Questions tagged [identity]
Identity is the property of an object which allows it to be uniquely specified.
210
questions
4
votes
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 ...
3
votes
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 #...
0
votes
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 ...
3
votes
2answers
49 views
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 ...
1
vote
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 ...
5
votes
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
vote
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
votes
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 ...
0
votes
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 ...
0
votes
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 ...
0
votes
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 ...
-1
votes
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 ...
4
votes
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 ...
0
votes
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 ...
3
votes
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 - ...
2
votes
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 ...
1
vote
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 ...
1
vote
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 ...
2
votes
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 ...
3
votes
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
votes
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 ...
1
vote
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
votes
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, ...
1
vote
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 ...
0
votes
0answers
50 views
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 ...
2
votes
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 ...
1
vote
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 ...
10
votes
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 ...
0
votes
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.
0
votes
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 ...
2
votes
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
votes
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 ...
50
votes
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
votes
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 ...
3
votes
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 ...
1
vote
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
vote
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
vote
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 ...
1
vote
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 ...
1
vote
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
votes
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
votes
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?
0
votes
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 ...
1
vote
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
votes
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
votes
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
votes
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
votes
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
votes
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
votes
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 ...
