Re: new cipher in OpenSSL, need to rebuild Postfix?

2010-04-16 Thread Victor Duchovni
On Thu, Mar 25, 2010 at 06:16:22PM +0100, Gregory BELLIER wrote: However, I didn't ask if new code was necessary in Postfix so it can be aware of a new cipher. As you said, it's automatical. I asked if, in your opinion, it would be necessary to build postfix (as is) against a new OpenSSL.

Re: new cipher in OpenSSL, need to rebuild Postfix?

2010-03-25 Thread Gregory BELLIER
Victor Duchovni a écrit : On Wed, Mar 24, 2010 at 11:09:44AM +0100, Gregory BELLIER wrote: if I copy an existing cipher in OpenSSL and rename it, it will act as if it is a new cipher. On the wire SSL ciphers have numeric ids, not names. If you rename a cipher, it just changes how

Re: new cipher in OpenSSL, need to rebuild Postfix?

2010-03-25 Thread Gregory BELLIER
mouss a écrit : $ ldd /usr/local/libexec/postfix/smtpd /usr/local/libexec/postfix/smtpd: ... libssl.so.7 = /usr/local/lib/libssl.so.7 (0x2810a000) libcrypto.so.7 = /usr/local/lib/libcrypto.so.7 (0x2815) ... if you rebuild openssl but provide the same ABI, then it's ok. If

Re: new cipher in OpenSSL, need to rebuild Postfix?

2010-03-25 Thread Wietse Venema
Gregory BELLIER: At this point, you really need to step back, take a deep breath, and use OpenSSL as-is. As I said, it's to learn. If I do nothing then it's pointless. What I ask is not your point on if it's relevant to do it or not because we all know it's not. With intense

Re: new cipher in OpenSSL, need to rebuild Postfix?

2010-03-25 Thread Gregory BELLIER
Victor Duchovni a e'crit: On Thu, Mar 25, 2010 at 10:31:40AM +0100, Gregory BELLIER wrote: At this point, you really need to step back, take a deep breath, and use OpenSSL as-is. As I said, it's to learn. If I do nothing then it's pointless. No need to change the OpenSSL

new cipher in OpenSSL, need to rebuild Postfix?

2010-03-24 Thread Gregory BELLIER
Hi. if I copy an existing cipher in OpenSSL and rename it, it will act as if it is a new cipher. Would I need to build postfix against this new OpenSSL to be able to use the new cipher? I think it's not required but I have a doubt. How does the TLS negociation work ? I guess it is done by

Re: new cipher in OpenSSL, need to rebuild Postfix?

2010-03-24 Thread mouss
Gregory BELLIER a écrit : Hi. if I copy an existing cipher in OpenSSL and rename it, it will act as if it is a new cipher. Would I need to build postfix against this new OpenSSL to be able to use the new cipher? I think it's not required but I have a doubt. How does the TLS negociation

Re: new cipher in OpenSSL, need to rebuild Postfix?

2010-03-24 Thread Victor Duchovni
On Wed, Mar 24, 2010 at 11:09:44AM +0100, Gregory BELLIER wrote: if I copy an existing cipher in OpenSSL and rename it, it will act as if it is a new cipher. On the wire SSL ciphers have numeric ids, not names. If you rename a cipher, it just changes how it is displayed in logs. Renaming