Inventor

WYSEUR BRECHT

CH20 patents

⚠️ This page may combine multiple inventors who share the name “WYSEUR BRECHT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WYSEUR BRECHT

NAGRAVISION SA

Integrated circuit

Key sequence generation for cryptographic operations

Method to verify the execution integrity of an application in a target device

Block cryptographic method for encrypting/decrypting messages and cryptographic devices for implementing this method

Data transmission method, transmitter and receiver

Software protection from attacks using self-debugging techniques

On demand code decryption

Pairing method between a multimedia unit and at least one operator, multimedia unit, operator and personalization entity for the implementation of this method

Method for watermarking encrypted digital content, method and device for retrieving a unique identifier from watermarked content and content distribution network

Method to verify the execution integrity of an application in a target device

Key sequence generation for cryptographic operations

Method to detect cloned software

Method for converting a conditional access content and receiver for the implementation for said method

NAGRAVISION SARL

Sending and receiving messages

Block cryptographic method for encrypting/decrypting messages and cryptographic devices for implementing this method

Sending and receiving messages

On demand code decryption

Software tamper resistance

Local decision making

FISCHER JEAN-BERNARD

Method to detect cloned software