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. 08, 2013
Filed:
Dec. 20, 2007
Methods, apparatuses, and computer program products for authentication of fragments using hash trees
John Solis, Irvine, CA (US);
Kari Timo Juhani Kostiainen, Helsinki, FI;
Philip Ginzboorg, Espoo, FI;
Nadarajah Asokan, Espoo, FI;
Joerg Ott, Espoo, FI;
Cheng Luo, Espoo, FI;
John Solis, Irvine, CA (US);
Kari Timo Juhani Kostiainen, Helsinki, FI;
Philip Ginzboorg, Espoo, FI;
Nadarajah Asokan, Espoo, FI;
Joerg Ott, Espoo, FI;
Cheng Luo, Espoo, FI;
Nokia Corporation, Espoo, FI;
Abstract
An apparatus for authentication of fragments using hash trees may include a processor. The processor may be configured to provide one or more data fragments and a hash tree representing the one or more fragments, send at least one first fragment accompanied by any nodes of the hash tree necessary to authenticate the one or more first sent fragments, and send one or more subsequent fragments accompanied by only some, but not all, of the nodes of the hash tree necessary to authenticate the one or more subsequent fragments with the other nodes that are not sent but are necessary for authentication having been previously sent in conjunction with a prior fragment.