Child-safety activists charge that some of the age-verification firms want to help Internet companies tailor ads for children. They say these firms are substituting one exaggerated threat -- the menace of online sex predators -- with a far more pervasive danger from online marketers like junk food and toy companies that will rush to advertise to children if they are told revealing details about the users.

It's an old story: protecting against the rare and spectacular by making yourself more vulnerable to the common and pedestrian.

Hash functions are the most commonly used cryptographic primitive, and the most poorly understood. You can think of them as fingerprint functions: They take an arbitrary long data stream and return a fixed length, and effectively unique, string. The security comes from the fact that while it's easy to generate the fingerprint from a file, it's infeasible to go the other way and generate a file given a fingerprint.

Originally created to make digital signatures more efficient, hashes are now used to secure the very fundamentals of our information infrastructure: in password logins, secure web connections, encryption key management, virus and malware scanning, and almost every cryptographic protocol in current use. Without cryptographic hash functions, the internet would simply not work. At the same time, there isn't a good theory of hash functions. Unlike encryption algorithms, there are no secret keys involved; this makes it harder to mathematically define exactly what hash functions are.

The National Institute of Standards and Technology, NIST, is holding a competition to replace the SHA family of hash functions. "SHA" stands for "Secure Hash Algorithm." It was developed by the NSA in 1993 to replace the commercial MD4 and MD5 algorithms, and has been updated several times since then. All the SHA algorithms are very similar, and have been increasingly under attack, so NIST wants to replace them.

The competition is important because, unlike other technological standards, committee design — balancing the interests of diverse constituents — isn't conducive to good security. Security is best when it's designed by expert teams and then subjected to public review. And cryptography is best when it's chosen by competition.

In 1997, NIST held a competition for a block cipher to replace DES. Fifteen candidates and three-and-a-half years later, Rijndael became the new Advanced Encryption Standard — AES. NIST is doing the same thing for what it's calling SHA-3 (not, for some unexplained reason, the Advanced Hash Standard or AHS).

The deadline was October 31, and NIST received 64 submissions. This isn't surprising — I predicted 80 — as most of the 15 AES submitters were professors, whose students at the time have become professors themselves, with their own students. (If NIST does a stream cipher competition in another ten years, they should expect about 256 submissions.) These submissions came from academia, from industry, and from hobbyists. CIO magazine recently interviewed one of the submitters, who is 15. Twenty-eight submissions have been made public by the submitters, and six of those have been broken.

NIST is going through all the submissions right now, making sure they are complete and proper. Their goal is to publish all accepted submissions by the end of November, in advance of the First Hash Function Candidate Conference, to be held in Belgium right after the Fast Software Encryption workshop in February.

The group expects to quickly make a first cut of algorithms — hopefully to about a dozen — and give the community a year of cryptanalysis before making a second cut in 2010. After another year of cryptanalysis, NIST will choose a winner in 2011. Expect a final standard by 2012.

My advice for software developers is to let the process run its course. While it's tempting to use the new cool algorithms in your designs, it's far too soon to trust any of them. This process is likely to result in all sorts of new research results in hash function security, and some real cryptanalytic surprises. Give the community a few years to figure out which ones are good and which aren't.

I've previously called this sort of thing a cryptographic demolition derby: The last one left standing wins. But that's only partially true. Certainly all the groups will spend the next few years trying to cryptanalyze each other, but in the end there will be a bunch of unbroken algorithms. NIST will select one based on performance and features.

NIST has stated that the goal of this process is not to choose the best standard but to choose a good standard. I think that's smart; in this process, the best is the enemy of the good. While there's no rush to choose a new standard — the SHA-2 algorithms will remain secure for the foreseeable future — we don't want to analyze the candidates forever.

Personally, I was part of a group of eight cryptographers that submitted Skein to the competition. A decade ago, writing Twofish and participating in the AES process was the most fun I had ever had in cryptography. These next few years promise to be even more fun.

---

Bruce Schneier is chief security technology officer of BT. His new book is Schneier on Security.

The company offered...

]]> Thu, 23 Oct 2008 00:00:00 +0000 emergency security patch windows users rush microsoft thursday company Microsoft to rush out emergency Windows patch http://securityratty.com/article/18b7b71e510689ce5dcb01b616a702f6 http://securityratty.com/article/18b7b71e510689ce5dcb01b616a702f6 Wed, 22 Oct 2008 20:00:00 +0000 emergency security patch windows users rush microsoft thursday Microsoft to rush out emergency Windows patch http://securityratty.com/article/c3cb795253913d9e8117ca429595355f http://securityratty.com/article/c3cb795253913d9e8117ca429595355f
What started as a problem with risky mortgages in hot real estate markets in the United States has spread to Wall Street with a devastating impact on the financial health and well being of a number of banks and an insurance company. Each day, the turmoil spreads, first to the equity and commodity markets where investors and speculators attempt to preserve what capital remains. Next, the central banks and governments rush in with an infusion of liquidity in an attempt to keep the money flowing through the world's financial market.

The media commentary on the current financial crisis sounds the tone that all the laws of economics and free markets no longer apply. The reporters sound as if the next developments will be Mother Nature suspending the laws of physics and gravity. Against this backdrop, CIOs and IT managers wonder, "What do we do?"

There is no denying that business as usual is not currently happening. To speculate or attempt to deal with the regulatory fallout that will follow this financial crisis is currently a waste of time. The central focus that CIOs must address now is what impact will this financial crisis have on IT in the next budget cycle. Also, how can IT help the enterprise demonstrate trustworthiness to key stakeholders, maintain critical functions that drive revenue and cash flow, and focus on the needs of the people who work for your organization.

At the heart of the current financial crisis is a lack in confidence in the credit markets. Government officials report that interbank lending has ground to a halt, which prompted the U.S. Federal Reserve to step in on 7 October 2008 and offer direct short term lending to U.S. corporations.

First, to combat this lack of confidence permeating the market, enterprises should take extraordinary means to increase their financial transparency and demonstrate that they have the ability to meet their obligations to creditors, customers, and the communities where they are located. Senior management must develop and exercise a voice in the public policy dialog immediately - and voluntarily. Do not wait for Congressional subpoenas, shareholder meetings, or ambush interviews by the media. Tell the world, honestly, about the state of your company and its plans for the near term and the long view.

Second, everyone must develop a laser-like focus on the organization's value proposition, those intangible reasons that define why your enterprise exists. To leverage an old cliché, every oar must be in the water and pulling in the same direction. The goal is not just to make it to the finish line, but to survive. Ancillary or tertiary projects must be postponed for a later time; and tasks that improve customer service, remove friction from processes, and increase cash flow should be top priorities.

Finally, think about the people who work for you. No doubt they are scared by the uncertainty about the future. Management must be honest and open in keeping the rank and file apprised of the organization's situation. They should be encouraged to communicate that information in a timely fashion with friends and neighbors in the community. Management should be extremely sensitive to non-work related issues that may have an impact on employee morale and well being. The most obvious is related to housing, mortgage default and potential foreclosure. However, it can extend beyond the most obvious issues. The problem with short-term lending is also having an impact on some governmental agencies, and some school districts are cutting back to only four days of instruction, forcing many parents to scramble and find new daycare arrangements. ]]> Fri, 17 Oct 2008 07:38:02 +0000 financial crisis current financial crisis increase cash flow increase central focus cash flow focus senior management obvious issues Given the Current Economic Turmoil, What Should IT Managers Do? http://securityratty.com/article/2dce81ab5be406fb5211a9daea174b0c http://securityratty.com/article/2dce81ab5be406fb5211a9daea174b0c Several folks (Hi Daniel, Brent, David!) sent email & twitters asking us our opinion on a Dark Reading article called “Why Risk Management Doesn’t Work” which if you click on the link should come up for you after seeing someone’s advertisement for a few seconds.

I’m assuming the author wants us to read the title as “Things to Look Out For in Performing Risk Analysis” and not “Risk Management is Folly - Stop, Stop, Stop!” The former is fine, the latter isn’t supported by the evidence presented by the subjects of the article.
The subjects of the article are a good study from Wade Baker & Co. at Verizon, and a report from RSA’s Security for Business Innovation Council. Let’s take a look at each of these and examine why what they’re saying might contribute to poor risk management, shall we?

1.)  THE VERIZON REPORT

The Verizon report is an analysis of some 530 forensic investigations their company performed.  It is well worth your time as it’s chock full of interesting information.  As it relates to the Dark Reading piece, a coarse summary would be that “likelihood” is “different” for different people and so you can’t use the same “likelihood” across different industries.

Distilled through the lens of FAIR:

“different threat communities may be applicable based on Probability of Action factors which include: Value, Level of Effort and Risk (of Getting Caught).”

Or, even further distilled and in the words of my six year old son,

“Duh-uh”.

With regards to what I assume is the purpose of the article (What Doesn’t Work in Risk Analysis) this concept  seems just to rehash the old GIGO argument regarding risk analysis.  Great.  Can’t argue with that, nor it’s corollary QIQO (quality in, quality out).

But let me ask you -  is this really a problem common in your analysis?  Did reading this article make you go “Crap, we’ve been using data normalized across multiple industries in our analysis! They’re all wrong!”  Or have you already been accounting for the unique value proposition your company has to the specific threat community you’re worried about?  See, maybe I’m just not your average analyst, but even in my NIST/OCTAVE days, this has *never* been an issue for me.

Let me be specific, this is not a problem with Verizon’s very cool report.  It’s just that I don’t see what the big deal is.  This article is starting to feel like someone is running through the motions, trying to play the ” a crazy title gets people to read a boring article” game.

Speaking of cool reports - You know what would be cool?  I think it would be interesting to see is the quality of these companies’ “risk management process” established using good criteria,  and then correlated to the frequency and magnitude of real-world losses across the aggregate sample.  In other words, can we establish evidence that strong risk management practices not just reduce “risk” but also reduce actual incidents.

2.)  THE RSA COUNCIL “EXPLORES WHY LEGACY METHODS OF EVALUATING INFORMATION SECURITY RISK DON’T WORK IN TODAY’S CONNECTED WORLD, IN WHICH ANY NEW BUSINESS INNOVATION INHERENTLY CARRIES SOME LEVEL OF RISK TO INFORMATION.”

This report from the RSA council puts forth a seemingly obvious proposition, that risk must be balanced by reward.  Why is this news?  Now as I read the article it’s not clear if:

• The RSA Council is claiming that the CISO’s office should be the ones determining reward.  Absurd.

or

• Businesses aren’t doing a good job at determining risk and reward.

Let’s go with the latter.  So I’m pretty sure (good) businesses do a good job at estimating reward.  Businesses I’ve been a part of?  We LOVE(D) estimating reward.  We don’t tend to start projects all willy-nilly. No we tend to be careful to identify the size of the market and what it will cost to address the market.  So what could the problem be that this RSA council is trying to address?  Maybe it has to do with something like the following:

Yesterday, I got a demo of an IT-GRC application that shall remain nameless.  It seemed to be very good at the “C” bits - lots of information on regulations and expectations and even what sorts of controls would answer the regulations (which is goofy, but we’ll have to talk about that later).  It also gave you the ability to build workflow quite nicely.  But it measured NOTHING.  There really was no observable “G” and “R” was really Medium X Low X Low = High sorts of stuff.  So let’s use this relatively expensive tool as evidence of what your average CISO is armed with going into a Risk/Reward sort of meeting.  I imagine a nice board room with wood-grain paneling and glass bowls filled with little chocolate covered mints designed to give everyone involved in the meeting (CEO, CFO, CIO, CSO, VP S&M, etc…) a little sugar rush when needed and fresh breath.  The conversation goes a little something like this (apologies to Rich):

Business Guy Who Wants to Make Money Because That’s What Businesses Do: Based on market studies, we believe that initial gross revenues from the new product and technology rollout will be eleventy gazillion dollars based on a 37% market penetration in Scandinavia, alone.

CSO: Well now, we have a likelihood of “High” and a “C” impact of Medium, and an “I” impact of Low, and an “A” impact of “High” and because we are a (bank/hospital/retailer/basically any business that breathes anymore) we weight “C” by a factor of 2 - we multiplied those all together and got a “High”.

So can you guys delay the product rollout by 9 months and give me a bunch more money that’s not in the budget so that I can get this thing down to a “Medium”, please?

Again, I just don’t see the problem with Information Risk Management being that our businesses have no idea what the rewards of business might be.  Now maybe we need get a seat in that boardroom just to be able to talk about our “Mediums”, sure.  And maybe we’re infantile in our ability to describe our problem space.  But I cannot fathom that “Risk Management Doesn’t Work” because businesses haven’t been considering “reward”.

WHY RISK MANAGEMENT MAY  NOT BE WORKIN’ FOR YOU

Two meta-categories of causation:

• No skills

and/or

• No resources

Any ancillary “cause” can be mapped to one of these categories.  You could have significant resources but crappy models, and have conversations like our imaginary CSO, above.  You could have really good models and people trained and motivated to use them, but scarce time & money, so no conversation happens.

Now my question for you is - which does it make sense to acquire *first* to solve the “Why Risk Management Doesn’t Work” problems, skills or resources?

Weldon, who is currently being investigated by the FBI over alleged corruption during his time in office, visited Libya in March to discuss a possible military deal, according to a letter describing the trip from Weldon to Defense Solutions CEO Timothy Ringgold. In May, Weldon, together with Ringgold and another company representative, traveled to Moscow to discuss working with Russia's weapons-export agency on arms sales to the Middle East.

Both trips were part of the company's effort to tap into the growing -- and often legally murky -- market for selling weapons from former Eastern Bloc countries to the Middle East and Afghanistan.

Ex-Rep. Curt Weldon, R-Penn., is helping broker deals between Russian weapons suppliers and the Iraqi and Libyan governments through his company, Defense Solutions.
Photo: H. Rumph Jr/AP

The Russians want to sell weapons to Iraq directly, but "must go slow on Iraq because of political reasons" and want to work with an "intermediary" like Defense Solutions, CEO Ringgold subsequently wrote to colleagues. "They have not spoken with any American company that can offer the quid pro quo that we can or that has the connections in Russia that we have," he boasted.

A few years ago, an American company proposing to sell weapons to Libya might have triggered a congressional hearing. So, too, would have a proposal to conduct arms deals with Russia, which the United States has accused of selling high-tech weapons to Syria and Iran.

However, U.S. government efforts to rapidly equip countries like Afghanistan and Iraq -- which have largely Soviet-origin weapons -- have created legal ambiguities and loopholes in export controls that didn't exist in years past and given rise to a new class of arms trade middlemen. So, even though both Libya and the Russian arms export agency are on official U.S. blacklists, government officials and analysts involved in weapons sales say the rules have become unclear as the push to equip allies in the global war on terror has blazed new but uncertain legal ground.

Eagerly stepping into that virgin territory is Defense Solutions, a Pennsylvania-based company that is carving out a small but lucrative niche in a new international arms bazaar. The firm boasts as its advisors a number of influential Washington insiders, such as retired General Barry McCaffrey, the former White House drug czar.

Helping the firm make key connections is Curt Weldon, a former Republican congressman from Pennsylvania at the center of an FBI investigation into alleged conflicts of interest during his time in office. Weldon, now a key executive at Defense Solutions, is working with the company to set up these weapons deals.

Defense Solutions has also proposed refurbishing Libya's BTR-60 armored personnel carriers, according to a sales proposal seen by Wired.com. Defense Solutions denies drafting a sales proposal to Libya.

It's an unusual, if not an entirely unexpected chapter for Weldon, whose time in office included frequent trips to Russia. As an influential member of the House Armed Services Committee, Weldon pushed for multibillion-dollar defense programs, like ballistic missile defense, and earned a reputation as a foreign policy gadfly, boasting of his contacts with officials in nations labeled by the administration as "rogue states" such as Libya and North Korea. Weldon's wild claims about a 9/11 cover-up and his sensationalist book warning of an Iranian terror plot, sometimes earned him official scorn and public ridicule, but it was accusations that he steered contracts to Eastern European businesses linked to his daughter's lobbying firm that drew the government's attention.

Weldon was voted out of office in 2006 just weeks after the FBI raided his daughter's home, and that of one of her associates.

Weldon did not respond to e-mails and phone requests to be interviewed or comment for this article. But in a 2006 interview, before the FBI probe was public, Weldon spoke enthusiastically about setting up a "front company" to work with the Russian arms agency, Rosoboronexport. Weldon hoped this company could sell weapons to the Middle East, and other regions, particularly to countries where the U.S. has strained relations. He claimed the director of Rosoboronexport approached him to work with "an American company that would act as a front for weapons these nations want to buy."

Weldon called the proposal an "unbelievable offer."

The administration, he acknowledged at the time, did not welcome the idea of an American company selling Russian weapons to potentially unfriendly countries. But two years later, Weldon, now a private citizen and chief strategic officer for Defense Solutions, appears to be working on precisely that sort of deal. And whether illegal or not, Defense Solutions' business represents a new phenomenon in the international arms trade business.

In years past arms brokers -- firms or individuals who serve as middlemen to facilitate weapons sales between countries -- were largely the stuff of spy thrillers. Unlike traditional American defense companies, like Lockheed Martin or Boeing, which typically sell weapons directly to NATO countries or other governments regarded as friendly to the United States, brokers are often small outfits run by people with sometimes questionable experience and reputations they will sell to anyone. One of the most infamous arms brokers, a Russian named Viktor Bout, is charged by the United States, United Nations, Interpol and others of funneling arms to terrorists and rebels around the world. He was recently arrested in Thailand. The United States is requesting his extradition on charges of supplying arms to a terrorist organization.

Two Marines lower the trim vane on the front of an Iraqi BMP-1 mechanized infantry combat vehicle that was captured during Operation Desert Storm. The American defense consulting firm Defense Solutions has proposed refurbishing Libya's aging fleet of BMP-1s. Defense Solutions denies drafting a sales proposal to Libya.

But ironically, Iraq has fueled a new market for these professional middlemen; the United States is funneling billions of dollars into modernizing Iraq's army so that the country's government can fend for itself after coalition troops withdraw. And Iraq's largely Soviet-equipped military is a natural market for Eastern European countries brimming with old or out-of-date equipment they would like to unload. The middlemen, in these cases, serve a key role by allowing the U.S. government to do business with an American company, which in turn buys equipment from Eastern Bloc countries in deals worth hundreds of millions of dollars, much of it financed with U.S. taxpayer dollars.

One of Defense Solutions' sales -- a deal to sell Hungarian-owed T-72 tanks to Iraq in 2005 -- was typical of these new foreign military sales. But on the more questionable side is the company's plans to work with Rosoboronexport, which is barred from doing business with the U.S. government, and Libya, which is still on the State Department's arms embargo list.

The Eastern European-Middle East arms-brokering business, while in some cases sanctioned by the U.S. government, has run into problems, including outright corruption and quality. Defense contractor Dale Stoffel, the president of Wye Oak Technology, and another American were gunned down in Iraq in December 2004 after Stoffel alleged that the Iraqi Ministry of Defense was involved in a kickback scheme. Like Defense Solutions, the company Stoffel worked for was refurbishing the Iraq's army Eastern Bloc equipment.

Another problem is quality. Weapons from the former Soviet Bloc, which the U.S. military euphemistically calls "nonstandard equipment," have been flagged as substandard, acknowledges Brigadier General Charles Luckey, who is in charge of security assistance at Multi-National Security Transition Command-Iraq. In an interview from Iraq, Brigadier General Luckey said: "One of the frustrating things about buying nonstandard [weapons], is that I'm the guy who has to deal with the fact that some broker I've never heard of allowed weapons to get to Iraq before they were inspected."

Defense Solutions is carving a new niche in the arms trade, selling Soviet-made weapons to Middle Eastern countries like Afghanistan and Iraq. Defense Solutions sold Hungarian-owed T-72 tanks to Iraq in 2005.

In one high-profile case, Iraqi officials alleged that a corrupt firm sold them $400 million in shoddy helicopters from Poland. More recently, a company led by a 21-year-old and a former masseur was offered a U.S. government contract worth nearly $300 million to sell ammunition to Afghanistan. The ammunition turned out to be outdated and of dubious origin and several people connected with the company have been indicted. A congressional investigation concluded that the company, which was on a State Department watch list, was able to take advantage of regulatory loopholes by using middlemen.

For those concerned about illicit arms trade, this new wave of weapons deals is rife with the potential for corruption and abuse, but for companies eager to pursue markets once regarded as dubious, it represents a lucrative business opportunity. The problem in these cases, according to those familiar with arms sales, is that it's no longer clear what's legal and what's not.

Rachel Stohl, an expert on international arms trade and a senior analyst at Center for Defense Information, says that in many ways, the rush to equip Iraq has led the United States to throw caution to the wind. She points to a report by the Government Accountability Office last year that found that some 190,000 weapons sold to Iraq have gone missing. "I think the reality is we won't know, until way after the fact, about all of these irregularities with the Iraq weapons provision program," she said. "We were providing them all these assault rifles that have gone missing. Why? They were not following the standard procedures that were in place."

But Iraq and Afghanistan aren't the only markets available to arms brokers like Defense Solutions. The gradual normalization of relations with Libya opens another door into a quasi-legal area of sales.

Like Iraq, Libya has a substantial arsenal of Soviet-origin military weapons, offering a potential market for brokers working with Russia and other former Soviet states. But even when there's not an outright ban, sales to the Middle East are often fraught with controversy, particularly to countries like Libya, which was under international sanction for more than a decade. Even as sanctions against it have been lifted, European companies proposing to sell arms to Libya have faced steep criticism, particularly since the country is still ruled by dictator Muammar Gaddafi, who took power in a military coup in 1969.

While the United States lifted Libya's "state sponsor of terrorism" designation in 2006, other restrictions, such as on the sale of arms, remain in place. A State Department spokesperson confirmed that exports of "lethal munitions" to Libya, such as tanks or related equipment, are still banned, although sales of nonlethal equipment are now allowed on a case-by-case basis.

In late March, Weldon traveled to Libya for a weeklong trip at the invitation of the Gaddafi Foundation, a group run by the son of Libya's leader, and the chairman of Libya's foreign affairs committee, according to the report he sent to Defense Solutions (.pdf), a copy of which was obtained by Wired.com. The trip reports states: "Agreement reached for Weldon to quickly return to Libya for meetings with son [of Libyan leader Gaddafi] Morti regarding defense and security cooperation."

A document dated April 16, just two weeks after Weldon's trip, outlines Defense Solutions' proposal to Libya to refurbish the country's fleet of armored vehicles, including its T-72 tanks, BMP-1 infantry fighting vehicles, and BTR-60 armored personnel carriers. A copy of the sales proposal, also provided to Wired.com, is on Defense Solutions' letterhead, appears to bear the signature of company CEO Timothy Ringgold, and is addressed to Libya's defense procurement council. "Defense Solutions is committed to delivering a full end-to-end solution to its clients," the proposal states. "Besides refurbishing these vehicles, we are capable of providing a full logistics support package, including a two year supply of spare parts, maintenance and repair services, and operator, maintenance, and repair training."

In an interview with Wired.com, Ringgold admitted that he's interested in doing business in Libya and confirms receiving Weldon's trip report from Libya, but denies drafting or signing an arms-sale proposal. "I've never made such a document to Libya," Ringgold insisted, after being read the proposal, and told that his signature is on it.

In addition to the Libyan arms-deal document, Wired.com has also reviewed copies of e-mails from Ringgold discussing the Libyan deal.

While Ringgold denies proposing an arms sale to Libya, he is open about speaking with Rosoboronexport, which has been on a U.S. government sanctions list since 2006, after the Russian state agency allegedly violated the Iran and Syria Nonproliferation Act. An April e-mail provided to Wired.com describes Ringgold, Weldon and Stephan Minikes, a senior advisor to Defense Solutions and a former ambassador, meeting with Rosoboronexport. The conversations included a number of potential deals, including supplying Mi-17 helicopters to Afghanistan and spare parts for Iraq's infantry fighting vehicles. Ringgold wrote to colleagues following the visit, describing the meetings as a "spectacular success," saying the Russian agency "has the ability to undercut all cost proposals from brokers."

Ringgold confirmed those discussions and said that his company has sought to do business with Rosoboronexport. Asked whether Ringgold considers his dealings with Russia to be legal, he argued that U.S. companies could work with Rosoboronexport on a "case-by-case" basis. "The particular purpose of the meeting we had -- and I want to be crystal clear -- was in response to a U.S. government requirement," he said.

A number of officials at the State Department and in the Pentagon, when contacted for this article, could not say whether working with Rosoboronexport is legal or not. A Pentagon spokeswoman said she was familiar with the issue, but deferred the question to the State Department. When asked about Rosoboronexport's status on the blacklist, John Herzberg, a State Department spokesman replied: "What's on there is on there."

Asked whether, given the ban, there was any way a company could legally work with Rosoboronexport, as Ringgold suggested, Herzberg provided an equivocal answer. "At the stage of the process we're at, I'm unable to give you an answer," he said. "You can try elsewhere in government, and maybe they'll be braver than me."

In an interview from Iraq, General Luckey conceded it was a murky area, but said, "My understanding is they are currently on our no-go list."

The confusion over debarred parties has even led the U.S. government into its own legal tangles, according to Jim McAleese, a Washington attorney who specializes in government contracting and foreign military sales. Because the Russian government violated U.S. nonproliferation laws, even NASA had to go to Congress to ensure it could work with Russia on Soyuz flights to the international space station. "What I'm warning you about is, don't be surprised by the confusion," McAleese said. "There are a whole bunch of different statutes that were adopted piecemeal and were never intended to be reconciled."

But it's the very ambiguity of the law that troubles those who monitor export control. "It's highly unusual to do anything with the Russians, particularly Rosoboronexport," said Scott Jones, director of Export Control Programs at the Center for International Trade and Security at the University of Georgia.

Legal or not, reputable American companies simply don't want to work with banned entities, Jones said, for fear of risking their reputations and business. "Even if it's not an outright prohibition, most companies don't want to put themselves in a liability situation that has really bad PR … and they stay away from it," Jones said. "But if that's your business, pimping out arms from the U.S. or Russia, that's the way it works, and you push as much as possible."

Finding any U.S. defense company working with the Russian government at this point would be "remarkable," Jones added.

In the meantime, the future for Weldon is unclear. The FBI investigation continues and Weldon's former chief of staff recently pleaded guilty to a conspiracy charge and is cooperating with the government, notes Melanie Sloan, the executive director of Citizens for Responsibility and Ethics in Washington, which filed a complaint against Weldon in 2004. Sloan speculated that Weldon may be charged with "honest service fraud" for misusing his office for personal gain. "It's an easier standard than bribery," she said. "I wouldn't be surprised [if he's charged] with bribery, but I think it will be honest services fraud."

Ringgold insists that he and Weldon are on the right side of the law. "Everything we do is in strict compliance with international and U.S. law and we operate only in the best interests of the U.S. government," he said. "I didn't serve 30 years in the United States Army to throw that away on a whim."

Asked if Weldon is still working for the company, Ringgold replied: "Absolutely, proudly so."