| | Once
the simple substitution cipher and the
Vigenère cipher had been cracked,
the search
was on even better ciphers. As the 20th
century progressed,
encryption moved from
pencil and paper to the electro-mechanical
Enigma,
then to computer algorithms, and
then to public key cryptography. And at the
end of the century quantum cryptography
has become a reality. However,
the Black Chamber ends here. To
find out more about 20th century cryptography
or cryptography in general,
then you could: 1.
visit Crypto
Corner at simonsingh.net
2.
visit the Crypto
Links at simonsingh.net
3.
obtain The
Code Book by Simon Singh
4. obtain the interactive CD-ROM
on cryptography.
In
particular, I would recommend the CD-ROM,
which is an interactive version
of The Code Book.
It includes:
1.
Encryption tools,
2. Codebreaking tools,
3. Video clips,
4. Code messages
to crack,
5. Material for teachers,
6. A realistic, virtual Enigma cipher
machine,
7. A beginner's cryptography tutorial,
8. A history of codes from
1,000 BC to 2000 AD,
9. Material for junior codebreakers,
10. Interviews
with Whit Diffie and Clifford Cocks.
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