As a cipher clerk typed a message on the keyboard in plain German, letters were illuminated one by one on the lamp board.
Thus, our structure has the fast diffusion of the Substitution Permutation Networks (SPNs) structures, which improves the security of lightweight block cipher in Feistel-type structures.
DNA-Crypt encodes information using a substitution cipher and two types of error-correcting codes, namely, Hamming [ 14] and WDH [ 30].
I used to love dungarees until I saw Meryl Streep in that benighted film, Mamma Mia! and decided they had become a cipher for a particular type of "kookie" middle-aged female character beloved of the entertainment industry.
For many years this type of cipher was thought to be impregnable and was known as le chiffre indéchiffrable, literally "the unbreakable cipher".
In other words, Polanski boils his protagonist down to a type, a cipher, whose character (in the normal sense of the word the nature of a person) and preexisting fund of knowledge and experience are utterly filtered out.
In other words, Polanski boils his protagonist down to a type, a cipher, whose character (in the normal sense of the word — the nature of a person) and preexisting fund of knowledge and experience are utterly filtered out.
Among its online displays is a French cipher wheel of a type described by Thomas Jefferson; the "black chamber," a code-breaking operation in the 1920's; Allied and enemy cipher machines of World War II; and perhaps the greatest "machine" of all, the American Indian "code talkers," the Navajos and other tribal peoples whose communications in both world wars were never broken.
In traditional permutation substitution architecture type image cipher, the permutation and substitution generally are two independent parts, and the diffusion performed by substitution is more like the cipher block chaining mode of operation.
