Feature? CRC can detech one to several bit errors depending on its size

[MadBomber]

Given data block with embedded CRC32/64 items its possible to not only detect bit-level errors but also to correct those bad bits. Being able to compare two different crc32/64 values and obtain the bit indexes that are wrong within the message block would be an interesting feature for use with wireless comms.

[postmodern]

I am not sure if this is possible with the current algorithm which processes blocks of data byte-by-byte? Feel free to submit a PR though.

[postmodern]

Second thought, is correcting the data really in-scope for digest-crc, which is primarily focused on calculating CRC checksums of data? What would a correction API even look like?