User authentication for portable electronic devices using asymmetrical cryptography
US6460138B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1998 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Oct 5, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3247
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system and method for authenticating a user of a portable electronic device having a removable memory using asymmetric cryptography, the asymmetric cryptography requiring the use of a user'private key and public key. The method and system include storing the user'private key and public key on the portable electronic device. Thereafter, information including the user'personal identification number (PIN) is encrypted using the user'private key and public key, respectively, to create encrypted authentication information. The encrypted authentication information is then stored on a standard removable memory, such as a flash card. When the removable memory is subsequently inserted into the portable electronic device, the portable electronic device automatically decrypts the authentication information and prompts the user for a PIN code. If the decrypted authentication information and the entered PIN are verified, the user is authenticated without the use of a smart card or card reader and the device is unlocked allowing the user to gain access.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.