- ...Project
- STS stands for Science Techniques Society
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- ...Internet.
- You can now even
order a pizza through the Internet.
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- ...cattle
- Camels in North
Africa
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- ...
- A cipher
is a method of cryptography by applying an algorithm to the letters or
digits of the plaintext [DP92].
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- ...satisfactory
- For several
ciphers, weak numbers exist, for which the complexity to break the
ciphertext is relaxed.
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- ...LUCIFER
- LUCIFER was the
predecessor of DES and was developed by IBM in the early 1970s.
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- ...S-boxes
- An S-Box is a substitution operation which scrambles
the input string (changes the position of the bytes)
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- ...problems
- The requirements were a high level of security,
completely specified and easy to understand, economical to implement
and efficient to use, among other reasons.
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- ...triple-DES
- Triple-DES is implemented by applying 3 times DES
to the data.
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- ...impostor
- It is not difficult for malicious hackers to
intercept and forge E-mails.
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- ...Mondex
- Mondex did not describe the
problem in their documentation and did therefore not state to have
solved it either.
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- ...cash
- like the one provided by
DigiCash
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- ...problem.
- In 1993, card fraud cost English banks about 130
million pounds [WCP1#195].
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