Variable length xor in python

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
35/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
python
Domain
security

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.

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

Dominant language
C
Stars
97
Forks
26
PR merge metrics
No merged PRs in 30d

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