http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
클라이언트 / 서버 모델을 이용한 키 전수조사 시스템 구현
송상헌(Song Sang Heon),박현동(Park Hyun Dong),김충길(Kim Chung Kill),박중길(Park Jung Gil),김영진(Kim Young Jin),류재철(Ryou Jae Cheol) 한국정보처리학회 1999 정보처리학회논문지 Vol.6 No.6
We use an encryption algorithm to protect our sensitive information. But most encryption algorithms are open, so the level of security depends on the length of key. Therefore, there is an attack called "Brute force attack" which checks all possible keys. Nowadays, the technology of hardware and distributed system has progressed. So, many people try to recover the ciphertext without key information using several computers connecting each other via network. In this paper, In order to checks all possible key of conventional algorithms using a various key length that generally encrypts messages, we designed an algorithm which assigned key block to each computer and implemented a client/server system which is able to search a key used in encryption algorithm. Moreover we analyzed the system performance factors including time and cost for finding 40 bits length of key of RC4 algorithm.