secure electronic exchange of keys algorithm

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• Secure electronic transaction — (SET) is a standard protocol for securing credit card transactions over insecure networks, specifically, the Internet. SET is not itself a payment system, but rather a set of security protocols and formats that enables users to employ the… …   Wikipedia

• Key exchange — is any method in cryptography by which cryptographic keys are exchanged between users, allowing use of a cryptographic algorithm. If Alice and Bob wish to exchange encrypted messages, each must be equipped to decrypt received messages and to… …   Wikipedia

• cryptology — cryptologist, n. cryptologic /krip tl oj ik/, cryptological, adj. /krip tol euh jee/, n. 1. cryptography. 2. the science and study of cryptanalysis and cryptography. [1635 45; < NL cryptologia. See CRYPTO , LOGY] * * * Introduction …   Universalium

• History of cryptography — The history of cryptography begins thousands of years ago. Until recent decades, it has been the story of what might be called classic cryptography that is, of methods of encryption that use pen and paper, or perhaps simple mechanical aids. In… …   Wikipedia

• RSA — In cryptography, RSA is an algorithm for public key cryptography. It is the first algorithm known to be suitable for signing as well as encryption, and one of the first great advances in public key cryptography. RSA is widely used in electronic… …   Wikipedia

• Digital rights management — (DRM) is a term for access control technologies that are used by hardware manufacturers, publishers, copyright holders and individuals to limit the use of digital content and devices. The term is used to describe any technology that inhibits uses …   Wikipedia

• Public key infrastructure — In cryptography, a public key infrastructure (PKI) is an arrangement that binds public keys with respective user identities by means of a certificate authority (CA). The user identity must be unique for each CA. The binding is established through …   Wikipedia

• Whitfield Diffie — Diffie redirects here. For the country music singer, see Joe Diffie. Whitfield Diffie Born June 5, 1944 …   Wikipedia

• Cryptography — Secret code redirects here. For the Aya Kamiki album, see Secret Code. Symmetric key cryptography, where the same key is used both for encryption and decryption …   Wikipedia

• Digital signature — This article is about secure cryptographic signatures. For simple signatures in digital form, see Electronic signature. A digital signature or digital signature scheme is a mathematical scheme for demonstrating the authenticity of a digital… …   Wikipedia

• One-time pad — Excerpt from a one time pad In cryptography, the one time pad (OTP) is a type of encryption, which has been proven to be impossible to crack if used correctly. Each bit or character from the plaintext is encrypted by a modular addition with a bit …   Wikipedia