HP VPN Server Appliance sa3110/sa3150/sa3400/sa3450 - Virtual Private Networking Concepts Guide

Cryptographic Systems and Encryption Terminology
2-6 Hewlett-Packard Company Virtual Private Networking Concepts Guide
Related
Related Related
Related
Information
InformationInformation
Information
3DES (page 2-7)
Data Encryption Standard (DES) (page 2-4)
Outer Cipher Block Chaining (CBC) (page 2-8)
Algorithm
AlgorithmAlgorithm
Algorithm
Clear
Clear Clear
Clear
Text
TextText
Text
After
After After
After
First
First First
First
Encrypt
Encrypt Encrypt
Encrypt
E
EE
E
After
After After
After
First
First First
First
Decrypt
Decrypt Decrypt
Decrypt
D
DD
D
After
After After
After
Second
Second Second
Second
Encrypt
Encrypt Encrypt
Encrypt
E
EE
E
Triple Pass DES
(Key Space = 2*26
=52)
AT K1 = 3
DW
K2 = 5
YR
K1 = 3
BU
3DES
(Key Space = 3*26
=78)
AT K1 = 3
DW
K2 = 5
YR
K3 = 4
CV