Hello folks, I have a service to which people can send data. My service then stores the data and returns the SHA checksum for the data back to the client. I also store the checksum I computed and the offset at which it was computed as part of the metadata.
I want to allow clients to send append requests to this data at a later time. When they send the append request, I want to be able to use the checksum that I had already calculated as the starting point and then use that to generate the new checksum for the appended object. I know about the init, update and final functions. But I dont see a way to pass in the checksum value of the original object when computing the checksum of the new appended object. Can someone tell me how I can achive the above? Thanks, Jason
