This email concerns Fedora-Futures development, and not work in the FCRepo
3.x line.
One of the things that Modeshape does (as do a number of other storage
services) is key stored bytes of a hash of the content. By default,
Modeshape uses the SHA1 hash.
Because of this, we are considering doing away with the storage of
arbitrary checksums for bytestreams, and only using alternative algorithms
to verify the transfer. So, for example, if you transmit bytes with a MD5
checksum, Fedora would use that MD5 to verify the content, but then
calculate and store only its own checksum (for the sake of argument, SHA1).
Queries on the datastream "profile" information would return the
stored/internal checksum (SHA1).
How does everyone feel about this?
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