Chaotic Sequence Generator for High-Speed Cryptographic Decryption

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Solution Overview

Problem

Current cryptographic systems face challenges with latency and computational intensity, particularly in decrypting large data stores, as linear algorithms are insecure and non-linear algorithms require extensive computation for partial data access, making them unsuitable for high-speed encryption and decryption of large datasets.

Innovation Solution

A high-speed cryptographic system utilizing digitally generated chaotic sequences, where a chaotic sequence generator produces sequences with high entropy, allowing for secure encryption and decryption with symmetric computational requirements, enabling efficient decryption of specific data portions without computing the entire sequence.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If non-linear encryption algorithms are used, then security is improved, but decryption speed and computational efficiency deteriorate

Engineering Contradiction:

ImprovesecurityVSAvoiddecryption speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent segments the decryption process by allowing selective decryption of specific data portions using portion identifiers. Instead of requiring decryption of entire large datasets, the system divides the encrypted data into manageable portions that can be independently decrypted based on user credentials and access rights, thereby improving decryption speed while maintaining security through the use of non-linear algorithms on smaller segments.

Inventive Principle:

Principle #1Segmentation

2Reliability

If non-linear encryption algorithms are used, then security is improved, but computational requirements worsen

Engineering Contradiction:

ImprovesecurityVSAvoidcomputational requirements

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent reduces computational requirements by segmenting the encrypted data into portions and applying non-linear decryption algorithms only to the specific portions needed rather than the entire dataset. This selective approach maintains the security benefits of non-linear algorithms while significantly reducing the computational energy required compared to decrypting large amounts of data.

Inventive Principle:

Principle #1Segmentation

3Productivity

If linear encryption algorithms are used, then decryption speed is improved, but security deteriorates

Engineering Contradiction:

Improvedecryption speedVSAvoidsecurity

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent combines the speed advantage of linear algorithms with the security of non-linear algorithms by segmenting the data and using portion-based selective decryption. The system applies efficient decryption methods to small segments while the overall security structure relies on the complexity of the non-linear algorithm, achieving both fast decryption and robust security.

Inventive Principle:

Principle #1Segmentation

4Reliability

If full sequence generation is required for decryption, then security is improved, but latency worsens

Engineering Contradiction:

ImprovesecurityVSAvoidlatency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent extracts and utilizes portion identifiers from user credentials to directly access and decrypt specific portions of encrypted data without requiring generation of the full chaotic sequence. This extraction approach maintains security by still using the complete sequence generation capability when needed, while reducing latency by directly computing only the necessary portions for the requested data access.

Inventive Principle:

Principle #2Taking out (Extraction)

5Reliability

If asymmetric computational requirements are used, then security is improved, but system complexity worsens

Engineering Contradiction:

ImprovesecurityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent maintains the beneficial asymmetric computational requirements of non-linear algorithms for security while reducing system complexity through symmetric processing components. The chaotic sequence generator and decryption process use symmetric operations on the generated sequences, simplifying the system architecture while preserving the asymmetric security properties that make non-linear algorithms resistant to cryptanalysis.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS8340295B2High-speed cryptographic system using chaotic sequences

Publication Date: 2012.12.25 HARRIS CORP

AI summary

A cryptographic system (500) that includes a data stream receiving device (502) configured for receiving a modified data stream representing data entries encrypted using a chaotic sequence of digits. The system also includes user processing device (503, 505) configured for receiving user access information specifying an initial value for the chaotic sequence of digits and data field location information associated with selected ones of the data entries. The system further includes a synchronized pair of chaotic sequence generators (300) coupled to the user processing devices configured for generating encryption and decryption sequences based on the initial value and the data field location information. The system additionally includes an encryption device (504) and a decryption device (506) coupled to the chaotic sequence generators and the data stream receiving device, the decrypter configured for generating an output data stream from the modified data stream by applying the decryption sequences.