[Gzz-commits] gzz/Documentation/misc/hemppah-progradu researc...

[Hermanni Hyytiälä]

CVSROOT:        /cvsroot/gzz
Module name:    gzz
Changes by:     Hermanni Hyytiälä <address@hidden>      02/12/18 09:24:48

Modified files:
        Documentation/misc/hemppah-progradu: research_problems 

Log message:
        Updates to a)'s answer (security summary)

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/gzz/Documentation/misc/hemppah-progradu/research_problems.diff?tr1=1.9&tr2=1.10&r1=text&r2=text

Patches:
Index: gzz/Documentation/misc/hemppah-progradu/research_problems
diff -u gzz/Documentation/misc/hemppah-progradu/research_problems:1.9 
gzz/Documentation/misc/hemppah-progradu/research_problems:1.10
--- gzz/Documentation/misc/hemppah-progradu/research_problems:1.9       Wed Dec 
18 08:33:33 2002
+++ gzz/Documentation/misc/hemppah-progradu/research_problems   Wed Dec 18 
09:24:48 2002
@@ -296,6 +296,13 @@
                        -solution: (partial solution) the defence against this 
would be standard authentication techique, such as digital signatures. However, 
                                   there are no working implementation for this 
yet (digital signatures are expensive currently)
                
+-summary: 
+       -problem: attacker denies service, attacker return incorrect data and 
attacker denies data exists:
+       -solution: redundancy (replication, caching)
+       -problem: sybil attack (attacker creates multiple identities and foils 
the redundancy
+       -solution: need a way to control creation of node IDs (ID = 
SHA-1(ip-address), challange node verify its ID)
+               
+               
 2.2. "Searching for most recent Storm block associated with specific urn-5 
name, where
      the block has been signed with a given key"