Patent
Method and authentication system for automatic re-authentication
Yung-Chao Tseng
- 12 Jul 2018
TL;DR: In this paper, a method for automatic re-authentication is presented, which includes: transmitting, by a client device, a challenge to a key device; signing, by the key device, the challenge with a digital signature generated by using a private key and transmitting the digital signature of the challenge to the service server when the key devices is connected to the client device.
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Abstract: A method for automatic re-authentication is provided. The method includes: transmitting, by a client device, a challenge to a key device; signing, by the key device, the challenge with a digital signature generated by using a private key and transmitting the digital signature of the challenge to the service server when the key device is connected to the client device; receiving, by the service server, the digital signature of the challenge and authenticating the digital signature with a public key stored in the service server; establishing, by the service server, a service connection between the client device and a service provided by the service server to allow the client device to access the service when the digital signature is verified; and performing, by the service server, a re-authentication operation with the client device and the key device according to a connection between the client device and the key device.
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