symmetric encryption broken

L. Sassaman rabbi at
Sun Mar 11 18:43:04 CET 2001

On Fri, 9 Mar 2001, Matthias Urlichs wrote:

> Hi,
> Michael H. Warfield:
> > 	Huh...  Wait a minute.  You're encrypting it once and then
> > encrypting it a second time.  What are you trying to accomplish here?
> >
> Some ciphers are symmetric. If you DES-encrypt something, and then "encrypt"
> the ciphertext again, you magically get the plaintext back.

Uhhh... not quite. With "symmetric" ciphers, you use the same key to
encrypt as well as decrypt.

Methinks you're a bit confused.


L. Sassaman

Security Architect         |  "Belief is nearly the whole of the
Technology Consultant      |   Universe, whether based on truth or not."
                           |    |                   --Kurt Vonnegut, Jr.

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