There are several

newsgroup A Usenet newsgroup is a repository usually within the Usenet system for messages posted from users in different locations using the Internet. They are not only discussion groups or conversations, but also a repository to publish articles, start ...

s relevant for discussions about

cryptography Cryptography, or cryptology (from "hidden, secret"; and ''graphein'', "to write", or ''-logy, -logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of Adversary (cryptography), ...

and related issues. *sci.crypt — an unmoderated forum for discussions on technical aspects of

. * sci.crypt.research — a similar,

moderated Moderation is the process or trait of eliminating, lessening, or avoiding extremes. It is used to ensure normality throughout the medium on which it is being conducted. Common uses of moderation include: * A way of life emphasizing perfect amo ...

group, focusing on research into cryptography. It was founded based on a charter by Peter Gutmann. *sci.crypt.random-numbers — discuss generation of cryptographically secure random numbers. *talk.politics.crypto — discussions of the relationship between cryptography and government. The original charter was by D.J. Silverton. *alt.security.pgp — discussion of

Pretty Good Privacy Pretty Good Privacy (PGP) is an encryption software, encryption program that provides cryptographic privacy and authentication for data communication. PGP is used for digital signature, signing, encrypting, and decrypting texts, Email, e-mail ...

(PGP) and related software.

sci.crypt

In 1995,

Bruce Schneier Bruce Schneier (; born January 15, 1963) is an American cryptographer, computer security professional, privacy specialist, and writer. Schneier is an Adjunct Lecturer in Public Policy at the Harvard Kennedy School and a Fellow at the Berkman ...

commented, "It is read by an estimated 100,000 people worldwide. Most of the posts are nonsense, bickering, or both; some are political, and most of the rest are requests for information or basic questions. Occasionally nuggets of new and useful information are posted to this newsgroup." Applied Cryptography; 2nd ed, pages 608–609 Leaked descriptions of secret algorithms have been posted to the Internet via sci.crypt, for example

RC2 In cryptography, RC2 (also known as ARC2) is a symmetric-key block cipher designed by Ron Rivest in 1987. "RC" stands for "Ron's Code" or "Rivest Cipher"; other ciphers designed by Rivest include RC4, RC5, and RC6. The development of RC2 was ...

RC4 In cryptography, RC4 (Rivest Cipher 4, also known as ARC4 or ARCFOUR, meaning Alleged RC4, see below) is a stream cipher. While it is remarkable for its simplicity and speed in software, multiple vulnerabilities have been discovered in RC4, ren ...

and

Khufu and Khafre In cryptography, Khufu and Khafre are two block ciphers designed by Ralph Merkle in 1989 while working at Xerox's Palo Alto Research Center. Along with Snefru, a cryptographic hash function, the ciphers were named after the Egyptian Pharaohs Kh ...

. Others have been hoaxes:

Iraqi block cipher In cryptography, the Iraqi block cipher was a block cipher published in C source code form by anonymous FTP upload around July 1999, and widely distributed on Usenet. It is a five round unbalanced Feistel cipher operating on a 256 bit block with ...

and S-1, the latter an alleged description of the (then-secret) Skipjack cipher. The group is also the origin of the term, "

Rubber-hose cryptanalysis In cryptography and steganography, plausibly deniable encryption describes encryption techniques where the existence of an encrypted file or message is deniable in the sense that an adversary cannot prove that the plaintext data exists. The users ...

References

External links

Newsgroups for cryptography

sci.crypt Frequently Asked Questions
Cryptography journals Sci.* hierarchy {{compu-journal-stub