TOR For Windows 0.2.2.34-1    

Author The Tor Project, Inc License Open Source OS Windows2000, Windows2003, WinXP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64 Date Released October 03, 2011 Downloads 337 Filesize 8.68 MB Install Support Instal And Uninstall Keywords Spy Monitor, instant messaging, IRC, SSH, TCP, TCP protocol, state security, network surveillance Your Rating   - click to rate - you will be first!

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Tor is free software and an open network that helps you defend against a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security known as traffic analysis.

Tor protects you by bouncing your communications around a distributed network of relays run by volunteers all around the world: it prevents somebody watching your Internet connection from learning what sites you visit, and it prevents the sites you visit from learning your physical location. Tor works with many of your existing applications, including web browsers, instant messaging clients, remote login, and other applications based on the TCP protocol.

Tor is a network of virtual tunnels that allows people and groups to improve their privacy and security on the Internet. It also enables software developers to create new communication tools with built-in privacy features. Tor provides the foundation for a range of applications that allow organizations and individuals to share information over public networks without compromising their privacy.

Individuals use Tor to keep websites from tracking them and their family members, or to connect to news sites, instant messaging services, or the like when these are blocked by their local Internet providers. Tor's hidden services let users publish web sites and other services without needing to reveal the location of the site. Individuals also use Tor for socially sensitive communication: chat rooms and web forums for rape and abuse survivors, or people with illnesses.

Why we need Tor

Using Tor protects you against a common form of Internet surveillance known as "traffic analysis." Traffic analysis can be used to infer who is talking to whom over a public network. Knowing the source and destination of your Internet traffic allows others to track your behavior and interests. This can impact your checkbook if, for example, an e-commerce site uses price discrimination based on your country or institution of origin. It can even threaten your job and physical safety by revealing who and where you are. For example, if you're travelling abroad and you connect to your employer's computers to check or send mail, you can inadvertently reveal your national origin and professional affiliation to anyone observing the network, even if the connection is encrypted.

How does traffic analysis work? Internet data packets have two parts: a data payload and a header used for routing. The data payload is whatever is being sent, whether that's an email message, a web page, or an audio file. Even if you encrypt the data payload of your communications, traffic analysis still reveals a great deal about what you're doing and, possibly, what you're saying. That's because it focuses on the header, which discloses source, destination, size, timing, and so on.

A basic problem for the privacy minded is that the recipient of your communications can see that you sent it by looking at headers. So can authorized intermediaries like Internet service providers, and sometimes unauthorized intermediaries as well. A very simple form of traffic analysis might involve sitting somewhere between sender and recipient on the network, looking at headers.

But there are also more powerful kinds of traffic analysis. Some attackers spy on multiple parts of the Internet and use sophisticated statistical techniques to track the communications patterns of many different organizations and individuals. Encryption does not help against these attackers, since it only hides the content of Internet traffic, not the headers.

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TOR For Windows - Copyright notice

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TOR For Windows - Latest User Reviews

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TOR For Windows - The Latest Versions History

Version	Date Released	Status	Release Notes
TOR For Windows 0.2.2.34-1	Oct 3, 2011	New Release	Privacy/anonymity fixes (clients): · Clients and bridges no longer send TLS certificate chains on outgoing OR · connections. Previously, each client or bridge would use the same cert chain · for all outgoing OR connections until its IP address changes, which allowed any · relay that the client or bridge contacted to determine which entry guards it is · using. Fixes CVE-2011-2768. Bugfix on 0.0.9pre5; found by "frosty_un". · If a relay receives a CREATE_FAST cell on a TLS connection, it no longer · considers that connection as suitable for satisfying a circuit EXTEND request. · Now relays can protect clients from the CVE-2011-2768 issue even if the clients · haven't upgraded yet. · Directory authorities no longer assign the Guard flag to relays that · haven't upgraded to the above "refuse EXTEND requests to client connections" · fix. Now directory authorities can protect clients from the CVE-2011-2768 issue · even if neither the clients nor the relays have upgraded yet. There's a new
TOR For Windows 0.2.1.30	Mar 12, 2011	New Release	Major bugfixes (security), alsincluded in 0.2.1.29: · Fix a heap overflow bug where an adversary could cause heap corruption. This bug probably allows remote code execution attacks. Reported by "debuger". Fixes CVE-2011-0427. Bugfix on 0.1.2.10-rc. · Prevent a denial-of-service attack by disallowing any zlib-compressed data whose compression factor is implausibly high. Fixes part of bug 2324; reported by "doorss". · Zerout a few more keys in memory before freeing them. Fixes bug 2384 and part of bug 2385. These key instances found by "cypherpunks", based on Andrew Case's report about being able tfind sensitive data in Tor's memory space if you have enough permissions. Bugfix on 0.0.2pre9. Major bugfixes (crashes), alsincluded in 0.2.1.29: · Prevent calls tLibevent from inside Libevent log handlers. This had potential tcause a nasty set of crashes, especially if running Libevent with debug logging enabled, and running Tor with a controller watching for low-severity log messages.
TOR For Windows 0.2.1.27	Nov 25, 2010	New Release	Major bugfixes: · Work around a security feature in OpenSSL 0.9.8l that prevents our handshake from working unless we explicitly tell OpenSSL that we are using SSL renegotiation safely. We are, of course, but OpenSSL 0.9.8l won't work unless we say we are. · Avoid crashing if the client is trying to upload many bytes and the circuit gets torn down at the same time, or if the flip side happens on the exit relay. Bugfix on 0.2.0.1-alpha; fixes bug 1150. Minor bugfixes: · Do not refuse to learn about authority certs and v2 networkstatus documents that are older than the latest consensus. This bug might have degraded client bootstrapping.
TOR For Windows 0.2.1.21	Dec 21, 2009	New Release	o Major bugfixes: - Work around a security feature in OpenSSL 0.9.8l that prevents our handshake from working unless we explicitly tell OpenSSL that we are using SSL renegotiation safely. We are, of course, but OpenSSL 0.9.8l won't work unless we say we are. - Avoid crashing if the client is trying to upload many bytes and the circuit gets torn down at the same time, or if the flip side happens on the exit relay. Bugfix on 0.2.0.1-alpha; fixes bug 1150. o Minor bugfixes: - Do not refuse to learn about authority certs and v2 networkstatus documents that are older than the latest consensus. This bug might have degraded client bootstrapping. Bugfix on 0.2.0.10-alpha. Spotted and fixed by xmux. - Fix a couple of very-hard-to-trigger memory leaks, and one hard-to- trigger platform-specific option misparsing case found by Coverity Scan.
TOR For Windows 0.2.0.32	Dec 5, 2008	New Release