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回复：回复：回复： Does H323plus support H.235
by Bian 03 Dec '07

03 Dec '07

See 8.6/H.235.6 The sharedSecret field within the H235Key structure uses the following fields: • algorithmOID: set to "X", "X1" for the 56-bit RC2-compatible, set to "Y", "Y1" for 56-bit DES or set to "Z", "Z1" for 168-bit Triple-DES or set to "Z3" for 128-bit AES. NOTE 1 – The session key encryption algorithm is the same as the negotiated media encryption algorithm. The shared secret is not used directly to encrypt the key exchange material to generate the cipher for media encryption, but used to enctypt the session key. Session key is then used to encrypt media. So, I think we can connect PVX or codian using AES through a standard way. However, Need some work to test this thought. Bian ----- 原始邮件 ---- 发件人： Simon Horne <s.horne(a)packetizer.com> 收件人： Bian <bianxg(a)yahoo.cn>; H323plus <h323plus(a)lists.packetizer.com> 已发送： 2007/12/1(周六), 下午8:16:20 主题： RE: [h323plus] 回复：回复： Does H323plus support H.235 The shared secret is used to encrypt the key exchange material to generate the cipher for media encryption. If the shared secret was public knowledge then anyone can intercept the key exchange and generate a key to decrypt the media. So unless Polycom or Codian wish to share that proprietry secret there is no way to connect via AES. Simon > -----Original Message----- > From: h323plus-bounces(a)lists.packetizer.com > [mailto:h323plus-bounces@lists.packetizer.com]On Behalf Of Bian > Sent: Saturday, December 01, 2007 11:19 AM > To: H323plus > Subject: [h323plus] 回复：回复： Does H323plus support H.235 > > > Simon > > I think PVX's key exchange mechanism is in a standard way. PVX > and Codian MCU can connect using AES. > > But I don't know how the shared secret is used to produce the session key. > > > Bian > > > -----Original Message----- > >Bian > > >No PacPhone AES uses a different key exchange mechanism to PVX. > Polycom uses > >a proprietry method. They should still connect unencrypted. > > >Simon > > > -----Original Message----- > > From: Bian [mailto:bianxg@yahoo.cn] > > Sent: Wednesday, November 28, 2007 12:35 PM > > To: Simon Horne > > Subject: 回复： [h323plus] Does H323plus support H.235 > > > > > > Simon > > > > I test PccPhone with PVX, but the AES is not opened. Does > > PacPhone can interoperate with PVX using AES? > > > > > > Bian > > > > > ___________________________________________________________ > 进入雅虎游戏嘉年华，赢取液晶显示器！ > http://cn.mail.yahoo.com/promo/carnival07/ ___________________________________________________________ 进入雅虎游戏嘉年华，赢取液晶显示器！ http://cn.mail.yahoo.com/promo/carnival07/

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Errors while compliling PTLIB 1.12.0
by JF NP 03 Dec '07

03 Dec '07

Hi, When I try to compile PTLib (1.12.0) on a computer running Windows XP using VS 2003, I get the following errors (see below, after system configuration), can anybody help me?? This is what configure reports: Located Direct Sound Support at c:\archivos de programa\microsoft directx sdk (june 2007)\ Located DNS Resolver at c:\archivos de programa\microsoft visual studio .net 2003\vc7\platformsdk\ Located IPv6 Support at c:\archivos de programa\microsoft visual studio .net 2003\vc7\platformsdk\include\ Located QoS Support at c:\archivos de programa\microsoft visual studio .net 2003\vc7\platformsdk\include\ Located ODBC support at c:\archivos de programa\microsoft visual studio .net 2003\vc7\platformsdk\include\ Searching D:\ Located Open SSL at d:\desarrollo\veediaplatform\externaldependencies\openssl-0.9.7e\ Located Open SSL AES at d:\desarrollo\veediaplatform\externaldependencies\openssl-0.9.7e\ Features: Version enabled Byte Order enabled Semaphore Support enabled Plugin Support enabled DNS Resolver enabled Cyrus SASL DISABLED Open LDAP DISABLED due to absence of feature sasl Open SSL enabled Open SSL AES enabled Windows Open SSL DISABLED due to presence of feature openssl Windows Open SSL AES DISABLED due to absence of feature winssl Expat XML DISABLED Windows Expat XML DISABLED VXML DISABLED due to absence of feature expat|winexpat Jabber DISABLED due to absence of feature expat|winexpat XMLRPC DISABLED due to absence of feature expat|winexpat SOAP DISABLED due to absence of feature expat|winexpat Speech API DISABLED IPv6 Support enabled QoS Support enabled Simple DirectMedia Layer DISABLED Video Support enabled ASN Support enabled STUN Support enabled pipe channel Support enabled DTMF encoding/decoding support enabled WAV file support enabled SOCKS protocol support enabled FTP protocol support enabled SNMP protocol support enabled Telnet protocol support enabled remote connection support enabled Serial Support enabled POP3/SMTP Support enabled HTTP Support enabled HTTP service Support enabled Config file protocol support enabled Socket aggregation support enabled Video file support enabled Sound support enabled Direct Sound Support enabled ODBC support enabled Errors: ..\..\..\include\ptlib\pprocess.h(819) : error C2143: syntax error : missing ';' before '<' ..\..\..\include\ptlib\plugin.h(81) : error C2516: 'PFactory' : is not a legal base class ..\..\..\include\ptlib\pprocess.h(819) : see declaration of 'PFactory' ..\..\..\include\ptlib\plugin.h(115) : see reference to class template instantiation 'PDevicePluginFactory<_Abstract_T,_Key_T>' being compiled ..\..\..\include\ptlib\plugin.h(81) : error C2143: syntax error : missing ',' before '<' ..\..\..\include\ptlib\plugin.h(84) : error C2516: 'PFactory' : is not a legal base class ..\..\..\include\ptlib\pprocess.h(819) : see declaration of 'PFactory' ..\..\..\include\ptlib\plugin.h(84) : see reference to class template instantiation 'PDevicePluginFactory<_Abstract_T,_Key_T>::Worker' being compiled ..\..\..\include\ptlib\plugin.h(84) : error C2143: syntax error : missing ',' before '<' ..\..\..\include\ptlib\plugin.h(84) : error C2039: 'WorkerBase' : is not a member of 'operator``global namespace''' ..\..\..\include\ptlib\pfactory.h(475) : error C2904: 'PFactory' : name already used for a template in the current scope ..\..\..\include\ptlib\pprocess.h(819) : see declaration of 'PFactory' ..\..\..\include\ptlib\pfactory.h(475) : error C2920: redefinition : 'PFactory' : template class has already been declared as 'typedef int PFactory' ..\..\..\include\ptlib\pfactory.h(475) : see declaration of 'PFactory' ..\..\..\include\ptlib\pprocess.h(819) : see declaration of 'PFactory' ______________________________________________ ¿Chef por primera vez? Sé un mejor Cocinillas. http://es.answers.yahoo.com/info/welcome

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PTLib change to ANSI bool
by Craig Southeren 03 Dec '07

03 Dec '07

To all, As previously announced, the trunk revision of PTLib has been changed to use ANSI bool instead of int BOOL. A summary of the changes, and the reasons and ramifications of them, can found in the Opal wiki at: http://www.opalvoip.org/wiki/index.php?n=Main.BoolChanges Craig ----------------------------------------------------------------------- Craig Southeren Post Increment – VoIP Consulting and Software craigs(a)postincrement.com.au www.postincrement.com.au Phone: +61 243654666 ICQ: #86852844 Fax: +61 243656905 MSN: craig_southeren(a)hotmail.com Mobile: +61 417231046 Jabber: craigs(a)jabber.org "Science is the poetry of reality." Richard Dawkins

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回复：回复： Does H323plus support H.235
by Bian 01 Dec '07

01 Dec '07

Simon I think PVX's key exchange mechanism is in a standard way. PVX and Codian MCU can connect using AES. But I don't know how the shared secret is used to produce the session key. Bian > -----Original Message----- >Bian >No PacPhone AES uses a different key exchange mechanism to PVX. Polycom uses >a proprietry method. They should still connect unencrypted. >Simon > -----Original Message----- > From: Bian [mailto:bianxg@yahoo.cn] > Sent: Wednesday, November 28, 2007 12:35 PM > To: Simon Horne > Subject: 回复： [h323plus] Does H323plus support H.235 > > > Simon > > I test PccPhone with PVX, but the AES is not opened. Does > PacPhone can interoperate with PVX using AES? > > > Bian > ___________________________________________________________ 进入雅虎游戏嘉年华，赢取液晶显示器！ http://cn.mail.yahoo.com/promo/carnival07/

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Does H323plus support H.235
by Bian 27 Nov '07

27 Nov '07

ToAll, Does anyone have experience implementing H.235 AES using h.323plus? Where can I begin? Regrads, Bian ___________________________________________________________ @yahoo.cn 新域名、无限量，快来抢注！ http://mail.yahoo.cn/

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Re: [h323plus] Migration to ANSI bool in PTLib
by Craig Southeren 27 Nov '07

27 Nov '07

Simon Horne wrote: > To All > > I had requested slightly more time but alas :( > > h323plus (in conjunction with GnuGk) will migrate over the next week or so. > If you are using the PTLIB TRUNK please compile for backward compatibility > until Jan and I have completed h323plus and GnuGk translation. To assist, we'll try not to do much to PTLib until you are migrated. This means the development snapshot will be good for you to use. > Our apologies for not be able to co-ordinate this a little better. Thanks for your efforts - it is much appreciated :) Craig ----------------------------------------------------------------------- Craig Southeren Post Increment – VoIP Consulting and Software craigs(a)postincrement.com.au www.postincrement.com.au Phone: +61 243654666 ICQ: #86852844 Fax: +61 243656905 MSN: craig_southeren(a)hotmail.com Mobile: +61 417231046 Jabber: craigs(a)jabber.org "Science is the poetry of reality." Richard Dawkins

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Migration to ANSI bool in PTLib
by Craig Southeren 27 Nov '07

27 Nov '07

To all, As described previously, PTLib is about to migrate the internal type PBoolean the ANSI type "bool". This will affect all member functions that use BOOL parameters and are overrides of standard PTLib and Opal functions. The reasons for this are to improve efficiency, and to improve compatibility with other libraries. Backwards compatibility is supported as follows: - The Unix configure option "--disable-ansi-bool" will enable the old "int BOOL" behaviour - The presence of the symbol P_USE_STANDARD_CXX_BOOL will indicate the new ANSI bool is being used, while the presence of P_USE_INTEGER_BOOL will indicate the old "int BOOL" behavior is in effect. - The new type PBoolean is be defined as either "bool" or "int" as required. The plan for migration to the new code will be in two steps: 1. A snapshot of the SVN current development trunk will be created, that does not include the PBoolean changes (PTLib 2.1.1/Opal 3.1.1) 2. We will then merge the PBoolean changes into the SVN head. This will be (PTLib 2.1.2/Opal 3.1.2) We'd like to do this in the next few days so we can move on to other pressing merge issues (yes Hannes - we are desperate to get your changes in! :) Please email opalvoip-devel(a)lists.sourceforge.net if you have any further questions or issues. Craig

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Re: [h323plus] Visual Studio Express 2008
by Simon Horne 20 Nov '07

20 Nov '07

Jan I have CC'd this to the h323plus list. This is great to have Visual Studio 2008 support. If you get a chance send me the compile errors and will see if we can patch ptlib. :) Simon > -----Original Message----- > From: openh323gk-developer-bounces(a)lists.sourceforge.net > [mailto:openh323gk-developer-bounces@lists.sourceforge.net]On Behalf Of > Jan Willamowius > Sent: Wednesday, November 21, 2007 8:03 AM > To: openh323gk-developer(a)lists.sourceforge.net > Subject: [Openh323gk-developer] Visual Studio Express 2008 > > > Hi, > > for all those who want to try the new Express 2008: > I just compiled PWLib 1.12.0, H323Plus (CVS) and GnuGk (CVS) without > any issues. Just follow the instructions for Express 2005 and let 2008 > convert the build project. > > The only problem I ran into was the PWLib detected the TextToSpeech > API, but couldn't compile the PWlib support for it, so I had to > manually disable it. Your milage on this may vary. > > Regards, > Jan > > -- > Jan Willamowius, jan(a)willamowius.de, http://www.gnugk.org/ > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2005. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________________ > > List: Openh323gk-developer(a)lists.sourceforge.net > Archive: > http://sourceforge.net/mailarchive/forum.php?forum_name=openh323gk -developer Homepage: http://www.gnugk.org/

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Re: [h323plus] Introducing PBoolean - API change alert!!!
by Jan Willamowius 20 Nov '07

20 Nov '07

Hi, I guess making the change won't be very hard for GnuGk and we've already started using STL wherever possible. The one thing I'm concerend about is to keep backward compatibility with older PWLib releases. Some people use really old OpenH323/PWLib versions to compile GnuGk and would prefer to keep them. Currently we look at the version numbers to see which features are available. So if we can simply define PBoolean back to BOOL for the old releases, I'm fine with the change. If you add config options to change what kind of bool PTLib uses, please give us a config symbol so we can detect what to define PBoolean to. Regards, Jan -- Jan Willamowius, jan(a)willamowius.de, http://www.willamowius.de/

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Improved QoS support in H323plus
by Simon Horne 19 Nov '07

19 Nov '07

To All I have updated QoS support in H323plus. DSCP (Diffserv) is now enabled by default (if compiled with DNS support). Transport QoS is now also negotiated between the parties during the capability exchange with the higher QoS value given precedence over the lower value for both direction media flow. The default values for DSCP are 46 (guaranteed) for audio and 26 (controlled load) for Video. You can change these by calling statics H323AudioCapability::SetDSCPvalue() and H323VideoCapability::SetDSCPvalue() from your application. You can also turn off the feature via a new function H323EndPoint::DisableH245QoS(). Simon No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.16.0/1137 - Release Date: 2007/11/18 5:15 PM

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