Dcfldd was initially developed at Department of Defense Computer Forensics Lab (DCFL). This tool is based on the dd program with the following additional features:

- 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. - When dd uses a default block size (bs, ibs, obs) of 512 bytes, dcfldd uses 32768 bytes (32 KiB) which is HUGELY more efficient. - The following options are present in dcfldd but not in dd: ALGORITHMlog:, errlog, hash, hashconv, hashformat, hashlog, hashlog:, hashwindow, limit, of:, pattern, sizeprobe, split, splitformat, statusinterval, textpattern, totalhashformat, verifylog, verifylog:, vf.