All Questions
Tagged with hash-functions crc
6 questions
0
votes
0
answers
24
views
Figure out iButton hash of known stored value in 6 bytes
I have an old iButton which stores a floating number on 6 bytes, presumably using a checksum, for which I can't figure out the algorithm.
Here are samples I have:
value X1 X2 X3 X4 X5 X6 V1 V2 ...
1
vote
0
answers
85
views
can sha1 hash of file converted to sha2 hash?
I have a phone database /data/user/0/com.miui.gallery/databases/gallery.db containing information such as exif data and file name. there is a column sha1 containing value
...
- 113
3
votes
1
answer
196
views
Identification of RF hash algorithm
I have an unbranded LED lamp with a remote control. I would like to reverse the protocol of the remote but unfortunately I can't create my own packages. The frequency of the remote transceiver is 2....
- 98
0
votes
1
answer
3k
views
CRC32 reverse engineer without knowing parameters, but knowing the input value
Dear members,
I am trying to figure out the parameters of some hexadecimal CRC32 values I have.
The values are:
Value - input (before hashing)
55D3028A - J
73AF2D02 - O
6742BE71 - T
I hope I can ...
- 1
5
votes
3
answers
1k
views
Hash algorithm written in C decompiled with IDA
I have been working on rewriting a program, although it uses a hash to fingerprint the file, I have used IDA to find the function doing the hash and what it is doing to the file before it sends it to ...
- 153
4
votes
0
answers
2k
views
Reverse Engineering a 8 bit CRC checksum
I am trying to create a communication interface using C Language to an Air conditioning system, after analyzing the data packets I have identified that the data packet is consist of an 8 bit CRC (I am ...
- 41