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D link validating identity message

It was the result of a year-long collaboration among numerous industry players, during 2005, to develop an open-standard e-mail authentication specification.Participants included Alt-N Technologies, AOL, Brandenburg Internet Working, Cisco, Earth Link, IBM, Microsoft, PGP Corporation, Sendmail, Strong Mail Systems, Tumbleweed, Veri Sign and Yahoo! The team produced the initial specification and several implementations.

The organization is a handler of the message, either as its originator or as an intermediary.In computer science, verifying a person's identity is often required to allow access to confidential data or systems.Authentication can be considered to be of three types: The first type of authentication is accepting proof of identity given by a credible person who has first-hand evidence that the identity is genuine.It might involve confirming the identity of a person by validating their identity documents, verifying the authenticity of a website with a digital certificate, determining the age of an artifact by carbon dating, or ensuring that a product is what its packaging and labeling claim to be.In other words, authentication often involves verifying the validity of at least one form of identification. In art, antiques and anthropology, a common problem is verifying that a given artifact was produced by a certain person or in a certain place or period of history.A vendor selling branded items implies authenticity, while he or she may not have evidence that every step in the supply chain was authenticated.

Centralized authority-based trust relationships back most secure internet communication through known public certificate authorities; decentralized peer-based trust, also known as a web of trust, is used for personal services such as email or files (pretty good privacy, GNU Privacy Guard) and trust is established by known individuals signing each other's cryptographic key at Key signing parties, for instance.

Imagine that Jack ([email protected]) sends a message to Jill ([email protected]) at a different site.

Once Jack's mail server has accepted the message, it must either pass it along to Jill's mail server, or else deposit a bounce message in Jack's mailbox.

Popular links: DKIM attaches a new domain name identifier to a message and uses cryptographic techniques to validate authorization for its presence.

The identifier is independent of any other identifier in the message, such in the author's From: field.

The complexity stems from many factors including variability in practices of authentication, data collection, technology, and the historical silo approach to patient identification.