Distributed authentication using persistent stateless credentials
US9118645B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2012 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | May 31, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0807
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques and tools are described for performing distributed authentication using persistent stateless credentials. Distributed authentication can be performed during egress by obtaining a principal identifier, generating an expiration time, obtaining a secret key identifier that identifies a secret key, generating an initialization vector, encrypting the principal identifier and the expiration time to produce a ciphertext, creating a credential, and providing the credential for persistence at a client device. The credential comprises the ciphertext, the initialization vector, the secret key identifier. Distributed authentication can be performed during ingress by obtaining a credential, extracting a ciphertext, an initialization vector, and a secret key identifier from the credential, obtaining a secret key identified by the secret key identifier, decrypting the ciphertext to produce a principal identifier and an expiration time and authenticating the credential using, at least in part, the principal identifier and the expiration time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.