The power of quantum computers
fr: http://en.wikipedia.org/wiki/Quantum_computer
Quote:
Integer factorization is believed to be practically impossible with
an ordinary computer for large numbers that are the product of two
prime numbers of roughly equal size (eg. products of two 300-digit
primes). By comparison, a quantum computer could solve this problem
very quickly. If a number has n bits (is n digits long when written
in the binary numeral system), then a quantum computer with just
over 2n qubits can find its factors. It can also solve a related
problem called the discrete log problem. This ability would allow a
quantum computer to break many of the cryptographic systems in use
today. In particular, most of the popular public key ciphers could
be quickly broken, including forms of RSA, ElGamal and
Diffie-Hellman. These are used to protect secure Web pages,
encrypted email, and many other types of data. Breaking these would
be significant.[url[/url---end of quote
2.I read that this computer if sucessful,can make all conventional
computers
like a toy.Have u seen SNEAKERS by Robert Redford.exactly the
same.With the magic box,they can break in US DOD etc.The real one
off course may be bigger in the initial stage.
3.Who get this wil sure know all secret.
Dunt worry,We are also RD something......!ha ha ha!
We have teams leaded by top expert in this subject.u cannt believe
this!
http://www.sgforums.com/?action=thread_display&thread_id=133945
Miss Cryptographer,crack it.
Read more and tell us how is the development in the world in this
two fields.
Are they in fact the same thing?