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Paul Merrell

How to Protect Yourself from NSA Attacks on 1024-bit DH | Electronic Frontier Foundation - 0 views

  • In a post on Wednesday, researchers Alex Halderman and Nadia Heninger presented compelling research suggesting that the NSA has developed the capability to decrypt a large number of HTTPS, SSH, and VPN connections using an attack on common implementations of the Diffie-Hellman key exchange algorithm with 1024-bit primes. Earlier in the year, they were part of a research group that published a study of the Logjam attack, which leveraged overlooked and outdated code to enforce "export-grade" (downgraded, 512-bit) parameters for Diffie-Hellman. By performing a cost analysis of the algorithm with stronger 1024-bit parameters and comparing that with what we know of the NSA "black budget" (and reading between the lines of several leaked documents about NSA interception capabilities) they concluded that it's likely NSA has been breaking 1024-bit Diffie-Hellman for some time now. The good news is, in the time since this research was originally published, the major browser vendors (IE, Chrome, and Firefox) have removed support for 512-bit Diffie-Hellman, addressing the biggest vulnerability. However, 1024-bit Diffie-Hellman remains supported for the forseeable future despite its vulnerability to NSA surveillance. In this post, we present some practical tips to protect yourself from the surveillance machine, whether you're using a web browser, an SSH client, or VPN software. Disclaimer: This is not a complete guide, and not all software is covered.
Gary Edwards

Google's uProxy could help fight Internet censorship - 0 views

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    "At its Ideas Summit in New York, Google has announced that it is working on developing a browser extension that will act as an easy-to-use way to bypass country-specific Internet censorship and make connections safer and more private. Safer connections The tool, which was developed by the University of Washington and seeded by Google, is at its core a peer-to-peer personalized virtual private network (VPN) that redirects Internet traffic coming from an initial, less secure connection through a second, trusted connection, and then encrypts the pathway between the two terminals. Whenever you access the Internet, the connection is routed through a number of terminals. At each step of the way the connection may be blocked, surveilled, or even tampered with (especially if the data is not encrypted). On the whole, the safety and privacy of your data is only as good as the weakest link in the chain. Google's solution with uProxy was to develop a tool that makes it much easier to make an unsafe connection more secure, with the help of a trusted friend. The software, which will be available as a Chrome and Firefox extension to begin with, can use existing social networks like Facebook or Google Hangouts to help find users who already have uProxy installed on their system. If two users agree to use the service in tandem, the software can begin to make data connections safer. How it works Let's assume that Alice, who lives in a country with an Internet censorship problem such as China or Iran, contacts Bob, who has much safer, or uncensored, or unmonitored access to the Internet. Bob agrees to act as a proxy for Alice, and as long as his browser is open, Alice's outgoing web traffic will now be routed through Bob's connection, and so she'll now be able to access websites that she wouldn't otherwise be able to reach on her own. The connection between Alice and Bob is also encrypted. To an external observer looking at Bob's connection, it would appear that he is simply s
yc c

Snowflake ❄️ - 0 views

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    Please download the snowflake extension to help those in Iran. Snowflake is a system that allows people from all over the world to access censored websites and applications. Similar to how VPNs assist users in getting around Internet censorship, Snowflake helps you avoid being noticed by Internet censors by making your Internet activity appear as though you're using the Internet for a regular video or voice call.
Paul Merrell

XKeyscore Exposé Reaffirms the Need to Rid the Web of Tracking Cookies | Elec... - 0 views

  • The Intercept published an expose on the NSA's XKeyscore program. Along with information on the breadth and scale of the NSA's metadata collection, The Intercept revealed how the NSA relies on unencrypted cookie data to identify users. As The Intercept says: "The NSA’s ability to piggyback off of private companies’ tracking of their own users is a vital instrument that allows the agency to trace the data it collects to individual users. It makes no difference if visitors switch to public Wi-Fi networks or connect to VPNs to change their IP addresses: the tracking cookie will follow them around as long as they are using the same web browser and fail to clear their cookies." The NSA slides released by The Intercept give detailed guides to understanding the data transmitted by these cookies, as well as how to find unique machine identifiers that analysts can use to differentiate between multiple machines using the same IP address. We've written before about how spy agencies piggyback on social media account data to find Internet users' names or other identifying info, and these slides drive home the point that HTTP cookies leave users vulnerable to government surveillance, since any intermediary (or spy agency) can read the sensitive data they contain.
  • Worse yet, most of the time these identifying cookies come from third-party sources on webpages, and users have no meaningful way to opt out of receiving them (short of blocking all third party cookies) since advertisers (the main server of these types of cookies) refuse to honor the Do Not Track header.  Browser makers could help address this sort of non-consensual tracking by both advertisers and the NSA with some simple technical changes—changes that have been shown to reduce the number of third party cookies received by 67%. So far, though, they've been unwilling to build privacy protecting features in by default. Until they do, the best way for users to protect themselves is by installing a privacy protecting app like Privacy Badger, which is designed to block these types of uniquely identifying tracking cookies, or HTTPS Everywhere to block the transmission of HTTP cookies.
Paul Merrell

Join Opera's journey to reinvent the Web - 1 views

  • Opera today released Opera 10.10 with Opera Unite, a powerful technology for personal content sharing directly between all your devices. Opera Unite is available as a standard feature in Opera 10.10, available free from www.opera.com.To mark this release, Opera is inviting the world to join our journey to reinvent the Web. By wrapping both a Web browser and a Web server into one package, Opera Unite challenges the conventional, semi-private methods of sharing the content that really matters to people everywhere."We promised Opera Unite would reinvent the Web," said Jon von Tetzchner, CEO, Opera. "What we are really doing is reinventing how we as consumers interact with the Web. By giving our devices the ability to serve content, we become equal citizens on the Web. In an age where we have ceded control of our personal data to third-parties, Opera Unite gives us the freedom to choose how we will share the data that belongs to us."
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    Playing with the software now. Unite is a cloud integration, with a directory on your system identified as a directory to be shared with the cloud storage. Haven't really got into it yet, but I see options to keep the data in the folder private, to share it with those who know the password, and to publish the directory to the world. There are roughly 25 Unite applications not discussed in the press release here. http://unite.opera.com/applications/ My first thought was that Google will have to respond in kind, while Microsoft --- which doesn't get the power of "free" --- will respond but with a less generous offering.
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    Opps. I was wrong. There is no online storage. It is as stated in the press release, an integration of a server with the Opera browser. The shared content is served by the local machine. Which means that the local machine must be running in order for others to access the shared content. But according to the Unite FAQ, this also means that there are only practical limits on the amount of content shared, e.g., hard disk capacity and bandwidth. Why bother with setting up a LAN or VPN if you can share files over the internet using Opera? And how will Google and Microsoft respond?
Paul Merrell

Beijing Strikes Back in US-China Tech Wars | The Diplomat - 0 views

  • China’s new draft anti-terror legislation has sent waves across the U.S. tech community. If there is a brewing tech war between U.S. and China over government surveillance backdoors and a preference for indigenous software, China’s new draft terror law makes it clear that Beijing is happy to give the United States a taste of its own medicine. The law has already drawn considerable criticism from international human rights groups, including Amnesty International and Human Rights Watch for its purported attempts to legitimize wanton human rights violations in the name of counter-terrorism. Additionally, China has opted to implement its own definition of terrorism, placing  “any thought, speech, or activity that, by means of violence, sabotage, or threat, aims to generate social panic, influence national policy-making, create ethnic hatred, subvert state power, or split the state” under the umbrella of the overused T-word. The problematic human rights issues aside, the draft anti-terror law will have important implications for foreign tech firms within China. According to Reuters’ reporting on the draft anti-terror law, counter-terrorism precautions by the Chinese government would essentially require foreign firms to “hand over encryption keys and install security ‘backdoors’” into their software. Additionally, these firms would have to store critical data — certainly data on Chinese citizens and residents — on Chinese soil. The onerous implications of this law could have lead to an immediate freeze to the activities of several Western tech companies in China, the world’s second largest economy and a booming emerging market for new technologies.
  • On the surface, the most troublesome implication of this law is that in order to comply with this law, Western firms, including non-technical ventures such as financial institutions and manufacturers, will be forced to give up a great deal of security. In essence, corporate secrets, financial data — all critical data — would be insecure and available for access by Chinese regulators. The new law would also prohibit the use of secure virtual private networks (VPNs) to get around these requirements.
  • The U.S. diplomatic response to Beijing’s new draft law is perhaps best captured in the fact that a whopping four cabinet members in the Obama administration, including Secretary of State John Kerry and U.S. Trade Representative Michael Froman, wrote the Chinese government expressing “serious concern.” China, for its part, seemed unfazed by U.S. concerns. Foreign Ministry spokesperson Hua Chunying told the press that she hoped the United States would view the new anti-terror precautions in “in a calm and objective way.” Indeed, following Edward Snowden’s revelations regarding the extent of the United States’ surveillance of private firms both within and outside the United States, Beijing likely views U.S. concerns as hypocritical. One U.S. industry source told Reuters that the new law was ”the equivalent of the Patriot Act on really, really strong steroids.”
Paul Merrell

Internet privacy, funded by spooks: A brief history of the BBG | PandoDaily - 0 views

  • For the past few months I’ve been covering U.S. government funding of popular Internet privacy tools like Tor, CryptoCat and Open Whisper Systems. During my reporting, one agency in particular keeps popping up: An agency with one of those really bland names that masks its wild, bizarre history: the Broadcasting Board of Governors, or BBG. The BBG was formed in 1999 and runs on a $721 million annual budget. It reports directly to Secretary of State John Kerry and operates like a holding company for a host of Cold War-era CIA spinoffs and old school “psychological warfare” projects: Radio Free Europe, Radio Free Asia, Radio Martí, Voice of America, Radio Liberation from Bolshevism (since renamed “Radio Liberty”) and a dozen other government-funded radio stations and media outlets pumping out pro-American propaganda across the globe. Today, the Congressionally-funded federal agency is also one of the biggest backers of grassroots and open-source Internet privacy technology. These investments started in 2012, when the BBG launched the “Open Technology Fund” (OTF) — an initiative housed within and run by Radio Free Asia (RFA), a premier BBG property that broadcasts into communist countries like North Korea, Vietnam, Laos, China and Myanmar. The BBG endowed Radio Free Asia’s Open Technology Fund with a multimillion dollar budget and a single task: “to fulfill the U.S. Congressional global mandate for Internet freedom.”
  • Here’s a small sample of what the Broadcasting Board of Governors funded (through Radio Free Asia and then through the Open Technology Fund) between 2012 and 2014: Open Whisper Systems, maker of free encrypted text and voice mobile apps like TextSecure and Signal/RedPhone, got a generous $1.35-million infusion. (Facebook recently started using Open Whisper Systems to secure its WhatsApp messages.) CryptoCat, an encrypted chat app made by Nadim Kobeissi and promoted by EFF, received $184,000. LEAP, an email encryption startup, got just over $1 million. LEAP is currently being used to run secure VPN services at RiseUp.net, the radical anarchist communication collective. A Wikileaks alternative called GlobaLeaks (which was endorsed by the folks at Tor, including Jacob Appelbaum) received just under $350,000. The Guardian Project — which makes an encrypted chat app called ChatSecure, as well a mobile version of Tor called Orbot — got $388,500. The Tor Project received over $1 million from OTF to pay for security audits, traffic analysis tools and set up fast Tor exit nodes in the Middle East and South East Asia.
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    But can we trust them?
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