Questions tagged [encodings]

A mapping of a given code to values or semantics. Guessing the meaning of an encoding requires a lot of trials but some encoding are standard and can be guessed quite easily.

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1answer
474 views

How can I determine if a piece of code is an encryption algorithm?

I am trying to reverse engineer a malware, and came across a piece of code that I suspect is an encryption/decryption procedure, however I do not know for sure. I can recognize that it extracts its ...
2
votes
1answer
1k views

How to identify known encryption algorithm?

I reverse an .exe file with IDA. I see a function that appears to be encrypting something by generating some random numbers. It there any tool to identify if it is a known encryption algorithm?
4
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6answers
46k views

Decoding New Jersey Driver's License Codes

Driver's License numbers in New Jersey aren't random. They follow the format: Affff lllii mmyye, where A is the first letter of the person's last name, ffff is some mapping of the remaining letters of ...
12
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2answers
14k views

IDA Convert to Unicode

In IDA 5.0 Freeware how do you convert a block of data into a unicode string, the only thing I can find is to convert it into an ascii string. db 'a' db 0 db 'b' db 0 db 'c' db 0 db 'd' db 0 db 0 db ...
5
votes
0answers
604 views

Reverse engineering an hydrometer's Bluetooth communication

This is a very specific question. I'm currently working on a project to create an android application capable of reading the values of an hydrometer via Bluetooth. By reading the datasheet, I suspect ...
7
votes
1answer
965 views

Reverse engineer TPMS sensor data

I'm trying to reverse engineer data received from TPMS (car tire pressure) sensors. I was able to receive and demodulate the data (433 MHz, FSK, Manchester encoding). Probable packet fields: bytes 1-...
3
votes
2answers
668 views

Translating a Korean Exclusive PS2 game ~ hangeul encoding?

I got my hands on a copy of Mystic Nights, a survival horror game for the PS2 realeased exclusively in Korea. The game's text is all in Hangeul (Korean writting system). I extracted the ISO and ...