Token Requestor Registration via Service Provider Mediation
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Solution Overview
Problem
Current systems face challenges in token requestors registering with token service providers, requiring separate registrations and multiple encryption key pairs, and lack efficient trust assessment of token requestors.
Innovation Solution
A method and system where a service provider computer facilitates token requestors' registration and communication with a token service computer using unique identifiers and a single encryption key, enabling trust assessment and simplified key management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each token requestor registers individually with the token service computer, then the token service computer can authenticate each requestor independently, but the registration process becomes burdensome and time-consuming for all participants
Solution Approach 1:
The service provider computer acts as an intermediary between multiple token requestors and the token service computer. It consolidates registration requests from multiple requestors and submits a single batch registration to the token service computer, reducing individual registration overhead while maintaining authentication reliability through the service provider's validation role.
Solution Approach 2:
Multiple individual registration processes are merged into a single batch registration operation. Instead of each token requestor separately registering with the token service computer, their registrations are combined into one consolidated request, significantly reducing the total number of registration steps while preserving security through the service provider's oversight.
2Reliability
If different encryption key pairs are used for each token requestor communicating with the token service computer, then communication security is enhanced, but key management complexity increases significantly
Solution Approach 1:
The encryption key management is segmented into two distinct layers: (1) A shared encryption key between the service provider computer and the token service computer for secure communication channels, and (2) Individual encryption key pairs for each token requestor communicating with the service provider. This segmentation maintains security while simplifying key management by reducing the number of keys the token service computer must manage directly.
Solution Approach 2:
The service provider computer serves as an intermediary that manages encryption keys for token requestors. Instead of the token service computer directly managing individual keys for each requestor, the service provider handles key distribution and management for its affiliated requestors, reducing key management complexity at the token service computer while maintaining strong encryption security.
3Measurement precision
If the token service computer independently evaluates each token requestor's trustworthiness, then authentication accuracy may be improved, but the assessment capability is limited without additional contextual data
Solution Approach 1:
The service provider computer acts as an intermediary that provides contextual information about token requestors to the token service computer. It attests to the trustworthiness of its affiliated requestors based on established relationships and historical behavior, enabling the token service computer to make more accurate trust assessments without independently evaluating each requestor from scratch.
Solution Approach 2:
The service provider computer performs preliminary trust assessment and validation of token requestors before they interact with the token service computer. By pre-establishing trust relationships and validating requestor credentials in advance, the service provider enables the token service computer to make faster and more accurate trust decisions during actual transactions without needing to conduct full independent evaluations each time.
Data Source
AI summary
A method is disclosed. The method includes transmitting, by a service provider computer to a token service computer, a token request message comprising a service provider identifier associated with the service provider computer, and a token requestor identifier associated with a token requestor of a plurality of token requestors operatively coupled to a service provider computer. In response to transmitting the token request message, receiving, by the service provider computer from the token service computer, a token. The method also includes transmitting, by the service provider computer to the token requestor, the token.