Motorola Wireless Broadband Platform Manuel d'utilisateur

iSecurity and the MotorolaCanopy™ Wireless BroadbandPlatform(Advanced Security Techniques)

6Decrypting cipher converts the data back to its original form called plain text.The algorithms for DES described in the DES standard specifies both e

7.In comparison, DES keys are 56 bits long, which means there are approximately 7.2 x1016 possible DES keys. Thus, there are on the order of 1021 time

8internal round structure appears to have good potential to benefit from instruction-level parallelism.”5AES is commercially available as an option to

9Motorola Canopy50 E Commerce DriveSchaumburg, IL 60173www.motorola.com/canopyMOTOROLA and the Stylized M Logo areregistered in the US Patent & Tr

iiTABLE OF CONTENTSIntroduction...

iiiList of AcronymsAES...Advanced Encryption StandardAP...

ivNOTICEThe information in this publication is subject to change without notice. Motorola shall not beliable for technical or editorial errors or omi

1INTRODUCTIONUntil just recently, it would have been unimaginable for medical institutions to exchangehigh resolution digital imagery over wireless ne

2PASSIVE MONITORINGAs mentioned previously, it is relatively easy to monitor clear text transmissions over anIP network. Unfortunately, most of the t

3Today, the Canopy system incorporates a flexible security model that supports a widevariety of system configurations ranging from a fully open system

4Table 1. The Authentication ProcessStepDescription of Task1When an SM attempts to enter the Canopy networkit sends a registration request to the AP.

5Key/NumberDescriptionSession KeyThe session key is calculated separately by theSM and the BAM, using the AuthenticationKey, the ESN, and the random n