Secure Server-to-Server Content Distribution via Encrypted User Data
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Solution Overview
Problem
Existing content distribution systems compromise user privacy by using third-party cookies to track user interests and access sensitive user data, leading to potential breaches in data security and privacy.
Innovation Solution
Implementing a secure digital distribution system that encrypts user data and uses differential privacy techniques to select and distribute digital components, ensuring that only encrypted content is accessible to publishers, preventing them from inferring user interests or accessing sensitive information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If third-party cookies are used to track user interests and distribute content, then content relevance to user interests is improved, but user privacy and data security are compromised
Solution Approach 1:
A secure distribution system acts as an intermediary between the publisher server and client device. The system receives encrypted user data, performs decryption and content selection in a secure environment, then returns encrypted component data without exposing raw user data to the publisher. This mediator architecture enables content personalization while protecting user privacy.
Solution Approach 2:
The system separates the content selection function from the publisher server by implementing it in a dedicated secure distribution system. This segmentation ensures that the publisher cannot access user data while still receiving relevant content selections, dividing the architecture into distinct security zones.
2Object-affected harmful factors
If encrypted user data is transmitted to the publisher server, then user privacy is improved, but the publisher server cannot effectively select relevant content
Solution Approach 1:
The secure distribution system serves as a trusted intermediary that temporarily holds decryption capabilities. It receives encrypted user data from the publisher, decrypts it in a secure environment to perform effective content selection, then re-encrypts the results before returning them to the publisher. This resolves the contradiction by enabling effective selection without giving the publisher direct access to plaintext user data.
Solution Approach 2:
The system performs content selection in advance within the secure distribution system before returning encrypted results to the publisher. By pre-selecting relevant content components while user data is still encrypted or in the secure environment, the system ensures both privacy protection and selection effectiveness without requiring the publisher to handle plaintext user data.
3Object-affected harmful factors
If a secure distribution system is implemented to protect user data, then user privacy is improved, but system complexity increases
Solution Approach 1:
While introducing a secure distribution system does increase architectural complexity, it consolidates security functions in a single dedicated component rather than distributing security logic across multiple systems. The intermediary handles all encryption, decryption, and secure communication protocols in one place, making the system more manageable than if each component had to implement its own security measures.
Data Source
AI summary
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for selecting and distributing digital components to client devices in ways that protect user privacy and confidential data of content platforms and/or digital component providers are described. In one aspect, a method includes receiving, by a publisher server of a publisher and for a client device of a user, a content request that requests content of the publisher for presentation to the user, the content request comprising a set of data that includes encrypted user data. The publisher server provides the set of data to a secure digital distribution system configured to decrypt the encrypted user data to obtain cleartext user data and select candidate digital components based on the user data. The publisher server receives, from the secure distribution system, candidate digital component data for each of one or more candidate digital components.