xor


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XOR

[eks′ȯr]
(computer science)

xor

XOR

(eXclusive OR) A Boolean logic operation that is widely used in cryptography as well as in generating parity bits for error checking and fault tolerance. XOR compares two input bits and generates one output bit. The logic is simple. If the bits are the same, the result is 0. If the bits are different, the result is 1.

Several Symbols
Various symbols are used to designate the XOR operation including a + sign inside a circle, an underlined "V" and the caret (^). See cryptography, RAID and or.


XOR in Cryptography
This example uses XOR and the same "secret key" to encrypt and decrypt. Although XOR logic may be used, secret key algorithms are much more sophisticated than this. See encryption algorithm.
References in periodicals archive ?
Indeed, DNA damage and the consequent loss of cloning efficiency occurred in a Burkitt lymphoma-derived cell line via XOR activity through the production of ROS [14].
It should be noted that D1 in the above description represents data A for the first XOR (MZI 1), whilst it represents the first XOR output for the second XOR (MZI 3).
The business change will allow SeaChange the flexibility to offer server and storage products from any company, including XOR Media, as part of its intelligent video platform, the CEO added.
It is because XOR operation used for computing the Hamming distance nullifies encryption in the following way:
In term of power consumption, conventional full adder consumes high power due to use of high power consumption XOR gate.
While the quad-core Xeon processor is designed to successfully serve 500+ users' requests all the time, the hardware RAID controller XOR engine calculates the massive RAID parities protecting all critical data.
i] be the i-th bit of a cipher-text obtained by applying a XOR (exclusive-or) enciphering operation:
Consider the four logic operators AND, OR, XOR and NXOR (not XOR).
The company predicts that in the coming year hackers will vary their use of formats further with 1 Byte XOR Key, Multiple XOR keys and ROR, ROL, ADD and SUB formats to be exploited.
One structure of information that has generated special interest in the literature on configural strategy use is found in an environment in which the XOR logical rule is applied to amalgamate two cues into one compound cue (Shepard, Hovland, & Jenkins, 1961; Waldmann, Holyoak, & Fratianne, 1995).
Thus the complementarity principle itself is a manifestation of the underlying mathematical formalism and one ends up with an XOR bifurcation of two inconsistent with each other outcomes.