January 2004
Intermediate to advanced
536 pages
13h 2m
English
Content preview from IPv6, 2nd Edition
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104 Part Two • IPv6 Protocols
In other words, the entity associated with the public key cannot
deny having signed the message. This is called nonrepudiation
and is an important feature of digital signatures.
There are other mechanisms for doing digital signatures, but RSA is prob-
ably the most widely used one and is implemented in the most popular
Internet products.
6.4 IPsec: The Protocols
IPsec is a security tunneling protocol, defining a mechanism that allows
a node to encrypt and/or authenticate packets and encapsulate the
secured packets (which may now be literally indecipherable, having been
encrypted) into new packets. Figure 6–1 illustrates the ...
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