Email Server Automatic Encryption Key Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current email encryption systems, such as Gnu Privacy Guard (GPG) and Pretty Good Privacy (PGP), are cumbersome for end users due to the need for manual key management and configuration, leading to widespread unencrypted email communication, as users often mistakenly encrypt messages with their own public keys rather than recipients', and Virtual Private Networks (VPNs) are not suitable for secure email exchange between diverse entities.
Innovation Solution
Implementing an automated email encryption system where email servers query key servers for recipient and sender public keys, generating temporary key pairs as needed, and transparently encrypting and decrypting emails without user intervention, allowing seamless encryption and decryption processes within email servers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual encryption systems like GPG or PGP are used, then encryption capability is provided, but user complexity and configuration burden increase significantly
Solution Approach 1:
The email server automatically performs key generation, key pair management, and encryption/decryption operations without requiring user intervention. The system self-configures by querying key servers for public keys and automatically generating temporary key pairs when needed, eliminating the manual setup burden while maintaining encryption capability
Solution Approach 2:
The email server acts as an intermediary between users and the encryption system. It handles all cryptographic operations transparently by querying key servers for public keys and performing encryption/decryption in the background, shielding users from the complexity of manual key management while ensuring secure communication
2Reliability
If manual encryption operations are required, then encryption security is maintained, but user time and operational effort increase
Solution Approach 1:
The system performs preliminary actions by automatically querying key servers for public keys before encryption is needed and pre-generating temporary key pairs when not already available. This preliminary key management eliminates the need for users to perform time-consuming manual setup operations while maintaining security
Solution Approach 2:
The email server autonomously handles all encryption operations including querying key servers, retrieving public keys, generating temporary key pairs, and performing encryption/decryption without requiring user time or effort. Users simply send and receive emails while the system handles security operations automatically
3Reliability
If encryption is implemented at the user level, then security is provided, but ease of operation decreases due to key management requirements
Solution Approach 1:
The email server serves as an intermediary that transparently handles all encryption and decryption operations. Users simply compose and send emails as usual, while the server automatically queries key servers for public keys, performs encryption before transmission, and handles decryption of incoming messages, maintaining both security and ease of operation
Solution Approach 2:
The system automatically manages all cryptographic operations including public key retrieval, encryption, and decryption without requiring user action. Users experience no additional complexity in sending or receiving emails while security is maintained through automatic server-side encryption operations
4Reliability
If VPNs are used for encryption, then security between entities is provided, but system complexity and overhead increase
Solution Approach 1:
The patent extracts the encryption function from the complex VPN infrastructure and implements it directly at the email server level. This eliminates the need for full VPN overhead while providing targeted encryption for email communications by querying key servers and performing encryption only when needed, reducing system complexity while maintaining security
Data Source
AI summary
Systems and methods for automated email encryption between email servers are provided. According to one embodiment, an email, originated by a sender using a client device coupled with a private network and directed to a recipient, is received by an email server associated with the private network. A key server is queried for public keys of the recipient and the sender. When the recipient's public key is returned by the key server, it is used to encrypt the email message; otherwise, no encryption is performed. When the sender's public key does not exist on the key server, the email server automatically generates a temporary key pair for the sender on the fly and without requiring intervention on the part of the sender. Finally, both the email message and the public key of the sender are transmitted by the email server to the recipient.