Secure Communications Terminal Using Dynamic Key Segmentation
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Solution Overview
Problem
Existing communication security systems, particularly those using asymmetric encryption methods, are cumbersome and offer inadequate protection, as they rely on static key pairs that can be compromised, allowing for interception and decryption of vast amounts of data.
Innovation Solution
A system utilizing secure communications terminals connected to a public key server that generates and manages shared symmetric keys and enhanced public keys, ensuring each message is encrypted with a unique key, limiting exposure in case of key compromise, and incorporating both symmetric and asymmetric encryption for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If asymmetric encryption methods are used, then communication can be established with public/private key pairs, but security protection is insufficient and key compromise allows decryption of vast amounts of data
Solution Approach 1:
The patent segments the encryption system into multiple components: asymmetric key pairs for initial secure exchange, symmetric keys for actual data encryption, and message-specific keys for individual message protection. This segmentation allows each component to perform its specialized function optimally while reducing overall system vulnerability.
Solution Approach 2:
The patent implements dynamic key generation where new symmetric and message-specific keys are generated for each communication session and even each individual message. This dynamic approach ensures that compromise of one key does not endanger previous or future communications, directly addressing the security weakness of static key pairs.
2Reliability
If symmetric encryption methods are used, then stronger protection is achieved, but key exchange becomes cumbersome and key renewal is infrequent
Solution Approach 1:
The patent performs preliminary action by using asymmetric encryption to securely exchange symmetric keys before the actual symmetric encryption process begins. This preliminary key exchange through the less secure asymmetric channel establishes a secure foundation for subsequent symmetric encryption without requiring direct symmetric key exchange.
Solution Approach 2:
The patent uses asymmetric encryption as an intermediary mechanism to facilitate the secure transfer of symmetric keys. The asymmetric key pair acts as a mediator that enables the otherwise difficult symmetric key exchange problem to be solved through a more convenient asymmetric key exchange process.
3Ease of operation
If static key pairs are used for encryption, then key management is simplified, but once compromised a vast amount of communications can be deciphered
Solution Approach 1:
The patent implements disposable, short-lived encryption keys that are generated for each message or small group of messages and then discarded. This approach sacrifices the simplicity of long-term key management but gains immense security by ensuring that each key protects only a limited scope of data, making compromise irrelevant to other communications.
Data Source
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AI summary
A server and method for providing a content selection is provided. The server receives content targeting parameters and obtains content items from at least one content site based on the content targeting parameters. The server can further identify content descriptors for the content items and generate a first content cluster from a subset of the content items based on the content descriptors. The server can further generate a second content cluster from a second subset of the content items based on the content descriptors and rank the first and the second content clusters in an order of usefulness. The ranking of the content clusters can be based on at least one of an importance of content, a recentness of the content items and a size of the content cluster.