Is a Website a Reliable Source for Random Bits?

In summary, a Quantum Random Bit Generator (QRBG) is a device that uses quantum physics principles to generate truly random numbers. It works by using the randomness of quantum mechanical processes, specifically quantum tunneling, to generate random bits. QRBGs are important in various fields due to their increased security and applications in quantum computing and communication. They are considered truly random because they rely on the unpredictable behavior of quantum particles. However, they have limitations in terms of speed and susceptibility to environmental factors.
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rohanprabhu
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Sounds interesting. Thanks for the link.
 
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And as discussed on /. ...why would you want random bits from a website anyway? (Can't use it for cryptography any more, for example.) Better off using http://www.cs.berkeley.edu/~daw/rnd/linux-rand" .
 
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Related to Is a Website a Reliable Source for Random Bits?

1. What is a Quantum Random Bit Generator?

A Quantum Random Bit Generator (QRBG) is a device that uses quantum physics principles to generate random numbers. Unlike traditional random number generators, which use algorithms to generate numbers, QRBGs use the inherent randomness of quantum mechanical processes to generate truly random numbers.

2. How does a Quantum Random Bit Generator work?

QRBGs use a physical phenomenon called quantum tunneling to generate random bits. This process involves sending a single photon through a beam splitter, which has a 50/50 chance of reflecting or transmitting the photon. The resulting measurement of the photon's state is used as the random bit.

3. Why is a Quantum Random Bit Generator important?

Randomness is essential in many fields, including cryptography, simulations, and scientific experiments. Traditional random number generators can be predictable and vulnerable to attacks, whereas QRBGs offer true randomness and increased security. They also have applications in quantum computing and quantum communication.

4. Are Quantum Random Bit Generators truly random?

Yes, QRBGs are considered truly random because they rely on the unpredictable behavior of quantum particles. This randomness is different from the pseudo-randomness of traditional random number generators, which can be predicted with enough information.

5. What are the limitations of Quantum Random Bit Generators?

One limitation of QRBGs is their speed. The process of generating a random bit using quantum tunneling is slow, so QRBGs may not be suitable for applications that require a high volume of random numbers. Additionally, QRBGs can be affected by environmental factors, such as temperature and electromagnetic interference, which can impact their randomness.

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