cryptographic digital communication
1Digital credential — Digital credentials are the digital equivalent of paper based credentials. Just as a paper based credential could be a passport, a Driver s license, a membership certificate or some kind of ticket to obtain some service, such as a cinema ticket… …
2Cryptographic key types — One of the most important aspects of any cryptographic system is key management; it is also the aspect which is most often neglected.[citation needed] A very common mistake is mixing different key types and reusing the same key for different… …
3Digital Postmarks — A Digital Postmark (DPM) is a technology that applies a trusted time stamps issued by a postal operator to an electronic document, validates electronic signatures, and stores and archives all non repudiation data needed to support a potential… …
4Digital watermarking — An image with visible digital watermarking the text Brian Kell 2006 is visible across the center of the image Digital watermarking is the process of embedding information into a digital signal which may be used to verify its authenticity or the… …
5Near field communication — An NFC enabled mobile phone interacting with a SmartPoster Near field communication, or NFC, allows for simplified transactions, data exchange, and wireless connections between two devices in proximity to each other, usually by no more than a few …
6Electronic signature — The term electronic signature has several meanings. Among the more expansive is that given by US law, influenced by ABA committee white papers and the uniform law promulgated by the National Conference of Commissioners on Uniform State Laws… …
7Bluetooth — This article is about the electronic protocol. For the medieval King of Denmark, see Harald I of Denmark. Bluetooth logo Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances (using short wavelength …
8information theory — the mathematical theory concerned with the content, transmission, storage, and retrieval of information, usually in the form of messages or data, and esp. by means of computers. [1945 50] * * * ▪ mathematics Introduction a mathematical… …
9Error detection and correction — In mathematics, computer science, telecommunication, and information theory, error detection and correction has great practical importance in maintaining data (information) integrity across noisy channels and less than reliable storage… …
10Pseudorandom noise — In cryptography, pseudorandom noise (PRN[1][2]) is a signal similar to noise which satisfies one or more of the standard tests for statistical randomness. Although it seems to lack any definite pattern, pseudorandom noise consists of a… …
