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A numerical value calculated from a series of bits of digital data, often by summing their values, used to test whether the data has changed during storage or transmission.

check′sum′ v.


a digit representing the number of bits of information transmitted, attached to the end of a message in order to verify the integrity of data
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.checksum - a digit representing the sum of the digits in an instance of digital data; used to check whether errors have occurred in transmission or storage
confirmation, substantiation, verification, check - additional proof that something that was believed (some fact or hypothesis or theory) is correct; "fossils provided further confirmation of the evolutionary theory"
References in periodicals archive ?
They are run by amateur hackers who graduated from taking down websites to recruiting new members for terrorist groups like Islamic State (IS), Bahrain-based Checksum Consultancy principal consultant Muhammed Haroon had said.
This month's release provides the capability to add checksum validation on Codabar coded barcode.
These include monitoring of an internal reference signal, checksum techniques for verifying communication and signal saturation / over range monitoring.
When a folder or file is moved to a RAID array, the checksum is validated to ensure the file is unchanged during transfer.
For this there are commonly Checksum, XOR, CRC, and Hush.
We have standardized on National Instruments' platform for functional test and CheckSum for ICT, since both offer a wide range of test support options compatible with typical customer requirements.
Checksum Offloading Features TCP, UDP and IP checksum offloading functionality, transferring the checksum processing tasks from the computer's CPU to the network card to reduce CPU processing burden - Low Power Consumption Maximum power consumption of 4.
When sending an ASCII message, the two CRC16 checksum bytes were added at the end of it.
When a checksum is digitally signed, the probability that the original file has been changed by an unauthorized user or process can be further minimized.
0 release also includes Syslog server integration, advanced scheduling options, enhanced server certificate handling, and FTP checksum validation options.
Checksum 1--Encrypt the number but exclude the final digit, and replace the checksum digit with a valid checksum of the encrypted digits.
Checksum Blocklist: Integrates with Fortinets FortiGuard Antispam Service, which inspects all content within an email, including attachments and graphics, and applies a checksum against the content to determine whether it is spam.