Security authentication method for agilawood wearable device

The invention discloses a security authentication method for agilawood wearable equipment, and relates to the technical field of information security. Comprising the steps of initializing system information; the gateway, the user and the sensor carry out identity registration on a trust mechanism, and generate corresponding authentication information according to the identity information of the trust mechanism; a user sends authentication information to the sensor through the gateway, completes identity authentication and session key negotiation, and finally carries out secure communication through a session key. In the authentication process, authentication is realized mainly based on four factors and a chameleon identity signature, a user realizes secure login through the four factors, and mutual authentication is realized through an elliptic curve password and the chameleon identity signature. And finally, the user and the sensor generate a session key through the secret value generated by the elliptic cur