ECC Mutual Authentication using Child Key based on ECC

摘要

The present invention uses an ECC (Elliptic Curve Cryptography) Key Pair, ECC's Child Key (Hierarchical Deterministic Wallet: BIP32 Wallet), and hash function in a converged network in which a blockchain (Block Chain) and the Internet of Things (IoT) are integrated. As a method for performing mutual authentication between end users of various IoT services, each entity, which is an end user performing mutual authentication, receives and encrypts its own certificate to register it in a key store and between entities. It consists of an authentication process that performs mutual authentication. According to the present invention, in a network in which a blockchain and IoT are fused, a method of performing authentication by generating a child key (disposable key) and a hash function of a public key pair without using their fixed ID There is no risk of leaking personal information because the user's personal information is not disclosed, and it can be safely used for authentication from a recent surge in ID attacks, so it can be used in various services that require confirmation of the opponent's ability or credit, and sign a contract. .