3
votes
2answers
143 views

How to prove flyer was (not) authored by specific person?

Let's say we create a flyer in some desktop publishing software (e.g., InDesign, Illustrator), physically print it and post it somewhere. We don't want inauthentic claims of authorship. Is there a ...
0
votes
3answers
69 views

Recommendation for identity system

I want to develop a system, something like a comment system for a website, that ensures I know who is posting comments. The content that is exchanged is not valuable and does not need to be encrypted, ...
3
votes
3answers
137 views

What are some cards that are vulnerable to RFID theft?

I heard that some credit cards are vulnerable to RFID scanning and thus identity theft. I am concerned about my cards and I would like to learn which cards are vulnerable to such abuse? Are any of ...
6
votes
4answers
1k views

Is 'Bring your own Identity' as the only authentication option a valid practice?

This question is mainly aimed at OpenID Connect, when it is fully realized. I understand the aversion to signing in with a social networking site, but from what I understand about OIDC, its supposed ...
1
vote
1answer
62 views

Any known protocol for establishing trust between an inherently untrustworthy source and a server without a 3rd party?

Is there any kind of protocol, scheme, or theoretical paper out there that implements or examines the problem of establishing trust between two parties (communicating, listening) where the ...
8
votes
2answers
3k views

Role Based Authorization vs. Claim Based Authorization

What is the difference between "role based authorization" and "claim based authorization"? Under which circumstances would it be appropriate to implement each of these authorization models?
1
vote
3answers
553 views

Can Paypal be used to verify a user's identity?

As I use my Paypal account for various online services, I noticed that vendors integrate differently with Paypal for on-demand payment, and scheduled payments. I also noticed that Paypal offers a ...
5
votes
1answer
414 views

Are there risks of using the same OpenID provider for sites with different security levels?

I always use the same OpenID provider (Google, with a strong unique pw and 2-factor auth) in every site that supports it, without thinking twice. It's my understanding that, as long as the provider is ...
17
votes
6answers
3k views

How to verify that someone is who they say they are online?

I am working on an online job application web app and the question has come up about how we will verify that someone submitting an application is who they say they are. For example, we don't want ...
0
votes
1answer
1k views

What are the potential vulnerabilities in a SAML-based SSO approach?

What level of access would an attacker need to obtain to compromise a SAML-based SSO system? Would stealing the private key used to sign SAML requests be enough? What if an attacker had root on the ...
0
votes
2answers
194 views

Verifying users location & authenticity

I am builduing a business to business website, and users are able to sign up with a personal profile and create a business (like linkedin). I need to verify the following: Business Name ...
3
votes
4answers
1k views

Can SMS text messages be used to verify a person's unique identity through a short code system?

We run online contests and want to eradicate cheating (yeah right), or at least mitigate it. I've asked the question regarding user experience here: ...
1
vote
1answer
358 views

What does a Yadis / XRDS discovery session “look like” to the end user? How does it work? Is it relevant?

I can't wrap my head around how Yadis / XRDS would be used by a typical end user, or how it works so transparently? Considering that this technology isn't adopted by mainstream IDPs that makes me ...
8
votes
2answers
2k views

Benefits and drawbacks of giving an Administrator two accounts for elevated rights and another for daily use, such as email

Microsoft has long promoted the need to separate administrative accounts from regular use accounts, as shown with this guidance MSFT even went to far as create ADMINSDUser rights to put ...
9
votes
3answers
919 views

Length of CSRF Token

Is there any standard length of the token which should be used while generating the random tokens? Should we use the same standard which we use for generating Session IDs?
7
votes
1answer
3k views

Ways to sign gpg public key so it is trusted?

I have a service through SSL which gives the user a code for a specific reason. I want to sign the code with the web server's private key (gpg --clearsign) and send the signed code along so that they ...
4
votes
3answers
655 views

Web Certificate invalidation - You might be connecting to a website that is pretending to be [Site name]

Recently while trying to log-in to Facebook this notification starts to appear: At first I ignored it (by pressing Continue), but it started to popup every time I navigate through the website! I ...
8
votes
5answers
305 views

How to verify new accounts against a known persons database?

I need to (try to) solve the problem of new account creation for a patient portal for a medical records system (electronic health record). That is, a way to activate a patient online and match her ...
8
votes
7answers
331 views

Aren't permanantly logged in accounts inherently insecure?

The basic premise behind a "keep me logged in until I log out" feature is a cookie is stored with some identifier that is used to log the user in again when returning to the site. While these ...
21
votes
5answers
2k views

Should usernames be kept secret?

Help me settle an discussion among colleagues and guide future design: Even in a high impact scenario: e.g. protecting payment application or government gateway but in an Internet accessible ...
15
votes
4answers
254 views

Are malicious relying parties able to abuse OpenID logins?

if I logon with OpenID into a website (crafted by attackers/hackers) I want to know how much damage can they do to me? Are they able to steal my contact info, name, etc (assuming I'm using Gmail ...
3
votes
3answers
2k views

What is the exact difference between SAMLp and WS-Trust?

They seem to be similar on the surface, but I'm not sure how deep the differences are. Can someone explain to me the difference between SAMLp and WS-Trust? ADFSv2 gives me a choice between these ...