Abstract: Orthogonal frequency division multiplexing passive optical network (OFDM-PON) has superior anti-dispersion property to operate in the C-band of fiber for increased optical power budget.

Abstract: This letter proposes three novel substitution box (S-box) architectures for lightweight block ciphers. The proposed S-box architectures are based on the Boolean decomposition to achieve the ...

Iranian “numbers stations” broadcasting to nearby countries have reportedly started sending encrypted messages made up of numbers, words, or letters. This is according to a report by Russian Arms ...

Enigma cipher machines have endured in the minds of history buffs and cryptography hobbyists for more than a century, still discovered at dusty French flea markets and dredged up from under beach ...