A blockchain-based Aadhar system: distributed authentication system

An Aadhaar is a unique number issued to every citizen in India. Aadhar’s current identity authentication relies on the central identities data repository (CDIR) of identification authority India (UIDAI), which at risk single-point fault attack. Perhaps worse, internal attacks can tamper with sensitive authenticated devices without being detected. In this paper, proposed system utilizes emerging technology: blockchain for solving issue centralized authentication. The provides distributed, secure, and tamper-proof ledger platform Aadhar that implemented using ethereum technology. considers (ID) each registered it smart contract so ID may be by other peer-to-peer network authority. For securing data, framework uses hashing technique significant (i.e. firmware). Blockchain stores hashed instantly any change state possible detect.