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http://dx.doi.org/10.13089/JKIISC.2002.12.6.71

Hybrid Cryptosystem providing Implicit Authentication for sender  

Oh, Soo-Hyun (성균관대학교 전기전자 및 컴퓨터공학부 정보통신보호연구실)
Kwak, Jin (성균관대학교 전기전자 및 컴퓨터공학부 정보통신보호연구실)
Won, Dong-Ho (성균관대학교 정보통신공학부)
Publication Information
Journal of the Korea Institute of Information Security & Cryptology / v.12, no.6, 2002 , pp. 71-80 More about this Journal
Abstract
To provide the confidentiality of messages transmitted over the network, the use of cryptographic system is increasing gradually and the hybrid cryptosystem, which combines the advantages of the symmetric cryptosystem and the public key cryptosystem is widely used. In this paper, we proposes a new hybrid cryptosystem capable of providing implicit authentication for the sender of the ciphertext by means of the 1-pass key distribution protocol that offers implicit key authentication, hash function and symmetric cryptosystem. Also, we describe some examples such as the Diffie-Hellman based system and the Nyberg-Ruppel based system. The proposed hybrid cryptosystem is an efficient more than general public key cryptosystems in the aspect of computation work and provides implicit authentication for the sender without additional increase of the communication overhead.
Keywords
Hybrid cryptosystem; Implicit authentication; Key distribution protocol; Diffie-Hellman key agreement protocol; Nyberg-Rueppel key agreement protocol;
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