@article{1985-elgamal-sigs
,note={Note: see also older version $0}
,author={Taher ElGamal}
,ISSN={0018--9448}
,journal={IEEE Transactions on Information Theory}
,MR={86j:94045}
,pages={469--472}
,title={{A public key cryptosystem and a signature scheme based on discrete logarithms}}
,volume={31}
,year={1985}
}