Archive Guide Glossary

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There are currently 3 names in this directory beginning with the letter H.
Hash Function

An algorithm that computes a hash value or checksum from any set of data, like a file. Common hash functions include MD5 and SHA1. Hash functions are used to check file integrity and for security purposes.

Hash Value

The string of alphanumeric characters that results from running a hash function algorithm on data or a file.  The hash value of a file will always remain the same as long as the file is unchanged, so it can be used to identify altered, corrupted, and duplicated files.


A computer file system developed by Apple that can only be read by Windows devices using special software. Windows devices cannot write to HFS-formatted volumes.

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