Cryptography Service Security Expectations Validation
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Solution Overview
Problem
Ensuring secure cryptographic operations in multi-tenant computing environments is challenging due to the complexity of managing cryptographic keys from multiple sources, particularly in preventing unauthorized access and ensuring trustworthiness of keys, especially as networks span geographic boundaries and involve multiple entities.
Innovation Solution
Implementing a multi-tenant, API-configurable cryptography service that employs security expectations to validate cryptographic operations, such as decryption and digital signature verification, by using security policies and expectations to ensure only trusted keys are used, with mechanisms like whitelisting, blacklisting, and key validation to maintain data integrity and authenticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cryptographic keys from multiple sources are used in a computer network, then the versatility and functionality of the cryptographic system is improved, but the reliability and security of cryptographic operations deteriorates due to difficulty in ensuring trustworthiness of keys
Solution Approach 1:
The patent introduces an intermediary validation system that sits between multiple cryptographic key sources and the cryptographic operations. This intermediary validates the trustworthiness of keys from various sources through security policies and expectations, allowing the system to utilize diverse key sources while maintaining reliability by filtering out untrusted keys through the intermediary validation layer.
Solution Approach 2:
The patent implements feedback mechanisms where cryptographic operations provide information about key usage and validation results. This feedback loop allows the system to learn from operational outcomes, adjust security policies, and improve key trustworthiness assessment over time, enabling reliable use of multiple key sources through continuous validation and policy refinement.
2Reliability
If security validation mechanisms are implemented to ensure key trustworthiness, then the reliability of cryptographic operations is improved, but the device complexity and operational overhead increases
Solution Approach 1:
The patent creates a universal validation framework that handles multiple types of cryptographic keys from various sources through a single set of security policies and expectations. This multi-functional system can validate different key types (symmetric, asymmetric, digital signatures) using unified principles, reducing overall system complexity compared to having separate validation mechanisms for each key source and type.
Solution Approach 2:
The patent utilizes parameter changes in security expectations and policies to adapt validation requirements based on the specific cryptographic operation and key source. By dynamically adjusting validation parameters rather than applying fixed complex rules, the system achieves high reliability with reduced operational overhead, as the same framework adapts its complexity to match the specific security needs of each operation.
3Productivity
If cryptographic operations are performed without validation, then the productivity and speed of operations is improved, but the security and data integrity deteriorates
Solution Approach 1:
The patent implements preliminary validation of cryptographic keys through security expectations and policies before actual cryptographic operations are performed. This preliminary action ensures that only trusted keys are used, preventing unauthorized access and data compromise, while the validation is designed to be efficient so that it does not significantly slow down subsequent cryptographic operations.
Solution Approach 2:
The patent enables skipping or rushing through validation checks when security expectations are already satisfied or when operating in trusted contexts. Once keys are validated and trust is established, the system can bypass repeated validation overhead, maintaining high productivity while still ensuring security through the initial validation and continuous monitoring of security expectations.
Data Source
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AI summary
A cryptography service allows for management of cryptographic keys and for the evaluation of security expectations when processing incoming requests. In some contexts, the cryptography service, upon receiving a request to perform a cryptographic operation, evaluates a set of security expectations to determine whether the cryptographic key or keys usable to perform the cryptographic operation should be trusted. A response to the request is dependent on evaluation of the security expectations.