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FWD: Sweden learns of US trap door in Lotus Notes

Ein Bericht über die Anekdote, die ich am Do abend erzählte...
Anonymisiert. Viel Spaß :-)


>Subject: FWD: Sweden learns of US trap door in Lotus Notes
>>------- Forwarded Message
>>Date: Fri, 2 Jan 1998 12:13:37 -0500 (EST)
>>Subject: FWD: Sweden learns of US trap door in Lotus Notes
>>[Some details below are misleading.  As I understand it, each message sent
>>internationally contains within it most of the key used to encrypt the
>>message proper and this key information is encrypted under a private key
>>provided to Lotus by the US Government.  Thus, no key is "escrowed" with or
>>given to anyone.  It is just that if the US Government want to break the
>>security on a Lotus Notes message, it can look into the message and using
>>key corresponding to the one it provided Lotus, it can reduce the work
>>it needs to perform down to only 40 bits of brute forcing.  --****]
>>Date: Wed, 31 Dec 1997 14:35:57 -0500
>>Subject: RISKS 19.52: The Key Escrow Shoe Drops in Sweden... 
>>Forwarded from Risks digest, by way of Nev Dull:
>>Date: Tue, 23 Dec 1997 22:15:31 -0500
>>From: Win Treese <treese@OpenMarket.com>
>>Subject: The Swedes discover Lotus Notes has key escrow!
>>My colleague Bill Nilson brought this to my attention.  Below is his
>>translation of a story from a Swedish newspaper.   [Original Swedish
>>truncated, but is available on request.    PGN]
>>The article describes the reaction when various people in the Swedish
>>government learned that the Lotus Notes system they were using includes key
>>escrow.   They were apparently unaware of this until Notes was in use by
>>thousands of people in government and industry.
>>Besides being an interesting reaction to key escrow systems, this incident
>>reminds us that one should understand the real security of a system....
>>  Secret Swedish E-Mail Can Be Read by the U.S.A.  
>>  Fredrik Laurin, Calle Froste, *Svenska Dagbladet*, 18 Nov 1997
>>One of the world's most widely used e-mail programs, the American Lotus
>>Notes, is not so secure as most of its 400,000 to 500,000 Swedish users
>>believe.  To be sure, it includes advanced cryptography in its e-mail
>>function, but the codes that protect the encryption have been surrendered to
>>American authorities.  With them, the U.S. government can decode encrypted
>>information.  Among Swedish users are 349 parliament members, 15,000 tax
>>agency employees, as well as employees in large businesses and the defense
>>department.  ``I didn't know that our Notes keys were deposited (with the
>>U.S.).  It was interesting to learn this,'' says Data Security Chief Jan
>>Karlsson at the [Swedish] defense department.  Gunnar Grenfors, Parliament
>>director and daily e-mail user, says, ``I didn't know about this--here we
>>handle sensitive information concerning Sweden's interests, and we should
>>not leave the keys to this information to the U.S. government or anyone
>>else.  This must be a basic requirement.''
>>Sending information over the Internet is like sending a postcard--it's that
>>simple to read these communications.  When e-mail is encrypted, it becomes
>>unintelligible for anyone who captures it during transport.  Only those who
>>have the right codes or raw computer power to break the encryption can read
>>it.  For crime prevention and national security reasons, the United States
>>has tough regulations concerning the level of crytography that may be
>>exported.  Both large companies and intelligence agencies can already--in a
>>fractions of a second--break the simpler cryptographic protections.  For the
>>world-leading American computer industry, cryptographic export controls are
>>therefore an ever greater obstacle.  This slows down utilization of the
>>Internet by businesses because companies outside the U.S.A. do not dare to
>>send important information over the Internet.  On the other hand, the
>>encryption that may be used freely within the U.S.A. is substantially more
>>Lotus, a subsidiary of the American computer giant IBM, has negotiated a
>>special solution to the problem.  Lotus gets to export strong cryptography
>>with the requirement that vital parts of the secret keys are deposited with
>>the U.S. government.  ``The difference between the American Notes version
>>and the export version lies in degrees of encryption.  We deliver 64 bit
>>keys to all customers, but 24 bits of those in the version that we deliver
>>outside of the United States are deposited with the American government.
>>That's how it works today,'' says Eileen Rudden, vice president at Lotus.
>>Those 24 bits are critical for security in the system.  40-bit encryption is
>>broken by a fast computer in several seconds, while 64 bits is much more
>>time-consuming to break if one does not have the 24 bits [table omitted].
>>Lotus cannot answer as to which authorities have received the keys and what
>>rules apply for giving them out.  The company has confidence that the
>>American authorities responsible for this have full control over the keys
>>and can ensure that they will not be misused.
>>On the other hand, this (assurance) does not matter to Swedish companies.
>>On the contrary, there is a growing understanding that it would be an
>>unacceptable security risk to place the corporation's own ``master key'' in
>>the hands of foreign authorities.  Secret information can leak or be spread
>>through, for example, court decisions in other countries.  These concerns
>>are demonstrated clearly in a survey by the SAF Trade and Industry security
>>delegation.  Some 60 companies answered the survey.  They absolutely do not
>>want keys deposited in the U.S.A.  It is business secrets they are
>>protecting.  These corporations fear that anyone can get a hold of this
>>information, states Claes Blomqvist at SAF.
>>Swedish businesses are also afraid of leaks within the American authorities.
>>The security chief at SKF, Lars Lungren, states: ``If one has a lawful
>>purpose for having control over encryption, it isn't a problem.  But the
>>precept is flawed: They ought to monitor (internally), but the Americans now
>>act as if there are no crooks working within their authorities.''
>>In some countries, intelligence agencies clearly have taken a position on
>>their country's trade and industry.  Such is the case in France.  One
>>example, which French authorities chose to publicize, was in 1995 when five
>>CIA agents were deported after having spied on a French telecommunications
>>Win Treese <treese@openmarket.com>
>>  [The Lotus Notes crypto scheme is one that I have familiarly been
>>  calling ``64 40 or fight!'' (in a reference to a slogan for an early 
>>  U.S. election campaign border-dispute issue many years ago.  PGN]
>>------- End of Forwarded Message

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