Top Document: APAS Anonymous Remailer Use [FAQ 7/8]: Nyms Previous Document: [FAQ 7.2] How do I get a particular nym server's key? Next Document: [FAQ 7.4] Why are nyms such a bitch to set up? See reader questions & answers on this topic! - Help others by sharing your knowledge Summary: Some subjects are encrypted MD5 hashes of the real subject. [The text below is a summary of posts by "Ahab", Saddle <hung@plainmail.com> and Doc.Cypher from the thread "RANDOM STRINGS" containing the "Message-ID:" above.] On Mon, 9 Apr 2001, "Public <Anonymous_Account>" <remailer@xganon.com> wrote: > Most of the messages in <alt.anonymous.messages> are PGP encrypted > but what are the random strings of numbers and letters which appear > in the subject line? Some people configure their nym accounts to have incoming email messages delivered to newsgroup <alt.anonymous.messages> (AAM) instead of to an email address. To find their messages among the many in AAM without disclosing their identity, the "Subject:" line contains information encrypted to a key only they know. This process is automated if you use Jack B Nymble (JBN). A freeware DLL (PSESUB32.DLL) called the Esub plugin adds encrypted subject scanning support to JBN versions 2.1.d and later, and Esub support to Reliable versions 1.0.1 and later: <http://www.skuz.net/potatoware/esubplug.html> RProcess included the Esub plugin with JBN2.1.4. An more detailed explanation is in the Reliable User's Manual: <http://www.theinternet.cc/potatoware/jbn2/JBNR-en.htm#dirEncryptSubject> According to the Reliable User's Manual, the "random" strings of numbers and letters which appear in the "Subject:" line are encrypted MD5 hashes of the final "Subject:" line. That is, the remailer client calculates an MD5 hash from the "Subject:" line(which might be, e.g., "ATTN: Dave") in the final or hash headers (below the "##"). This MD5 hash that results from this calculation is likely to be unique to that particular "Subject:" line. The remailer client then encrypts the MD5 hash using conventional (symmetric) encryption, specifically IDEA. The encryption and decryption key is the passphrase given for the "Encrypt-Subject:" directive. User Contributions:Top Document: APAS Anonymous Remailer Use [FAQ 7/8]: Nyms Previous Document: [FAQ 7.2] How do I get a particular nym server's key? Next Document: [FAQ 7.4] Why are nyms such a bitch to set up? Part1 - Part2 - Part3 - Part4 - Part5 - Part6 - Part7 - Part8 - Single Page [ Usenet FAQs | Web FAQs | Documents | RFC Index ] Send corrections/additions to the FAQ Maintainer: turing+apas-user-faq@eskimo.com (Computer Cryptology)
Last Update March 27 2014 @ 02:12 PM
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