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2. TCP/IP stack fingerprinting - Wikipedia

   en.wikipedia.org/wiki/TCP/IP_stack_fingerprinting

   TCP/IP stack fingerprinting is the remote detection of the characteristics of a TCP/IP stack implementation. The combination of parameters may then be used to infer the remote machine's operating system (aka, OS fingerprinting ), or incorporated into a device fingerprint .

3. p0f - Wikipedia

   en.wikipedia.org/wiki/P0f

   p0f is a passive TCP/IP stack fingerprinting tool. p0f can attempt to identify the system running on machines that send network traffic to the box it is running on, or to a machine that shares a medium with the machine it is running on. p0f can also assist in analysing other aspects of the remote system.

4. Device fingerprint - Wikipedia

   en.wikipedia.org/wiki/Device_fingerprint

   A browser fingerprint is information collected specifically by interaction with the web browser of the device. [ 1 ] : 1 Device fingerprints can be used to fully or partially identify individual devices even when persistent cookies (and zombie cookies ) cannot be read or stored in the browser, the client IP address is hidden, or one switches to ...

5. Fingerprint (computing) - Wikipedia

   en.wikipedia.org/wiki/Fingerprint_(computing)

   To serve its intended purposes, a fingerprinting algorithm must be able to capture the identity of a file with virtual certainty. In other words, the probability of a collision — two files yielding the same fingerprint — must be negligible, compared to the probability of other unavoidable causes of fatal errors (such as the system being destroyed by war or by a meteorite): say, 10 −20 or ...

6. Fingerprint scanner - Wikipedia

   en.wikipedia.org/wiki/Fingerprint_scanner

   There are four types of fingerprint scanners: [7] optical scanners, capacitance scanners, ultrasonic scanners, and thermal scanners. The basic function of every type of scanner is to obtain an image of a person's fingerprint and find a match for it in its database. The measure of the fingerprint image quality is in dots per inch (DPI). [8]

7. Touch ID - Wikipedia

   en.wikipedia.org/wiki/Touch_ID

   Logo used by Apple Touch ID module of an iPhone 6s. Touch ID is an electronic fingerprint recognition feature designed and released by Apple Inc. that allows users to unlock devices, make purchases in the various Apple digital media stores (App Store, iTunes Store, and Apple Books Store), and authenticate Apple Pay online or in apps.