Partial Data Encryption in Encoders for Fast Secure Decoding
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Solution Overview
Problem
Current encryption methods for images and videos are inefficient in terms of speed and security, as they fail to provide effective partial data encryption, especially in scenarios where computing resources are limited, such as in mobile devices, and often do not encrypt entire email messages or attachments simultaneously.
Innovation Solution
An encoder and decoder system that processes input data using multiple coding methods to generate critical and non-critical data streams, where only the critical streams are encrypted, and then merged with unencrypted streams to create encoded and encrypted data, utilizing entropy encoding and compression to optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional encryption methods are used to encrypt entire image or video data, then data security is improved, but computational complexity and processing time increase significantly
Solution Approach 1:
The patent divides the encoded data stream into critical and non-critical portions, applying encryption only to the critical portion. This segmentation allows the system to maintain strong security for essential data while avoiding the computational burden of encrypting the entire data set, directly resolving the contradiction between security and complexity.
Solution Approach 2:
The patent implements partial encryption by encrypting only the critical portion of the data stream rather than the entire data set. This partial action approach provides sufficient security for the most important data elements while significantly reducing the computational resources required, thereby resolving the contradiction between security strength and processing complexity.
2Reliability
If symmetric encryption algorithms are used to encrypt entire e-mail messages or attachments, then data protection is improved, but processing speed and resource efficiency deteriorate
Solution Approach 1:
The patent segments the e-mail data into critical and non-critical portions, applying encryption only to the critical portion. This segmentation enables the system to maintain strong data protection for essential information while significantly improving processing speed by avoiding unnecessary encryption of non-critical data, thus resolving the contradiction between protection strength and processing efficiency.
Solution Approach 2:
The patent applies partial encryption to only the critical portion of e-mail data rather than encrypting the entire message or attachment. This partial action provides adequate security for the most important elements while dramatically reducing processing time and resource consumption, directly addressing the contradiction between data protection and processing speed.
3Reliability
If conventional partial encryption techniques based on DCT and Wavelets are used for image and video, then some data protection is achieved, but encryption strength and speed are both insufficient
Solution Approach 1:
The patent segments the encoded data stream into critical and non-critical portions and applies encryption only to the critical portion. This approach provides stronger security than conventional techniques by protecting the most essential data elements, while simultaneously improving encryption speed by avoiding processing of non-critical data, thus resolving both the security and speed deficiencies of prior art.
Solution Approach 2:
The patent implements targeted partial encryption on the critical portion of the data stream, providing stronger protection for essential elements compared to conventional full or partial encryption methods. This selective approach also significantly improves processing speed by minimizing the amount of data requiring encryption, thereby resolving both the insufficient security and slow speed problems of existing techniques.
Data Source
AI summary
A method of encoding and encrypting input data (D1) to generate corresponding encoded and encrypted data (E2) is provided. The input data (D1) is encoded to generate intermediate encoded data streams. The intermediate encoded data streams include at least one critical data stream that is critical and essential for subsequent decoding of one or more remaining data streams of the intermediate encoded data streams. The at least one critical data stream is encrypted using one or more encryption algorithms to generate at least one intermediate encrypted data stream. Subsequently, unencrypted portions of the intermediate encoded data streams are merged together with the at least one intermediate encrypted data stream to generate the encoded and encrypted data (E2).