checksum
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... overhead, in both bandwidth and CPU consumption. Checksums
protect against the injection of spurious packets, even if the
intruder has direct access to the physical ...
... sequence number, or other unique identifier, a checksum can also
protect again "replay" attacks, wherein an old (but valid ...
... provide some assurance as to the integrity of the information on your
systems. One way to provide this is to produce a checksum of the
unaltered file, store that checksum offline, and periodically (or
...
... systems. One way to provide this is to produce a checksum of the
unaltered file, store that checksum offline, and periodically (or
when desired) check to make sure the checksum of the online file
...
... unaltered file, store that checksum offline, and periodically (or
when desired) check to make sure the checksum of the online file
hasn't changed (which would indicate the data has been modified).
...
... use a cryptographically strong program, such as the message digesting
program MD5 [ref], to produce the checksums you will be using to
assure integrity.
...
... spoofing can
be prevented with cryptographic checksums (it probably isn't
necessary to encrypt the logs because they should not contain
...
... verification tools (md5
checksums, etc.) to validate that software. A clever cracker might
advertise security ...