Method of encryption, method for decrypting, devices and programs
US10666421B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 6, 2016 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Sep 26, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/34
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for encrypting a code of a computer program using an encryption key selected from among at least two encryption keys. Such a method includes: obtaining a descriptive grammar of the language of the code to be encrypted; encoding the code by using the descriptive grammar delivering a character string within which at least one start instruction of the code is encoded as a representation in the character string; encryption of the character string by using the encryption key belonging to the set of encryption keys, delivering an encrypted string. A method of decryption includes the inverse steps and also makes use of the descriptive grammar of the code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.