Patent ID: 11914684
Assignee: DATCHAT, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method for secure access to sensitive documents or files, comprising:
sending, on a sender device having a digital rights management (DRM) Mobile Messaging Application (App), a DRM-restricted document or file to a DRM Cloud Server, said DRM Mobile Messaging App having program instructions executable on a processor configured to effect, by the sender device in encrypted communication with the DRM Cloud Server, processing of DRM permissions on the DRM-restricted document or file and sending to a recipient device identified by a recipient public key;
storing the DRM-restricted document or file on the DRM Cloud server and rendering an HyperText Markup Language (HTML) file of the DRM-restricted document or file on the DRM Cloud Server, the HTML file stored in memory associated with the DRM Cloud Server and having a Uniform Resource Locator (URL) link associated therewith, said DRM Cloud Server having program instructions executable on a processor configured to effect, by the DRM Cloud Server in encrypted communication with the sender device and the recipient device, transmitting and storing of the DRM-restricted document or file, transmitting a DRM violation alert message, and processing of DRM permissions on the DRM-restricted document or file;
adding, to a blockchain operatively connected to the DRM Cloud Server, the URL link to the HTML file of the DRM-restricted document or file on the DRM Cloud Server, wherein adding the URL link comprises steps of generating a hash to validate the URL link, storing the URL link and the hash in a transaction record, and verifying the transaction record;
receiving, on the recipient device having a DRM Mobile Messaging App, an encrypted message for accessing the transaction record containing the URL link to the HTML file of the DRM-restricted document or file, said DRM Mobile Messaging App having program instructions executable on a processor configured to effect, by the recipient device in encrypted communication with a DRM Cloud Server, access of the transaction record, processing of DRM permissions on the DRM-restricted document or file and processing of the recipient public key and recipient private key; and
requesting, by clicking the URL link to the HTML file of the DRM-restricted document or file in the encrypted message in the DRM Mobile Messaging App on the recipient device, the HTML file of the DRM-restricted document or file;
wherein the DRM-restricted document or file is selected from the group consisting of a mortgage application an eBook, a music file, a video file, a stock certificate, a stock order/transaction request, a bond certificate, a bond order/transaction request, a bank transaction, a health or medical record, a property record or title, a smart contract, a country of origin authentication for a supply chain verification, a sensitive government document, a government contract document, a student record, an insurance document, a retail coupon, a rebate, or receipt, and a gift card;
wherein a DRM restriction is selected from the group consisting of: requiring recipient action within a specified time period, forwarding, saving, printing, copying, and capturing;
wherein the DRM Cloud Server maintains control of the URL link to the HTML file of the DRM-restricted document or file; and
wherein if a DRM violation occurs on the recipient device, an alert is generated by the DRM Mobile Messaging App and is sent to the sender device through the DRM Cloud Server, and the sender device is given an option to revoke the URL link and cancel the access to the HTML file of the DRM-restricted document or file.