The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 13, 2022

Filed:

Jul. 05, 2016
Applicant:

Cryptomill Inc., Haggatt Hall, BB;

Inventors:

Nandini Jolly, Toronto, CA;

Chris Batty, Toronto, CA;

Canute Serrao, Toronto, CA;

Deepu Filji, Toronto, CA;

David Dai, Toronto, CA;

Assignee:

CRYPTOMILL INC., Haggat Hall, BB;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 51/00 (2022.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01); H04L 9/40 (2022.01);
U.S. Cl.
CPC ...
H04L 51/12 (2013.01); H04L 9/083 (2013.01); H04L 9/321 (2013.01); H04L 63/0428 (2013.01); H04L 63/0435 (2013.01); H04L 63/062 (2013.01); H04L 63/101 (2013.01);
Abstract

A system and method for controlling access to a message after communication. A sender sends an encrypted message to a recipient. The sender also sends an encryption key and the identity of the recipient to a services component. The recipient authenticates its access rights with the services component to obtain the encryption key. The key is held for a period of time for the recipient to access the encrypted message. The recipient may re-authenticate with the services component to again obtain the key to subsequently access the message. The sender may revoke or reinstate the receiver's access to the message by updating the service component.


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