Variable-Length Decoding with Transition Words for Secure Data Streams
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Solution Overview
Problem
Conventional data communication systems are vulnerable to hackers who exploit backdoors in local computers or servers to intercept encrypted or decrypted data, necessitating more effective user authentication and access control technologies.
Innovation Solution
A method involving a computer system that encrypts or decrypts data streams based on variable word lengths and random value insertion to enhance security, using variable-length encoding and decoding techniques with alternating modes and lookup tables to create dynamic password-like authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional encryption algorithms are used to encrypt data locally at computers or servers, then data confidentiality is improved, but security is worsened because hackers can exploit backdoors in local computers or servers to intercept data before encryption or after decryption
Solution Approach 1:
The patent introduces a trusted third-party device as an intermediary that performs encryption and decryption operations. This mediator holds the decryption keys and processes encrypted data streams, preventing hackers from accessing plaintext data at local computers or servers. The intermediary architecture ensures that sensitive operations occur in a secure environment isolated from potential backdoors.
Solution Approach 2:
The patent moves the encryption/decryption process from the traditional local computer/server dimension to a separate trusted device dimension. By relocating key management and cryptographic operations to a dedicated secure device, the system creates a new operational layer that is isolated from network-vulnerable local systems, thereby addressing security concerns about backdoors.
2Adaptability or versatility
If data is transmitted over external networks like the Internet, then connectivity and business communication are improved, but security is worsened due to exposure to hackers and data interception
Solution Approach 1:
The patent applies preliminary encryption actions to data streams before they are transmitted over external networks. The trusted device encrypts data using secure algorithms before transmission, and decrypts incoming encrypted streams before processing. This preliminary security measure ensures that data remains protected throughout its journey across vulnerable network infrastructure.
Solution Approach 2:
The patent employs variable-length encoding and dynamic parameter changes in the encryption process. By continuously varying encryption parameters and using adaptive cryptographic transformations, the system makes intercepted data appear random and unreadable, thereby maintaining security while allowing flexible data transmission over networks.
3Reliability
If more sophisticated encryption and access control methods are implemented, then security is improved, but system complexity increases
Solution Approach 1:
The patent segments the cryptographic system into distinct functional modules within the trusted device: key management module, encryption/decryption processing module, and variable-length encoding module. This segmentation allows each component to be optimized independently and simplifies implementation while maintaining high security through specialized processing for each function.
Data Source
AI summary
A method for variable length decoding, the method including: receiving, in a default word length mode, at least one first data word having a default first word length; combining the received at least one first data word as a first portion of data; receiving, after the at least one first data word, a transition word indicative of transitioning to a variable word length mode; receiving, after the transition word, a first word length word indicative of a second word length; receiving, after the first word length word, at least one second data word having the second word length; and combining the received at least one second data word as a second portion of the data.