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Often such integrity is ensured by use of a number referred to as a Message Integrity Code (MIC0 or Message Authentication Code (MAC).

In Cryptography and Information Security in general, integrity refers to the validity of data. Integrity can be compromised through:
  • Malicious altering, such as an attacker altering a account number in a bank transaction, or Forgery of an identity document

  • Accidental altering, such as a Transmission error, or a hard Disk Crash


Data integrity in a Relational Database is concerned with accuracy, correctness, and validity of the data in a database. A common variety of data integrity is Referential Integrity , which involves prevention of errors in Foreign Key to Primary Key relationships, such as an orphan child record that is missing its parent record (sometimes termed a dangling foreign key).


SEE ALSO