symm/asymm key length equivalence

John Kane jkane89@softhome.net
Fri Jun 29 22:53:02 2001


Neeraj Singhal <nsinghal@india-today.com> asked:

 >how can I get more information about various key lengths
 >like 56 bit , 1024 bits and their respective strength.

http://www.geocities.com/tnotary/spckeysize.html
has a comparison; the equivalence ratios between other
symmetric keys (idea,cast5,rijndael) and asymmetric
public keys (DH/ElGamal, RSA) are similar.