This small tool is used for checking and writing CRC32 check sum of a JSON file.
This is not a universal tool, this tool works only with its specific data format. A separate executable file is used for checking and another one – for writing CRC32 check sums. A JavaScript function for the web browser to calculate CRC32 check sums is included.
CRC means a cyclic redundancy check.
A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to digital data.
https://en.wikipedia.org/wiki/Cyclic_redundancy_check
This tool calculates a standard CRC-32 checksum of data using the IEEE polynomial.
Why not MD or SHA ?
CRC is very fast and is still quite good for small amounts of data.
CRC32 is very easy to be implemented in JavaScript on the web browser's side.
Use the build.bat script included with the source code.
go install github.com/vault-thirteen/SPA/cmd/jsonHasher@latest
jsonHasher.exe <action> <json-file>
Example:
jsonHasher.exe hash "my.json"
jsonHasher.exe check "my.json"