Segmented Encryption Device Using XOR Gates and Flip-Flops
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Solution Overview
Problem
Conventional data encryption devices are complex, inflexible, and difficult to modify, leading to cumbersome and unreliable encryption and recovery systems that compromise data integrity during transfer.
Innovation Solution
A flexible encryption and recovery system utilizing N connected encryption/recovery units with exclusive-OR gates and flip-flops, along with a configuration file for automatic device selection, allowing for easy modification and secure data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional encryption devices are used to ensure data security, then data encryption can be achieved, but the devices become complex, large, and difficult to modify
Solution Approach 1:
The encryption device is divided into N independent encryption units connected in series, each handling one bit of data. Each unit contains identical components (exclusive-OR gate and flip-flop), allowing the system to achieve complex encryption functionality through simple repeated structures rather than a single complex device
Solution Approach 2:
The encryption device uses flip-flops that can be dynamically controlled by clock signals to switch between different encryption modes or parameters. This dynamic control allows the same hardware structure to adapt to different encryption requirements without physical modification, resolving the contradiction between security and flexibility
2Reliability
If conventional encryption devices are used for data transfer, then data can be encrypted, but the recovery device becomes large and slow
Solution Approach 1:
The recovery device is segmented into N parallel recovery units, each capable of independently recovering one bit of data simultaneously. This parallel architecture allows the recovery process to complete in a single clock cycle for N-bit data, achieving high speed without requiring a large sequential recovery process
Solution Approach 2:
The recovery device uses the same exclusive-OR gates and flip-flops as the encryption device but configured in reverse. Since the encryption operation is its own inverse (XORing with the same key restores the original data), the recovery device can use identical simple components arranged in parallel, achieving both speed and reliability without complexity
3Adaptability or versatility
If manual intervention is used to modify encryption parameters, then parameter changes can be made, but the process becomes time-consuming and error-prone
Solution Approach 1:
The encryption device incorporates clock signals that dynamically control the flip-flops to switch between different encryption parameters or modes. This dynamic reconfiguration is achieved through timing control rather than manual intervention, allowing parameter changes to occur automatically at the appropriate moment in the data processing cycle without time loss or errors
Solution Approach 2:
The encryption device is designed to automatically adapt to different data processing requirements through its modular structure and clock-controlled operation. The system self-configures by using the timing information from clock signals to activate appropriate encryption units and parameters without requiring external manual adjustment, achieving both flexibility and efficiency
Data Source
AI summary
The present invention provides a flexible encryption device, comprising N encryption units connected in series for encrypting N-bit input data, each one of the N encryption units further comprising an exclusive-OR gate for receiving an input data; and a flip-flop connected coupled to the exclusive-OR gate. Furthermore, the present invention also provides the data transferring system that can be easily modified without the needs of manual intervention.