Tasks in this category have to do with data encryption (or decryption) using various algorithms.
Note that encryption is not the same as achecksum.
With encryption, the derived data carries an encrypted form of the original data, and can be manipulated to recreate the original input.
A checksum is simply a sequence of characters (usually just a few characters in length) that cannot be converted back to the original form (because more than one input can have the same checksum).
The following 14 pages are in this category, out of 14 total.