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A key is retrieved from the set of “Future Keys” This is used to encrypt the message, creating a cryptogram. An identifier known as the “Key Serial Number” (KSN) is returned from the encrypting device, along with the cryptogram. The KSN is formed from the device's unique identifier, and an internal transaction counter.
Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...
A camera icon in the apps' search fields lets other users point their device's camera at the code, which takes them to the same content. [ 243 ] [ 244 ] [ 245 ] In January 2019, Spotify introduced Car View for Android, allowing devices running Android to have a compact Now Playing screen when the device is connected to a car's Bluetooth.
PUFs act as digital uniquely identifying fingerprints. A physical unclonable function (sometimes also called physically-unclonable function, which refers to a weaker security metric than a physical unclonable function [citation needed]), or PUF, is a physical object whose operation cannot be reproduced ("cloned") in physical way (by making another system using the same technology), that for a ...
Low-density parity-check (LDPC) codes are a class of highly efficient linear block codes made from many single parity check (SPC) codes. They can provide performance very close to the channel capacity (the theoretical maximum) using an iterated soft-decision decoding approach, at linear time complexity in terms of their block length.
The distance of the concatenated code Cout ∘ Cin is at least dD, that is, it is a [ nN, kK, D '] code with D ' ≥ dD . Proof: Consider two different messages m1 ≠ m2 ∈ BK. Let Δ denote the distance between two codewords. Then. Thus, there are at least D positions in which the sequence of N symbols of the codewords Cout ( m1) and Cout ...
Three years ago, as the long-struggling Citigroup was in a tailspin over a billion-dollar fat-finger error, the bank announced its next CEO, Jane Fraser. At the time, given Citi’s chronic ...
Most certificates contain a number of fields not listed here. Note that in terms of a certificate's X.509 representation, a certificate is not "flat" but contains these fields nested in various structures within the certificate. Serial Number: Used to uniquely identify the certificate within a CA's systems. In particular this is used to track ...