//http://msdn.microsoft.com/zh-cn/library/system.security.cryptography.rngcryptoserviceprovider(VS.80).aspx
/// <summary>
/// 生成安全的随机数(高斯密钥)RollDice
/// </summary>
/// <param name="num">个数</param>
/// <returns>随机数</returns>
public static string RandNumber(int num)
{
string str = "";
// Create a byte array to hold the random value.
byte[] randomNumber = new byte[1];
// Create a new instance of the RNGCryptoServiceProvider.
RNGCryptoServiceProvider Gen = new RNGCryptoServiceProvider();
for (int x = 0; x < num; x++)
{
// Fill the array with a random value.
Gen.GetBytes(randomNumber);
// Convert the byte to an integer value to make the modulus operation easier.
int rand = Convert.ToInt32(randomNumber[0]);
// Return the random number mod the number
// of sides. The possible values are zero-
// based, so we add one.
str += rand % 10;
}
return str;
}
本文转自94cool博客园博客，原文链接：http://www.cnblogs.com/94cool/archive/2011/05/27/2059644.html，如需转载请自行联系原作者
