tahoe-lafs/trac-2024-07-25
2
0
Issues 1.1k Wiki Activity

What Could Go Wrong 

[Imported from Trac: page NewCaps/WhatCouldGoWrong, version 1]
zooko 2009-10-10 20:52:21 +00:00
parent d09fabc75c
commit 109979bc45
1 changed files with 10 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
NewCaps/WhatCouldGoWrong.md Normal file

@ -0,0 +1,10 @@
This is about What Could Go Wrong with the "Elk Point 2" immutable file caps: <http://jacaranda.org/tahoe/immutable-elkpoint-2.svg>
| | | | | |
|---|---|---|---|---|
|*what bad thing could happen*|*who could do it*|*what could they target*|*what crypto property prevents it*|*how expensive to brute force*|
|shape-shifter immutable file [1]footnote|creator of a file|their own file|the hash function's and cap format's collision resistance on the read-cap (*R*,*T*)|2^(*r*+*t*)/2^|
|unauthorized read|anyone|any file|the cipher's security and the secrecy of the read-key *R*|2^*r*^|
|forgery of immutable file|anyone|any file|the hash function's and cap format's second-pre-image resistance on (*R*,*T*)|2^*r*+*t*^|
1. *shape-shifter immutable file*: creator creates more than one file matching the immutable file readcap