ASN.1 ( Abstract Syntax Notation One) Definition

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May 17, 2008

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ASN.1

-- 6 Vendor Reports

ALSO CALLED: Abstract Syntax Notation One
DEFINITION: ASN.1 (Abstract Syntax Notation One) is a standard way to describe a message (a unit of application data) that can be sent or received in a network. ASN.1 is divided into two parts: (1) the rules of syntax for describing the contents of a message in terms of data type and content sequence or structure and (2) how you actually encode …
Definition continues below.

Recent Vendor Reports on ASN.1
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Key Steps to Securing Your Organization and Evicting a Hacker sponsored by Foundstone, Inc. PODCAST: Posted: 30 Apr 2008 \| Premiered: 30 Apr 2008, 09:00 EDT (13:00 GMT) SUMMARY: This podcast presents key steps that you can utilize to better secure your organization from a security breach and what to do in the event of a malicious attack. TOPICS: Application Security \| Data Security \| Disaster Planning \| Disaster Recovery \| Hackers \| Network Security \| OSI Protocols

Delivering Comprehensive Security for your Web Applications sponsored by F5 Networks WHITE PAPER: Posted: 28 Apr 2008 \| Published: 01 Nov 2007 SUMMARY: Most organizations are familiar with application security and Web Application Firewalls, realizing that secure application access and delivery are necessities. There are many factors that are driving this push, most notably led by the "we... TOPICS: Application Deployment \| Application Security \| Firewall Appliances \| OSI Protocols \| Web Application Security \| Web Switches

Hybrid IT Management: Getting the Best from Open & Closed Source sponsored by GroundWork Open Source, Inc. WEBCAST: Posted: 02 Apr 2008 \| When: Available On Demand SUMMARY: Learn how IT can maintain high service levels previously delivered by software from HP OpenView and IBM Tivoli but at significant cost savings. TOPICS: Application Deployment \| Open Source Software \| Open Systems Standards \| Systems Management Services \| Systems Management Software \| TCO

ROC Maestro for Open Systems - Simplify Job Scheduling Administration sponsored by ROC Software SOFTWARE LISTING: Posted: 26 Mar 2008 \| Published: 01 Mar 2008 SUMMARY: ROC Maestro for Open Systems, a key component of the ROC Enterprise Suite™, provides a very easy method for scheduling and managing workloads, processes, dependencies and events across complex, heterogeneous IT environments. TOPICS: Job Scheduling \| Linux \| Network Management \| Open Source Software \| Open Systems \| Open Systems Standards \| Server Consolidation \| UNIX

6 Myths about Open Source sponsored by Ingres WHITE PAPER: Posted: 03 Mar 2008 \| Published: 01 Jan 2007 SUMMARY: There has long been concern that open source is a niche IT option, unable to support mission-critical applications, and that any update to the code is unregulated. This white paper challenges these concerns. TOPICS: Business Intelligence \| Collaboration \| Data Centres \| Intellectual Property \| Linux \| Open Source Software \| Open Systems Standards \| Software Asset Management \| Vulnerabilities

Envox 6 Communications Development Platform sponsored by Envox Worldwide DATA SHEET: Posted: 21 Jun 2004 \| Published: 18 Jun 2004 SUMMARY:Envox 6 is an open, standards-based platform with integrated software components that significantly reduce the time, cost and complexity of developing and deploying voice solutions. TOPICS: Open Systems Standards \| Software Development Tools \| Voice Communications Software

ASN.1 DEFINITION (continued): … each data item in a message. ASN.1 is defined in two ISO standards for applications intended for the Open Systems Interconnection (OSI) framework:

ISO 8824/ITU X.208 specifies the syntax (for example, which data item comes first in the message and what its data type is)
ISO 8825/ITU X.209 specifies the basic encoding rules for ASN.1 (for example, how to state how long a data item is)

Here's an example of a message definition specified with ASN.1 notation:

    Report ::= SEQUENCE {        author       OCTET STRING,        title       … 
ASN.1 definition sponsored by SearchCIO-Midmarket.com, powered by WhatIs.com an online computer dictionary

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