Error Detection and Correction
Classification Key
: Core Security, Tampering
Problem
Data residing on storage media or in transit across communication links is often susceptible to
errors. This can occur because of bugs in the local system, or because of active attempts
by adversaries to corrupt the data.
How can data be protected from tampering at the intermediaries?
Solution
Add redundancy to data to facilitate detection of and recovery from errors. This can be done by simple parity checking or integrity checking based on some hash values.
Known Uses
RAID array. CRC check in disk storage
Related Patterns
Comparator Checked Fault Tolerant System
Source
Open Group Catalog
Tags
Parity, Hash Value, Integrity
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