Dynamic Encryption Attributes for Data Stream Security
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Solution Overview
Problem
Traditional data stream encryption methods fail to dynamically adjust encryption strength based on system resource consumption and channel quality, leading to inefficient resource utilization, degraded reproduction quality, and inability to adapt to varying network conditions.
Innovation Solution
A method and apparatus that adjust encryption attributes during transmission to optimize encryption strength based on current resource consumption and channel quality, allowing for real-time adaptation of encryption policies to balance system resource utilization, data security, and reproduction quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional single-policy encryption is applied to data streams, then data security is provided, but system resources are wasted when resources are not fully utilized and reproduction quality is degraded when resources are over-utilized
Solution Approach 1:
The patent implements dynamic encryption by adjusting encryption attributes (such as encryption strength, algorithm selection, or processing granularity) in real-time based on the receiver's resource status and channel conditions. This allows the system to optimize the balance between security and resource consumption, avoiding both over-protection that wastes resources and under-protection that compromises security.
Solution Approach 2:
The system changes encryption parameters dynamically according to receiver capabilities and network conditions. The sender adjusts encryption attributes based on feedback about receiver resource status, allowing the same encryption mechanism to adapt its behavior to different operational contexts, thereby resolving the contradiction between maintaining security and efficient resource use.
2Reliability
If strong encryption is applied throughout the entire data stream, then data security is enhanced, but reproduction quality is degraded because the receiver cannot receive enough data for decrypting in time
Solution Approach 1:
The patent applies different encryption strengths or types to different portions of the data stream based on their importance and the receiver's capability to process them. Critical data portions may receive stronger encryption while less critical portions use weaker encryption, ensuring that the receiver can decrypt and reproduce the data in time without compromising overall security.
Solution Approach 2:
The system applies encryption selectively rather than uniformly across the entire data stream. By encrypting only the necessary portions with appropriate strength, the system avoids the degradation that would result from applying strong encryption to all data, while still maintaining adequate security for the protected portions.
3Device complexity
If the same encryption policy is adopted for the whole volume of a data stream, then implementation is simple, but reproduction quality is degraded due to frequent changes in channel quality
Solution Approach 1:
The patent implements dynamic adjustment of encryption policies based on real-time channel quality feedback. When channel conditions deteriorate, the system automatically adjusts encryption attributes to ensure the receiver can still process the data stream in time, thereby maintaining reproduction quality without requiring complex manual reconfiguration.
4Reliability
If encryption strength is increased to improve data security, then protection is enhanced, but system resource consumption increases
Solution Approach 1:
The system dynamically changes encryption parameters such as algorithm selection, key length, or processing intensity based on the receiver's resource status. When resources are abundant, stronger encryption is applied; when resources are constrained, the system reduces encryption intensity, thereby optimizing the balance between security and resource consumption.
Data Source
AI summary
The present invention provides methods, systems and apparatus for encrypting and for decrypting a data stream, for securely sending a data stream and for securely receiving a data stream, and for secure transmission of a data stream. The data stream, after at least a part of it being encrypted, is transmitted from a sender to a receiver via a channel. An exemplary method for encrypting comprises: adjusting encryption attributes during transmission; encrypting the data stream according to the adjusted encryption attributes; and transmitting the encrypted data stream and information of the encryption attributes to the receiver.