dcfldd

Enhanced version of dd for forensics and security.

TLDR

Copy a disk to a raw image file and hash the image using SHA256

>_ dcfldd if=/dev/[disk_device] of=[file.img] hash=sha256 hashlog=[file.hash]
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Copy a disk to a raw image file, hashing each 1GB chunk

>_ dcfldd if=/dev/[disk_device] of=[file.img] hash=[sha512|sha384|sha256|sha1|md5] hashlog=[file.hash] hashwindow=[1G]
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