mhaskar / mhaskar/Shellcode-In-Memory-Decoder
Variable length xor in python
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- Dominant language
- C
- Stars
- 97
- Forks
- 26
- PR merge metrics
- No merged PRs in 30d
Description
https://github.com/mhaskar/Shellcode-In-Memory-Decoder/blob/08e0b1f12b6b254fa3ed4ee14aa244a3487b2afd/xor-encoder.py#L15
key = '\x01'
print( ''.join([chr(ord(v)^ord(key[i%len(key)])) for i,v in enumerate(raw_data)]) )
This would be a variable length XOR key
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start at xor-encoder.py line 15 and compare the current single-byte key handling with the variable-length XOR expression shown in the issue. Verify how raw_data and the key are represented, then confirm that encoding cycles through every key byte as the completed behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- security
- Issue type
- Feature
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100