Secure DOM Elements for Client-Side Encryption

The patent introduces secure elements as an intermediary component between the web application and the data storage system. These secure elements act as a mediator that receives data from web applications, encrypts it using cryptographic tools, and stores it in secure storage. The secure elements prevent direct access to clear data by malicious web applications while still allowing authorized access through cryptographic mechanisms.

The patent segments the data storage system into multiple components: regular storage for unencrypted data, secure storage for encrypted data, and secure elements that manage the encryption process. This segmentation isolates sensitive data in a protected environment, preventing web applications from directly accessing clear data values while maintaining the functionality of web applications through controlled data retrieval.

The secure elements serve as an intermediary layer between the DOM and web applications. Instead of storing clear data values directly in the DOM where malicious code can access them, the system stores encrypted values in the DOM and uses secure elements as intermediaries to decrypt and provide data to authorized web applications through controlled interfaces.

The patent applies different security qualities to different parts of the data storage system. Regular DOM elements maintain their traditional accessibility for non-sensitive data, while secure elements implement specialized encryption and access control mechanisms for sensitive data. This local differentiation allows web applications to access necessary data while preventing unauthorized access to sensitive information.