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:
Feb. 11, 2025
Filed:
Sep. 16, 2022
Lenovo (Singapore) Pte. Ltd., Singapore, SG;
Lenovo (Singapore) Pte. Ltd., Singapore, SG;
Abstract
A process for transmitting a file from a sender device to a receiver device includes generating a random symmetric session key for the sender device, and randomly selecting a private ephemeral key for the sender device. The private ephemeral key is associated with a corresponding first public key. A public ephemeral key is randomly selected for the receiving device. The public ephemeral key is associated with a corresponding first private key. A random value is generated, an encrypted session key is calculated, and the file is encrypted using symmetric encryption. The sender device includes a first public X509 certificate comprising a second public key and a corresponding second private key that is signed by a service provider, and the receiver device includes a second public X509 certificate comprising a third public key and a corresponding third private key.