Good day, I found some more interesting VoIP links/ideas related to Tor that are relevent and I thought everyone would like to read.
--Index of Links: The first is a proposed study (eg. 'white paper') into the implications of routing VoIP over Tor...once Tor is UDP capable that is ;-). The second is the previously proposed UDP extension for Tor (mainly to enable VoIP). I wish I could code as to help impliment this feature. The third is information about the new cisco VoIP protocol "Skinny Client Control Protocol" which uses TCP/IP. The fourth is about "SkyPE" which is a VoIP/P2P program from the creators of KaZaa. SkyPE is propriatary with insecure encryption algoryhtm implamintation and IMHO is not secure or to be trusted. The fith is a link to the Wikipedia article "Comaparison of VoIP software". --Links: 1. "Evaluating VoIP Performance over the Tor Anonymous Communications Network (SCISS 2006)" http://cops.csci.unt.edu/sciss/2006/18/index.html -Quoted section- Abstract: [snip] ...Routing a VoIP connection through an anonymizing network can provide privacy but also increases the latency of the voice connection. In this project we aim to measure the performance characteristics of VoIP connections that are sent through a UDP-enabled Tor network ... [snip] -End quoted section- 2. "Tor Unreliable Datagram Extension Proposal" http://tor.eff.org/cvs/tor/doc/tor-spec-udp.txt -Quoted section- 0. Introduction [sniped] ...Tor is a distributed overlay network designed to anonymize low-latency TCP-based applications. The current tor specification supports only TCP-based traffic. This limitation prevents the use of tor to anonymize other important applications, notably voice over IP software. This document is a proposal to extend the tor specification to support UDP traffic... [sniped] -End quoted section- 3. "Skinny Client Control Protocol(SCCP)" http://en.wikipedia.org/wiki/Skinny_Client_Control_Protocol Skinny VoIP protocol (from Cisco) utilizes TCP/IP for it's *propriatary* :-( VoIP protocol. I may be totally misunderstanding what SCCP is/does but it seems that if a skinny protocol client came along it may use TCP/IP and thus be routeable through Tor. Although, Zfone will be unusable as Zfone uses UDP. 4. "SkyPE VoIP/P2P" http://www.skype.com http://en.wikipedia.org/wiki/Skype SkyPE is a proprietary peer-to-peer Internet telephony (VoIP) network that is now owned by E-Bay. I included SkyPE becuase it has a proxy window which can route over Socks5/HTTP/S_Proxy/etc. I would never use SkyPE because I don't trust the code/authors/E-Bay. -Quoted from "Comparison of VoIP software- Twin analyses show that Skype is relatively secure, uses properly coded algorithms and 1536/2048 bit keys and 256 bit AES. Some criticism was levelled at the "black box" nature of the package, the relative short size of the assymetric keys, and the trust placed in other computers if they "speak Skype". -End quoted section- 5. "Comparison of VoIP software" http://en.wikipedia.org/wiki/Comparison_of_VoIP_software Cheers __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
