Which of the following controls BEST ensures the integrity of data exchanged between two systems?
Which of the following controls BEST ensures the integrity of data exchanged between two systems?
To ensure the integrity of data exchanged between two systems, hash values are the best control. Hash values generate a unique digital fingerprint for the data, which can be checked by both systems to verify that the data has not been altered during transmission. While encryption protects the confidentiality of data, it does not inherently verify that the data remains unchanged, which is the key aspect of integrity. Data classification and control totals do not specifically address data integrity during exchange.
While encryption can protect the confidentiality of data during transmission, it doesn't inherently guarantee its integrity. Hash values specifically address the integrity aspect by providing a means to detect any unauthorized changes to the data.
Encryption the right answer. Only authorized parties with the decryption key can access the original data. This ensures that even if someone intercepts the data during exchange, they cannot understand or alter it.