dd program useful for computer forensics
dc3dd is a patched version of GNU dd to include a number of features useful for computer forensics. Many of these features were inspired by dcfldd, but were rewritten for dc3dd. - Pattern writes. The program can write a single hexadecimal value or a text string to the output device for wiping purposes. - Piecewise and overall hashing with multiple algorithms. Supports MD5, SHA-1, SHA-256, and SHA-512. - Progress meter with automatic input/output file size probing. - Combined log for hashes and errors. - Error grouping. Produces one error message for identical sequential errors. - Verify mode. Able to hash output files and compare hashes to the acquisition hash. - Ability to split the output into chunks with numerical or alphabetic extensions. - Ability to write multiple output files simultaneuously.
pkg install dc3dd