Sensor authentication and shared key production method and system and sensor

Sensor authentication and shared key production method and system and sensor

  • CN 103,532,713 B
  • Filed: 07/04/2012
  • Issued: 03/23/2018
  • Est. Priority Date: 07/04/2012
  • Status: Active Grant
First Claim
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1. sensor authentication and shared key production method, including:

  • Sensor sends ID and digital certificate to application system, and unique identity ID, private are pre-configured with the sensorKey and digital certificate corresponding with private key, wherein, digital certificate is issued by CA mechanisms, and private key is by sensor secure store;

    Application system verifies ID and digital certificate, random to generate random number and session key if being verified, and described in useRandom number described in public key encryption in digital certificate and the session key form encryption message, sensor are sent to, using systemSystem checking ID and digital certificate include:

    Verify ID validity, checking ID and the uniformity of digital certificate title, and checking numberThe validity of word certificate;

    Sensor decrypts received encryption message using private key corresponding to the digital certificate, the random number that is obtained to decryption andSession key carries out one-way hash function calculating, forms hashed value, and the hashed value is sent into application system;

    AndApplication system verifies received hashed value, if being verified, certification success message is sent to sensor.

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