Method for file encryption
US9521123B2 · kind B2 · utility
22Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2015 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Apr 28, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/63
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for encryption and sealing of a plaintext file by hashing the plaintext file to produce a plaintext hash, encrypting the plaintext file to produce ciphertext, hashing the ciphertext to produce a ciphertext hash, hashing the plaintext hash and the ciphertext hash to produce a result hash, and sealing the ciphertext together with the result hash. This provides verification for non-repudiation and protects against undetected malware corrupting the plaintext or ciphertext files.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.