This archive format is used as an installation packet in the Unix operating system for updating, querying, checking, deleting and installing software products. The RPM archive is a database that is comprised of a single base of program packets and a large number of small databases. The system can store information about packet modifications, deletions and installations.
This is one of the most common file compression formats. It was created by Russian programmer Evgeny Roshal. The format allows one to break up an archived file into several parts, to block an archive to prevent accidental modification, and to enhance data recovery (helps to renew a damaged archive). It has a 128-bit AES algorithm.