Display Authentication Bypassing Encryption for Internal Connections
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Solution Overview
Problem
Information handling systems with internal display devices face increased complexity and cost due to the inclusion of encryption/decryption logic on digital video interconnections, which is not necessary for internal connections and can reduce speed.
Innovation Solution
The system determines whether a display connection is internal or external by reading configuration information, and if internal, it bypasses encryption/decryption logic, thereby reducing complexity and cost by eliminating encryption/decryption modules on internal digital video interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encryption/decryption logic is included on all digital video interconnections, then security of external connections is improved, but device complexity and cost increase
Solution Approach 1:
The patent applies local quality by making the encryption/decryption capability optional and location-specific. The system determines whether a display connection is internal or external and applies encryption only to external connections. This selective application of security features to specific locations (external ports) rather than universally reduces overall device complexity while maintaining necessary security.
2Reliability
If encryption/decryption logic is included on all digital video interconnections, then security of external connections is improved, but cost increases
Solution Approach 1:
The patent reduces manufacturing cost by applying encryption/decryption logic only where needed (external display connections) rather than universally. The system identifies external connections and enables encryption only for those ports, allowing manufacturers to produce cost-effective internal display devices without unnecessary security hardware while still securing external connections.
3Reliability
If encryption/decryption logic is included on internal digital video interfaces, then security is improved, but data transfer speed decreases
Solution Approach 1:
The patent optimizes data transfer speed by eliminating encryption/decryption overhead on internal display connections where security is not required. The system identifies internal connections and disables encryption logic for those specific interfaces, allowing maximum data transfer speeds for internal displays while maintaining encrypted communication on external ports.
Data Source
AI summary
A method includes determining if a display connection is in an information handling system, reading configuration information from a display, determining whether the configuration information identifies the display as an internal device, and training a data link. A memory includes code to perform a method of determining if a display connection is in an information handling system, reading configuration information from a display, determining if the configuration information identifies the display as an internal device, and training a data link. An information handling system includes a memory with code, a display, and a graphics processor that executes the code. The code operates to determine if a display connection is in the information handling system, read configuration information from the display, determine if the configuration information identifies the display as an internal device, and train a data link.