Real ID Online? New Federal Online Identity Plan Raises Privacy and Free Speech Concerns – EFF

Coauthored by Seth Schoen
The White House recently released a draft of a troubling plan titled “National Strategy for Trusted Identities in Cyberspace” (NSTIC). In previous iterations, the project was known as the “National Strategy for Secure Online Transactions” and emphasized, reasonably, the private sector’s development of technologies to secure sensitive online transactions. But the recent shift to “Trusted Identities in Cyberspace” reflects a radical — and concerning — expansion of the project’s scope.
The draft NSTIC now calls for pervasive, authenticated digital IDs and makes scant mention of the unprecedented threat such a scheme would pose to privacy and free speech online. And while the draft NSTIC “does not advocate for the establishment of a national identification card” (p. 6), it’s far from clear that it won’t take us dangerously far down that road. Because the draft NSTIC is vague about many basic points, the White House must proceed with caution and avoid rushing past the risks that lay ahead. Here are some of our concerns.
Probably the biggest conceptual problem is that the draft NSTIC seems to place unquestioning faith in authentication — a system of proving one’s identity — as an approach to solving Internet security problems. Even leaving aside the civil liberties risks of pervasive online authentication, computer security experts question this emphasis. As prominent researcher Steven Bellovin notes:
The biggest problem [for Internet security] was and is buggy code. All the authentication in the world won’t stop a bad guy who goes around the authentication system, either by finding bugs exploitable before authentication is performed, finding bugs in the authentication system itself, or by hijacking your system and abusing the authenticated connection set up by the legitimate user. All of these attacks have been known for years.
The draft NSTIC says that, instead of a national ID card, it “seeks to establish an ecosystem of interoperable identity service providers and relying parties where individuals have the choice of different credentials or a single credential for different types of online transactions,” which can be obtained “from either public or private sector identity providers.” (p. 6) In other words, the governments want a lot of different companies or organizations to be able to do the task of confirming that a person on the Internet is who he or she claims to be.
Decentralized or federated ID management systems are possible, but like all ID systems, they definitely pose significant privacy issues. 1 There’s little discussion of these issues, and in particular, there’s no attention to how multiple ID’s might be linked together under a single umbrella credential. A National Academies study, Who Goes There?: Authentication Through the Lens of Privacy, warned that multiple, separate, unlinkable credentials are better for both security and privacy (pp. 125-132). Yet the draft NSTIC doesn’t discuss in any depth how to prevent or minimize linkage of our online IDs, which would seem much easier online than offline, and fails to discuss or refer to academic work on unlinkable credentials (such as that of Stefan Brands, or Jan Camenisch and Anna Lysyanskaya).
Providing a uniform online ID system could pressure providers to require more ID than necessary. The video game company Blizzard, for example, recently indicated it would implement a verified ID requirement for its forums before walking back the proposal only after widespread, outspoken criticism from users.
Pervasive online ID could likewise encourage lawmakers to enact access restrictions for online services, from paying taxes to using libraries and beyond. Website operators have argued persuasively that they cannot be expected to tell exactly who is visiting their sites, but that could change with a new online ID mechanism. Massachusetts recently adopted an overly broad online obscenity law; it takes little imagination to believe states would require NSTIC implementation individuals to be able to access content somehow deemed to be “objectionable.”
The draft NSTIC “envisions” that a blogger will use “a smart identity card from her home state” to “authenticate herself for . . . [a]nonymously posting blog entries.” (p. 4) But how is her blog anonymous when it’s directly associated with a state-issued ID card?
The proposal mistakenly conflates trusting a third party to not reveal your identity with actual anonymity — where third parties don’t know your identity. When Thomas Paine anonymously published Common Sense in 1776, he didn’t secretly register with the British Crown.
Indeed, the draft NSTIC barely recognizes the value of anonymous speech, whether in public postings or private email, or anonymous browsing via systems like Tor. Nor does it address issues about re-identification, e.g. the ability to take different sets of de-identified data and link them so as to re-identify individuals.
Bellovin credits the draft NSTIC for suggesting the use of attribute credentials rather than identity credentials — that is, using credentials that could establish that you’re authorized to do something without saying who you are. But, as he puts it, “We need ways to discourage collection of identity information unless identity is actually needed to deliver the requested service,” and the draft NSTIC doesn’t seem to address this.
The draft NSTIC seems to presuppose widespread use of smart ID cards. In one example, it envisions that an individual will use “a smart identity card from her home state” to “authenticate herself for a variety of online services,” presumably modeled upon driver’s licenses. (p. 4)
One major concern, acknowledged briefly in the draft, is whether people’s computers can really be secure enough to be used for these purposes — smart ID cards or no smart ID cards. As noted above, the vast majority of privacy and authentication vulnerabilities stem from buggy software, and when a computer is trivial to compromise, its users’ credentials are easy to steal. The NSTIC proposal could, in fact, decrease user privacy and enable identity theft: once a user’s digital ID is stolen, it could be used to both pose as the user and access all the user’s accounts and data.
Consider, for example, the proposal to use a state digital ID card to access health records and online banking. What happens next time you lose your wallet?
Furthermore, by consolidating your credentials, the NSTIC plan may provide the government with a centralized means of surveilling your online accounts. And if the government issues your digital ID itself, it won’t even need to approach a third party with any kind of legal process before surveilling you.
The draft NSTIC also mentions the development of a public-key infrastructure (PKI). (pp. 15, 27) We support good, widespread encryption, which could allow people to get correct public keys reliably and possibly cut down on phishing, spam, fraud, and pretexting. But as Bruce Schneier and Carl Ellison have explained, doing PKI properly isn’t easy.2 All of their concerns apply, in some form, to the NSTIC proposal.
Another concern that’s emerged recently is whether governments could coerce certificate authorities in a PKI to issue false credentials in order to facilitate surveillance. Chris Soghoian and Sid Stamm have reported on an industry claim that governments could get “court orders” giving them access to falsified cryptographic credentials. This threat seems greater if the government itself is running the PKI.
Much more could be said. The NSTIC is only a draft, and the Department of Homeland Security and the White House sought public input online through July 19th. Because of the importance of this issue, EFF has joined with a coalition of concerned civil liberties group to ask the Administrations for a longer comment period and a way to submit more detailed comments. We hope and expect that this will be only the beginning of a public debate about ID management online.
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