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DES encryption functions written 12 Dec 1986 by Phil Karn, KA9Q; large sections adapted from the 1977 public-domain program by Jim Gillogly Modified for additional speed - 6 December 1988 Phil Karn Modified for parameterized key schedules - Jan 1991 Phil Karn AS PER http://www.ka9q.net/code/des/index.html RELAXATION OF US EXPORT CONTROLS On January 14, 2000 the United States Government relaxed its export regulations governing cryptographic source code. The software on these web pages all qualify as: Encryption source code which is available to the public and which is not subject to an express agreement for the payment of a licensing fee or royalty for commercial production or sale of any product developed with the source code so they are now available from this website without restriction as to destination. They are still available through the export-controlled North American Cryptography Archives server: DES/3DES code in x86 asm DES/3DES code in portable C
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