RE: Can I have SSL for peer authentication only? (and not for data encryption)

2006-02-07 Thread Ambarish Mitra
cipher:[EDH-RSA-DES-CBC3-SHA],version:[TLSv1/SSLv3] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Urjit Gokhale Sent: Wednesday, February 08, 2006 11:07 AM To: openssl-users@openssl.org Subject: Re: Can I have SSL for peer authentication only? (and not for

Re: Can I have SSL for peer authentication only? (and not for data encryption)

2006-02-07 Thread Urjit Gokhale
all to SSL_CTX_set_cipher_list() before I call SSL_new ? If you want any more information in order to answer the above questions, please do ask me. Thanks, ~ Urjit - Original Message - From: "Kyle Hamilton" <[EMAIL PROTECTED]> To: Sent: Thursday, February 02, 2006 9:37 PM

Re: Can I have SSL for peer authentication only? (and not for data encryption)

2006-02-02 Thread Alain Damiral
Katie Lucas wrote: On Thu, Feb 02, 2006 at 05:09:42PM +0100, Alain Damiral wrote: But with no cryptographic digest you have no guarantee that the data you receive provides from the person who showed his certificate. I think it would be vulnerable to a man in the middle type of attack.

Re: Can I have SSL for peer authentication only? (and not for data encryption)

2006-02-02 Thread Katie Lucas
On Thu, Feb 02, 2006 at 05:09:42PM +0100, Alain Damiral wrote: > > >>1) Is it possible to use SSL only for the sake of peer > >>authentication + validation and transfer un-encrypted data over this > >>channel ? > >> > >> > > > >How about; you open the sockets using your socket level > >interfac

Re: Can I have SSL for peer authentication only? (and not for data encryption)

2006-02-02 Thread Alain Damiral
1) Is it possible to use SSL only for the sake of peer authentication + validation and transfer un-encrypted data over this channel ? How about; you open the sockets using your socket level interface. Then you attach SSL constructs to both ends, but with the "don't close this option". Th

Re: Can I have SSL for peer authentication only? (and not for data encryption)

2006-02-02 Thread Kyle Hamilton
On 2/2/06, Katie Lucas <[EMAIL PROTECTED]> wrote: > On Tue, Jan 24, 2006 at 06:44:30PM +0530, Urjit Gokhale wrote: > > Hi all, > > > > > I am planning to use SSL for the communication between my client and > >server. The idea is to use SSL *mainly* for peer authentication and > >validation (Both se

Re: Can I have SSL for peer authentication only? (and not for data encryption)

2006-02-02 Thread Katie Lucas
On Tue, Jan 24, 2006 at 06:44:30PM +0530, Urjit Gokhale wrote: > Hi all, > > I am planning to use SSL for the communication between my client and >server. The idea is to use SSL *mainly* for peer authentication and >validation (Both server and client authentication by means of >certificates). Reg

Re: Can I have SSL for peer authentication only? (and not for data encryption)

2006-01-25 Thread Alain Damiral
Kyle Hamilton wrote: In France (unless the laws have changed) it's illegal to use cryptography to encrypt data payload, but not illegal to use cryptography as a means of identification. This is, if I understand Netscape's and the IETF's motives correctly, the only reason why the NULL cipher su

Re: Can I have SSL for peer authentication only? (and not for data encryption)

2006-01-25 Thread Kyle Hamilton
Brief primer on SSL/TLS: 1) Server has a public and private key pair. Optionally, the client has a public and private key pair. Any public key is authenticated by a 'certificate', which is a set of data attached to the public key, the entirety of which has a hash encrypted by the private key of

Re: Can I have SSL for peer authentication only? (and not for data encryption)

2006-01-24 Thread Richard Koenning
Bernhard Froehlich wrote: Maybe this would be possible using the NULL cipher combined with DH authentication... (The official NULL cipher suites use RSA authentication.) The answer to the first question of the OP is yes, use a NULL cipher suite. But if your problem is only performance I don

Re: Can I have SSL for peer authentication only? (and not for data encryption)

2006-01-24 Thread Bernhard Froehlich
Urjit Gokhale wrote: Hi all, I am planning to use SSL for the communication between my client and server. The idea is to use SSL *mainly* for peer authentication and validation (Both server and client authentication by means of certificates). Regarding the data encryption, I would like to h

Re: Can I have SSL for peer authentication only? (and not for data encryption)

2006-01-24 Thread Alain Damiral
Hi and welcome, I haven't thought hardly about what you're trying to do but my first intuition tells me that encryption also has some part to play in authentication that you're missing. My knowledge of SSL is limited but I think it is safe to say that private/public key (assymetric) encryption