[EMAIL PROTECTED] schrieb: > Am Fr 16. Mai 2008 schrieb Al Johnson: > >> On Friday 16 May 2008, ramsesoriginal wrote: >> >>> I was just wondering: we have seen the problems of encryptingcalls. >>> But what about decrypting them? Let*s say someone hasa method to call >>> you with some sort of encryption.. would it be possible to write a >>> decryption for it? Maybe public key? >>> >> Depends what sort of calls you mean. If it's GSM voice calls then the same >> problems apply as already discussed. If you're talking about a data link >> encrypted end to end and passing voice data then it's possible, probably >> using established standards. You could make an OpenVPN or IPsec tunnel end >> > to > >> end, then use SIP, h323 or IAX2 over it. You could use one of the secured >> versions of SIP directly, at least one of which uses public keys, but none >> > of > >> them are universally accepted. >> > > What about ZRTP? (Zimmerman, PGP inventor). Have a look at twinkle.com! Via > GSM you can setup not only voice calls, but also fax and *DATA* calls with up > to 14400bps. Tunneling SIP and low bandwidth RTP/ZRTP through this link > should be feasible with low effort > maybe someone is able to port ekiga and zfone to the FR? So we can talk secure with a internetconnection over Bluetooth or Wlan.
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