Questions tagged [identity]

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

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2answers
91 views

Are there security reasons for prohibiting universal mac address modification?

Background In a standard 48-bit MAC address, the 7th (most significant) bit specifies whether it is a universally-administered address (UAA) or a locally-administered address (LAA). If it is 0, then ...
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1answer
65 views

Randomly generating invoice IDs

I'm in the process of setting up a local (i.e. offline and very limited) business, and I'm thinking of generating invoice IDs randomly to avoid the clients knowing that they're customer number #...
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1answer
74 views

Why to use username and password instead of just a long password? [duplicate]

Why do most websites use the pair of username and password as we can just use a long password like a token to identify a user? A simple example: On the server, we create a JSON file with user data ...
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2answers
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What is the difference between the many identifiers in GnuPG?

GnuPG seems to have number of different ways to refer to a (sub)key(pair): Key IDs Fingerprints Keygrips Additionally, gpg --list-sigs seems to show hexadecimal identifiers for signatures and such ...
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1answer
60 views

What is the best way to verify email address or phone number during call centre sale?

My company sells products through calls. During the calls a customers PII is collected and used to create the product. This PII includes email. After the product is created, we email the customer a ...
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2answers
164 views

Can name and date of birth be hashed somehow to generate a secure identifier?

I'm working on a project which we intend to launch for developing countries, and, as a result, want to limit the amount of information needed for login and identification, while still maintaining ...
1
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1answer
87 views

Possible to verify someone is a real person without direct connection?

I think the following is not possible, but I have no proof and would like to find out wether it is possible or not. Let's say in a network, every participant cannot connect to each other participant ...
0
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1answer
40 views

Proving a software deployment's origin sourcecode [duplicate]

Is there a mechnism that can ensure a deployment (server that can give https responses) is built from the actual (public) sourcecode provided by another https URL? sourcecode from commit #10020 at ...
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1answer
93 views

Sending credit history report to potential landlord

I have a credit report from TransUnion that contains: My real name, current and past addresses Current and past credit card accounts, last 12 monthly balances and payments My past mortgage Past ...
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2answers
82 views

Handling of 3rd party OAuth2 tokens

after some extensive research I still don't know how to properly implement the following case. I think this question answers something similar, but I'm not 100% sure (Should client have access to 3rd ...
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1answer
133 views

How did a website make an accurate assumption of my identity in incognito mode? [duplicate]

What piece of information can websites retrieve that would allow for later identification without cookies? Intro Out of interest I jumped into the rabbit hole of online marketing scams. The site I ...
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2answers
518 views

Uniquely identify each mobile phone of Android 10 / 9 and below

Background: I have an Android APP with millions of users, but some users are malicious users (robot, fake, privilege escaped, etc). The common solution is to detect & block those "bad" accounts ...
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2answers
129 views

Could you store your passwords in a phone app governed by a QR code?

I had an idea a little while back to have an ID card with a QR code on it that you kept in your wallet. When you want to access your passwords (view them directly), you need your ID card and to scan ...
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0answers
109 views

What is delegation, identity delegation, and delegated authorization, and what are the differences among them?

I've been writing up a guide to OAuth 2.0, OpenID Connect, and Identity Server 4 mostly for my own learning, drawing on several sources such as OAuth2 In Action, OAuth 2.0 Simplified, and CISSP: A ...
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3answers
168 views

Is there anything like a standard GUID to identify a PC?

I am asked about my opinion in a case as follows: Someone visited a (totally legal, in fact US government) website A and identified themselves. At a very different point in time they - allegedly - ...
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0answers
55 views

Does photo fingerprinting (using metadata) allow to search all photos on internet made by the same user (privacy issue)?

Browser fingerprinting is well-known: since a client gives many HTTP attributes/Javascript attributes during a website visit, the probability that two users have the same exact values for all this ...
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2answers
100 views

How to Prove you created IP using a Notary

Say you created some IP in the form of some files. How do you prove that you created the IP, in a theoretical cryptographic sense? A major constraint is to maintain security as well, so you can't just ...
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1answer
71 views

Samba and verifying server identity

Suppose that I have two Windows 10 (Professional edition) computers, one (PC) sharing a folder and second one (notebook) copying data to the shared folder automatically. I would like to prevent ...
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2answers
101 views

Is there any way to alter a caller's voice just enough to make voice recognition impossible?

I did search and found this post: Is it possible to identify mobile phone user with voice recognition It does not answer my question, however. Is there any way to alter a person's voice just enough ...
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0answers
118 views

Is there any privacy- or security-relevant difference between FIDO2 and SQRL

I just learned about FIDO2 (WebAuthn) and try to make a comparison to the lesser-known novel SQRL authentication scheme. Both seem to use the same key elements: a private, user-resident "master key" ...
4
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1answer
139 views

How can I challenge an attacker to reliably identify their hardware? [closed]

I distribute a client application where I would like to identify a user's hardware specifications when they begin interacting with my server. I am specifically interested in identifying the user's GPU ...
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5answers
229 views

Potential Risks Using Reference Code Based Authentication For Web Based Application Form That Contains SSN

I'm currently building a web based membership application form that will require a user to enter an SSN and other identifiable information. Part of the requirements of the membership application is to ...
0
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1answer
662 views

Identifying devices in mobile app using UUID

I have a mobile application, for Android and iOS (both native), that communicates with the backend through a REST API (over HTTPS). The application allows users to sign in or use the app as a guest, ...
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1answer
82 views

If only SP (or IDP) uses Shibboleth in its SAML implementation, can the systems still communicate?

I was reading about Shibboleth's metadata -- https://wiki.shibboleth.net/confluence/display/CONCEPT/Metadata#Metadata-Use(andnon-use)ofMetadata , and how it's used to identify IDPs and service ...
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0answers
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Checking authenticity of a mobile app (digital staff card) [duplicate]

I've been asked to implement a digital card for member's of our organisation, to replace the old plastic ones. Members would install our app on their phone and setup a "card" with their photo on it ...
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2answers
79 views

What prevents an identity provider from falsifying authorization in a SAML 2.0 flow?

I'm confused about something in the SAML 2.0 flow. When the initial access to the service provider is made, the service provider must first validate that the user indeed has access and so the service ...
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2answers
206 views

What's the point of a digital certificate for which no private key exists?

I am only using digital certificates to sign documents, and my understanding is that the correct flow is the following: create a private key (e.g. using openssl) create CSR using the previously ...
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1answer
319 views

Is it possible to “reverse engineer” identicons?

As shown in this question, default user avatars (like mine) are identicons and are generated with the user's email (where provided) or the user's IP address (where the email is not provided). Given ...
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1answer
304 views

How is Privileged identity management (PIM) different from privileged access management (PAM)?

I am very confused about those two, I was trying to understand the difference but it all sounds the same from what I read online.
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1answer
89 views

Data leakage in internet-only services

Nowadays, internet-only services became very popular, for example, direct bank and many others. The advantage of such services is you don't have to spend the time to get to the office in order to get ...
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0answers
258 views

How to defend against adblock detection/adblock subscription leaks?

Is there a best practice (or useful extension) for defending against adblock fingerprinting techniques? I'm not asking about how to bypass adblock detection as such, but rather how one might appear ...
4
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3answers
1k views

Drivers license required for online purchases

Problem I tried to buy a few things from a particular industry, and the sellers are independently all asking for a copy of my drivers license to verify that it matches the details on the card because ...
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21answers
20k views

Are there unphotographable, but scannable ID cards?

We have a client who hosts an event, with a tight budget, that uses lanyarded Photo-ID cards with barcodes on them. The barcodes are used to gain access to various areas at the event. We were ...
4
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4answers
142 views

What is a simple and secure method to transfer virtual assets?

Consider a MMORPG where users own virtual assets like magical swords or rings that can be used by the player. This system needs a safe method for transferring assets from Alice to Bob. One ...
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2answers
190 views

Should things like project IDs, cloud region IDs etc be kept secret on an open source project?

All my side project are open source - just using the free Github account. I'm wondering about how security conscious I need to be about keep things like: Google Cloud Platform Project IDs Log ...
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2answers
200 views

Can your cell phone transmissions reveal your identity?

Is it feasible for hackers sitting near you to have some sort of RF listening device that uses your phone's transmissions to identify your name or other information that could be used to determine who ...
1
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1answer
87 views

How is AWS app identity verified?

So I get the notion of roles and service-linked roles and policies in AWS. However, all of that works only if the principal/identity (and I know there's a difference between the two, but using either ...
1
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1answer
239 views

VoIP service requires a scanned copy of my passport

In the process of registering to Callcentric, they asked me a scanned copy of my passport. I already gave them my mobile number, where they could possibly make an interview, and of course they have ...
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2answers
459 views

Best practice on Windows domains: To have a separate admin account or not?

On Linux, we enforce least privilege through sudo. This gives the best of both worlds: Passwords and accounts are for a person, as they should be, not a role. But we lower risk and exposure by only ...
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0answers
45 views

Security concerns in cookie exporting between browsers

I'm wondering why Facebook is not handling the cookie export between browsers and related security concerns. This will be worst when they are using the "remember me" option as the cookies will be ...
45
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10answers
28k views

Why use usernames and not just email addresses to identify users?

Why use usernames, and not just email addresses, to identify users? - What is the main concern or the main case when a security expert (which I'm not) should recommend inserting another layer of ...
2
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2answers
87 views

Is my (Chrome) email address available to websites when I'm logged into Chrome?

When I'm logged into Chrome (e.g. with my Gmail account) can websites view/obtain the email address associated with my Google/Chrome account? For example, as a means to "recognize" me?
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2answers
148 views

Someone is pretending to be me

Need some help! Someone has opened up an email account and is sending emails pretending to be me, to my office. They are asking for large invoices to be paid into a specific account. We realised ...
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0answers
72 views

Where is the ID chip in this card?

I recently attended a Salesforce World Tour. As part of being identifiable and being marketable you get this ID card that the exhibitors scan, so that they can get your name, company, email and ...
2
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1answer
1k views

Implicit flow login from SPA

Looking at the implicit flow to login with https://github.com/IdentityModel/oidc-client-js and https://github.com/IdentityServer/IdentityServer4.Samples/tree/release/Quickstarts/7_JavaScriptClient . ...
3
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2answers
141 views

Should passwords and challenge questions & answers be migrated?

I am currently working on the migration of a user Identity and Access Management tool from a legacy platform (product + solution) to a new one (same product but upgraded + updated solution) My team ...
0
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1answer
580 views

Requiring e-mail from user when using ASP.NET Identity password reset features

I am implementing ASP.NET Core Identity with IdentityServer4. One feature is password reset, and I found that all the examples (e.g. the IdentityServer4 quick start and the ASP.NET Identity example) ...
5
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1answer
356 views

Why would a stranger keep signing up to trading sites with my email address?

I have read the answer below and understand that there is not much I can do about the basic problem of somebody signing up for newsletters and online services using my email address: Someone used my ...
2
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0answers
421 views

Mobile Device identification best practices

When mobile app connects to back-end and requests the data, back-end should be sure that requestor is one it pretends to be. So, we need some way to securely identify the app on a device. While ...
4
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1answer
197 views

Accessing over a VPN both sites that know your real identity and sites you want to stay private from

Goal 1: access certain "anonymous" sites that you don't want to provide your real identity, IP or location to. Goal 2: access "regular" sites that do require or have your real identity, such as your ...

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