Reverse Convert.ToBase64String (byte [] array)

Question

In the example

string newString = Convert.ToBase64String(byte[] array)

How do I switch to conversion newStringto get byte[](byte array)?

Answer 1

Convert.FromBase64String(newString)

Answer 2

byte[] data = Convert.FromBase64String(newString);
string decodedString = Encoding.UTF8.GetString(data);

Answer 3

byte[] array= Convert.FromBase64String(newString);