As the kepatihan cipher system records primarily the skeletal melody line ( or balungan ), the wide range of improvisational techniques performed upon this line by the various instruments in gamelan are not represented.
32.
Further, as shown below, even in 1926 the Army's top cryptologist was developing a cipher system that had only about 2, 500 groups and those were actually just 10 charts of about 250 groups each.
33.
The technique encrypts pairs of letters ( " bigrams " or " digrams " ), instead of single letters as in the simple substitution cipher and rather more complex Vigen�re cipher systems then in use.
34.
His report on the subject did not result in the changing of the cipher system, merely resulting in a reprimand for himself, as he had searched into reports which were only for high level staff.
35.
However, OKW / Chi did have a number of successes, but generally its cryptologic successes were in what was considered by TICOM to be low and " medium grade " or " medium security " cipher systems.
36.
Wadsworth's cipher system involved a set of two disks, one inside the other, where the outer disk had the 26 letters of the alphabet and the numbers 2 8, and the inner disk had only the 26 letters.
37.
He practised cryptography, and his cipher systems were used by the Yugoslav army until World War II . When the Second World War broke out in Yugoslavia, he was again called into the army and the Germans captured him.
38.
In rapid succession, every one of ( the ) cipher systems went dark, " the report said . " This dreary situation continued up to the Korean War, denying American policymakers access to vital decrypts in this critical period ."
39.
For transformation involving reasonable number of n message symbols, both of the foregoing cipher systems ( the Lucifer cipher system, and has become the standard for national data encryption standards such as the Data Encryption Standard and the Advanced Encryption Standard.
40.
The cipher system that Uesugi used is basically a simple substitution usually known as a Polybius square or checkerboard . The i-ro-ha alphabet contains forty-eight letters, so a seven-by-seven square is used, with one of the cells left blank.
