Extracting encryption metadata and terminating malicious connections using machine learning
US10454961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2017 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Jun 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N20/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network traffic hub extracts encryption metadata from messages establishing an encrypted connection between a smart appliance and a remote server and determines whether malicious behavior is present in the messages. For example, the network traffic hub can extract an encryption cipher suite, identified encryption algorithms, or a public certificate. The network traffic hub detects malicious behavior or security threats based on the encryption metadata. These security threats may include a man-in-the-middle attacker or a Padding Oracle On Downgraded Legacy Encryption attack. Upon detecting malicious behavior or security threats, the network traffic hub blocks the encrypted traffic or notifies a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.