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:
Mar. 27, 2007
Filed:
Dec. 13, 2002
Moo Seop Kim, Taejon, KR;
Ho Won Kim, Taejon, KR;
Yong Je Choi, Kwangju, KR;
Young Soo Park, Taejon, KR;
Kyo IL Chung, Taejon, KR;
Heui Su Ryu, Taejon, KR;
Moo Seop Kim, Taejon, KR;
Ho Won Kim, Taejon, KR;
Yong Je Choi, Kwangju, KR;
Young Soo Park, Taejon, KR;
Kyo Il Chung, Taejon, KR;
Heui Su Ryu, Taejon, KR;
Abstract
Disclosed is an RSA cryptographic processing apparatus capable of performing the fast operating function. A modular multiplication operation or a modular exponentiation operation, i.e., an RSA cryptographic operation, is selectively performed according to a control signal inputted, the modular operation of the data of 512 to 1024 bits is iteratively performed by use of 32-bit operating unit, and the data of 512 to 1024 bits is operated by use of a 32-bit operating unit, thereby minimizing the size of the register storing the data and reducing the size of the cryptographic apparatus, and which the intermediate value generated at the operation process is stored in the internal register instead of the memory, thereby minimizing the times of access to the memory.