At 01:16 PM 9/27/2002 +0200, Ralf-P. Weinmann wrote: >Is A5/3 deployed yet?
Kasumi (in the form of "f8" (ciphering) and "f9" (integrity) is beginning to be deployed in UMTS (WidebandCDMA) mobiles as we speak. But an exact specification of how to use Kasumi as A5/3 has only just been agreed; it will be 6-12 months (at least) before any significant amount of equipment, either fixed or mobile, will be produced and deployed, and it will be a couple more years after that before there will be significant probability that a call is encrypted using A5/3. >As for A5/3, I'm not really sure what key length network operators are/will be >using, 64-128 bits are allowed in the design requirements documentation. The >specification should be available on the 3GPP website. A5/3 is based on >Kasumi. A5/3 will be stuck at 64 bit keys for the forseeable future, due to compatibility issues in the protocol. f8 and f9, on the other hand, already use 128-bit keys. regards, Greg. Greg Rose INTERNET: [EMAIL PROTECTED] Qualcomm Australia VOICE: +61-2-9817 4188 FAX: +61-2-9817 5199 Level 3, 230 Victoria Road, http://people.qualcomm.com/ggr/ Gladesville NSW 2111 232B EC8F 44C6 C853 D68F E107 E6BF CD2F 1081 A37C --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]