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:
Aug. 20, 2019
Filed:
Jan. 18, 2016
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Alexander Maximov, Lund, SE;
Bernard Ben Smeets, Dalby, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (publ), Stockholm, SE;
Abstract
A server receives a client's signing request comprising a hash value of data, the hash value being formed using a time-forwarded one-time signing key that comprises a time-forwarded index The server queues the signing request, pushes the hash value to a signature infrastructure entity at the time-forwarded time, and receives a time stamp in return. A client obtains a time stamp for each piece of a stream of pieces of data by collecting the pieces of data and deriving one-time signing keys of a one-time signing key hash chain, forming a stream of signing requests for the pieces of data by applying the one-time signing keys with time-forwarded indices for the respective piece of data to calculate hash values of the respective pieces of data, and transmitting the stream of signing requests comprising the hash values to a server for deriving time stamps for the pieces of data, respectively.