afflib is library and set of tools used to support of Advanced Forensic
Format (AFF).

The Advanced Forensic Format (AFF) is on-disk format for storing
computer forensic information. Critical features of AFF include:
  - AFF allows you to store both computer forensic data and associated
    metadata in one or more files.

  - AFF allows files to be digital signed, to provide for
    chain-of-custody and long-term file integrity.

  - AFF allows for forensic disk images to stored encrypted and
    decrypted on-the-fly for processing. This allows disk images
    containing privacy sensitive material to be stored on the Internet.

  - AFF is an open format unencumbered by copyright or patent
    protection. The AFFLIB library that implements AFF is available
    for use in both Open Source and proprietary tools.