Proposed Scheme. The proposed scheme involves mainly two entities (the smart meter (SM) and the NAN gateway). Before describing current time stamp of SM. In order to provide the message integrity, the SM computes Y 1 = MACL1[SMIDj , T 1, ASMj ]. It generates a pseudo number (φ) and computes α = H(NID φ) idSTj T 1, and finally, sends a message, start α, Q1, ASMj , Y 1, φ, T 1 to the NAN. NID Neighborhood Area Network (NAN) identity ▇▇▇▇ Smart meter identity ST , idST Secret token and its identity EK [ms] Encrypt ms using key (K) DK [ms] Decrypt ms using key (K) p, n Large prime numbers Fq A finite field E Elliptic curve defined on finite field Fq with prime order n G Group of elliptic curve points on E P A point on elliptic curve E with order n H(.) One-way hash function (e.g., SHA-1, SHA-2, MD5, etc.) MAC, || Message authentication code, and concatenation operation φ, φN SM’s and ▇▇▇’s pseudo random numbers, respectively
Appears in 3 contracts
Sources: Lightweight Authentication and Key Agreement, Repository License Agreement, Lightweight Authentication and Key Agreement