21. Tiltman was an early and persistent advocate of British cooperation with the United States in cryptology . 22. Kahn, then a newspaper journalist, was contracted to write a book on cryptology in 1961. 23. He served as editor of the " Journal of Cryptology " from 1986 to 2001. 24. The cryptology project might have dissolved had the United States not entered World War I in April 1917. 25. The IACR publishes the Journal of Cryptology , in addition to the proceedings of its conference and workshops. 26. Professor Seberry was the first person to teach cryptology at an Australian University ( University of Sydney ). 27. In Cryptology his current focus is on Secure message transmission and Provable security of cryptographic protocols / primitives. 28. However, the key, which is said to break Kerckhoffs's principle, a rule of cryptology . 29. These groups, which conduct research in cryptology and information operations, comprise IDA s Communications and Computing FFRDC. 30. COSIC is also coordinating ECRYPT, a European-wide Network of Excellence in the area of cryptology and watermarking.