December 2001
Intermediate to advanced
656 pages
27h 19m
English
Content preview from Networking Explained, 2nd Edition
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276 Networking Explained, Second Edition
in the authentication header. Collectively, these two fields are referred to as the control
header. The next field, payload data, contains the encrypted version of the user’s original
data. It also contains optional initialization vector (IV) information if the encryption algo-
rithm used to encrypt user data requires any type of synchronization (e.g., DES control
information). The fourth field, padding, provides for any necessary padding requirements
of the encryption algorithm or for byte-boundary alignments. This ensures that the pay-
load data has the correct length. The pad length field specifies the number ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.