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6 commits

Author SHA1 Message Date
Amaury Pouly
1f338f7078 nwztools/upgtools: add support for windows
In order to avoid the crypto++ mess, the code uses the Windows Cryptography API,
which is standard. There is also some makefile magic to cross-compile:
  make PREFIX=i686-w64-mingw32- EXE_EXT=.exe
I selected the option so that it should statically link supports libraries used
by gcc (slsj and libwinpthread).

Change-Id: Iaf07da23afe81ed217fb3921ce13367c5441514d
2020-10-11 13:08:03 +02:00
Amaury Pouly
53d2742a48 nwztools: add support for new UPG format on post-WM1/A30 devices
The new code supports reading and writing UPG files. I kept the old keysig
search code but it only supports the old format (the new format has too long
keys anyway). Since we now have to support two types of encryption(DES and AES),
I reorganized the crypto routines and clean-up some code.

Change-Id: Ie9be220ec2431ec6d0bd11699fa0493b62e1cec2
2020-10-11 13:08:03 +02:00
Amaury Pouly
5cfd4a5b8e nwztools/upgtools: add more brute force algorithms
Allow to search for hex with upper case and alphanumeric. This is *much* slower
of course.

Change-Id: I41a2fc63c4b2220c21147b711098ebc37ddb3527
2017-01-04 17:04:19 +01:00
Amaury Pouly
37f95f67fe nwztools/upgtools: rewrite keysig brute force search
The new search has two new features:
- it takes advantage of the fact that DES keys are only 56-bit long (and not 64)
- it is now multithreaded
As a proof of concept, I ran it on the A10 series firmware upgrade and was able
to find the key in a few seconds using 4 threads. The search is still limited
to ascii hex passwords (seems to work on all devices I have tried thus far).

Change-Id: Ied080286d2bbdc493a6ceaecaaadba802b429666
2016-10-27 23:06:16 +02:00
Amaury Pouly
cf82f208e3 nwztools: cleanup the code
There was a lot of copy and paste, and the code was just crap. This commit tries
to clarify the code and also document the encryption procedure. Hopefully I didn't
break anything.

Change-Id: I257793010e7cf94f2b090b30bb8608359d3886e3
2016-08-30 17:21:05 +10:00
Amaury Pouly
cb09e369fb Introduce upgtools for sony nwz players
This tool can unpack UPG archives for firmware updates.

Change-Id: I32f5f1a84759198c7af4a4ecfd7aa65eaeda567a
2012-11-03 02:16:01 +01:00