Digital signature protocol
US6212281A · kind A · utility
39Cited by
15References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1997 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Oct 10, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3247
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A digital signature protocol generates a signature component using a hash of an encrypted message. The component and encrypted message form a signature pair that is forwarded to a recipient. The encryption message is used to retrieve the encryption key at the recipient and authenticate information in the message. The signature pair may be applied to a data carrier as a bar code for use in mail delivery services. By utilizing a hash of the message, a reduced message length is achieved as individual signatures are not required for each component of the message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.