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.
Patent No.:
Date of Patent:
Jan. 23, 2024
Filed:
Dec. 06, 2018
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Dhruvin Patel, Aachen, DE;
Thomas Weidenfeller, Aachen, DE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A technique for controlling cryptographic document protection and verification is presented. In one implementation, a device is associated with a device identifier and with a cryptographic key is configured to obtain an electronically processable document representation (EPDR) of content of a document that is to be protected and to apply the cryptographic key to the EPDR to obtain a cryptographically processed document representation (CPDR). The device is further configured to transmit the device identifier and a verification parameter comprising at least one of the EPDR and the CPDR towards a transaction server that is configured to log the device identifier and the verification parameter in a tamper-proof manner. The device is also configured to receive a transaction identifier associated with the device identifier and the verification parameter from the transaction server, and trigger printing of the transaction identifier and the CPDR on a physical document that corresponds to the EPDR.