A cypherpunk anonymous remailer is a Type I that takes messages encrypted with or , or in some cases in plain text, and forwards them removing any identifying information from the header.

• 1 Sending a Cypherpunk Message
• 2 Notes
• 3 See also
  • 3.1 Howtos and Examples
• 4 Further reading
• 5 Source

Sending a Cypherpunk Message

Step 1: Retrieving the remailer’s Public Key.

Generally you can get a Cypherpunk remailer’s public key by sending an email message with the subject “remailer-key” to the server you wish to use.

Step 2: Import remailer’s public keys into or .

Step 3: Compose Message

Compose the message in your favorite text editor, using the following template:

<pre>:: Anon-To: <Recipient Email Address>

Subject: <Subject>

<Message Text> </pre>

Step 4: Encrypt Message

Use or to encrypt the message that you just composed using the remailer’s public key.

Step 5: Send Encrypted Message to Remailer

Prepare an email to send to the Cypherpunk remailer using the following template:

<pre>

Encrypted: PGP

---

BEGIN PGP MESSAGE—–

<place encrypted output here>

---

END PGP MESSAGE—–

</pre>

Then send it.

Notes

• The extra headers are called ‘pseudoheaders’ because they do not appear in the RFC 822 headers specification for email.
• Messages to Cypherpunk remailers may be layered so they route through several different Cypherpunk remailers to decrease the odds of anyone determining who the sender is.
• 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.
• Many Cypherpunk remailer users will repeat steps 1-4 to wrap their message in additional layers to route it through several remailers for additional privacy and security.

See Also on BitcoinWiki

• Anonymity
  • Anonymous P2P
  • • Mixmaster anonymous remailer (Type II)
    • Mixminion (Type III)
  • Onion routing
  • Pseudonymous remailer (a.k.a. nym servers)
    • Penet remailer

Howtos and Examples

• About.com: Send Email Anonymously — Chaining Remailers with PGP
• Feraga.com: Howto use a Type I Anonymous Remailer (link not active 12 May 2010, see archive version)

Further reading

• Email Security, Bruce Schneier ()
• Computer Privacy Handbook, Andre Bacard ()

Source

http://wikipedia.org/