System and method for access field verification
US5640454A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1996 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Sep 12, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0894
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A cryptographic communications system and method is provided for access field verification. A key exchange field which includes an encryption of at least part of a first encryption key using a public portion of a second encryption key, an access field which includes an encryption of at least part of the first encryption key using a public portion of a third encryption key, and a verification field which is created from at least one value used to create at least one of the key exchange field and the access field are provided to a receiver. Using the verification field, the receiver verifies that at least part of the first encryption key contained within the key exchange field and at least part of the first encryption key contained within the access field are equivalent. If the receiver's verification is successful, the access field is determined to be authentic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.