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Journal of the Korea Institute of Military Science and Technology 2009;12(4):476-482.
A Study on a Shared Key Existence of ECC Based Key Distribution System
Jun Lee, Jong-Bum Park
Korea Air Force Academy
ECC 키분배에서 공유키 존재에 관한 연구
이준, 박종범
공군사관학교 전자전산학과
As a result from Hasse's theorem it is not always possible to share a common key between any two ECC public keys. Even though ECC algorithm is more efficient than any other Encryption's with respect to the encryption strength per bit, ECC ElGamal algorithm can not be used to distribute a common key to ECC PKI owners. Approaching mathematical ways in a practical situation, we suggest possible conditions to share a common key with ECC PKI's. Using computer experiments, we also show that these suggestions are right. In the conditions, we can distribute a common key to proper peoples with ECC ElGamal algorithm.
Key Words: Key Distribution, ECC ElGamal


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