Fwd: [Help-gnutls] Re: Diffie Hellman size?

Nikos Mavrogiannopoulos nmav at gnutls.org
Tue Apr 15 14:13:47 CEST 2008


On Tue, Apr 15, 2008 at 12:23 PM, Simon Josefsson <simon at josefsson.org> wrote:
 > FYI,
 >
 >  I asked Peter Gutmann about this, who recently posted some mathematical
 >  limits he used in:
 >
 >  http://permalink.gmane.org/gmane.ietf.smime/6175
 >
 >  His response is below.  So there seems to be good reasons why we
 >  shouldn't allow too small DH prime modulus.  Although I'd prefer if this
 >  were a bit better documented.

 We also have this:
 http://www.gnu.org/software/gnutls/manual/html_node/Selecting-cryptographic-key-sizes.html#Selecting-cryptographic-key-sizes

 The values apply to DH parameters as well.

 regards,
 Nikos





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