Encapsulated Security Tokens Using Nested Digital Signatures
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Solution Overview
Problem
Existing digital transaction systems face challenges in securely controlling and managing the propagation of functional data elements, such as identity and financial information, which can lead to unauthorized access and fraud, especially in the digital environment.
Innovation Solution
The implementation of Encapsulated Security Tokens (ESTs) that use nested digital signatures to secure and propagate functional data elements, ensuring that only authorized entities can access and use them by proving possession through a chain of digital signatures, thereby enhancing security and tracking propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If functional data elements are shared for electronic transactions, then ease of operation and transaction capability are improved, but security and control over propagation are worsened
Solution Approach 1:
The patent implements nested digital signatures where multiple signature layers are embedded within each other. Each layer represents a different level of authorization or validation, with inner signatures contained within outer signatures. This nested structure allows the system to maintain security control while enabling functional data to be shared across multiple transactions and parties, as each nested layer can be independently verified without exposing the underlying data.
2Reliability
If functional data is protected with multiple digital signatures, then security is improved, but device complexity and processing overhead are worsened
Solution Approach 1:
The patent applies digital signatures to functional data elements in advance, before the data is shared or used in transactions. By pre-signing the data with multiple nested signatures during data creation or authorization phases, the system eliminates the need for complex real-time verification during transaction execution. The verification process simply checks previously applied signatures against the data, significantly reducing processing complexity while maintaining high security.
Data Source
AI summary
Functional data for use in one or more digital transactions is secured by using an encapsulated security token (EST). In certain embodiments, the EST is created by encapsulating digital data including the functional data using at least two digital signature systems of two parties. The encapsulation and subsequent de-encapsulation can utilize digital signature systems of the parties that involve a private key for encapsulation and a public key for de-encapsulation. If constructed carefully over a series of rigorous events, the resulting EST can be practically impossible to counterfeit. In addition, a propagation of rights can be tracked for auditing and rights can be easily terminated or modified.