Salut Remy! 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 -- Fon: +49-(0)70 0770 07770 http://matthias.wimmer.name/ HAM: DB1MW xmpp:[EMAIL PROTECTED]
signature.asc
Description: Digital signature
_______________________________________________ jdev mailing list [EMAIL PROTECTED] https://jabberstudio.org/mailman/listinfo/jdev
