Patent ID: 9203616
Filing Date: 2015-12-01
Classification: H04L

Abstract:
1. A method of synchronizing a set of authentication servers, the method comprising: receiving, by a first authentication server of the set of authentication servers, a request from a second authentication server of the set of authentication servers to perform a first proactivization operation, each authentication server of the set of authentication servers being configured to verify a secret share of a secret received from a client against a version of a secret share stored in a respective database of that authentication server, the first proactivization operation serving to generate, by the first authentication server, a new version of a first secret share, a version of the first secret share serving to reveal the secret when combined with that version of a second secret share stored in a respective database of a second authentication server of the set of authentication servers; sending, from the first authentication server, a notification to the second authentication server to begin performing a second proactivization operation, the second proactivization operation serving to generate, by the second authentication server, a new version of the second secret share; performing, by the first authentication server, the first proactivization operation; and while performing the first proactivization operation, storing, by the first authentication server, a previous version of the first secret share on the respective database while generating the new version of the first secret share; wherein receiving the request from the second authentication server includes: