Low Cost IP Private Branch Exchange 'PBX'

Security for Private Branch Exchange Systems

Each bulletin presents an in-depth discussion of a single topic of significant interest to the information systems community. Bulletins are issued on an as-needed basis and are available from ITL Publications, To be placed on a mailing list to receive future bulletins, send your name, organization, and business address to this office. You will be placed on this mailing list only. Hacker attacks...

A Low Cost Private Key Reissuing Model

Secure Session Key Exchange for Mobile IP Low Latency Handoffs

Mobile IP Low Latency Handoffs[1] allow greater support for real-time services on a Mobile IPv4 network by minimising the period of time when a mobile node is unable to send or receive IP packets due to the delay in the Mobile IP Registration process. However, on Mobile IP network with AAA servers that are capable of performing Authentication, Authorization, and Accounting(AAA) services, every ...

Low-Cost IP Core Test Using Tri-Template-Based Codes

A tri-template-based codes (TTBC) method is proposed to reduce test cost of intellectual property (IP) cores. In order to reduce test data volume (TDV), the approach utilizes three templates, i.e., all 0, all 1, and the previously applied test data, for generating the subsequent test data by flipping the inconsistent bits. The approach employs a small number of test channels I to supply a large...

A Low-Cost Attack on Branch-Based Software Watermarking Schemes

In 2005, Ginger Myles and Hongxia Jin proposed a software watermarking scheme based on converting jump instructions or unconditional branch statements (UBSs) by calls to a fingerprint branch function (FBF) that computes the correct target address of the UBS as a function of the generated fingerprint and integrity check. If the program is tampered with, the fingerprint and integrity checks chang...