how to read a array and assign to this value to a new array

See more:

C#3.5

MVC5

i have an array .i want to read it and convert it and pass it to a empty array
example

a[]={1,2,3,4,5}

b[]={}
Tst.Password=Password;
           for( int i=0;i<=Password.Length;i++)
           {
           foreach (string t in Password)
           {
                Tst.Passwordtmp = g_obj_Encryption.md5("Password");
           }

           }

here i want to read a[] and method call then store it to b[] one by one