@article{2001-lenstra
,note={URL: {\tt http://www.cryptosavvy.com/Joc.ps}. Note: to appear}
,author={Arjen K. Lenstra and Eric R. Verheul}
,ISSN={0933--2790}
,journal={Journal of Cryptology}
,title={{Selecting cryptographic key sizes}}
,year={2001}
}