using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^30([0-4][0-9a-f])(02([0-2][0-9a-f])(00)?[a-f0-9]{2,64})(02([0-2][0-9a-f])(00)?[a-f0-9]{2,64})(01|02|03|81|82|83)?$";
string input = @"304402200e2244c8966e5b1a150f49d0f6bac978a9cfa1c4b32b4cf783c9f7c93be4bc6b022077018e8d6da02ec60f93b3e936fd283aa87beab1c373839616d1ad5a9bc4dcfb";
RegexOptions options = RegexOptions.IgnoreCase;
Match m = Regex.Match(input, pattern, options);
Console.WriteLine("'{0}' found at index {1}", m.Value, m.Index);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx