Re: SHA1 considered a PITA

2009-01-26 Thread Julien R Pierre - Sun Microsystems
Ian, Ian G wrote: On 26/1/09 19:43, Jean-Marc Desperrier wrote: About Apache, it seems the potential problem is more with OpenSSL, it will not enable SHA-2 by default if you only enable the default algorithms for SSL. But I think most people choose instead to initialize all the algorithms Open

Re: SHA1 considered a PITA

2009-01-26 Thread Eddy Nigg
On 01/26/2009 08:43 PM, Jean-Marc Desperrier: It should work with Windows Server 2003 (not with 2K) and Windows XP clients **with SP3**. The problem we were seeing is, that IIS (or better the certificate viewer - MMC certificate snap-in) complains about invalid signature or certificate corrup

Re: SHA1 considered a PITA

2009-01-26 Thread Ian G
On 26/1/09 19:43, Jean-Marc Desperrier wrote: About Apache, it seems the potential problem is more with OpenSSL, it will not enable SHA-2 by default if you only enable the default algorithms for SSL. But I think most people choose instead to initialize all the algorithms OpenSSL knows about, and

Re: SHA1 considered a PITA

2009-01-26 Thread Jean-Marc Desperrier
Eddy Nigg wrote: On 01/26/2009 04:12 PM, Ian G: No, I can't tell you exactly, I just read s**t on the net :) Because the only show-stopper I found was with Windows 2003 (most likely 2K as well) and Windows XP clients. At least with W2K3 it's a real problem. So far I couldn't see any problem w

Re: SHA1 considered a PITA

2009-01-26 Thread Eddy Nigg
On 01/26/2009 04:12 PM, Ian G: No, I can't tell you exactly, I just read s**t on the net :) Because the only show-stopper I found was with Windows 2003 (most likely 2K as well) and Windows XP clients. At least with W2K3 it's a real problem. So far I couldn't see any problem with Apache + Fir

Re: SHA1 considered a PITA

2009-01-26 Thread Ian G
On 26/1/09 14:03, Eddy Nigg wrote: On 01/26/2009 01:57 PM, Ian G: More on that "SHA1 disaster brewing" thing. My today understanding (wait until tomorrow before challenging ...) is it could be as bad as this: * servers need to support TLS1.2 before the old hash family is gone. * clients need to

Re: SHA1 considered a PITA

2009-01-26 Thread Eddy Nigg
On 01/26/2009 01:57 PM, Ian G: More on that "SHA1 disaster brewing" thing. My today understanding (wait until tomorrow before challenging ...) is it could be as bad as this: * servers need to support TLS1.2 before the old hash family is gone. * clients need to support old hashes until the serve

SHA1 considered a PITA

2009-01-26 Thread Ian G
More on that "SHA1 disaster brewing" thing. My today understanding (wait until tomorrow before challenging ...) is it could be as bad as this: * servers need to support TLS1.2 before the old hash family is gone. * clients need to support old hashes until the servers stop TLS1.1 * we have