Cryptographic transmission system
US9286241B2 · kind B2 · utility
1Cited by
2References
20Claims
0Family size
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Inventor
Key dates
| Filing date | Feb 20, 2013 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Jun 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2113
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A microcontroller includes on-chip key storage slots stored in a non-volatile memory, wherein selecting which key is to be used is restricted to software, wherein a predetermined key storage slot stores a Key Encrypt Key (KEK), and a register flag is provided for determining whether the predetermined key storage slot stores a key for encrypting/decrypting data or the KEK for encrypting/decrypting a key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.