Avaya Configuring Data Encryption Services User Manual Page 5

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117386-B Rev 00
v
Contents
About This Guide
Before You Begin .............................................................................................................. xi
Conventions ......................................................................................................................xii
Acronyms .........................................................................................................................xiii
Bay Networks Technical Publications ..............................................................................xiii
Bay Networks Customer Service .....................................................................................xiv
How to Get Help ..............................................................................................................xiv
Bay Networks Educational Services ................................................................................ xv
Chapter 1
Data Encryption Overview
Data Encryption Architecture ..........................................................................................1-1
Data Encryption Standard (DES) .............................................................................1-2
40-Bit and 56-Bit Encryption Strengths .............................................................1-2
Message Digest 5 (MD5) .........................................................................................1-3
WAN Encryption Protocol (WEP) .............................................................................1-3
Security and Data Encryption .........................................................................................1-3
Site Security .............................................................................................................1-4
Configuration Security ..............................................................................................1-4
Encryption Keys ..............................................................................................................1-4
Random Number Generator (RNG) .........................................................................1-5
Node Protection Key (NPK) ......................................................................................1-6
Generating an NPK ...........................................................................................1-6
Entering the NPK on the Router ........................................................................1-6
Choosing a Secure Shell Password ...................................................................1-7
Entering the NPK into Site Manager ..................................................................1-7
Long-Term Shared Secret (LTSS) ............................................................................1-7
Master Encryption Key (MEK) ..................................................................................1-8
Traffic Encryption Key (TEK) ....................................................................................1-8
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