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ssh available in the crypto locker

daemon@ATHENA.MIT.EDU (ghudson@MIT.EDU)
Sun Dec 17 00:54:51 1995

From: ghudson@MIT.EDU
Date: Sun, 17 Dec 1995 00:54:19 -0500
To: software-announce@MIT.EDU

I have made ssh available in the crypto locker for Ultrix, Solaris,
AIX, IRIX, NetBSD, and Linux.

ssh is intended to work as a drop-in replacement for rsh providing
public-key encryption to protect the authenticity and privacy of
connections.  See /mit/crypto/src/ssh-1.2.12/README for a list of
features and other information.

Legal information (see /mit/crypto/src/ssh-1.2.12/COPYING for
details):

	* RSA: ssh uses the RSA algorithm for public key encryption.
	  I have built ssh using the rsaref2 library, which allows
	  non-commercial use.  You are probably in violation of the
	  RSA patent if you use ssh for commercial purposes with a
	  license from RSA.

	* Cylink: all public-key cryptography is alleged covered by
	  Clink's Hellman-Merkle patent.  However, Cylink claims that
	  it does not intend to restrict non-commercial use; from
	  http://www.cylink.com/qa.html:

		Q. Will Cylink attempt to stop the non-commercial use
		of public key (such as in PGP)?

		A. No. Although, technically, a Stanford patent
		license is needed for the public domain software such
		as PGP, Cylink intends to promote the use of public
		key on the Internet. Cylink intends to announce a
		royalty-free license for personal use after meeting
		with a spokesperson for the PGP community. Watch
		Cylink's home page for details. (http://www.cylink.com)

	* IDEA: ssh can use the IDEA algorithm for symmetric
	  encryption.  IDEA is allegedly patented by Ascom-Tech in the
	  US.  According to Roland Weinhart, "Non commercial use of
	  IDEA is free."  Again, you are probably in violation if you
	  use ssh for commercial purposes.


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