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+--- Thread: Help to find a solution. (/thread-920.html)
Help to find a solution. - konradc - 02-12-2012
Hello,
I'm not experienced with encryption subjet. But I need your help. I need to decrypt update.zip file for android-based device. Its encrypted, I have 54bytes header which is the same for every update file, and got it in plain-unencrypted form. In hex:
encrypted:
PHP Code:
64 87 06 10 99 D6 CD 9F 7D E4 74 9A 93 B4 D4 AD ED 97 02 3E 0D 0A 7D 96 EA FE
98 3E EE 9A 4C FE 1F FB D9 78 BA 86 5E 47 17 99 3B F8 71 85 3B 2F EF 2E E0 20
77 E9
unencrypted:
PHP Code:
50 4B 03 04 14 00 08 00 08 00 37 94 5C 38 00 00 00 00 00 00 00 00 00 00 00 00
14 00 04 00 4D 45 54 41 2D 49 4E 46 2F 4D 41 4E 49 46 45 53 54 2E 4D 46 FE CA
00 00
I tried XOR decrypt (other devices had files encrypted that way), but without luck.
For any advice I would be grateful. I've got pc with 2x ATI GPUs HD5870 as far as I remember. I could have access to better machine if it will be needed.
br
KonradC