A cypherpunk anonymous remailer is an anonymous remailer that takes messages encrypted with PGP or GPG, or in some cases in plain text, and forwards it removing any identity information from the header. The message is preceded with the following pseudoheader (called "pseudoheader" because it is after the RFC 822 headers): The cypherpunks (cipher+punk) comprise an informal group of people interested in privacy and cryptography who originally communicated through the cypherpunks mailing list. ... An anonymous remailer is a server computer which receives messages with embedded instructions on where to send them next, and which forwards them without revealing where they originally came from. ... Pgp is an acronym for: Pretty Good Privacy, a computer program for the encryption and decryption of data; P-glycoprotein, a type of protein Party for the Government of the People (Partido por el Gobierno del Pueblo} Pearl of Great Price the ICAO code for Perm Airlines This page concerning... The GNU Privacy Guard (GnuPG or GPG) is a free software replacement for the PGP suite of cryptographic software, released under the GNU General Public License. ...
::
Request-Remailing-To: final@destination.net
then encrypted to the remailer's key, and the following pseudoheader is prepended to the result:
Encrypted: PGP
Some Cypherpunk remailers are also Mixmaster anonymous remailers and can split long Cypherpunk messages into Mixmaster packets and send them to the next remailer, if it also understands Mixmaster. Mixmaster is an anonymous remailer which sends messages in fixed-size packets and reorders them, preventing anyone watching the messages go in and out of remailers from tracing them. ...
An anonymous remailer is a server computer which receives messages with embedded instructions on where to send them next, and which forwards them without revealing where they originally came from. ... A pseudonymous remailer or nym server, as opposed to an anonymous remailer, is an Internet software program designed to allow people to write anonymous messages on Usenet newsgroups and send anonymous email under a pseudonym. ... An anonymous P2P computer network is a particular type of peer-to-peer network in which the users and their nodes are pseudonymous by default. ... Tor, an anonymous Internet communication system, is a second generation Onion Routing network that allows people to communicate anonymously. ... Data privacy refers to the evolving relationship between technology and the legal right to, or public expectation of privacy in the collection and sharing of data. ... Identity theft (or identity fraud) is the deliberate assumption of another persons identity, usually to gain access to their finances or frame them for a crime. ... The Penet remailer (anon. ... Anonymity is the state of not being identifiable within a set, called the anonymity set. ... Traffic analysis is the process of intercepting and examining messages in order to deduce information from patterns in communication. ... In electronic communication, anonymous publication is the act of making publicly available text (eg, articles, reviews, commentary) which cannot be traced to the author unless the text itself identifies (or hints at) the author. ... Onion Routing is a technique for pseudonymous (or anonymous) communication over a computer network, developed by David Goldschlag, Michael Reed, and Paul Syverson. ...
A pseudonymous remailer or nym server, as opposed to an anonymousremailer, is an Internet software program designed to allow people to write anonymous messages on Usenet newsgroups and send anonymous email under a pseudonym.
Unlike a purely anonymousremailers, it assigns its users a user name, and it keeps a database of instructions on how to return messages to the real user.
The Penet remailer, which lasted from 1993 to 1996, was a popular pseudonymous remailer.
There are Cypherpunkanonymousremailers, Mixmaster anonymousremailers, and nym servers, among others which differ in how they work, in the policies they adopt, and in the type of attack on anonymity of email they can (are intended to) resist.
Anonymity in the latter case is more easily addressed by using any of several methods of anonymous publication.
Opponents of anonymity (eg, of anonymousremailers as facilitators of same) suggest that anonymity allows/encourages illegal or dangerous activity (eg, terrorism, drug trafficking, pedophiliac attacks against children,...).
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