Tagged Questions

Identity is the property of an object which allows it to be uniquely specified.

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0answers
9 views

How does WebID fit in the SAML picture?

How does WebID fit in the SAML picture? Are they related or completely unrelated? Can they work together? If yes, what are the benefits?
2
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5answers
148 views

Can we have https without certificates?

I apologize in advance if I am fundamentally misunderstanding something, but is it possible to have encrypted communication protocols (https, I suppose) without resorting to a certificate system? ...
2
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1answer
39 views

User IDs containing URIs

When adding a User ID to your OpenPGP key, you are typically asked (for example by GnuPG) to provide a name, a comment, and an email address (where each part is optional). This format (Name (Comment) ...
23
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2answers
3k views

Why do I need to hide my phone's IMEI

If it is a secret then why is it visible on the box, invoice and the back of the phone? If it is not a secret then why does it have to be blurred when it gets posted online?
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5answers
127 views

Is there a term for Authorizing before Authenticating? Is it even common?

In most scenarios a person identifies who they are (authentication/AuthN) via something like a username and password. Afterwards a system would likely evaluate what that validated identity can perform ...
-7
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2answers
117 views

Person has no persona on the internet yet runs a business [closed]

Original Question: There is this older person (60+yrs) who is runs a business with internet presence yet when I do am internet search on him nothing pops up, not even photos!! How do I find out if he ...
3
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4answers
99 views

Lock a website login to a certain computer

I've got a web based system where a specific site only shall be available on a certain computer. On that computer I have a desktop application. The desktop application and the website communicate ...
3
votes
2answers
53 views

What is the name for “imperfect” verification options?

Let's say users log into a system using a voice-print. Software can read the input from the microphone, compare it to the stored sample, and tell the user "There is a 97.5% similarity to the ...
1
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2answers
49 views

Having a consistent “dont reveal email addresses of members” policy [duplicate]

Developers are dogmatic on having "invalid username or password" on login screens; our applications should not reveal if somebody is a member given an email address. But there are two other ways our ...
4
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0answers
214 views

Ensuring an HTTP request is coming from my program

Is there a way to ensure that an HTTP request to my REST server is coming from my application? I'm guessing no because whatever I do on the client side, as people have access to that code, they can ...
3
votes
3answers
84 views

Best practices for GPG user ids

What is the best practice for choosing GPG user id(s)? I've read various bits of advice, which sometimes even contradict each other. For instance, I've read that one should not use comments, because ...
0
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2answers
88 views

Encrypting using the private key in Identity-Based Cryptography

In normal asymmetric crpyto like RSA, if Alice encrypts something using her private key, Bob can decrypt it using Alice's public key. Is the same possible in Identity-Based Cryptography, where the ...
4
votes
5answers
100 views

How can I verify that an organization is what they say they are online?

I'm creating a website that only allows nonprofits and government organizations (parks, etc) to sign up and post service project listings. The accounts posting the listings must be verified to protect ...
5
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2answers
848 views

Appropriate response to 2014 Russian Security Breach (CyberVor)

The report from Hold Security says that 1.2 billion sets of credentials are in the possession of this party. I have a feeling that this report may be a hoax or a partial hoax due to grammatical errors ...
3
votes
2answers
146 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
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3answers
73 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
218 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
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2answers
61 views

A manual function for hasing identity?

I hope you won't close the question. Even though there are no computers involved, it is still about information and security, and I think that security experts are the ones who will be able to help ...
0
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2answers
136 views

Why do file storage sites have a long unique id for their download links?

I'm creating a file storage site and what I would do is just have the download links format as: https://www.domain.com/[id]/[file name] //id would just be 1, 2, 3 etc. Dropbox and many others have ...
1
vote
1answer
148 views

Passport copy is being used to defraud others - what can I do?

I was an idiot and sent my passport and address to a scam artist I was hoping to rent an apartment from abroad. Luckily, I realized the trickery before sending anything else or any money. ...
42
votes
3answers
8k views

Paypal sent an email addressing me with one of my old passwords as my name

I got this email from service@intl.paypal.com, with the title: Your account has been limited until we hear from you. I think this is a scam / spoof email because I don't see any notification in my ...
0
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2answers
40 views

Is there any mail service accepting real id? [closed]

Most webmail services like gmail, facebook, yahoo,.. allow anonymous to create a mail address. If there is a security breach, user may lost important information on that address. They may add phone ...
1
vote
1answer
70 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 ...
1
vote
2answers
110 views

Should every SAML identity provider provide a unique public certificate to the service provider?

When accepting public keys from someone setting up an identity provider for access to resources protected by a service provider using SAML 2.0, do you absolutely need to have a unique certificate? Is ...
0
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2answers
65 views

Is there a way to prevent software from accessing hardware IDs?

I think this is related to this question, but I would like to know if there's also a way to prevent "third party" applications from seeing hardware IDs (motherboard, hard disks, and others), or giving ...
0
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1answer
101 views

Is it safe to recycle unshredded credit card receipts?

Is it safe to recycle unshredded paper credit card receipts? Can identity theft be helped by data disclosed on most vendor's receipts?
2
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3answers
4k views

Someone keeps using my email address. What to do?

I have had a GMail ever since it was created, so it's an email address that is easy to remember, but also easy for somebody else to get confused with. Since I'm not going to post my email address ...
3
votes
3answers
87 views

Way for two parties to establish that they are not previously known to each other

(Sorry if this isn't in the right SE / is not relevant for security.stackexchange - seemed like the best choice) Is there a way for two anonymous parties to establish that they are not previously ...
2
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2answers
124 views

Is it possible to make a “proof of anteriority” for sites content?

Given a site that publishes unique content online and given that there are lots of site scrapers and persons stealing content and reposting it as their own, inevitably you will have the same content ...
3
votes
2answers
392 views

When using private browsing can a website view data stored before private browsing was turned on?

If a browser has been used to visit a few sites and has active logins and then the user turns on private browsing, can the sites still access data such as cookies and cached files that were created ...
0
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2answers
2k views

How to prevent other hosts on the same LAN from seeing my IP and host name?

I want to hide my computer IP dan hostname when I am online on the same LAN on which other computers running netcut and other network tools. I have installed netcut defender but it seems not to hide ...
10
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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
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3answers
642 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 ...
1
vote
1answer
174 views

How does IIS persist identity credentials? Does it create any security issues?

We want to implement a feature similar to IIS in how it remembers user configured usernames and passwords. As I understand it, when you configure IIS to use a set of credentials for an app pool ...
3
votes
1answer
191 views

pro and cons of having 2 Identity providers

My company has applications on cloud and intranet. Also, we have various roles such as employee, customers, partners etc. We would like ID federation between services hosted on public cloud and ...
17
votes
1answer
310 views

What's this kind of authentication scheme called?

In the past I've heard about a scheme to prove your identity online in places like forums, without having to create an account. When posting, the user would enter a password which is then heavily ...
6
votes
2answers
924 views

Best Practices for verifying a users identity for helpdesk

I had a conversation today and someone challenged me as to why you would need to verify the identity of a user calling a service desk with anything other than their company email. Granted I know these ...
8
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11answers
4k views

Besides IP addresses, how else could one be identified? [closed]

OP: I'm curious how else an actor seeking to identify someone online could accomplish this task besides just using an IP address. What methods would they employ? What knowledge must they have of the ...
2
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2answers
16k views

Spam that comes from names in my address book, but not their email addresses

I've recently received two spam messages that show a possibly worrying degree of knowledge about my contacts, and I'm wondering how concerned I should be. Specifically, the names -- but not the email ...
2
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1answer
108 views

Where can I find articles about identity disclosure attack?

Where can I find more details about identity disclosure attack and it's prevention? If the adversary tries to steal the identity of an individual like mobile patterns and start appears in various ...
5
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1answer
441 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 ...
13
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3answers
22k views

Can law enforcement track a criminal through dynamic IP address?

I ask because a week ago my home was broken into and, among other things, my iMac computer was stolen. I am desperate to get it back because it has all the pictures of my daughters from the last ...
24
votes
3answers
970 views

A Different Approach to PKI

After yet another failure of the public key infrastructure, I was thinking about how broken the whole thing is. This business of undeniably associating an identity with a public key, and all the work ...
5
votes
2answers
266 views

Single vs multiple personas? What are the security implications?

I have two email addresses, one for work and one for home. I have have two cellphone numbers, one for work and one for home. But I am just one individual (and only have one social security number ...
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votes
1answer
4k views

how to trace the IP address of gmail account sender via browser [duplicate]

Possible Duplicate: How to trace email? i wanted to know the location of sender email which sent us the threat email the header of email is mentioned below Analysis: Received: from ...
8
votes
1answer
172 views

How can I limit the consequences of a possible future identity theft?

I am curious about how I can limit the consequences of an identity theft. I see a lot of discussion and advice about managing passwords securely or blocking malware. But what if it happens? What if ...
4
votes
1answer
1k views

UPS my choice — How can I access my public records?

I was signing up for UPS my choice and they asked me some security questions. It asked me questions that signified that it was able to figure out: Who my father is and when my father was born. My ...
3
votes
3answers
174 views

How to know if its the same User?

I asked a question awhile ago asking how to make an efficient encrypted chatroom. What I ended up doing was Making each user generate a 4096 bit RSA KeyPair, share their public Keys, and then one of ...
3
votes
1answer
179 views

What are the benefits of federated identity management over bare bones public key encryption?

What are the main reasons for having a federated identity system such as OpenID over having identities based purely on a public key? OpenID uses an Identity Provider to confirm that a user owns a ...