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Non-Repudiation
Non-Repudiation

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!!! Overview
Non-repudiation refers to a state of affairs where the purported maker of a statement will not be able to successfully challenge the validity of the statement or contract.
The term, [{$pagename}], is often seen in a legal setting wherein the authenticity of a signature is being challenged. In such an instance, the authenticity is being "repudiated".
[{$pagename}] is a Facet Of Building [Trust]
Regarding digital security, the [Cryptographic] meaning and application that provides [{$pagename}] shifts to imply:
* A service that provides proof of the [integrity] and origin of data.
* An [Authentication] that can be asserted to be genuine with reasonable [Level Of Assurance] .
Proof of data [integrity] is typically the easiest of these requirements to accomplish. A [Hash], provides a reasonable [Level Of Assurance] that the likelihood of data being undetectably changed is extremely low. Even with the [Hash] safeguard, it is still possible to tamper with data in transit, either through a [man-In-The-Middle] attack or phishing. Due to this possible [vulnerability], data [integrity] is best asserted when the recipient already possesses the necessary verification information or there is a reasonable [Level Of Assurance] that the proper safeguards were applied within the network infrastructure.
The most common method of asserting the digital origin of data is through digital [Certificates] using [Certificate-based Authentication] via a form of [Public Key Infrastructure], where [Digital Signatures] could be utilized. The digital origin only means that the certified/signed data can be, with a reasonable [Level Of Assurance], trusted to be from somebody who possesses the [Private Key] corresponding to the signing [Certificate].
If the [Private Key] is not properly safeguarded by the original owner, digital forgery can become a major concern as the [Private Key] is considered to be a [Bearer Token].
!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
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* [#1] - [Non-repudiation|https://en.wikipedia.org/wiki/Non-repudiation|target='_blank'] - based on information obtained 2013-04-10
This page (revision-1) was last changed on 29-Nov-2024 16:16 by UnknownAuthorTop