I need some help and advice here. I'm self-learning how to reverse engineer a file content of an unknown format.
Here's the content of two files:
E5 44 2A F9 1C 72 96 B9 CA B2 40 33 DA 19 B9 56 C4 5F E2 46 C4 A2 37 1C 6B A7 FF 6A 14 96 E6 53 5E 63 0D A3 01 65 65 BC C6 55 1B 90 C9 56 16 6A C9 B8 3D 05 0F E5 13 62 F0 22 6D C6
DD 9F 44 2E C7 3D D2 31 48 3D 40 18 A8 D6 79 59 AE 31 6A E7 6C E2 92 6A A9 83 5A DC 64 56 34 1A 85 E7 2E 77 A9 34 32 29 61 4C A4 54 E1 76 6B C7 94 C0 FF 66 7F BC 1B A0 43 5C 83 87 19 1F AD AC 24 56 EE E4 87 9F BB 02 BD C1 35 ED F5
These two files are supposed to have the same information because I saved them with the same "visible" data from the user perspective (with just some seconds of difference between each saves).
The readable data should have something like this string "1111111111111100".
Aditional one:
02 D6 AB D8 4B 18 19 C2 88 AF A7 4E 7D DD C1 27 E4 FC A4 32 83 44 32 32 E9 2C 26 00 F9 56 8F F7 57 DC C0 E4 BB B2 65 55 CF E3 14 21 9F 07 51 A6 C0 1D 1D 74 3C 92 76 5C BB BE BE A1 3D E0 C5 4D BD 21 DC 11 83 C8 2A FC 9F 46 56 A3 34 98 2B BE 53 05 55 EE
I have the software that reads both files. I tried to change some values and I was able to get some descriptive errors, like "wrong version", "wrong format", "CRC error".
Is it compressed? Encrypted? Both?
Any advice?