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1. AU2001089503 - The conversion method of unlimited uncycling key stream of clear text, encryptedmessage extracting mechanism

Office
Australia
Application Number 89503/01
Application Date 28.05.2001
Publication Number 2001089503
Publication Date 28.03.2002
Publication Kind A
IPC
H04L 9/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
CPC
H04L 9/0656
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
06the encryption apparatus using shift registers or memories for block-wise ; or stream; coding, e.g. DES systems ; or RC4; Hash functions; Pseudorandom sequence generators
065Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
0656Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
Applicants Ci, Mengfu
Priority Data 00109250.2 19.06.2000 CN
Title
(EN) The conversion method of unlimited uncycling key stream of clear text, encryptedmessage extracting mechanism
Abstract
(EN) The invention discloses a method and mechanism of random dynamic variation of a key sequence. It is comprised of clear text or encrypted message count extracting V1, comparatively sieving V2, candidate buffer areas and key sequence converting V4, key sequence buffer areas V5, the candidate function sequence fk in V6, and the feature modulation data $g(l) in V7. The invention realizes the breakthrough of the limited cycling , completes or approaches the encrytion effect of one key per word.
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