CODEWITHSUNDEEP
c#c++
G Gr
G Gr

Reputation: 6090

Random Binary Generator (not pseudo)

How do I generate random binary values lets say 10 digits 0010101001 and I want to call this C1 I then want to create another one called C2 same again random 10 digit binary number.

C# is my language of choice.

Is there a bitset class for c#

something simple would be nice, like

int C1

for ( int C1 = 0; <=10; C1++)
     output bitset<0>

return 0;

Need to store c1 and c2 tho.

Upvotes: 2

Views: 5070

Answers (5)

user2100815
user2100815

Reputation:

If you want true random numbers, you need hardware your computer probably doesn't have. However, it can be added simply and cheaply - see here,for example.

However, I think that a good pseudo-random generator, such as those that come with Boost - see Boost random number generator for an example, will be sufficient for your needs

Upvotes: 4

Sergey Zyuzin
Sergey Zyuzin

Reputation: 3834

You may be interested in the rdrand instruction available in Ivy Bridge Intel processors. It's entropy source uses thermal noise within the silicon (See DRNG Software Implementation Guide).

Intel provides rdrand C++ library. So you'll need to write managed C++ wrapper assembly to use it from C#. I've just compiled test project using the library, but my processor doesn't support the instruction.

Upvotes: 2

ninjagecko
ninjagecko

Reputation: 91132

function randomInt(max)
    // produces integer with uniform distribution between [0,max)
    # this should be in your standard library
    # though perhaps not by this name; and you may need to
    # initialize and maybe randomly seed your RNG beforehand

myRandomBinaryNumber = randomInt(2^10)  // then cast it if required

edit: this answer added before "(not pseudo)" added to title

edit: I recommend the methods listed in other answers, depending on one's needs (pseudorandom, cryptographically pseudorandom, truly random, etc.)

Upvotes: 2

ninjagecko
ninjagecko

Reputation: 91132

Googling for [C# random number] results in http://social.msdn.microsoft.com/Forums/en/Vsexpressvcs/thread/55fb3116-c978-4ac8-9381-a2605e16e256 as the third hit.

Random random = new Random();
int randomNumber = random.Next(0, 2^10);

That being said, you are probably looking for a "pseudorandom" source.

edit: this answer added before "(not pseudo)" added to title

Upvotes: 1

SLaks
SLaks

Reputation: 887807

It sounds like you're looking for either the BitArray class or the RNGCryptoServiceProvider class.

Upvotes: 1

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