| commit | b05b762ed45c6c8967fce098c598ec1a6ed7a533 | |
| author | Amaury Pouly <amaury.pouly@gmail.com> | |
| Sat, 16 Feb 2013 19:47:07 +0000 (16 20:47 +0100) | ||
| committer | Amaury Pouly <amaury.pouly@gmail.com> | |
| Sat, 16 Feb 2013 19:49:07 +0000 (16 20:49 +0100) | ||
| tree | ca704d48a3ac5acd8097d8485208f2f328766650 | treesnapshot (tar.gz zip) |
| parent | 4db4985f21bd8f36533f8e71db916e6d3d5d2249 | commitdiff |
sbtools: add brute force option for sb1 in sbtoelf
After some reverse engineering, it appears that the keys of the
sb1 format are very weak: the 128 bytes are generated from the
laserfuse words 4,5 and 6 but in a weird manner: 4 and 5 are
simply ORed and 6 is only half used (somehow), making it "only" a
48 bit word to find.
Change-Id: I40702e19d0924ef51c01894efce3cb65bd664456
After some reverse engineering, it appears that the keys of the
sb1 format are very weak: the 128 bytes are generated from the
laserfuse words 4,5 and 6 but in a weird manner: 4 and 5 are
simply ORed and 6 is only half used (somehow), making it "only" a
48 bit word to find.
Change-Id: I40702e19d0924ef51c01894efce3cb65bd664456