Quarian session key algorithm in Python - https://threatconnect.com/divide-and-conquer/

quarian_session_key.py

# https://threatconnect.com/divide-and-conquer/
def quarian_session_key(C2_nonce, implant_nonce):
    session_key = ''
    
    for i in range(0,8):
        c = C2_nonce[i] ^ implant_nonce[i]
  
        if c == 0:
            c = ~i
        
        # treats session key as a string - this may not work correctly
        session_key += c
    
    return session_key