And how is entering a discussion going to make this happen faster?  They will do this whether they (the powers that be) want to or not.  By offering dialogue at least it leaves open discussion to not let this happen.  Just sitting back and not being proactive and pretending the government is not interested is not going to achieve anything.

And again, even if they did deem something like localbitcoins illegal, it is not enforceable.  


+1 
This is exactly what I am talking about. 

The only real post of substance here other than people who really seem to have no idea how the world works and are stuck inside their little bitcoin bubble.

To the people bashing this you are either just mindless anarchists or just flat out dumb.

What the Bitcoin Foundation is trying to do is get the US powers that be to understand bitcoin and not stiffen bitcoin businesses in the US.

Unfortunately the US is a land of laws, and bitcoin can attempt to explain laws that should be put in to place that won't stop adaptation.

Bitcoin can go on without the US saying so, but it can also become successful quickly if the US adapts sensible laws.

Regardless, bitcoin will live whether the US attempts to thwart it or not.

More info: http://www.consumer.ftc.gov/articles/0221-billed-merchandise-you-never-received-heres-what-do

The example on the site is hilarious:

Should you still file if you payed in bitcoins?  How does this process work - how can you prove a bitcoin payment?  Show the blockchain transaction?

Thanks, tendered to AMC - TENDER - feels very worrisome but I trust ken.  

Are there any other precautions I should take.  I have set up my bitfunder with a bitcoin address that I control and can sign from.

EDIT:  And just to be absolutely sure, is this the address that is important?

Can anyone inform me if Ken has officially announced what to do with our shares on bitfunder?

I know he has an exchange in the works but with the looming Nov 1 deadline I need to get my bitfunder shares out ASAP!

A friend of mine has a B&M e-cig shop.  I have been trying to convince him to accept bitcoin but will not budge, won't even let me just add the option to his site.  

So I decided to do a test run and show him if there is demand or not - he agreed he would allow me to implement it to his website if some interest was shown.  

I have created a Coinbase merchant account and will list some of his popular items here (creating these coinbase pages for each individual item is a PITA!).

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Looking for someone who would be able to use reddits source code and familiar with the inner workings of the bitcointip bot.  

Best form of contact is on #bitcoin nick = chsados or a PM

Somehow I totally missed the escrow part 

Well, wish I had the funds!  Happy bidding people.

Has OP in any way shape or form proven he owns this site?

This definitely should be an escrowed deal.

Have you ran


best I can offer, I have only just started using linux.  Electrum installed without a hitch on my recent fresh install of 13.10

I think the honey badger mascot thing is ridiculous to be honest.

And why should a currency need a mascot in the first place?

Classic!

Does this effect any bitcoin address created from a wallet on Linux?

Insecurities in the Linux /dev/random

New paper: "Security Analysis of Pseudo-Random Number Generators with Input: /dev/random is not Robust, by Yevgeniy Dodis, David Pointcheval, Sylvain Ruhault, Damien Vergnaud, and Daniel Wichs.

    Abstract: A pseudo-random number generator (PRNG) is a deterministic algorithm that produces numbers whose distribution is indistinguishable from uniform. A formal security model for PRNGs with input was proposed in 2005 by Barak and Halevi (BH). This model involves an internal state that is refreshed with a (potentially biased) external random source, and a cryptographic function that outputs random numbers from the continually internal state. In this work we extend the BH model to also include a new security property capturing how it should accumulate the entropy of the input data into the internal state after state compromise. This property states that a good PRNG should be able to eventually recover from compromise even if the entropy is injected into the system at a very slow pace, and expresses the real-life expected behavior of existing PRNG designs. Unfortunately, we show that neither the model nor the specific PRNG construction proposed by Barak and Halevi meet this new property, despite meeting a weaker robustness notion introduced by BH. From a practical side, we also give a precise assessment of the security of the two Linux PRNGs, /dev/random and /dev/urandom. In particular, we show several attacks proving that these PRNGs are not robust according to our definition, and do not accumulate entropy properly. These attacks are due to the vulnerabilities of the entropy estimator and the internal mixing function of the Linux PRNGs. These attacks against the Linux PRNG show that it does not satisfy the "robustness" notion of security, but it remains unclear if these attacks lead to actual exploitable vulnerabilities in practice. Finally, we propose a simple and very efficient PRNG construction that is provably robust in our new and stronger adversarial model. We present benchmarks between this construction and the Linux PRNG that show that this construction is on average more efficient when recovering from a compromised internal state and when generating cryptographic keys. We therefore recommend to use this construction whenever a PRNG with input is used for cryptography.

In order for the SQRL domain to be incorrect the website would have had to been compromised - so it would be the same situation if someone used a regular username/password.

So it sounds like a warning would be shown saying "hey, this is attempting to log you into a site you did not mean to."

Is there a youtube video explaining/showing all of this?

Is mastercoin an answer to colored coins?

Are you able to post a video up on youtube?  Would love to see this in video format.

Would this be able to be ran on linux - specificity a raspberry pie?

Have you guys looked into this proposal of using QR codes for secure and anonymous logins?  This was theorized by Steve Gibson and the original white paper can be found here. 

A short video describing SQRL can be viewed here: http://youtu.be/ZrQboo3pA10

This seems really interesting and I think a bitcoin address could be used as a user's master key.




What happened behind the scenes?

• The QR code presented near the login prompt contains the URL of the authentication service for the site. The URL includes a securely generated long random number so that every presentation of the login page displays a different QR code. (In crypto circles this long random number is known as a “nonce.”)
• The smartphone's SQRL authentication app cryptographically hashes the domain name of the site keyed by the user's master key to produce a site-specific public key pair.
• The app cryptographically signs the entire URL contained in the QR code using the site-specific private key. Since the URL includes a secure long random number (the nonce), the signature is unique for that site and QR code.
• The app issues a secure HTTPS POST query to the QR code's URL, which is the authentication service for the site. The POST provides the site-specific public key and the matching cryptographic signature of the QR code's URL.
• The authenticating web site receives and acknowledges the POST query by returning a standard HTTP “200 OK” with no other content. The SQRL app acknowledges the successful submission of the user-signed QR code.
• The authenticating site has the URL containing the nonce which came back from the login page via the user's smartphone. It also has a cryptographic signature of that URL, and the user's site-specific public key. It uses the public key to verify that the signature is valid for the URL. This confirms that the user who produced the signature used the private key corresponding to the public key. After verifying the signature, the authenticating site recognizes the now-authenticated user by their site-specific public key.

Anonymous Identification & Authentication:

• SQRL ID:  Visitors to a website are uniquely identified by an absolutely anonymous SQRL ID. Their “SQRL ID” is simply their public key, described above, a 256-bit number. The same visitor always presents the same ID every time they visit the same site. But no two visitors will ever have the same ID. Thus a single website can uniquely and anonymously identify every one of their visitors.
• SQRL IDs are both user AND site specific: Although the same user always presents the same ID to the same site, they present an entirely different ID to every other site they visit. There is NO WAY TO ASSOCIATE the SQRL ID presented to one site with those presented to any other sites. In other words, there is absolutely no cross-site coupling of identity. Users are free to use their SQRL identity anywhere and everywhere because every site receives its own unique SQRL ID.
• No annoying account creation: Suppose you wish to simply comment on a blog posting. Rather than going through the annoying process of “creating an account” to uniquely identify yourself to a new website (which such websites know causes them to lose valuable feedback traffic), you can login using your SQRL identity. If the site hasn't encountered your SQRL ID before, it might prompt you for a “handle name” to use for your postings. But either way, you immediately have an absolutely secure and unique identity on that system where no one can possibly impersonate you, and any time you ever return, you will be immediately and uniquely known. No account, no usernames or passwords. Nothing to remember or to forget. Your SQRL identity eliminates all of that.

Anonymous Identification & Authentication:

• Identification vs Authentication:  SQRL-enabled websites have only your unique SQRL ID to disclose, and it is useful only to that single site since every users SQRL ID is automatically unique for every site they visit. There need not be any username or password for sites to have compromised, lost or stolen. Your SQRL ID does not authenticate your identity, it only identifies you to that single website. Authentication requires the SQRL smartphone app to cryptographically sign a long random number and return it with your SQRL ID (your public key). Thus, even if a hacker were to obtain your stored SQRL ID, it is useless for impersonating you—even to that one site—because the private key required to create the signature never leaves your smartphone.
• No keyboard interaction:  Imagine that you want to login to a computer at an unsafe location such as a library or a hotel. With SQRL, your login occurs without entering any personal credential information into the computer. You provide no username or password that might be captured by a keystroke logger or resident malware. The website issues an “SQRL authentication challenge” in the form of a unique SQRL graphic code. If you have an SQRL smartphone app, it takes up the challenge and sends the website a unique challenge response that can only have come from you. The website then logs you in when you click “Log in” under the still-empty login form. From the standpoint of that computer—and anything it might contain that's attempting to spy on you—you are magically logged in without your credentials ever appearing or passing through. Your smartphone's SQRL application saw the site's SQRL code, instantly identified you to the site, and provided cryptographic proof that the person who just clicked the “Log in” button . . . is you.
• No “shared secrets” with websites:  Six-digit time-based authenticators are based upon a cryptographic secret known only (we hope) to your smartphone and the authenticating website. This allows the website and your phone to agree upon which six-digits will be shown at any time. While this has the benefit of always changing, it repeats the username and password problem of needing to always be kept secret . . . which websites continuously demonstrate is beyond them. (And remember, the employees of those websites do have access to your credentials.) Also like passwords, because they are not truly secure, you must employ a separate and unique authentication sequence for every website you use. If this were to become popular and widespread, you would soon be scrolling through hundreds of six-digit numbers to find the right one.
• Out-of-band authentication:  In the context of an untrusted computer, we mentioned above how website visitors were almost magically logged in without touching the computer's keyboard. This is one aspect of an important security principle known as “out of band.” The principle is that it is generally more secure not to send all aspects of a secure communication through a single channel because the security of that channel may be compromised. Entering your username, password, and one-time password all through the same keyboard is worrisome “all in band” authentication. Difficult though it might be to compromise the security of any single channel, it is vastly more difficult to simultaneously compromise two very different forms of communication. Since SQRL uses a smartphone's connection to the internet, perhaps even a cellular carrier, it avoids reusing most or all of the local computer's channel. Authentication often occurs completely “out of band”, and thus invisible to any intruder monitoring the computer's communications.
• No third-party involvement:  In this era of pervasive government surveillance and US NSA coercion, who is going to trust any third-party with their identity? Other identity systems and solutions attempt to “federate” trust by creating a role for themselves as a third party with whom you establish a separate trust relationship. Then the authenticating website asks that third party to verify your identity on your behalf. It would be one thing if there were no alternative. But this page, and the pages that follow, demonstrate that secure and practical anonymous identification can use an entirely first-party protocol while delivering extreme ease of use.

The LACK of third-party involvement

• The use of a third-party “middleman” transfers much of the responsibility for the management of your online identity to an external facility. In an era of secret national security letters compelling the disclosure of whatever the government desires, that's a serious liability (as mentioned above), but it can also be a significant benefit: If your smartphone escapes from your control, you need only tell the third-party to cancel the phone's authentication authority and you're immediately protected from malicious use of your smartphone's identity assertion.
• This SQRL system concentrates ALL authentication authority into the smartphone. The benefit is that no one else has the keys to your online identity.  No one.  But the liability is that YOU are then absolutely responsible for maintaining the security of your online identity.

This is a serious issue that needed to be addressed.  Our solution is to provide the user with a conceptually simple set of tools to dramatically ease the burden of assuming and managing this responsibility. As subsequent pages detail, the system provides extensive cloning, backup, local password protection and reset capability.

Hold on a second . . .  We send the website a signed bunch of gibberish?  That's it?
Yes.  And that's exactly the point.  SQRL provides absolutely anonymous identity authentication (IA). Users are identified only by a random “opaque token” and each unique combination of user and website creates a unique identity token. Thus, every user presents a unique identity to every website they visit. It is up to the user and the website to then (optionally) bind the user's unique SQRL identity to a real-world account on the website.

For example, Amazon's account management might have an option to associate a logged in user with their Amazon SQRL identity. So Amazon would present a unique SQRL code on the account management page. The user simply snaps it with their smartphone's SQRL app and now Amazon can add their SQRL ID to their account. From now on, the user can login to Amazon anywhere with vastly improved security just that easily.

And it would probably work the other way around too: Amazon's login page would present traditional login fields and a SQRL code on the side. An existing Amazon user who is establishing their SQRL identity snaps the SQRL code with their new smartphone app and Amazon replies that it does not recognize the user. If they wish to create a new account, they may do so here, or if they are an existing user, please use traditional login one last time to associate their new SQRL identity with their existing Amazon account.

Defending against the dark forces
Why we prominently display the domain name BEFORE authenticating:  The smartphone has no way of knowing the website the user is visiting. It only receives the domain contained in the QR code displayed by that page. In the "Evil Website" attack (also discussed on the attacks page), a malicious website pretends to offer an SQRL login for itself (www.we-are-evil.com), but instead it obtains and displays a login QR code from some other domain (www.amazon.com) where an SQRL user may be known. The SQRL app always identifies and authenticates its user to the domain contained within the (human unreadable) QR code. So an unwitting user, who didn't know the domain they were authenticating to, would be logging themselves into a session initiated and controlled by the Evil Website, thus allowing the Evil Website to impersonate them.

Note that even in this instance, none of the user's login credentials ever become known to the Evil Website. The Evil Website only gets a spontaneously logged-in session (though that's clearly not a good thing!)

This risk can be easily thwarted, however, simply by having the user's smartphone first prominently display the domain name it will authenticate to only if the user first gives it permission. The user knows they are visiting “www.we-are-evil.com.” So if their phone asks for permission to login to “www.amazon.com” they just say no.

Trusting the app: Though it should go without saying, it's better to say it: Until SQRL support is moved into the underlying smartphone OS, and is then curated perhaps more carefully, users will be responsible for choosing and installing an SQRL client into their smartphones. As the SQRL system gains in popularity, it is foreseeable that malicious developers might create malicious applications to steal their users' credentials. This is not a problem that's in any way unique to SQRL. Any sort of identity or password manager needs to be carefully vetted before it is entrusted with important information. The standard advice here is to stick with the herd and go with the solution that's been most thoroughly examined, checked out, and proven.


Three Ways to Go . . . smartphone optional:
(And we solve the XKCD problem above!) Although the original inspiration for the development of this system was a smartphone scanning a QR code on a website's login page, a small addition to that model enables two more significant modes of operation: Simply make the QR code image also a clickable link to the same URL that's encoded into the QR code. This yields three ways to login:

• Scan the code with a smartphone:  Using the model described above, a user's smartphone scans the QR code appearing on a website's login page and the user is logged into that site.
• TAP THE CODE on a smartphone:  To login to a website ON the smartphone, when the visual SQRL code is also a URL-style link (using sqrl:// as the scheme) the SQRL app installed in the smartphone will receive that link and securely log the user into the site on the phone.
• Click the code on a desktop or laptop screen:  To use the SQRL system on any desktop or laptop system, a desktop SQRL application would be installed and would register itself to receive sqrl:// links. (This is similar to the way an email program registers to receive mailto: links.) This allows the same solution to be used by users on their desktop that they are using on their smartphones. When any website offers an SQRL code the user just clicks on the code with their mouse cursor and the locally installed SQRL app will pop-up, prompt for their SQRL password, confirm the domain, and then log them in.

Practical Considerations:

• Open & free, as it should be:  The component techniques and technologies employed by this solution are all well known, well tested, well understood, unencumbered by patents, and exist in the public domain. The entire system can be readily assembled from 100% open source algorithms, packages and libraries.
• The chicken & egg problem:  There was a time before the Internet, when people asked: If there are no high-quality websites no one will use the Internet; and if no one is using the Internet no one will bother creating high-quality websites. Somehow it happened anyway. We hope and expect that SQRL login will be like that. Once we have established the required interoperability standards, people WILL create free smartphone SQRL clients—probably many. And as websites begin to offer SQRL login as a side-by-side alternative to the traditional username and password, SQRL popularity will grow. Why would anyone NOT use it when it's free, perfect, and just works? Users will want it because it immediately eliminates the most annoying aspect of the Internet. Website visitors will demand it and websites will soon see that they are losing visitors by not offering the instantaneous SQRL option. Now that we have such a terrific egg, it's difficult to see what's going to keep it from hatching, surviving, and growing.
  
• NSA & NIST-free cryptography:  The recommended implementation of this system leverages several unique characteristics of well-known cryptographer Dr. Daniel J. Bernstein's (DJB) carefully designed twisted Edward's curve digital signature algorithm (EdDSA). In his extensive and complete papers (linked herein) Bernstein explains the detailed derivation and properties of his “25519” elliptic curve. Importantly, there are no mysterious constants or “magic numbers” of unknown provenance. Dan has a long and well-known history of fighting for cryptographic freedom. In 1995, while a student at the University of California, Berkeley, Dan brought a lawsuit against the United States (represented by the EFF) challenging the restrictions on the export of cryptography . . . because he wanted to publish a paper and associated source code of this “Snuffle” encryption system. The ruling in the case declared software as protected speech under the First Amendment, and national restrictions on encryption software were overturned. (He won.) Please see the Detailed Crypto Architecture page for full detail and discussion.

The following pages continue to describe this SQRL system:

• Introduction & overview
• The user's view of the application
• Detailed crypto architecture
• Web server responsibilities
• Attacks, weaknesses, vulnerabilities
• Implementation details
• Implementation resources
• Projects and finished applications
• Room for growth: More than auth?
• Other related QR code login work
• Frequently Asked SQRL Questions
• Feedback about SQRL & these pages