Questions tagged [fingerprint]
In information security, a fingerprinting algorithm uniquely identifies the hardware, software or data. Just as human fingerprints uniquely identify people for practical purposes. This fingerprint may be used in penetration tests or for vulnerability management.
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Using fingerprints everywhere to identify at physical, ID required, places
I was wondering why people can't just use fingerprints to retrieve all necessary documents where required.
What would be the problem with such form of authentication, which could be used via ...
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What standards are there for sharing public SSH fingerprints?
When connecting to a host through SSH for the first time I get met with the message: Authenticity of host ***** can't be established. ECDSA key fingerprint is SHA256 *******. Are you sure you want to ...
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Why does the fingerprint of a GPG key change after it is made a sub key?
I recently consolidated some of my independently GPG keys.
I used the following the command to edit the oldest key
gpg --expert --edit-key <oldest-keygrip>
gpg> add-key --keygrip=<another-...
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Our fingerprint were leaked from the vulnerable voting system made by our Government, should I avoid using biometric system from now on?
Way back in 2016, our government's Commission on Election database was hacked. I am one of those 55 million people whose personal data was leaked and exposed including our fingerprints.
We are now at ...
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Is PIN method considered less secure when authenticating user before revealing passwords in Microsoft Edge's password manager?
When you are setting up authentication methods in Windows 11 (System settings → Account protection → Windows Hello → Manage sign-in options) you can learn that both PIN and fingerprint are recommended ...
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Website fingerprinting based on packet traces
Given a set of traces coming from different websites, where each trace is a packet. Assume we only know the time of arrival, size and direction of each packet. How do we go about fingerprinting these ...
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Getting fingerprint of certificate signing request
I am aware that I can get the fingerprint of an x509 certificate by typing
openssl x509 -in certificate.crt -noout -fingerprint
But if I try to get the fingerprint of a CSR (openssl req -in ...
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Why does Windows facial recognition not require a password on startup?
I was reading the following question:
Why do mobile devices force user to type password after reboot?
To find out why fingerprint authentication on my Windows 10 laptop isn't an option on startup. It ...
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SSH: MITM attack during fingerprint verification?
The first time I connect via SSH, a "fingerprint" appears. How can I be sure that it belongs to my server/router/etc. and has not been tampered with by a fraudster (MITM)?
For example, for ...
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How/What to prompt user for fingerprint login using smartcard?
We are using a PIV smartcard that has biometric information (fingerprint) of the user encoded on the card to login into our application. We have the capability to read the fingerprint from a reader ...
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How will biometrics be a safe way to authenticate users across the internet?
Let's say Alice created a new account on a service and this service saved her fingerprint as a way of logging in later. Then Alice creates a new account on a new service, but unfortunately this second ...
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How could I know if a website is fingerprinting you via WebGL?
I would like to know if a website is fingerprinting me via WebGL,
first of all, knowing if the site is doing it
Knowing when they send the request to my browser
Knowing what value I am reporting to ...
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Browser fingerprint is unique while running a VM of a clean install of Windows 10
So I used Qemu on Ubuntu 20 to emulate a computer running windows 10. I kept all of Qemu default values. Then, while installing the Windows 10 iso, I kept all the default values once again. Finally, I ...
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Preventing MITM for a new SSH daemon
Supposed I have a number of HTTPS servers on different networks, would it be safe enough to use them together to verify a new SSH daemon's public key? i.e. if they all return the same fingerprint, is ...
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Does fingerprint scanning on Microsoft Authenticator increase security?
tl;dr: I have switched phone and operating system: Android 8.0 --> Android 10.0. Phone restored from backup, so all the remaining is the same except for Microsoft Authenticator that now requires ...
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Prevent Replay Attack When using FingerPrint as login
We have an application that allows users to login using fingerprint. The server validating the sent fingerprint. Now, anyone can watch the traffic and resend them. What the best way to prevent this ...
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Fingerprints of a RSA keys - GitHub not matching?
I am wondering how those RSA fingerprints work. I have a GitHub account and created an RSA key pair to set up an ssh connection. Then followed the instruction...
First time I connect to my GitHub it ...
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Effect of Firefox's "Responsive Design Mode" on the browser's fingerprint
Today I switched ON the "Responsive Design Mode" under the "Web Developer" Section of the Firefox menu, and from the dropdown menu selected "iPhone X/XS iOS 12".
So now ...
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Why don't fingerprint authentication systems don't store 'hashes'? [duplicate]
Usual password authentication systems do not store passwords directly on the server, but only hashes of those passwords.
Why do fingerprint authentication systems not offer this possibility?
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Can we check fingerprint with photos?
Let's assume an insecure communication channel.
Alice makes a public key (we assume is PGP, but any asymmetric crypto could be used unless it doesn't have fingerprints for checking) and sends it to ...
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SSH fingerprints(GitHub) differ when connecting to different routers
You can see that the two fingerprints differ, the second(nThbg6...) is the legit that can be found here:
https://help.github.com/en/github/authenticating-to-github/githubs-ssh-key-fingerprints
I ...
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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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Remmina RDP Certificate Fingerprint Changed
I've been using Remmina to connect to my RDP server across the internet. When I first connected to the server, I had to accept the certificate. I have not had to do that since the first time I ...
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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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How to configure a VM to protect all my hardware fingerprint from guest OS and softwares?
This question was originally Does Firefox in VM have a common enough fingerprint so I don't need tor browser? in Tor community.
I want to know about what a web browser's fingerprint like in a VM, ...
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Where are fingerprints stored on an Android phone?
Many recent phones come with a fingerprint scanner. I use them rarely but I'm curious how do hardware and software protect user's fingerprint data from being stolen.
Does a fingerprint scanner come ...
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Can any of your recognisable personal information be linked to your device fingerprint?
I learned that a device probably has a device fingerprint to the eyes of a company that operates online. I'm not sure how this fingerprint is managed by its collectors, but it's plausible that it ...
user223275
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Is it safe to store and transmit fingerprint templates in ANSI or ISO formats in cleartext format?
I working on a setup where I'm getting users to scan their fingers for fingerprint at a local machine but, the templates are stored at a centralized server for efficiency reasons.
Since the ...
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How much entropy does Apple Touch ID sensor read fingerprint has?
Iphone uses by default 6-digit PIN that has an entropy of 19.93 bits
When iPhone processes the fingerprint, how much entropy does it have?
How long should standard passphrase be until it is as ...
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What can a 3rd party learn about a user through only CSS and images?
In its default settings, uMatrix content blocker allows CSS and images (JPG, PNG, etc) from all sources, unless denied by a site-specific block list. It also allows 1st party cookies, scripts, and ...
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Anonymity: standardization or randomization?
I wonder if it's better to standardize or randomize data for anonymity. For example, think of browser fingerprinting. If you standardize every parameter, you would have all browsers returning the same ...
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Banking app logon - multiple fingerprints on a device vs 2 passwords known by 1 person
Yesterday I logged on to my banking app via my iPhone. The normal procedure was to enter information that consisted of:
The answer to a security question. This had to be entered in full and was the ...
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Making transactions only, or almost only, by QR codes
I have a OnePlus 6 smartphone and I recently opened a bank account in a bank which seems to me very innovative in the context going payment card (debit/credit) free (using only application and/or cash)...
user123574
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Reason for iOS and Android fingerprint behaviour
Both iOS and Android allow using a fingerprint sensor for logging in, and allow applications to store secrets that can only be unlocked using the fingerprint. Both allow one or more fingerprints to be ...
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Does Google read a device fingerprint?
Does Google use a device fingerprint?
https://en.wikipedia.org/wiki/Device_fingerprint
Will Google websites ask Chrome produce a fingerprint? Will Chrome produce a fingerprint for any and all ...
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How can websites know that I accessed them before if I use a VM and different IP?
I created a virtual machine with a clean Windows install on it. On that PC I create a virtual switch and I link it to one of my Wi-Fi boards. I disable IPv4 and IPv6 on that connection so I am not ...
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CISCO VPN Client - Gateway's fingerprint has changed - what is the risk of simply accepting the change?
I am using CISCO VPN client when working remotely to join company's VPN. Once every 2-3 months I receive an alert like the following:
Title:
SSL Network Extender
Message:
Gateway's ...
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Will two smartphones (identical hardware and software) generate the same canvas fingerprint?
When using Canvas Fingerprint (like on this website) to distinguish users, does two smartphones (same model, same OS version, and no browser/plugin customization) will share the same fingerprint?
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How are these transaction fingerprints colored?
For those unfamiliar, blockchains have two main types of data structures propagated in their networks: blocks and transactions. Each block and transaction has a hash, just like key fingerprints. The ...
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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 ...
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How secure is the fingerprint sensor in the Pixel 3?
As far as I understand different fingerprint scanners have different security levels. Old fingerprint print scanners could be fooled quite easily as the CCC (Chaos Computer Club) demonstrated.
How ...
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When first connecting via SSH to my server, the reported fingerprint does not match that given to me when I generated the SSH key
When I used ssh-genkey on macOS to generate the pair of key files (one named with .pub), that tool reported a SHA256 hash as a public key fingerprint.
When first connecting to my server, a Digital ...
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Enumerating hosts running Elastic Stack
I am currently working on a project where I need to find a host running a SIEM solution. From my research I am fairly confident that the host is running Elastic Stack, probably within another solution ...
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When should TouchID/Fingerprint log-in expire?
I couldn't find such a standard which mention about TouchID or fingerprint log in expiration date.
Suppose I have an application and allow users to log in using the fingerprint. I would like to know ...
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Is there a way to find out what information website queries about us? [closed]
What tool or software should I look for to find out what "fingerprinting" data
a website is tracking?
Like, I want to know, if website looks for a cache and/or fonts installed in system, or Canval, ...
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Will disabling WebGL make me more or less unique on the internet?
I have wondered whether disabling WebGL will make me more or less unique, I fiddled around with https://panopticlick.eff.org/ to see what would happen.
If I keep it enabled I am 1/205.66, with me ...
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Preventing OS fingerprinting
I am working on a project and I need to hide my Linux OS from nmap or other OS identification tools. I read many articles about TCP/IP stack and changed many properties such as TTL and packet size but ...
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How does google know if I am logging in from a new machine(using web browser)? [duplicate]
Every time i sign into my google account on a web browser on a new machine, it warns me of suspicious activity. How does google know its a new machine? I am trying to implement a similar thing for my ...
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Browser Fingerprinting to secure login
Is it a good Idea to identify if the user logging in is the actual user who created the account by using Browser fingerprinting?
Basically do a bunch of checks just as they click sign in and if it ...
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IRC client with ability to verify server's self-signed cert fingerprint [closed]
I'm playing around with UnrealIRCd on CentOS. Just went through the config and compiling and got the ircd up and running.
When I go to connect to it via HexChat I can only get through by checking the ...
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