Peer-to-Peer Security Protocol Auditing via Message Copying
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing peer-to-peer security protocols face challenges in integrating message auditing capabilities while maintaining future secrecy, as intercepted messages cannot be logged in their original encrypted form due to the peer-to-peer cryptographic message protection.
Innovation Solution
A system where messages are copied and sent to an auditing server, encrypted with a public key, allowing for secure auditing without compromising future secrecy, using a combination of key pairs and ephemeral keys to ensure multiple layers of security and restrict malicious access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If peer-to-peer cryptographic message protection is implemented, then message security and future secrecy are improved, but message auditing capability deteriorates
Solution Approach 1:
The message is segmented into two parts: an encrypted payload that maintains security and an unencrypted metadata portion that enables auditing. The encrypted message is divided such that cryptographic protection is applied only to the sensitive content while allowing audit servers to access and log message headers and routing information without decryption keys.
Solution Approach 2:
An audit server is introduced as an intermediary component that receives copies of encrypted messages without possessing the decryption keys. This mediator enables auditing functionality by logging message metadata and encrypted content while maintaining the peer-to-peer security model, as the audit server cannot decrypt messages but can still perform monitoring and compliance checks on the encrypted data.
2Ease of operation
If messages are decrypted for auditing purposes, then message auditing capability is improved, but future secrecy deteriorates
Solution Approach 1:
The auditing capability is extracted from the message decryption process. Instead of decrypting messages to audit them, the system extracts and logs only the necessary metadata and encrypted content portions that do not require decryption. This separation allows auditing to proceed without compromising the future secrecy property, as the audit server never obtains plaintext messages.
3Ease of operation
If encrypted messages are logged in original form, then message auditing capability is improved, but message security deteriorates
Solution Approach 1:
The system performs preliminary encryption of messages before they are logged or transmitted. By encrypting messages in advance using peer-to-peer cryptographic protocols and then logging the already-encrypted form, the system eliminates security gaps that would exist if decryption were required for logging. The encrypted messages are prepared for auditing in their protected state, preventing any intermediate exposure of plaintext.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An apparatus, computer program, and method are afforded for providing a peer-to-peer security protocol. In operation, a message is identified that is directed from a first peer device to a second peer device. Further, the message is copied, so that a copy of the message is caused to be sent to an auditing server.