CRC-64

Simple cross-platform command-line tool for computing CRC-64 (ECMA-182) checksums.

The crc64 utility writes to the standard output three whitespace separated fields for each input file. These fields are the CRC (Cyclic Redundancy Check) checksum of the file, the total number of octets in the file and the file name. If no file name is specified, the standard input is used.

The generator polynomial use for CRC-64 computations is: 0x42F0E1EBA9EA3693

Synopsis

crc64.exe [OPTIONS] [<file_1> [<file_2> ... <file_n>]]

Options

Option	Description
-h, --help, --version	Show help screen / show version information
-b, --binary	Output digest in binary format (default is hex-string)
-d, --decimal	Output digest in decimal string format
-u, --upper-case	Print digest as upper-case (default is lower-case)
-p, --no-padding	Print digest without any leading zeros
-s, --silent	Suppress error messages
-e, --ignore-errors	Ignore I/O errors and proceed with the next file
-f, --no-flush	Do not flush output stream after each file
-z, --init-with-zero	Initialize CRC with 0x000…000 (default is 0xFFF…FFF)
-n, --negate-final	Negate the final CRC result
-l, --append-length	Append to the input its length for CRC computation
-t, --self-test	Run integrated self-test and exit program

License

This work has been released under the CC0 1.0 Universal license.

For details, please refer to:
https://creativecommons.org/publicdomain/zero/1.0/legalcode