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Thread: Most SECURE Skype-Alternative for openSUSE?

  1. #1
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    Thumbs up Most SECURE Skype-Alternative for openSUSE?

    Dear friends of openSUSE,

    it feels like more than a year since I last used Skype. The reason? I refuse to use it any longer since it is everything else but secure. But, after having set up my new computer, I would like to install the most-recommended Skype-Alternative, End-to-End-Encryption is a MUST for me. I would prefer finding a service which is cross-platform to be able to recommend it to my friends and make it easier for them to change. An awesome reference to opt out of global data surveillance programs like PRISM, XKeyscore and Tempora I found is PRISM-BREAK. This website is dedicated to defend our right to privacy, which we can exercise by encrypting our communications and ending our reliance on proprietary services.

    So, fellow users, what do YOU use to securely video chat, send files and write about stuff noone else but your friend shall know about? I would like to catch up with the openSUSE community if there is some application I have not heard of yet and is particularly secure and trusted by our power users here. Let the discussion beginn!

  2. #2
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    Default Re: Most SECURE Skype-Alternative for openSUSE?

    Hello!

    One or another SIP client should do: http://askubuntu.com/questions/14945...voip-structure

    I mostly use Ekiga for SIP calls, no implementation of encryption yet it seems but it is coming: http://ekiga.org/news/2013-02-21/eki...able-available
    I also use KTP, or rather try to use it, but whatever capabilities it has at this stage I wouldn't know; KTP is quite hard to get an overview on, but I would really like the project to succeed as I am on KDE and would welcome a more integrated IM/telephony client for the DE.
    OpenSuSE 13.1, KDE 4.11.5, 64bit
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    Default Re: Most SECURE Skype-Alternative for openSUSE?

    Quote Originally Posted by F_Sauce View Post
    Hello!

    One or another SIP client should do: http://askubuntu.com/questions/14945...voip-structure

    I mostly use Ekiga for SIP calls, no implementation of encryption yet it seems but it is coming: http://ekiga.org/news/2013-02-21/eki...able-available
    I also use KTP, or rather try to use it, but whatever capabilities it has at this stage I wouldn't know; KTP is quite hard to get an overview on, but I would really like the project to succeed as I am on KDE and would welcome a more integrated IM/telephony client for the DE.
    Thank you very much for having the courage to participate in this thread. Reputation added! One interesting client I found in the section for Instant Messaging Alternatives on PRISM-BREAK is called "Jitsi" and it claims to offer end-to-end encrypted text, voice and video messaging. I would LOVE to hear your opinion on that - if other people have been using it here, please tell me how it compares to the other options out there!

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    Default Re: Most SECURE Skype-Alternative for openSUSE?

    On 2014-02-28 07:56, F Sauce wrote:
    >
    > Hello!
    >
    > One or another SIP client should do: http://tinyurl.com/m6j5vwp
    >
    > I mostly use Ekiga for SIP calls, no implementation of encryption yet it
    > seems but it is coming:


    The SIP protocol allows for encryption, end to end. The connection
    metadata can be encrypted, and the data stream can be encrypted. But you
    need all parties (the people talking plus the... whats the generic name?
    The exchange server (asterisk, for example) supporting it. And this does
    not happens always.

    On most occasions, participants will not even know if their
    communications are encrypted or not. If one of the involved parties can
    not handle an encryption protocol on which all agree, the communication
    defaults to non-encrypted.

    Besides that, I' 80% sure that those interested agencies can break those
    encrypted communications. Not as convenient to break as skype, but I'm
    pretty sure they can do it as well, if they wish.


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    Default Re: Most SECURE Skype-Alternative for openSUSE?

    You could try looking into Tox, its still in development but looked
    promising last time I checked.

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    Default Re: Most SECURE Skype-Alternative for openSUSE?

    I don't know if things have changed but for the longest time on demand encrypted multimedia (video particularly) streaming wasn't practical. Hardware (and less likely software) couldn't do the required encrypting/decrypting fast enough to support low enough latency for a practical experience. Streaming is already dropping out of order and late packets, think what that would do for encrypted packets which likely needs to ensure content integrity.

    So, as of today it may not be possible unless you build compromises into the solution and likely run over a specially constructed network, eg dedicated network links and possibly applying QoS for the protocols used.

    Still, technology advances and maybe some of the most onerous issues may be solved and hardware is getting more powerful all the time (although pure clock speed seems to have hit a wall)

    IMO,
    TSU

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    Default Re: Most SECURE Skype-Alternative for openSUSE?

    An interesting alternative is Phil Zimmermann's (of PGP fame) zfone page (http://zfoneproject.com/index.html) and the Zrtp specification.
    It is cross platform and open source plus you can choose the strength of some of the encryption schemes based on the trade off between security and execution time.

    Another alternative, is to not use software but hardware for the encryption.

    I wonder if encrypted communications be filtered out from all communications taking place and will it make it more likely you will become a "person of interest".

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    Default Re: Most SECURE Skype-Alternative for openSUSE?

    I just saw this article about Tor developing its own anonymous IM tool.
    http://arstechnica.com/information-t...m-spying-eyes/

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    Default Re: Most SECURE Skype-Alternative for openSUSE?

    Quote Originally Posted by alanbortu View Post
    You could try looking into Tox, its still in development but looked
    promising last time I checked.
    This seems to me the most promising so far and I even like their website on TOX.IM. Even though I have never heard of NaCl (their networking and cryptographing library), I am eager to give it a shot. But do I have to register first? I don't see a description... Is anybody here using it already? How does it compare to Jitsi and Zfone?

    Quote Originally Posted by J_Andrew View Post
    I just saw this article about Tor developing its own anonymous IM tool.
    http://arstechnica.com/information-t...m-spying-eyes/
    Although I think it's great that Tor is developing its own IM tool, I admit to not trusting it anymore. Too many articles and speculations have made me distrusting it. Yes, I know, noone should solely rely on using Tor or any other privacy service, but you know, TRUST and NO NEGATIVE plublicity is my priority in order to select a service running on my hardware. I still consider Tor to be an awesome project, but I will NOT use "Instantbird". What an ugly name for a secure messaging service. ;-)

    You now know my current opinion, I'd like to receive some more feedback here - awesome discussion, keep it movin'!

  10. #10
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    Default Re: Most SECURE Skype-Alternative for openSUSE?

    Quote Originally Posted by SecUpwN View Post
    This seems to me the most promising so far and I even like their website on TOX.IM. Even though I have never heard of NaCl (their networking and cryptographing library), I am eager to give it a shot. But do I have to register first? I don't see a description... Is anybody here using it already? How does it compare to Jitsi and Zfone?
    No idea about the others but I found installation to be easy (just download the rpm file from http://wiki.tox.im/binaries [There are other clients you can use listed here http://wiki.tox.im/Client] and then install it using the rpm command or yast). As for running it once it is installed, do that as you do for any other program, then click the plus sign on the bottom to add someone and then just enter their ID and a message you want to send them (the ID is randomly generated and you can get your ID by clicking the down arrow on the top right of the Venom window and selecting edit user, the bottom beside the ID will copy it into your clipboard). I have no idea how good this works as a chat system though, I have no one to test it with.
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