2009 News
-- 5th August 2009 --
Performance Measurements of Messaging Protocols over HF Radio
This white paper sets out and analyses the results of a measurements of various messaging protocols over HF Radio. HF Radio has unusual performance and reliability characteristics, which has led to specific application protocols being developed. This paper finds that three of the four protocols analysed perform well. It concludes with a discussion of the best choice of messaging protocol for various types of deployment.
-- 9th June 2009 --
STANAG 5066 Performance Measurements over HF Radio
This white paper sets out the results of measurements done by Isode of STANAG 5066 over military HF Modems and emulated HF Radio. These test show that good line utilization can be achieved (83-94 %) for speeds ranging from 75 bits/second to 9600 bits/second. To achieve this, care must be taken with how the application uses STANAG 5066.
-- 28th May 2009 --
Using Isode's Messaging and Directory Applications with a Data Diode
Data Diodes are low level hardware devices, with very high assurance, that allow data to flow in one direction while preventing data from flowing in the opposite direction. This white paper shows how Isode applications can be used in conjunction with a Data Diode to give high assurance one way flow of data.
-- 8th April 2009 --
Vendor Independent XML Security Policy Information File format announced
Cadmidium, Clearswift, CommPower, eB2Bcom, Isode, JSC, Nexor and SMHS collaborate to bring to market a vendor independent XML SPIF (Security Policy Information File) format to facilitate multi-vendor support of information exchange using Security Labels and invite other organizations to become equal partners in this initiative.
-- 17th March 2009 --
Apple's iPhone & Making Mobile Email work well using IMAP
Apple's iPhone has an excellent email client that is an important
part of the platform. The iPhone's sophisticated use of IMAP (in
contrast to other widely available IMAP clients) is one reason
that the email client works so well. This white paper looks at
how iPhone uses IMAP to meet mobile messaging requirements, and
looks at other IMAP capabilities that could be used to support
mobile messaging.
-- January 27th, 2009 --
File Transfer by Email
File Transfer by Email can be useful for moving data between systems when standard file or data transfer mechanisms are not available. In particular it is useful for supporting Directory Replication, as described in the Isode white paper Directory Replication by Email and over 'Air Gap'. This paper looks at requirements for File Transfer by Email, and describes the architecture of Isode’s solution.
-- January 7th, 2009 --
Operating XMPP over Radio and Satellite Networks
XMPP, the Internet Standard eXtensible Messaging and Presence Protocol is being widely adopted for Instant Messaging (IM), Group Chat and Presence services in military networks. This paper starts by looking at the military tactical requirements for IM, Group Chat and Presence. It discusses briefly why XMPP is ideal for these services, and also as a building block for situational awareness systems and in support of voice and video communication.