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. 30, 2011
Filed:
May. 13, 2008
Sun Kang, Daejeon, KR;
Soo Hyeon Kim, Daejeon, KR;
Hyo Won Kim, Gyeonggi-do, KR;
Tae Joo Chang, Daejeon, KR;
Sun Kang, Daejeon, KR;
Soo Hyeon Kim, Daejeon, KR;
Hyo Won Kim, Gyeonggi-do, KR;
Tae Joo Chang, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided is a cryptographic device performing encryption or decryption on input data, and more particularly, a cryptographic device having a session memory bus for communicating with a session memory. The cryptographic device includes: an external session memory for storing cryptographic information on each session; a cryptographic processor for encrypting or decrypting input data using the cryptographic information; an external session memory bus connected to the external session memory and the cryptographic processor; and a Central Processing Unit (CPU) for transferring and receiving data to and from the external session memory via the cryptographic processor. The separate session memory buses allow the cryptographic processor to access a session memory without being disturbed by another device, thereby improving the entire performance of the cryptographic device.