100 Days of System Design Topics challenges

Day 28: Checksum

A checksum is a value calculated from a block of data that is used to detect errors in data transmission or storage. It is typically generated by applying a checksum algorithm to the data and appending the result to the data itself. When the data is later read or transmitted, the checksum can be recalculated and compared to the original checksum to determine if the data has been corrupted or modified.

By calculating and verifying checksums, systems can detect and mitigate the impact of data corruption, errors, or tampering, enhancing reliability and trustworthiness.

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