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Data security

Schlage Lock Company LLC Develops Access Control System for Detecting Secure Data Copied Between Devices

Strategic Insights

— 2 min read

In a bid to enhance security, Schlage Lock Company LLC has invented an access control system that leverages an access control architecture for detecting secure data copied between devices. According to the patent file on September 30, 2025, the system generates an authentication diversified key based on a master key and a first key diversification input, which is securely stored at the credential system and the reader device. The system also generates an encryption diversified key based on the master key and a second key diversification input, which is determined based on the portion of the second key diversification input of the credential blob and the first key diversification input.

Key Takeaways:

  • The access control system generates a unique system, components, and methods for detecting secure data copied between devices.
  • The system uses a credential system, a mobile device, and a reader device to detect and validate secure data copied between devices.
  • The access control system generates an authentication diversified key based on a master key and a first key diversification input.
  • The system generates an encryption diversified key based on the master key and a second key diversification input.
  • The system validates the credential data based on the encryption diversified key and extracts the credential for use in an access control decision.
  • The first key diversification input can be a random number, and the second key diversification input can be based on the first key diversification input and a second random number different from the first random number.
  • The system stores the authentication diversified key in a secure key storage separate from the first key diversification input.
  • The system transmits instructions to a lock device to perform an access control action based on the extracted credential.
  • The system receives credential data from the mobile device, encrypted with the session key, and generates the encryption diversified key in response to decryption of the encrypted credential data using the session key.

Statistics:

  • The Schlage Lock Company LLC access control system is designed to detect secure data copied between devices in an access control system that includes a credential system, a mobile device, and a reader device.
  • The system generates a unique system, components, and methods for detecting secure data copied between devices.
  • The access control system generates an authentication diversified key based on a master key and a first key diversification input, which is securely stored at the credential system and the reader device.
  • The system generates an encryption diversified key based on the master key and a second key diversification input, which is determined based on the portion of the second key diversification input of the credential blob and the first key diversification input.

Sources:

  • Baumgarte, Joseph W. (2025, September 30). Access control architecture for detecting secure data copied between devices. U.S. Patent Number 12430965, filed June 7, 2023, and published online on September 30, 2025. Patent URL (for desktop use only): https://ppubs.uspto.gov/pubwebapp/external.html?q=(12430965)&db=USPAT&type=ids
  • NewsRx LLC (2025, October 21). Schlage Lock Company LLC Develops Access Control System for Detecting Secure Data Copied Between Devices. VerticalNews, Copyright 2025.

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