enhanced version of dd for forensics and security

 Based on the dd program with the following additional features:
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  - Hashing on-the-fly, dcfldd can hash the input data as it is being
    transferred, helping to ensure data integrity.
  - Status output, dcfldd can update the user of its progress in terms of the
    amount of data transferred and how much longer operation will take.
  - Flexible disk wipes, dcfldd can be used to wipe disks quickly and with a
    known pattern if desired.
  - Image/wipe Verify, dcfldd can verify that a target drive is a bit-for-bit
    match of the specified input file or pattern.
  - Multiple outputs, dcfldd can output to multiple files or disks at the same
    time.
  - Split output, dcfldd can split output to multiple files with more
    configurability than the split command.
  - Piped output and logs, dcfldd can send all its log data and output to
    commands as well as files natively.