Timestamp-Based Authentication with Redirection for Unauthorized Access
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Solution Overview
Problem
Current computer security methods are inadequate in preventing unauthorized access, as hackers can exploit stolen user credentials to gain access to systems and networks, and existing authentication techniques do not effectively verify the identity of both the user and their device.
Innovation Solution
A timestamp-based authentication method that uses a shared authentication process between two computing systems, where each system generates a number based on a timestamp, ensuring that only authorized devices with the correct credentials can access secure systems, even if user credentials are stolen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional username and password authentication is used, then ease of operation is improved, but security is worsened because stolen credentials can be exploited by hackers
Solution Approach 1:
The authentication process is segmented into multiple independent components: username verification, device identifier verification, and timestamp-based challenge-response verification. Each component operates separately and must all succeed for authentication to complete, preventing hackers from using stolen credentials alone to gain access.
Solution Approach 2:
The system performs preliminary device identification and credential verification before the actual authentication challenge. The server requests device identifiers (MAC address, hardware ID) and validates them against stored records before issuing the timestamp challenge, ensuring that even if credentials are stolen, the attacker cannot complete authentication without the legitimate device.
2Ease of operation
If only user credentials are verified, then ease of operation is improved, but security is worsened because device identity cannot be confirmed
Solution Approach 1:
The system merges multiple verification methods into a single authentication flow: username/password verification, device identifier matching, and timestamp-based challenge-response. All three verifications are combined and must succeed together, ensuring both user identity and device identity are confirmed simultaneously without requiring separate authentication processes.
Solution Approach 2:
The timestamp-based challenge-response mechanism acts as an intermediary verification layer between credential checking and device identification. The server issues a timestamp challenge that the client must sign with its private key, providing cryptographic proof of device identity without requiring direct device fingerprinting or hardware trust anchors.
3Reliability
If timestamp-based authentication with device verification is implemented, then security is improved, but device complexity is worsened
Solution Approach 1:
The patent replaces complex mechanical or hardware-based device verification systems with cryptographic software-based verification. Instead of requiring hardware tokens, smart cards, or biometric scanners, the system uses standard cryptographic libraries to generate and verify timestamp signatures, achieving strong device verification through software alone.
Solution Approach 2:
The timestamp-based challenge-response mechanism serves multiple functions simultaneously: it verifies device identity, prevents replay attacks, ensures temporal validity of credentials, and provides cryptographic proof of possession of device private keys. This single mechanism replaces what would otherwise require multiple separate verification systems.
Data Source
AI summary
Techniques for computer security, and more specifically timestamp-abased authentication, are described. Some implementations provide an authentication method that utilizes an authentication process that is shared as a secret between a client and an authenticator. The process provides as output a number that is based on a timestamp. To authenticate the client when it attempts to access a target service, both the client and authenticator execute the authentication process using locally generated timestamps. If the outputs of the authentication process match, the client is authenticated. If not, subsequent network communications from the client are either denied or redirected to an alternative computing system that masquerades as the target service.