[Users] TLS: has TLS made communication secure? Please help...

[Ferianto siregar]

Dear Gregoire,

Thank you very much for your help. Thank you. I am very happy to receive this reply message :-)
Gregoire, may I ask you again, please?
If I can make a wish to you, would you mind tell me how I can do it with Ethereal?
I have downloaded it, but I can not use it because I have not ever been use it.
Would you mind,please? 

Thank you very much for you help..Thanks :-)
Have a nice day for you.

Regards,



Ferianto

Gregoire <mlgg at hispeed.ch> wrote: Hi Ferianto!

The first thing you can is to sniff with Ethereal a SIP communication
with and without TLS. You can see and show that with TLS you can not
access to the payload of TCP.
You can also see the RFC 4346 about TLS
(ftp://ftp.rfc-editor.org/in-notes/rfc4346.txt
).

Hope it will help you ton convice your lecturer.

Regards

Greg

Ferianto siregar wrote:

> Dear all,
>
> Thank you very much for this chance. Thank you very much for your time
> to read my problem. Thanks
> All, I still get some doubts in understanding TLS because untill now,
> my lecturer still want me to evidence that the communication with TLS
> support is secure eventhough I have told him that the securing
> communication in TLS
> is in the encyption method. But, He still does not believe me. In his
> opinion, He said that I have to evidence it by eavesdropping the
> communication, so I can show the difference between communication with
> TLS and the communication without TLS.
>
> Of course, I am confused because as I know frOm the mailinglist and
> TLS tutorial, it is not necessary to proof because the security is in
> encryption in TLS.
>
> Does anybody can help me to solve my problem?
>
> Here are some question that I have to ask to you. Maybe the answer
> that I got from these questions,
> can I use to evidence the secure communication in TLS. Please help
> me..Please
>
> 1. Would anybody mind give me or show me the statement which tell the
> communication in TLS is secure?
> 2. Would anybody mind give me or show me how the call flow in TLS
> support?
>     (I mean the flow of encrypt call by using TLS)
> 3. In voIP communication, from where the sniffer can eavesdrop the
> communication untill TLS is built to protect communication? and by
> using TLS, is this hole closed ?(so the communication becomes secure?)
>
> Those are the questions. I do hope anybody can give me an answer so I
> can show it to my lecturer to proof that the TLS communication is secure.
> Please give me a suggestion. Please..
>
> Thank you very much :)
> Regards,
>
>
>
> Ferianto
>
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