Real Time Cryptanalysis of A5/1 on a PC. 29 December 2009.
GSM A5 Files Published on Cryptome 27 April 2000. Thanks to Adi Shamir. This paper was presented at the Fast Software Encryption Workshop 2000, April 10-12, 2000, New York City. It supercedes an earlier version, "Real Time Cryptanalysis of the Alleged A5/1 on a PC (preliminary draft)," by Alex Biryukov and Adi Shamir, dated December 9, 1999. Schneier on Security. J2ME Cryptography. The absence of standard and familiar Java APIs presents one of the biggest obstacles when developing for Java 2 Micro Edition (J2ME).
Since J2ME targets much smaller devices, it lacks many libraries and features that are normally available in larger Java installations. On Java 2 Standard Edition (J2SE) and Java 2 Enterprise Edition (J2EE), the Java Cryptography Architecture and Java Cryptography Extension help streamline the process of adding security to a project. The J2ME platform, however, lacks crypto APIs. Of course, many J2ME devices, such as Palm handhelds, aren't suited for common cryptographic functions. Their constrained RAM and processors can make operations, such as public key cryptography, infeasible.