We're trying to obtain copies of the following confidential papers and would appreciate those at universities or other repositories to check to see if the papers are available there. Simon Shepherd has written that he regrets he cannot release them, and IEE publications writes that the org does not have them (IEE is the UK Institute for Electrical Engineering, or some such). S J Shepherd, "Cryptanalysis of the GSM A5 Cipher Algorithm", IEE Colloquium on Security and Cryptography Applications to Radio Systems, Digest No. 1994/141, Savoy Place, London, 3 June 1994, (COMMERCIAL-IN-CONFIDENCE). S J Shepherd, "An Approach to the Cryptanalysis of Mobile Stream Ciphers", IEE Colloquium on Security and Cryptography Applications to Radio Systems, Digest No. 1994/141, Savoy Place, London, 3 June 1994, (COMMERCIAL-IN-CONFIDENCE).
