Internet Engineering Task Force

Abstract: The advent of mobile IP communication has opened up several new areas of mission critical communication applications. But the bandwidth and reliability constraints coupled with handover latency are posing some hurdles which need to be overcome before real world mobile IP applications, with low tolerance for data loss, can be deployed. In this paper, we analyze the unreliability of existing information collection methods in the real-world MobilelP environment. We focus on this problem and propose a novel network management model that anticipates the wireless mobile entities and uses SNMP. The key idea of this model is the introduction of a store-and-forward type Managed Object (MO). During the period of unreachability between the Manager and the agent, the data is cached at the agent until the connectivity recovers. In our experiment we used a prototype implementation in real-world wireless communication field, and showed the effectiveness of our proposed method.

Abstract: Standards-development organizations (SDOs) comprise participants from large and small companies, academia, and the open source community. The participants come with varying backgrounds with regard to copyright and patents in the areas that are being standardized, and the SDOs must deal with these issues in ways that both satisfy the participants (and their employers) and result in useful standards. Each SDO - including the IEEE - has its own intellectual property (IP) policy. This issue, we look at how the IETF handles IP, in an overview cowritten by an attorney who has represented the IETF for some years and the current IETF Chair.

Abstract: In many scenarios, users need to be able to ensure and prove the existence and validity of data, especially digitally signed data, in a common and reproducible way over a long and possibly undetermined period of time. Especially in the light of the recent developments in crypto analysis around SHA-1 but also with the used public key algorithms and their parameters, it has been found that cryptographic algorithms are important but can not provide the whole solution. They must be applied in standardized data formats and concepts which take into account that some of the algorithms might get broken at a future point in time [1]. This has lead to the definition of a new standard to ensure the long-term security and integrity of data. This document explains the context and application of the recently by the IETF defined standard “Evidence Record Syntax (ERS)” [3] for the long-term conservation of digital signed documents and non-repudiation of their origin and integrity. It provides some technical background, reviews the mathematical concepts used in this new international standard and analyzes the process of signature conservation.