Encrypted Data Transmission via Modification Rules
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Solution Overview
Problem
Conventional cryptographic techniques used for secure data transmission in electronic transactions are susceptible to various attacks and are computationally costly, necessitating improvements for enhanced security and reduced computational expense.
Innovation Solution
Implementing additional modifications such as false bit injection and bitwise operations to encrypt messages, with modification rules transmitted via different communication channels, and dynamically adjusting these rules based on transmission security levels to enhance security and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional symmetric-key algorithms are used for encryption, then encryption speed is improved, but security is worsened due to susceptibility to attacks
Solution Approach 1:
The encryption process is divided into two independent stages: first, symmetric-key encryption is applied to encrypt the plaintext message efficiently; second, a separate modification function is applied to the ciphertext to add security layers. This segmentation allows each stage to specialize - speed in the first stage, security in the second - resolving the contradiction between encryption speed and security.
Solution Approach 2:
A modification function acts as an intermediary between the symmetric-key encryption and the final ciphertext. This intermediary layer processes the encrypted data through additional transformations (such as bitwise operations, substitution, or permutation) that enhance security without significantly impacting the overall encryption speed, thus bridging the gap between speed and security requirements.
2Reliability
If conventional asymmetric key algorithms are used for encryption, then security is improved, but computational cost is worsened
Solution Approach 1:
The cryptographic process is segmented into key generation (using asymmetric algorithms only when needed), key exchange, and message encryption (using symmetric algorithms with modification). By separating the key management functions from the bulk data encryption, the system achieves high security through asymmetric keys while maintaining low computational cost during actual message encryption through symmetric keys enhanced with modification functions.
Solution Approach 2:
Asymmetric key pairs are generated and exchanged in advance before the actual message encryption takes place. This preliminary action establishes secure communication channels using computationally expensive asymmetric algorithms only once, after which efficient symmetric-key encryption with modification can be used for all subsequent communications, significantly reducing overall computational cost while maintaining security.
3Reliability
If modification rules are transmitted via different communication channels, then security is improved, but device complexity is worsened
Solution Approach 1:
The modification function is designed to be universally applicable across different communication channels and encryption scenarios. The same modification framework can process ciphertext regardless of the underlying communication channel, reducing the need for channel-specific complexity while maintaining security benefits of separate transmission paths for keys, modification rules, and messages.
Data Source
AI summary
Systems and methods for message encryption include transmitting, to a first device through a first communication channel, a modification rule message including a modification rule. A first message is encrypted using a first key to generate an encrypted message. The encrypted message is modified based on the modification rule to generate a modified encrypted message. The modified encrypted message is transmitted to the first device through a second communication channel.