Re: [cryptography] validating SSL cert chains & timestamps

2011-10-07 Thread Jeffrey Walton
On Fri, Oct 7, 2011 at 7:59 PM, Kevin W. Wall wrote: > On Fri, Oct 7, 2011 at 5:56 PM, Peter Gutmann > wrote: >> >> travis+ml-rbcryptogra...@subspacefield.org writes: >> >> >If we assume that the lifetime of the cert is there to limit its window >> > of >> >vulnerability to factoring, brute force

Re: [cryptography] validating SSL cert chains & timestamps

2011-10-07 Thread Kevin W. Wall
On Fri, Oct 7, 2011 at 5:56 PM, Peter Gutmann wrote: > travis+ml-rbcryptogra...@subspacefield.org writes: > > >If we assume that the lifetime of the cert is there to limit its window of > >vulnerability to factoring, brute force, and other attacks against > >computational security properties, > >

Re: [cryptography] validating SSL cert chains & timestamps

2011-10-07 Thread Peter Gutmann
travis+ml-rbcryptogra...@subspacefield.org writes: >If we assume that the lifetime of the cert is there to limit its window of >vulnerability to factoring, brute force, and other attacks against >computational security properties, Which only occurs in textbooks. It's probably not necessary to me

Re: [cryptography] validating SSL cert chains & timestamps

2011-10-07 Thread travis+ml-rbcryptography
On Mon, Dec 20, 2010 at 10:46:30AM -0800, travis+ml-rbcryptogra...@subspacefield.org wrote: > libnss, at least on Linux, checks that the signing cert (chain) is valid > at the time of signature - as opposed to present time. (It may check > present time as well - not sure on that). > > This makes

Re: [cryptography] validating SSL cert chains & timestamps

2011-10-07 Thread travis+ml-rbcryptography
On Mon, Dec 20, 2010 at 10:46:30AM -0800, travis+ml-rbcryptogra...@subspacefield.org wrote: > libnss, at least on Linux, checks that the signing cert (chain) is valid > at the time of signature - as opposed to present time. (It may check > present time as well - not sure on that). > > This makes