Improvements in communication security
CA 2329931 A1 · Owner: Abdulkader, Barbir · Inventors: Abdulkader, Barbir
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides an improved mechanism to guard against message sequencing, threats. It can be used in any system which makes use of a transform which uses a, state machine such as encryption/decryption and compression/decompression systems, and where the transform and the inverse transform use the same state machines. The invention is implemented as a matching pair of applications at both, ends of a transmission link. The transmitting end encodes the current value of a, particular state using a one-way hash function and adds this value as a field in the, transmitted packet. At the receiving end the packet is passed to the decoding, algorithm which derives the current value of …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 29, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.