Network Security

Jacksum – data integrity software for working with checksums, CRCs, and message digests

Jacksum is data integrity software for working with checksums, CRCs, and message digests (hashes).

Jacksum supports 477 algorithms, including the most common cryptographic and non-cryptographic hash functions. Jacksum also supports the “Rocksoft ™ Model CRC Algorithm” to describe CRCs, so additional 1.0399*10^267 customized CRCs can be used.

Jacksum can recursively compute hashes with multiple algorithms simultaneously. Jacksum takes advantage of modern multi-processor/multi-core environments, and saves time by hashing multiple files in parallel.

Jacksum can perform a verification of hashes against a set of known hashes, and it can detect matching, non-matching, missing, and new files.

This is free and open source software.

Features include:

  • 489 standard hash functions.
  • Customizable CRCs from 1 to 64 bit width.
  • 60+ options to control Jacksum’s behavior on the command line.
  • 14 standard encodings for representing hash values.
  • 10 predefined styles for reading and writing files that contain hash values.
  • 8600+ lines of manpage with descriptions, examples, and compatibility lists for the most common algorithms.

Support: GitHub Code Repository
Developer: Johann N. Löfflmann
License: GNU General Public License v3.0

Jacksum help

Jacksum is written in Java. Learn Java with our recommended free books and free tutorials.

Return to Data Hashing CLI Tools | Alternatives to cksum

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