Re: cipher suites for DTLSv1

2013-02-18 Thread Joel Dice
On Fri, 15 Feb 2013, Joel Dice wrote: On Fri, 15 Feb 2013, Joel Dice wrote: On Thu, 14 Feb 2013, Dr. Stephen Henson wrote: On Thu, Feb 14, 2013, Joel Dice wrote: Although OpenSSL seems to allow CBC-based suites with DTLS, from what I've read a block in a CBC stream can't be properly decode

Re: cipher suites for DTLSv1

2013-02-15 Thread Joel Dice
On Fri, 15 Feb 2013, Joel Dice wrote: On Thu, 14 Feb 2013, Dr. Stephen Henson wrote: On Thu, Feb 14, 2013, Joel Dice wrote: Although OpenSSL seems to allow CBC-based suites with DTLS, from what I've read a block in a CBC stream can't be properly decoded without the prior block being availabl

Re: cipher suites for DTLSv1

2013-02-15 Thread Joel Dice
On Thu, 14 Feb 2013, Dr. Stephen Henson wrote: On Thu, Feb 14, 2013, Joel Dice wrote: Although OpenSSL seems to allow CBC-based suites with DTLS, from what I've read a block in a CBC stream can't be properly decoded without the prior block being available (http://en.wikipedia.org/wiki/Cipher_

Re: cipher suites for DTLSv1

2013-02-14 Thread Dr. Stephen Henson
On Thu, Feb 14, 2013, Joel Dice wrote: > Hi all, > > I've been experimenting with the DTLS support in OpenSSL recently > and discovered that my application was receiving garbage plaintext > when packets were lost or reordered. Closer inspection suggested a > possible cause: I was only enabling c

Re: Cipher Suites

2008-12-28 Thread Victor Duchovni
On Sat, Dec 27, 2008 at 08:42:19PM -0500, Hector Santos wrote: > I'm finally catching up and updating our OPENSSL *.dll distribution > with the latest build (0.9.8i). We had 0.9.8a (2006 time frame) > > The main reason is because we got inquiries regarding AES and SSL3 and > cipher suites. >

Re: Cipher suites

2006-01-29 Thread Chris Clark
> If nothing else, you can implement your own interpretation of "HIGH" > and "MEDIUM", and then for MEDIUM as specified by the user change the > string passed to the cipher setup function to include "MEDIUM+" and > the AES128 algorithm names. Thanks Kyle. After giving this some thought I can see i

Re: Cipher suites

2006-01-28 Thread Chris Clark
Hi Richard, > The docs are outdated. AES is strong. That makes sense. In that case I could let users choose either MEDIUM or "Strong" along with which Cipher group (RC4, 3DES, DES, AES). Of course if they choose Medium and only AES, they would not have any cipher in the result list, so I could

Re: Cipher suites

2006-01-28 Thread Kyle Hamilton
If nothing else, you can implement your own interpretation of "HIGH" and "MEDIUM", and then for MEDIUM as specified by the user change the string passed to the cipher setup function to include "MEDIUM+" and the AES128 algorithm names. -Kyle H On 1/28/06, Chris Clark <[EMAIL PROTECTED]> wrote: > H

Re: Cipher suites

2006-01-28 Thread Richard Salz
The docs are outdated. AES is strong. -- SOA Appliance Group IBM Application Integration Middleware __ OpenSSL Project http://www.openssl.org User Support Mailing Listopenssl-u

Re: Cipher suites

2006-01-28 Thread Chris Clark
Hi Steve, > Also there are grounds for classifying AES in general as "stronger" (for some > value of stronger) due its 128 bit block length compared to the other block > ciphers which have a 64 bit block length. So I won't be able to use the MEDIUM and HIGH settings to let the users choose betwee

Re: Cipher suites

2006-01-28 Thread Dr. Stephen Henson
On Sat, Jan 28, 2006, Chris Clark wrote: > > I was hoping for a simpler solution, so rather then letting users > choose the exact cipher suite names they could simply choose between > AES, 3DES, DES, RC4, and they could also choose if they want MEDIUM > (128 bit) encryption, or HIGH (greater the

Re: Cipher suites

2006-01-28 Thread Chris Clark
Hi Richard, > The openssl "ciphers" command shows the text format of the cipher suites > supported Allow you users to choose from (a subset of) that list, and > set the env var or config param appropriately. Like PATH, it's a > colon-separated list in order of priority. Yes, but that would

Re: Cipher suites

2006-01-28 Thread Richard Salz
The openssl "ciphers" command shows the text format of the cipher suites supported Allow you users to choose from (a subset of) that list, and set the env var or config param appropriately. Like PATH, it's a colon-separated list in order of priority. /r$ -- SOA Appliance Group IB

Re: Cipher suites

2006-01-28 Thread Chris Clark
Hi Richard, > The high medium and low are arbitrary terms, and date back to then the US > had stricter export controls on cryptography. > > Ignore them. But I want my client/server application to allow users to select the level of encryption they wish to use. It is my understanding that 128 bit A

Re: Cipher suites

2006-01-28 Thread Richard Salz
The high medium and low are arbitrary terms, and date back to then the US had stricter export controls on cryptography. Ignore them. /r$ -- SOA Appliance Group IBM Application Integration Middleware __ OpenSSL Project

Re: Cipher Suites explanation

2003-08-14 Thread Ashutosh Jaiswal
, 2003 9:19 PM Subject: Re: Cipher Suites explanation Neil Humphreys wrote: My app is a listening server with 2 ports. The less secure one is for performance, when it doesn't matter if someone sees the data being sent, so it is not worth encrypting/decry

Re: Cipher Suites explanation

2003-08-14 Thread Ashutosh Jaiswal
I changed the subject line so that it makes more sense! Neil Humphreys wrote: Hi all, I have an app that requires 2 types of secure communications: -one fully secured channel with encrypted data -one fully secured channel, *except* that the data itself is not secret, and d

Re: Cipher Suites explanation

2003-08-14 Thread Neil Humphreys
: Ashutosh Jaiswal To: [EMAIL PROTECTED] Sent: Wednesday, August 13, 2003 9:19 PM Subject: Re: Cipher Suites explanation Neil Humphreys wrote: My app is a listening server with 2 ports. The less secure one is for performance, when it doesn't matter if someone

Re: Cipher suites

2001-08-14 Thread Eric Rescorla
Aslam <[EMAIL PROTECTED]> writes: > Hi.. > > man SSL_CTX_set_cipher_list Yeah, read the man page. Check out the documents on www.openssl.org > but what should be the string format for the last parameter of above > function call.. This is described in the ciphers man page. -Ekr ___

RE: Cipher suites

2001-08-14 Thread Aslam
Hi.. man SSL_CTX_set_cipher_list but what should be the string format for the last parameter of above function call.. Thanks Aslam -Original Message- From: Lutz Jaenicke [mailto:[EMAIL PROTECTED]] Sent: Tuesday, August 14, 2001 3:27 PM To: '[EMAIL PROTECTED]' Subject:

Re: Cipher suites

2001-08-14 Thread Lutz Jaenicke
On Tue, Aug 14, 2001 at 02:09:09PM -0400, Aslam wrote: > How can I set or add specific TLS cipher suite in SSL_CTX. Cause what I > found is in get_client_hello() there is some default sting for cipher suite > and acoordingly all the default cipher suites r added. Isn't there any API > which takes