def estimate_shannon_entropy()

in hancitor/hancitor.py [0:0]

• 10 lines of code
• 3 McCabe index (conditional complexity)

    def estimate_shannon_entropy(data: bytes) -> float:
        m = len(data)
        bases = collections.Counter([tmp_base for tmp_base in data])
        shannon_entropy_value: float = 0.0
        for base in bases:
            n_i = bases[base]
            p_i = n_i / float(m)
            entropy_i = p_i * (math.log(p_i, 2))
            shannon_entropy_value += entropy_i
        return shannon_entropy_value * -1