tahoe-lafs/trac-2024-07-25
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can deny service by attacking the network 

[Imported from Trac: page NewCaps/WhatCouldGoWrong, version 11]
davidsarah 2009-10-11 01:42:07 +00:00
parent c727eea77b
commit cddf9bb347
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NewCaps/WhatCouldGoWrong.md

@ -11,7 +11,7 @@ This is about What Could Go Wrong with the "Elk Point 2" immutable file caps: <h
|6|unauthorized read|figure out the input to the hash function that generates *S*|anyone|any one file|the hash function's pre-image resistance on *S*|brute force on *R* is !#2| |6|unauthorized read|figure out the input to the hash function that generates *S*|anyone|any one file|the hash function's pre-image resistance on *S*|brute force on *R* is !#2|
|7|unauthorized deletion|brute force KD|anyone|any one file|secrecy of *KD*|2^*d*^| |7|unauthorized deletion|brute force KD|anyone|any one file|secrecy of *KD*|2^*d*^|
|8|unauthorized deletion|figure out the destroy key KD from Dhash|anyone|any one file|the hash function's pre-image resistance on *Dhash*|brute force on *KD* is !#7| |8|unauthorized deletion|figure out the destroy key KD from Dhash|anyone|any one file|the hash function's pre-image resistance on *Dhash*|brute force on *KD* is !#7|
|9|denial of service|prevent access to servers holding sufficient shares (by controlling some of them, or by attacking them)|anyone|any file|not prevented by crypto|n/a| |9|denial of service|prevent access to servers holding sufficient shares (by controlling some of them, or by attacking them or the network)|anyone|any file|not prevented by crypto|n/a|
|10|cause invalid share to verify|generate (*K1enc*,*Dhash*,*V*) that hash to someone else's (*T*,*U*), and copy their *S*|anyone|any one file|the hash function's second-pre-image resistance on (*T*,*U*)|2^*t*+*u*^| |10|cause invalid share to verify|generate (*K1enc*,*Dhash*,*V*) that hash to someone else's (*T*,*U*), and copy their *S*|anyone|any one file|the hash function's second-pre-image resistance on (*T*,*U*)|2^*t*+*u*^|
|11|undeletion [3]footnote|restore a deleted file's shares by controlling the relevant servers|anyone|any one file|not prevented by crypto|n/a| |11|undeletion [3]footnote|restore a deleted file's shares by controlling the relevant servers|anyone|any one file|not prevented by crypto|n/a|
|12|undeletion [3]footnote|generate matching (*R*,*T*,*U*) for a deleted file|anyone|any one file|the hash function's and cap format's second-pre-image resistance on (*R*,*T*,*U*)|2^*n*+*t*+*u*^| |12|undeletion [3]footnote|generate matching (*R*,*T*,*U*) for a deleted file|anyone|any one file|the hash function's and cap format's second-pre-image resistance on (*R*,*T*,*U*)|2^*n*+*t*+*u*^|