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CDPSE · Question #97

Using hash values With stored personal data BEST enables an organization to

The correct answer is B. detect changes to the data.. Hash functions generate a fixed-length fingerprint (digest) of data. If the underlying data changes in any way - even by a single character - the hash value changes. This makes hashing ideal for detecting unauthorized modifications or corruption (data integrity verification). Has

Data Life Cycle

Question

Using hash values With stored personal data BEST enables an organization to

Options

  • Aprotect against unauthorized access.
  • Bdetect changes to the data.
  • Censure data indexing performance.
  • Dtag the data with classification information

How the community answered

(66 responses)
  • A
    2% (1)
  • B
    92% (61)
  • C
    5% (3)
  • D
    2% (1)

Explanation

Hash functions generate a fixed-length fingerprint (digest) of data. If the underlying data changes in any way - even by a single character - the hash value changes. This makes hashing ideal for detecting unauthorized modifications or corruption (data integrity verification). Hashing does not encrypt data or prevent unauthorized access (A), as hashes are not reversible in the same way encryption is. Hashing does not improve indexing performance (C) for personal data, nor does it tag data with classification labels (D). Its primary purpose in this context is integrity checking.

Topics

#Hashing#Data Integrity#Personal Data Protection

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