title: checking crc32 of a file
body: <p>This is not really a "how to" question.</p>
  
  <p>Is there a "standard" file structure that applications use to store the checksums of files in a folder? I'm developing a tool to check various things like crc32, md5, sha1, sha256, etc... I'd like to have my program store the various hashes in files in the folder of what I'm checking.</p>
  
  <p>I know that there is a file commonly used called 'md5sums' or 'sha1sums'. But what about CRC? I haven't noticed any around. And if there is, what's the structure of it?</p>
  
  <p>Thanks.</p>