earticle

영어

Conference keys are secret keys used by a group of users commonly and with which they
can encipher (or decipher) messages such that communications are secure. Based on the
Diffie and Hellman’s PKDS, a conference key distribution scheme is presented in this paper.
A sealed lock is used to lock the conference key in such a way that only the private keys of the
invited members are matched. Then the sealed lock is thus made public or distributed to all
the users, only legitimate users can disclose it and obtain the conference key. In our scheme,
the construction of a sealed lock is simple and the revelation of a conference key is efficient