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Formally, a message authentication code (MAC) system is a triple of efficient [4] algorithms (G, S, V) satisfying: G (key-generator) gives the key k on input 1 n, where n is the security parameter. S (signing) outputs a tag t on the key k and the input string x. V (verifying) outputs accepted or rejected on inputs: the key k, the string x and ...
MAC addresses are primarily assigned by device manufacturers, and are therefore often referred to as the burned-in address, or as an Ethernet hardware address, hardware address, or physical address. Each address can be stored in the interface hardware, such as its read-only memory , or by a firmware mechanism.
Each device is given its Device Keys and a 31-bit number d called the device number. For each Device Key, there is an associated number denoted the path number, the “u” bit mask, and the “v” bit mask. The path number denotes the position in the tree associated with the Device Key. This path number defines a path from the root to that ...
A Uniform Type Identifier (UTI) is a text string used on software provided by Apple Inc. to uniquely identify a given class or type of item. Apple provides built-in UTIs to identify common system objects – document or image file types, folders and application bundles, streaming data, clipping data, movie data – and allows third party developers to add their own UTIs for application ...
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.
A device fingerprint or machine fingerprint is information collected about the software and hardware of a remote computing device for the purpose of identification. The information is usually assimilated into a brief identifier using a fingerprinting algorithm .
To completely and unambiguously define the MAC calculation, a user of ISO/IEC 9797-1 must select and specify: The block cipher algorithm e; The padding method (1 to 3) The specific MAC algorithm (1 to 6) The length of the MAC; The key derivation method(s) if necessary, for MAC algorithms 2, 4, 5 or 6
A direct-access storage device (DASD) (pronounced / ˈ d æ z d iː /) is a secondary storage device in which "each physical record has a discrete location and a unique address". The term was coined by IBM to describe devices that allowed random access to data, the main examples being drum memory and hard disk drives. [1]