I am trying to get a CRC or md5 of the bytes from a resource or node with properties within cq5 within a resource or a node.
For example, say I have a DAM asset, I would like to get an MD5 fingerprint of the byte blob containing the image data, so that I know when the data inside has changed.
The same would be handy for a node. Is there any inbuilt way in CQ5 to get this?