Protection Against Replay Attacks Sample Clauses

Protection Against Replay Attacks. In the proposed scheme, an adversary cannot reuse the message M1 : {SIDSMi , ns} since SIDSMi changes in each session. Table III Performance Comparison based on Computation Cost Scheme Smart Meter Service Provider Xx and Xxxx [2] 3Tmp +Tm +Tcertgen +Th 4Tmp +Tm +Tcertver +4Th +Xx Xxx and Xxxx [3] Ts + 4Th Ts + 4th Xxxxx et al. [6] 3Tmp+Te+ 0Xx 0Xxx+Xx+ 0Xx+0Xx Proposed Scheme FE.Rec + 5Th +TPUF FE.Gen + 6Th Tmp: Execution time of a multiplication point operation; Tm : Execution time of a multiplication operation; Te: Execution time of a modular exponential operation; Ts : Execution time of a symmetric encryption/decryption; Tb: Execution time of a bilinear pairing;Th : Execution time of a hash operation; TPUF : Execution time of a PUF operation;Tcert : Execution time of a certificate generation/verification operation gen/ver Operation Smart Meter Service Provider Tmp 5.9 ms 2.6 ms Tm 22.93 ms 14.5 ms Tb 9.23 ms 3.78 ms Tcertgen 57.63 ms - Tcertver - 17.24 ms Th 0.026 ms 0.011 ms Te 7.86 ms 2.34 ms Ts 0.079 ms 0.041 ms TPUF 0. 12 ms - FE.Gen (.) - 1.17 ms FE.Rec (.) 3.28 ms - The adversary cannot reuse message M2 since a new challenge C is used in each session. Similarly, an adversary also cannot resend the messages M3 and M4 Table IV Execution Time of Various Cryptographic Operations new since a new response R' and new helping data hdnew are used in each session. In this way, we ensure security against replay attacks. || || || ||
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Related to Protection Against Replay Attacks

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