domain or realm, as in kingdom, Christendom). Creates an abstract realm where ciphers rule.
Adding '-dom' to 'cipher' transforms it from a tool into a complete world—'cipherdom' is where secrets live, suggesting that coded communication has its own civilization with its own rules and citizens.
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