@book{2000-silverman
,note={URL: {\tt http://www.rsasecurity.com/rsalabs/bulletins/index.html}. Note: Bulletin 13}
,title={{A cost-based security analysis of symmetric and asymmetric key lengths}}
,booktitle={{A cost-based security analysis of symmetric and asymmetric key lengths}}
,author={Robert D. Silverman}
,publisher={RSA Laboratories}
,address={Bedford, Massachusetts}
,year={2000}
}