Cryptographic Agility System for Dynamic Certificate Management
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Solution Overview
Problem
Conventional software applications lack a convenient mechanism for dynamically changing cryptographic algorithms without modifying their base code, leading to time-consuming and error-prone updates, and require corresponding certificate changes, which is inefficient in addressing evolving security threats and compliance with changing cryptographic standards.
Innovation Solution
A cryptographic agility system that decouples cryptographic logic from applications, allowing dynamic selection and configuration of algorithms and certificates based on contextual information, using a secure digital ledger for auditable operations, enabling seamless updates and compliance with changing security requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If cryptographic algorithms are hard-coded into applications, then application stability and simplicity are improved, but adaptability to changing security threats and standards deteriorates
Solution Approach 1:
The system segments cryptographic functionality into separate, interchangeable algorithm modules that can be independently selected and updated. The application code remains stable while cryptographic components are divided into replaceable units that can be swapped based on security requirements without modifying the base application.
Solution Approach 2:
A cryptographic agility system acts as an intermediary layer between the application and cryptographic algorithms. This mediator manages algorithm selection, certificate validation, and key management, allowing the application to remain unchanged while the intermediary handles adaptations to new cryptographic standards and threats.
2Reliability
If cryptographic algorithms are updated to address new threats, then security is improved, but complexity of implementation and maintenance increases
Solution Approach 1:
The cryptographic agility system provides universal functionality that manages multiple cryptographic algorithms through a unified interface. It handles key generation, certificate management, and algorithm selection across different cryptographic schemes (RSA, ECC, post-quantum algorithms) through a single system, reducing the complexity that would otherwise be distributed across the entire application.
Solution Approach 2:
The system implements self-service mechanisms for cryptographic updates, including automatic algorithm selection based on threat models, automated certificate validation and renewal, and self-managed key rotation. This reduces the burden on users and administrators to manually manage cryptographic complexity while maintaining high security standards.
3Adaptability or versatility
If base code modification is required for algorithm changes, then cryptographic control is improved, but time consumption and error risk increase
Solution Approach 1:
The system implements dynamic cryptographic configuration where algorithms, keys, and certificates can be changed at runtime without recompiling or redeploying the application. The cryptographic agility layer allows hot-swapping of algorithm modules and dynamic updates of cryptographic parameters, enabling rapid adaptation to new threats without the time-consuming process of code modification and retesting.
Data Source
AI summary
The disclosure provides an approach for certificate management for cryptographic agility. Embodiments include receiving, by a cryptographic agility system, a cryptographic request related to an application. Embodiments include selecting, by the cryptographic agility system, a cryptographic technique based on contextual information associated with the cryptographic request. Embodiments include determining, by the cryptographic agility system, based on the cryptographic request, a certificate for authenticating a key related to the cryptographic technique. Embodiments include providing, by the cryptographic agility system, the certificate to an endpoint related to the cryptographic request for use in authenticating the key.