cryptoProeasy

SLA

spbctf

Task: XOR stream cipher with ciphertext provided. Solution: Recover key using known plaintext attack with flag prefix matching key length.

known_plaintext xor stream_cipher

known_plaintext_attackxor_key_recovery

$ ls tags/ techniques/

known_plaintext xor stream_cipher

known_plaintext_attackxor_key_recovery

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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