ruby
Implement Digest::CRC32
Ref: https://github.com/ruby/digest/issues/77
CRC32 is relatively commonly needed for network protocol (e.g. erro checking in AWS-s3, etc) and some archive formats like zip. As such it would be helpful to have a reasonably efficient implementation built-in.
This is a clean implementation derived from the Wikipedia article, there are more optimized implementations out there, but not sure it's really worth including complicated code. I mostly meant this as a way to familiarize myself with digest before I attempt to write a PR for BLAKE-3.
About JRuby, I tried to figure out how to implement another Java digest, but I couldn't figure it out. It seems like the digest them isn't actually doing any digest and the actual code is in jruby itself? @headius is that correct? If so, how am I supposed to add crc32 support?
