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Encryption without encryption - from Ron Rivest

daemon@ATHENA.MIT.EDU (Martin Minow)
Mon Mar 23 11:56:37 1998

Date: Sun, 22 Mar 1998 08:53:20 -0800
To: cryptography@c2.net, cypherpunks@cyberpass.net
From: Martin Minow <minow@apple.com>

In a paper entitled "Chaffing and Winnowing: Confidentiality without

Encryption," Ron Rivest describes a method of transmitting a document

that gives an evesdropper no information about the content of the

document. <<http://theory.lcs.mit.edu/~rivest/chaffing.txt>


"Winnowing does not employ encryption, and so does not have
a``decryption key.''  Thus, the usual arguments in favor of
``keyrecovery'' don't apply very well for winnowing.  As usual, the
policydebate about regulating technology ends up being obsoleted
bytechnological innovations.  Trying to regulate confidentiality
byregulating encryption closes one door and leaves two
open(steganography and winnowing)."


Martin Minow

minow@apple.com






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