전문가 초정강연을 아래와 같이 개최하오니 정보보호대학원 학생들은 반드시 참석하시기 바랍니다.
- 아 래 -
1. 일시 : 2011년 8월 25일 오전 11시
2. 장소 : 미래융합관 101호
3. 강연자 : Moti Yung ( Google and Columbia University)
4. 주제 : "Extreme" Threshold Cryptosystems.
5. 강의내용 :
Designing threshold that allow t out of n secret key shares to operate (to allow better security and availability) is a field that is over 20 years old.
Designing such systems without relaxation has been open (at least 10 years);
these systems have:
-Non Interactive (shareholders just send one message per decryption)
-Adaptively secure (adversary corrupts users during operation)
-Optimal resilience (need only majority)
-Robust (recover from faults)
-Secret share size independent of n and t
In this work we solve this problem.