Key distribution method and system
US8532301B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2009 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Jan 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This invention discloses a key distribution method and system. The method includes: notifying, by an application provider management platform, a supplementary security domain of an application provider that is set on a smart card and corresponds to the application provider management platform to generate a public/private key pair including a public cryptographic key and a private cryptographic key; receiving, by the application provider management platform, the public cryptographic key from the supplementary security domain of the application provider that has been encrypted by the public key of the application provider obtained in advance and has been signed by a Controlling Authority Security Domain (CASD) on the smart card through a card issuer management platform; authenticating, by the application provider management platform, a signature and using the private key of the application provider to perform decryption to obtain the public cryptographic key; and sending, by the application provider management platform, a trust point's public key used for external authentication and a certificate of the supplementary security domain of the application provider to the supplementary se…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.