Entries Tagged "EFF"

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EFF on Locational Privacy

Excellent paper: “On Locational Privacy, and How to Avoid Losing it Forever.”

Some threats to locational privacy are overt: it’s evident how cameras backed by face-recognition software could be misused to track people and record their movements. In this document, we’re primarily concerned with threats to locational privacy that arise as a hidden side-effect of clearly useful location-based services.

We can’t stop the cascade of new location-based digital services. Nor would we want to—the benefits they offer are impressive. What urgently needs to change is that these systems need to be built with privacy as part of their original design. We can’t afford to have pervasive surveillance technology built into our electronic civic infrastructure by accident. We have the opportunity now to ensure that these dangers are averted.

Our contention is that the easiest and best solution to the locational privacy problem is to build systems which don’t collect the data in the first place. This sounds like an impossible requirement (how do we tell you when your friends are nearby without knowing where you and your friends are?) but in fact as we discuss below it is a reasonable objective that can be achieved with modern cryptographic techniques.

Modern cryptography actually allows civic data processing systems to be designed with a whole spectrum of privacy policies: ranging from complete anonymity to limited anonymity to support law enforcement. But we need to ensure that systems aren’t being built right at the zero-privacy, everything-is-recorded end of that spectrum, simply because that’s the path of easiest implementation.

I’ve already written about wholesale surveillance.

Posted on August 14, 2009 at 6:30 AM • View Comments

Government Can Determine Location of Cell Phones without Telco Help

Interesting:

Triggerfish, also known as cell-site simulators or digital analyzers, are nothing new: the technology was used in the 1990s to hunt down renowned hacker Kevin Mitnick. By posing as a cell tower, triggerfish trick nearby cell phones into transmitting their serial numbers, phone numbers, and other data to law enforcement. Most previous descriptions of the technology, however, suggested that because of range limitations, triggerfish were only useful for zeroing in on a phone's precise location once cooperative cell providers had given a general location.

This summer, however, the American Civil Liberties Union and Electronic Frontier Foundation sued the Justice Department, seeking documents related to the FBI's cell-phone tracking practices. Since August, they've received a stream of documents—the most recent batch on November 6—that were posted on the Internet last week. In a post on the progressive blog Daily Kos, ACLU spokesperson Rachel Myers drew attention to language in several of those documents implying that triggerfish have broader application than previously believed.

Posted on November 26, 2008 at 6:06 AM • View Comments

U.S. Customs Seizing Laptops

I’ve heard many anecdotal stories about U.S. Customs and Border Protection seizing, copying data from, or otherwise accessing laptops of people entering the country. But this is very mainstream:

Today, the Electronic Frontier Foundation and Asian Law Caucus, two civil liberties groups in San Francisco, plan to file a lawsuit to force the government to disclose its policies on border searches, including which rules govern the seizing and copying of the contents of electronic devices. They also want to know the boundaries for asking travelers about their political views, religious practices and other activities potentially protected by the First Amendment. The question of whether border agents have a right to search electronic devices at all without suspicion of a crime is already under review in the federal courts.

The lawsuit was inspired by two dozen cases, 15 of which involved searches of cellphones, laptops, MP3 players and other electronics. Almost all involved travelers of Muslim, Middle Eastern or South Asian background, many of whom, including Mango and the tech engineer, said they are concerned they were singled out because of racial or religious profiling.

Some of this seems pretty severe:

“I was assured that my laptop would be given back to me in 10 or 15 days,” said [Maria] Udy, who continues to fly into and out of the United States. She said the federal agent copied her log-on and password, and asked her to show him a recent document and how she gains access to Microsoft Word. She was asked to pull up her e-mail but could not because of lack of Internet access. With ACTE’s help, she pressed for relief. More than a year later, Udy has received neither her laptop nor an explanation.

[…]

Kamran Habib, a software engineer with Cisco Systems, has had his laptop and cellphone searched three times in the past year. Once, in San Francisco, an officer “went through every number and text message on my cellphone and took out my SIM card in the back,” said Habib, a permanent U.S. resident. “So now, every time I travel, I basically clean out my phone. It’s better for me to keep my colleagues and friends safe than to get them on the list as well.”

Privacy? There’s no need to worry:

Hollinger said customs officers “are trained to protect confidential information.”

I know I feel better.

I strongly recommend the two-tier encryption strategy I described here. And I even more strongly recommend cleaning out your laptop and BlackBerry regularly; if you don’t have it on your computer, no one else can get his hands on it. This defense not only works against U.S. customs, but against the much more likely threat of you losing the damn thing.

And the TSA wants you to know that it’s not them.

Posted on February 12, 2008 at 12:23 PM • View Comments

REAL ID Action Required Now

I’ve written about the U.S. national ID card—REAL ID—extensively (most recently here). The Department of Homeland Security has published draft rules regarding REAL ID, and are requesting comments. Comments are due today, by 5:00 PM Eastern Time. Please, please, please, go to this Privacy Coalition site and submit your comments. The DHS has been making a big deal about the fact that so few people are commenting, and we need to prove them wrong.

This morning the Senate Judiciary Committee held hearings on REAL ID (info—and eventually a video—here); I was one of the witnesses who testified.

And lastly, Richard Forno and I wrote this essay for News.com:

In March, the Department of Homeland Security released its long-awaited guidance document regarding national implementation of the Real ID program, as part of its post-9/11 national security initiatives. It is perhaps quite telling that despite bipartisan opposition, Real ID was buried in a 2005 “must-pass” military spending bill and enacted into law without public debate or congressional hearings.

DHS has maintained that the Real ID concept is not a national identification database. While it’s true that the system is not a single database per se, this is a semantic dodge; according to the DHS document, Real ID will be a collaborative data-interchange environment built from a series of interlinking systems operated and administered by the states. In other words, to the Department of Homeland Security, it’s not a single database because it’s not a single system. But the functionality of a single database remains intact under the guise of a federated data-interchange environment.

The DHS document notes the “primary benefit of Real ID is to improve the security and lessen the vulnerability of federal buildings, nuclear facilities, and aircraft to terrorist attack.” We know now that vulnerable cockpit doors were the primary security weakness contributing to 9/11, and reinforcing them was a long-overdue protective measure to prevent hijackings. But this still raises an interesting question: Are there really so many members of the American public just “dropping by” to visit a nuclear facility that it’s become a primary reason for creating a national identification system? Are such visitors actually admitted?

DHS proposes guidelines for proving one’s identity and residence when applying for a Real ID card. Yet while the department concedes it’s a monumental task to prove one’s domicile or residence, it leaves it up to the states to determine what documents would be adequate proof of residence—and even suggests that a utility bill or bank statement might be appropriate documentation. If so, a person could easily generate multiple proof-of-residence documents. Basing Real ID on such easy-to-forge documents obviates a large portion of what Real ID is supposed to accomplish.

Finally, and perhaps most importantly for Americans, the very last paragraph of the 160-page Real ID document deserves special attention. In a nod to states’ rights advocates, DHS declares that states are free not to participate in the Real ID system if they choose—but any identification card issued by a state that does not meet Real ID criteria is to be clearly labeled as such, to include “bold lettering” or a “unique design” similar to how many states design driver’s licenses for those under 21 years of age.

In its own guidance document, the department has proposed branding citizens not possessing a Real ID card in a manner that lets all who see their official state-issued identification know that they’re “different,” and perhaps potentially dangerous, according to standards established by the federal government. They would become stigmatized, branded, marked, ostracized, segregated. All in the name of protecting the homeland; no wonder this provision appears at the very end of the document.

One likely outcome of this DHS-proposed social segregation is that people presenting non-Real ID identification automatically will be presumed suspicious and perhaps subject to additional screening or surveillance to confirm their innocence at a bar, office building, airport or routine traffic stop. Such a situation would establish a new form of social segregation—an attempt to separate “us” from “them” in the age of counterterrorism and the new normal, where one is presumed suspicious until proven more suspicious.

Two other big-picture concerns about Real ID come to mind: Looking at the overall concept of a national identification database, and given existing data security controls in large distributed systems, one wonders how vulnerable this system-of-systems will be to data loss or identity theft resulting from unscrupulous employees, flawed technologies, external compromises or human error—even under the best of security conditions. And second, there is no clear guidance on the limits of how the Real ID database would be used. Other homeland security initiatives, such as the Patriot Act, have been used and applied—some say abused—for purposes far removed from anything related to homeland security. How can we ensure the same will not happen with Real ID?

As currently proposed, Real ID will fail for several reasons. From a technical and implementation perspective, there are serious questions about its operational abilities both to protect citizen information and resist attempts at circumvention by adversaries. Financially, the initial unfunded $11 billion cost, forced onto the states by the federal government, is excessive. And from a sociological perspective, Real ID will increase the potential for expanded personal surveillance and lay the foundation for a new form of class segregation in the name of protecting the homeland.

It’s time to rethink some of the security decisions made during the emotional aftermath of 9/11 and determine whether they’re still a good idea for homeland security and America. After all, if Real ID was such a well-conceived plan, Maine and 22 other states wouldn’t be challenging it in their legislatures or rejecting the Real ID concept for any number of reasons. But they are.

And we as citizens should, too. Let the debate begin.

Again, go to this Privacy Coalition site and express your views. Today. Before 5:00 PM Eastern Time. (Or, if you prefer, you can use EFF’s comments page.)

Really. It will make a difference.

EDITED TO ADD (5/8): Status of anti-REAL-ID legislation in the states.

EDITED TO ADD (5/9): Article on the hearing.

Posted on May 8, 2007 at 12:15 PM • View Comments

2007 EFF Pioneer Award

Last Tuesday I accepted my EFF Pioneer Award. Here’s an audio of my speech, and here’s a blog report from the event.

I am very pleased to receive the award, and am simply stunned by this quote from Cory Doctorow:

Technology could never achieve what the fundamental values of a democratic society can attain. We can change the world with the power of ideas. I defy you to read Bruce’s incredible essays and not have it change the way you think about the world.

EDITED (4/6): Here’s a video.

Posted on March 31, 2007 at 10:19 AM • View Comments

More on Electronic Voting Machines

Seems like every election I write something about voting machines. I wrote this and this in 2004, this and this in 2003, and this way back in 2000.

This year I wrote an essay for Forbes.com. It’s really nothing that I, and others, haven’t already said previously.

Florida 13 is turning out to be a bigger problem than I described:

The Democrat, Christine Jennings, lost to her Republican opponent, Vern Buchanan, by just 373 votes out of a total 237,861 cast -­ one of the closest House races in the nation. More than 18,000 voters in Sarasota County, or 13 percent of those who went to the polls Tuesday, did not seem to vote in the Congressional race when they cast ballots, a discrepancy that Kathy Dent, the county elections supervisor, said she could not explain.

In comparison, only 2 percent of voters in one neighboring county within the same House district and 5 percent in another skipped the Congressional race, according to The Herald-Tribune of Sarasota. And many of those who did not seem to cast a vote in the House race did vote in more obscure races, like for the hospital board.

And the absentee ballots collected for the same race show only a 2.5% difference in the number of voters that voted for candidates in other races but not for Congress.

There’ll be a recount, and with that close a margin it’s pretty random who will eventually win. But because so many votes were not recorded—and I don’t see how anyone who has any understanding of statistics can look at this data and not conclude that votes were not recorded—we’ll never know who should really win this district.

In Pennsylvania, the Republican State Committee is asking the Secretary of State to impound voting machines because of potential voting errors:

Pennsylvania GOP officials claimed there were reports that some machines were changing Republican votes to Democratic votes. They asked the state to investigate and said they were not ruling out a legal challenge.

According to Santorum’s camp, people are voting for Santorum, but the vote either registered as invalid or a vote for Casey.

RedState.com describes some of the problems:

RedState is getting widespread reports of an electoral nightmare shaping up in Pennsylvania with certain types of electronic voting machines.

In some counties, machines are crashing. In other counties, we have enough reports to treat as credible that fact that some Rendell votes are being tabulated by the machines for Swann and vice versa. The same is happening with Santorum and Casey. Reports have been filed with the Pennsylvania Secretary of State, but nothing has happened.

I’m happy to see a Republican at the receiving end of the problems.

Actually, that’s not true. I’m not happy to see anyone at the receiving end of voting problems. But I am sick and tired of this being perceived as a partisan issue, and I hope some high-profile Republican losses that might be attributed to electronic voting-machine malfunctions (or even fraud) will change that perception. This is a serious problem that affects everyone, and it is in everyone’s interest to fix it.

FL-13 was the big voting-machine disaster, but there were other electronic voting-machine problems reported:

The types of machine problems reported to EFF volunteers were wide-ranging in both size and scope. Polls opened late for machine-related reasons in polling places throughout the country, including Ohio, Florida, Georgia, Virginia, Utah, Indiana, Illinois, Tennessee, and California. In Broward County, Florida, voting machines failed to start up at one polling place, leaving some citizens unable to cast votes for hours. EFF and the Election Protection Coalition sought to keep the polling place open late to accommodate voters frustrated by the delays, but the officials refused. In Utah County, Utah, more than 100 precincts opened one to two hours late on Tuesday due to problems with machines. Both county and state election officials refused to keep polling stations open longer to make up for the lost time, and a judge also turned down a voter’s plea for extended hours brought by EFF.

And there’s this election for mayor, where one of the candidates received zero votes—even though that candidate is sure he voted for himself.

ComputerWorld is also reporting problems across the country, as is The New York Times. Avi Rubin, whose writings on electronic voting security are always worth reading, writes about a problem he witnessed in Maryland:

The voter had made his selections and pressed the “cast ballot” button on the machine. The machine spit out his smartcard, as it is supposed to do, but his summary screen remained, and it did not appear that his vote had been cast. So, he pushed the smartcard back in, and it came out saying that he had already voted. But, he was still in the screen that showed he was in the process of voting. The voter then pressed the “cast ballot” again, and an error message appeared on the screen that said that he needs to call a judge for assistance. The voter was very patient, but was clearly taking this very seriously, as one would expect. After discussing the details about what happened with him very carefully, I believed that there was a glitch with his machine, and that it was in an unexpected state after it spit out the smartcard. The question we had to figure out was whether or not his vote had been recorded. The machine said that there had been 145 votes cast. So, I suggested that we count the voter authority cards in the envelope attached to the machine. Since we were grouping them into bundles of 25 throughout the day, that was pretty easy, and we found that there were 146 authority cards. So, this meant that either his vote had not been counted, or that the count was off for some other reason. Considering that the count on that machine had been perfect all day, I thought that the most likely thing is that this glitch had caused his vote not to count. Unfortunately, because while this was going on, all the other voters had left, other election judges had taken down and put away the e-poll books, and we had no way to encode a smartcard for him. We were left with the possibility of having the voter vote on a provisional ballot, which is what he did. He was gracious, and understood our predicament.

The thing is, that I don’t know for sure now if this voter’s vote will be counted once or twice (or not at all if the board of election rejects his provisional ballot). In fact, the purpose of counting the voter authority cards is to check the counts on the machines hourly. What we had done was to use the number of cards to conclude something about whether a particular voter had voted, and that is not information that these cards can provide. Unfortunately, I believe there are an unimaginable number of problems that could crop up with these machines where we would not know for sure if a voter’s vote had been recorded, and the machines provide no way to check on such questions. If we had paper ballots that were counted by optical scanners, this kind of situation could never occur.

How many hundreds of these stories do we need before we conclude that electronic voting machines aren’t accurate enough for elections?

On the plus side, the FL-13 problems have convinced some previous naysayers in that district:

Supervisor of Elections Kathy Dent now says she will comply with voters who want a new voting system—one that produces a paper trail…. Her announcement Friday marks a reversal for the elections supervisor, who had promoted and adamantly defended the touch-screen system the county purchased for $4.5 million in 2001.

One of the dumber comments I hear about electronic voting goes something like this: “If we can secure multi-million-dollar financial transactions, we should be able to secure voting.” Most financial security comes through audit: names are attached to every transaction, and transactions can be unwound if there are problems. Voting requires an anonymous ballot, which means that most of our anti-fraud systems from the financial world don’t apply to voting. (I first explained this back in 2001.)

In Minnesota, we use paper ballots counted by optical scanners, and we have some of the most well-run elections in the country. To anyone reading this who needs to buy new election equipment, this is what to buy.

On the other hand, I am increasingly of the opinion that an all mail-in election—like Oregon has—is the right answer. Yes, there are authentication issues with mail-in ballots, but these are issues we have to solve anyway, as long as we allow absentee ballots. And yes, there are vote-buying issues, but almost everyone considers them to be secondary. The combined benefits of 1) a paper ballot, 2) no worries about long lines due to malfunctioning or insufficient machines, 3) increased voter turnout, and 4) a dampening of the last-minute campaign frenzy make Oregon’s election process very appealing.

Posted on November 13, 2006 at 9:29 AM • View Comments

ScatterChat

ScatterChat is a secure instant messaging client. From the press release:

ScatterChat is unique in that it is intended for non-technical human rights activists and political dissidents operating behind oppressive national firewalls. It is an instant messaging client that provides end-to-end encryption over the Electronic Frontier Foundation-endorsed Tor network. Its security features include resiliency against partial compromise through perfect forward secrecy, immunity from replay attacks, and limited resistance to traffic analysis, all reinforced through a pro-actively secure design.

A nice application of Tor.

EDITED TO ADD (8/8): There are flaws in the protocol. There’s an advisory on one of them.

Posted on July 31, 2006 at 1:48 PM • View Comments

AT&T Assisting NSA Surveillance

Interesting details emerging from EFF’s lawsuit:

According to a statement released by Klein’s attorney, an NSA agent showed up at the San Francisco switching center in 2002 to interview a management-level technician for a special job. In January 2003, Klein observed a new room being built adjacent to the room housing AT&T’s #4ESS switching equipment, which is responsible for routing long distance and international calls.

“I learned that the person whom the NSA interviewed for the secret job was the person working to install equipment in this room,” Klein wrote. “The regular technician work force was not allowed in the room.”

Klein’s job eventually included connecting internet circuits to a splitting cabinet that led to the secret room. During the course of that work, he learned from a co-worker that similar cabinets were being installed in other cities, including Seattle, San Jose, Los Angeles and San Diego.

“While doing my job, I learned that fiber optic cables from the secret room were tapping into the Worldnet (AT&T’s internet service) circuits by splitting off a portion of the light signal,” Klein wrote.

The split circuits included traffic from peering links connecting to other internet backbone providers, meaning that AT&T was also diverting traffic routed from its network to or from other domestic and international providers, according to Klein’s statement.

The secret room also included data-mining equipment called a Narus STA 6400, “known to be used particularly by government intelligence agencies because of its ability to sift through large amounts of data looking for preprogrammed targets,” according to Klein’s statement.

Narus, whose website touts AT&T as a client, sells software to help internet service providers and telecoms monitor and manage their networks, look for intrusions, and wiretap phone calls as mandated by federal law.

More about what the Narus box can do.

EDITED TO ADD (4/14): More about Narus.

Posted on April 14, 2006 at 7:58 AM • View Comments

AT&T's 1.9-Trillion-Call Database

This whole article is worth reading, but I found this tidbit particularly interesting:

He was alluding to databases maintained at an AT&T data center in Kansas, which now contain electronic records of 1.92 trillion telephone calls, going back decades. The Electronic Frontier Foundation, a digital-rights advocacy group, has asserted in a lawsuit that the AT&T Daytona system, a giant storehouse of calling records and Internet message routing information, was the foundation of the N.S.A.’s effort to mine telephone records without a warrant.

An AT&T spokeswoman said the company would not comment on the claim, or generally on matters of national security or customer privacy.

But the mining of the databases in other law enforcement investigations is well established, with documented results. One application of the database technology, called Security Call Analysis and Monitoring Platform, or Scamp, offers access to about nine weeks of calling information. It currently handles about 70,000 queries a month from fraud and law enforcement investigators, according to AT&T documents.

A former AT&T official who had detailed knowledge of the call-record database said the Daytona system takes great care to make certain that anyone using the database – whether AT&T employee or law enforcement official with a subpoena – sees only information he or she is authorized to see, and that an audit trail keeps track of all users. Such information is frequently used to build models of suspects’ social networks.

The official, speaking on condition of anonymity because he was discussing sensitive corporate matters, said every telephone call generated a record: number called, time of call, duration of call, billing category and other details. While the database does not contain such billing data as names, addresses and credit card numbers, those records are in a linked database that can be tapped by authorized users.

New calls are entered into the database immediately after they end, the official said, adding, “I would characterize it as near real time.”

According to a current AT&T employee, whose identity is being withheld to avoid jeopardizing his job, the mining of the AT&T databases had a notable success in helping investigators find the perpetrators of what was known as the Moldovan porn scam.

In 1997 a shadowy group in Moldova, a former Soviet republic, was tricking Internet users by enticing them to a pornography Web site that would download a piece of software that disconnected the computer user from his local telephone line and redialed a costly 900 number in Moldova.

While another long-distance carrier simply cut off the entire nation of Moldova from its network, AT&T and the Moldovan authorities were able to mine the database to track the culprits.

Posted on March 3, 2006 at 11:45 AM • View Comments

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Sidebar photo of Bruce Schneier by Joe MacInnis.