Perfect hashing eliminates collisions by uniquely mapping keys to slots in the hash table, providing optimal efficiency for lookups, inserts, and deletes.
Checksum is used to detect accidental errors in data transmission and storage. It acts as a digital fingerprint to verify integrity and prevent corruption.
Hashing functions map data to fixed numeric values. Directly hashing negatives can cause issues. This article discusses techniques for handling negatives.
CRC is for error detection, SHA is for data security verification. This post explains the differences between the two, and their roles in cybersecurity.