Salut Remy!Hi Matthias,
Remy HAREL schrieb am 2004-04-30 17:13:04:
of XML stanzas between any two entities". So, as we have many c2s, we have to add data in order to keep this order, and I would like to hash an jid (1024bits) to a MD5 word (128bits). It's better ( I think) and MD5 is already implemented in jabberd 2 project, that's why I choose MD5. Is it a bad choice accordind to you ?
A JID has up to 1024 B not 1024 b ;)
If you want to use the hash to reduce the size, you might prefere MD5, that's true. SHA-1 would have 160 b.
But infact this is an advantage. 128 b isn't considered enough anymore to prevent forced clashes (by users). So if you use it in a way that JIDs that map to the same hash don't break your implemenation it's fine. If clashing hashes break your implementation MD5 could be a problem for you as somebody that want to harm your server can create a second account that has the same hash value.
BTW: The SHA-1 hash algorithm is implemented in jabberd2 (and jabberd14) as well: jabberd2/util/sha1.*
A+ Matthias
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Thanks, I'm working on this problem.
Have a nice week,
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Remy Harel - [EMAIL PROTECTED] G.I.C.M - Distributed Systems & IT Linux Registered User #224740
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