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Our implementation of the secret disclosure attack against Fan et al authentication protocol for IoV

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fan_secret_disclosure

Our implementation of the secret disclosure attack against Fan et al authentication protocol for IoV https://link.springer.com/article/10.1007/s12083-017-0553-9

Result:

FAN Protocol Init

Secret Nr = 01111110100101110011001010100011

Secret Nt = 01111000011111011010110001000010

Secret K = 00100001000111101111101101110110

Tij = 01001100001000101100010010010001

Sij = 01111001000011110001000011110110

Secret HW(K) = 18

M* = RoR(Tij, hw(K)) = 10110001001001000101001100001000

RoR(Sij, hw(Tij)) = 11000100100100010100110000100010


Attacking...

x = RoR(Tij, p) = 01001100001000101100010010010001

x = RoR(Tij, p) = 10100110000100010110001001001000

x = RoR(Tij, p) = 01010011000010001011000100100100

x = RoR(Tij, p) = 00101001100001000101100010010010

x = RoR(Tij, p) = 00010100110000100010110001001001

x = RoR(Tij, p) = 10001010011000010001011000100100

x = RoR(Tij, p) = 01000101001100001000101100010010

x = RoR(Tij, p) = 00100010100110000100010110001001

x = RoR(Tij, p) = 10010001010011000010001011000100

x = RoR(Tij, p) = 01001000101001100001000101100010

x = RoR(Tij, p) = 00100100010100110000100010110001

x = RoR(Tij, p) = 10010010001010011000010001011000

x = RoR(Tij, p) = 01001001000101001100001000101100

x = RoR(Tij, p) = 00100100100010100110000100010110

x = RoR(Tij, p) = 00010010010001010011000010001011

x = RoR(Tij, p) = 10001001001000101001100001000101

x = RoR(Tij, p) = 11000100100100010100110000100010

x = RoR(Tij, p) = 01100010010010001010011000010001

x = RoR(Tij, p) = 10110001001001000101001100001000

Found HW of K: 18

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