Cryptographic Permit Validation for Pseudo-Anonymous Use
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Solution Overview
Problem
Existing permit systems require significant trust between the holder and verifier, as they rely on verifying the physical identity of the holder and the authenticity of the permit, which can be vulnerable to forgery and misuse.
Innovation Solution
A system that allows for pseudo-anonymous permit validation and management through hierarchical structures, cryptographically secure signature verification, and timestamped revocation mechanisms, enabling flexible and secure interaction with permits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional permit systems verify physical identity and permit authenticity, then trust between holder and verifier is established, but the system becomes vulnerable to forgery and requires significant trust infrastructure
Solution Approach 1:
The patent replaces the mechanical/physical verification system (checking physical identity documents and permit authenticity) with a cryptographic system. Digital permits use cryptographic signatures and hash functions to prove authenticity without requiring trust in physical verification processes. The verifier checks cryptographic proofs rather than physically examining documents, eliminating vulnerability to physical forgery while maintaining reliability.
Solution Approach 2:
The patent introduces cryptographic protocols and digital signatures as intermediaries between the permit holder and verifier. Instead of direct trust requiring physical verification, cryptographic mechanisms serve as an impartial mediator that provides mathematical proof of authenticity. This intermediary layer removes the need for trust-based physical verification while preventing forgery through cryptographic security.
2Reliability
If permit systems require identity verification, then security is maintained, but efficiency and ease of operation are reduced
Solution Approach 1:
The patent implements preliminary cryptographic binding of identity to permit data during permit issuance. The identity verification and cryptographic signature generation are performed in advance when the permit is created, not during validation. During validation, the verifier only needs to check the pre-computed cryptographic proofs, which is computationally efficient. This preliminary action separates the heavy security work from the validation process, maintaining both security and efficiency.
Solution Approach 2:
The patent uses cryptographic hashes and digital signatures as compact representations (copies) of the full identity verification process. Instead of re-verifying identity during each permit check, the system uses pre-computed cryptographic copies that can be quickly validated. These cryptographic copies contain all necessary verification information in a compact, efficiently checkable format.
3Device complexity
If permit systems use fixed permission structures, then simplicity is maintained, but flexibility and adaptability are limited
Solution Approach 1:
The patent segments permissions into discrete, independently manageable units within the digital permit structure. Rather than a monolithic permission system, permissions are divided into separate claims or permission sets that can be individually added, removed, or modified. This segmentation allows the permit to maintain a simple overall structure while providing flexible, granular permission management capability.
Solution Approach 2:
The patent implements dynamic permission structures where permit data can be updated, extended, or revoked after issuance. The digital permit system allows for time-based validity periods, revocation lists, and dynamic permission modification without requiring a completely new permit structure. This dynamic capability provides adaptability while maintaining the simplicity of the underlying data model.
Data Source
AI summary
The present disclosure proposes methods, devices and systems for validating a permit. The method of the first aspect comprises the steps of receiving a request comprising a first permit identifier, wherein the first permit identifier identifies a first permit, and obtaining a first permit data based on the first permit identifier wherein the first permit data comprises data indicative of at least one permission and wherein the at least one permission provides an indication of one or more actions a holder of the first permit can take and/or what the holder of the first permit is allowed to do, wherein the request is a request to validate an expression associated with at least one permission of the first permit and the request comprises data indicative of the expression.