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The simplest such pairwise independent hash function is defined by the random key, key = (a, b), and the MAC tag for a message m is computed as tag = (am + b) mod p, where p is prime. More generally, k -independent hashing functions provide a secure message authentication code as long as the key is used less than k times for k -ways independent ...
Truncating the resulting hash to achieve K-anonymity; The degree to which a resulting hash is truncated is a balancing act between the privacy offered and the desired collision rate (the probability that one anonymised MAC Address will overlap with another).
Comparison of implementations of message authentication code (MAC) algorithms. A MAC is a short piece of information used to authenticate a message—in other words, to confirm that the message came from the stated sender (its authenticity) and has not been changed in transit (its integrity).
Virtual machines receive a MAC address in a range that is configurable in the hypervisor. [15] Additionally some operating systems permit the end user to customise the MAC address, notably OpenWRT. [16] Usage of the node's network card MAC address for the node ID means that a version-1 UUID can be tracked back to the computer that created it.
Out-of-box experience in Windows 11. An out-of-box experience (OOBE (/ ˈ uː b iː / OO-bee)) is the experience an end-user has when taking a product after unboxing, or for digital distribution, runs the installer, and is preparing to first use it, as opposed to the point-of-sale experience or the interaction experience of an expert user.
A SHA instruction set is a set of extensions to the x86 and ARM instruction set architecture which support hardware acceleration of Secure Hash Algorithm (SHA) family. It was specified in 2013 by Intel. [1] Instructions for SHA-512 was introduced in Arrow Lake and Lunar Lake in 2024.
Hardware-based encryption is the use of computer hardware to assist software, or sometimes replace software, in the process of data encryption. Typically, this is implemented as part of the processor 's instruction set.
In cryptography, a universal hashing message authentication code, or UMAC, is a message authentication code (MAC) calculated using universal hashing, which involves choosing a hash function from a class of hash functions according to some secret (random) process and applying it to the message. The resulting digest or fingerprint is then ...