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revision 1.9 by hemppah, Wed Dec 18 13:33:33 2002 UTC revision 1.10 by hemppah, Wed Dec 18 14:24:48 2002 UTC
# Line 296  most of data retrievals could fail Line 296  most of data retrievals could fail
296                          -solution: (partial solution) the defence against this would be standard authentication techique, such as digital signatures. However,                          -solution: (partial solution) the defence against this would be standard authentication techique, such as digital signatures. However,
297                                     there are no working implementation for this yet (digital signatures are expensive currently)                                     there are no working implementation for this yet (digital signatures are expensive currently)
298                                    
299    -summary:
300            -problem: attacker denies service, attacker return incorrect data and attacker denies data exists:
301            -solution: redundancy (replication, caching)
302            -problem: sybil attack (attacker creates multiple identities and foils the redundancy
303            -solution: need a way to control creation of node IDs (ID = SHA-1(ip-address), challange node verify its ID)
304                    
305                    
306  2.2. "Searching for most recent Storm block associated with specific urn-5 name, where  2.2. "Searching for most recent Storm block associated with specific urn-5 name, where
307       the block has been signed with a given key"       the block has been signed with a given key"
308    

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