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Old 12-02-03, 01:20 PM   #20
TankGirl
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Join Date: May 2000
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Quote:
Originally posted by pod
Isn't there an OpenNap client yet that can multisource over the protocol via the resume mechanism? OpenNap servers can have registered nicks, and the scheme wouldn't inconvinience people who wish to use other servers at the same time.
Even if OpenNap can be tricked to do multisourcing like you say, the major problem with OpenNap is the poor hashing mechanism. It hashes only the first 300 kb of each file - which may be helpful in finding candidates for single source resuming but is not nearly enough for reliable multisourcing. Especially larger files - and we are talking gigabyte movies here - require full-file hashing, preferably in the form of hash trees or other similar constructs so that smaller sections of the file can be verified as soon as they arrive without having to wait for the completition of the entire file.

- tg
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