A5 Papers

[John Young]

Once again we're trying to obtain copies of the following
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.

  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).