TheCodeBreakers
Stein, K., 236
Stimson, H. L., 4, 6, 178, 183, 457
Straddling checkerboard, 357-359, 368, 376
Street, G., 39-40
Strip cipher. See CSP-642; M-
138
Strong, L. C., 437 Subh al-a 'sha, 80 Substitution
basic solution of, 82-83 compared with transposition, 404 definition, xi See also Monoalphabetic substitution;
Polyalpha-betic substitution; Transposition Suetonius, 77 Suez crisis, 398-399 Superencipherment, definition,
xiv
See also Enciphered code Superimposition. See Kerck-
hoflfs superimposition Svensson, E., 11 Sweden, 210, 256-263, 363-
364 SYKO, 240, 241
Tableaux, 95-96, 98-99 Tabula recta, 95-96 Tabulators. See computers and
tabulators Tannenberg, Battle of, 348-
349 T.D.S. See Time-division
scramble
Technical Operational Division, 279-280, 281, 286,
288
Telconia, 129
Telegraph, 111-114, 154-155 Telegraphic Japanese, 27 Telephone secrecy, 289-298, 423
See also Wiretapping Teletype Corporation, 210 Teletypewriter, 193-198, 237-
238