Cryptology - Unofficial St. Mary's College of California Web Site

5.10. EXERCISES 87
17. General Pierre G.T. Beauregard, departmental commander of South Carolina,
Georgia, and Florida forces of the Confederate Army sent Maj. Gen.
Patton Anderson the following on 7 April 1864 [Gaddy]
“General:
I inclose you herewith the following simple cipher for future use in
important telegrams to these headquarters. For very important telegrams
the diplomatic cipher should be used. Please inform me of its
reception.
[Inclosure]
[end quote]
A by M H by R O by U U by F
B by K I by S P by I V by Q
C by O J by V Q by G W by D
D by A K by H R by Y X by T
E by N L by X S by E Y by B
F by C M by P T by Z Z by J
G by W N by L
(a) Using this cipher, ORMYXNEZUL, EUFZR OMYUXSLM gives Beauregard’s
location. Where was he
(b) Using this cipher, Anderson’s location was KMXADSL CXUYSAM. Where
is this
18. (a) Here is a cipher sent during the controversy about the Florida electoral
returns following the 1876 Presidential election. [Glover, page
E-48].
Jacksonville, 13.
GEO. P. RANEY: 1:12 a.m., Nov. 14.
Y e e i e m n s p p a i s s i t p i n s i t i t a a s h s h y y p
i i m i m n s s s p e e n a a a i m a e n n s y i s n p i n s i m i
m p e a a i t y y e n.
DANIEL.
As the New York Tribune put it, “It was evident, on a slight examination,
that each letter in this cipher was not a substitute for
another letter. . . . Probably, then, each letter in the cipher alphabet
consisted of two characters.” Why
(b) The Tribune then continued with a second message, “which, being
partly in plain English, seemed to promise a clew [sic].”