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:
Jul. 08, 2014
Filed:
Dec. 21, 2011
Yong-je Choi, Daejeon, KR;
Doo Ho Choi, Daejeon, KR;
Taesung Kim, Daejeon, KR;
Kyunghee OH, Daejeon, KR;
You Sung Kang, Daejeon, KR;
Ju Han Kim, Daejeon, KR;
Jeong Nyeo Kim, Daejeon, KR;
Hyun Sook Cho, Daejeon, KR;
Yong-Je Choi, Daejeon, KR;
Doo Ho Choi, Daejeon, KR;
Taesung Kim, Daejeon, KR;
Kyunghee Oh, Daejeon, KR;
You Sung Kang, Daejeon, KR;
Ju Han Kim, Daejeon, KR;
Jeong Nyeo Kim, Daejeon, KR;
Hyun sook Cho, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A masking addition operation apparatus for prevention of a side channel attack, includes a random value generation unit generating a first random value for a first input, second random value for a second input, and a summation random value. The masking addition operation apparatus includes an operation part performing an operation on the first and second random values, a previous carry input, and first and second masked random values generated based on the first and second random values. The masking addition operation apparatus includes a carry generator generating a carry input using a result of the operation part; and a summation bit generator generating a summation bit using the summation random value, the first and second random values, the previous carry input and the first and second masked random values.