Policy Validation via Signature Blocks and Metadata
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Solution Overview
Problem
The complexity of access policies in cloud environments often leads to inaccuracies in predicting policy impacts due to the inability to determine the source or modifications of policies, resulting in potential breaches and compliance issues.
Innovation Solution
Implementing a policy validation system that includes a policy manager, validators, and a claims manager to validate and canonicalize policies, attach signature blocks for verification, and store metadata to track policy generation and modifications, ensuring compliance and accountability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a robust and flexible policy framework is provided to meet user access control needs, then policy capabilities are improved, but policy complexity increases leading to inaccurate predictions and enforcement
Solution Approach 1:
The patent segments the policy system into distinct components: policy definitions, validation rules, metadata structures, and enforcement mechanisms. This segmentation allows each component to be independently managed and validated, reducing overall system complexity while maintaining flexible policy capabilities.
Solution Approach 2:
The patent implements preliminary validation of policies against predefined rules before policies are enforced. This preliminary action ensures policies are syntactically correct and semantically valid, preventing complex or erroneous policies from being deployed and causing issues during enforcement.
2Device complexity
If policy source and modification tracking is not implemented, then system simplicity is maintained, but the ability to predict policy impact and determine policy source is lost
Solution Approach 1:
The patent implements feedback mechanisms through metadata that tracks policy source, version, and modification history. This feedback loop provides visibility into policy changes and their origins, enabling accurate impact prediction while maintaining systematic tracking without excessive complexity.
Solution Approach 2:
The patent introduces metadata as an intermediary layer between policy definitions and enforcement. This metadata carries source information, version data, and validation results, enabling traceability and impact analysis without directly complicating the core policy enforcement mechanism.
3Productivity
If policies are not validated before enforcement, then processing speed is improved, but policy accuracy and compliance are compromised
Solution Approach 1:
The patent performs preliminary validation of policies against syntax and semantic rules before enforcement. This preliminary action ensures policies are correct and compliant upfront, preventing errors during enforcement while maintaining processing efficiency through automated validation.
Solution Approach 2:
The patent replaces manual policy review processes with automated validation mechanisms that check policies against predefined rules. This substitution maintains processing speed by using algorithmic validation rather than human review, while improving policy accuracy through consistent rule-based checking.
Data Source
AI summary
Validated policies can be utilized where information regarding the validation travels with the policies. A policy validator can validate information about a policy, such as may relate to compliance with policy requirements and accuracy of the policy output. Information about the validation, such as one or more claims of validity and information about the validator, can be provided with the policy as metadata, such as in a signature block. The signatures, or other verification mechanisms, can be used to ensure that the policy is not modified after the validation. When attempting to utilize the policy, the signature block can be evaluated along with the policy to determine whether to grant the access. In some embodiments the signature block may not be evaluated with the policy, but may be used subsequently for auditing or compliance determinations.