Asymmetric key wrapping using a symmetric cipher
US8681996B2 · kind B2 · utility
7Cited by
21References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2007 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | May 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/26
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of asymmetric key wrapping in a system is disclosed. The method generally includes the steps of (A) transferring a shared key from a key storage to a cipher operation, wherein the cipher operation comprises a symmetric-key cipher utilizing a cipher key, (B) generating an encrypted key by encrypting a decrypted key with the cipher operation using the shared key as the cipher key in a wrap-encrypt mode and (C) presenting the encrypted key external to the system in the wrap-encrypt mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.