@article{1978-rivest ,note={URL: {\tt http://cr.yp.to/\allowbreak bib/\allowbreak entries.html\#\allowbreak 1978/\allowbreak rivest}} ,author={Ronald L. Rivest and Adi Shamir and Leonard M. Adleman} ,ISSN={0001--0782} ,journal={Communications of the ACM} ,pages={120--126} ,title={{A method for obtaining digital signatures and public-key cryptosystems}} ,volume={21} ,year={1978} }