Key Length Correlation
Kevin L Prigge
Kevin.L.Prigge-2 at tc.umn.edu
Tue Aug 20 23:29:15 PDT 1996
Jeff Davis said:
> I've read Blaze and diffie's paper on Semetric Key Length. I'm currious
> how semetric key length correlates to public key cryptography length. Does
> public key length have to be much longer, (assuming the algorithms are strong),
> to provide the same level of security as a shorter semetric key? TIA
> --
It's been calculated that in the case of PGP, to equal the work factor
to brute force the 128 bit IDEA key would require a RSA key > 3000 bits.
Someone probably has a reference.
--
Kevin L. Prigge | "I rarely saw people sitting at
Systems Software Programmer | computers producing real code
Internet Enterprise - OIT | wearing ties." - Philippe Kahn
University of Minnesota | (speech at Software Development '90)
More information about the cypherpunks-legacy
mailing list