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:
May. 25, 2010
Filed:
Feb. 01, 2001
Olli Immonen, Helsinki, FI;
Olli Immonen, Helsinki, FI;
Nokia Corporation, Espoo, FI;
Abstract
The invention relates to a method for checking the integrity of a message transmitted between a sender in a transmitting end and a recipient in a receiving end, in which method an authentication value is calculated for the first message and a random string is generated. According to a method in the transmitting end an authentication value is generated from a message to be sent and the random string. A check code is formed from the authentication value and the random sting. The first message is transferred from a sender to a recipient through a first channel, and the check code is transferred through a second secure channel. In the receiving end a message is received through a first channel and the check code is received through a second secure channel. In the receiving end an authentication check formed at least based of the received message. The integrity of the received message is checked by comparing the predetermined check values in the receiving end.