What is utilized to verify data integrity during transmission?

To verify data integrity during transmission, checksums are commonly utilized. A checksum is a computed value that serves as a small, representative digest of data. It is generated by running an algorithm on the data being transmitted. When the data is received, the checksum can be recalculated and compared to the original checksum value sent along with the data. If both checksums match, it indicates that the data was not altered during transmission. Discrepancies in the checksums signal that the data may have been corrupted or tampered with, thereby providing a mechanism to assess the integrity of the data.

Encryption keys are primarily used for securing data to prevent unauthorized access, but they do not measure data integrity directly. Message batching refers to grouping messages for transmission, which does not inherently provide a method for integrity verification. Access logs track access to systems or data and do not play a role in verifying the integrity of transmitted data. Therefore, checksums are the appropriate method for confirming that data remains unchanged during the transfer process.