Key Agreement Rate

Problem

Return the achievable secret-key rate from mutual informations:

rate = max(0, I(A;B) - I(A;E))

The legitimate pair must share more information with each other than the eavesdropper shares with them.

Hint

The advantage over the eavesdropper sets the key rate.

case 1

in: [2,0.5]

expected: 1.5

case 2

in: [1,1]

expected: 0

case 3

in: [0.5,1]

expected: 0

case 4

in: [3,2]

expected: 1

Starter codePython

def key_agreement_rate(mi_ab, mi_ae):
    # Your code here
    pass

4 test cases · run your code against them in the editor