Difference between String Value and Binary Value in Registry

Question

Can someone explain me when to use String Value or Binary Value in windows registry? Is there any security concerns also attached with these or not ?

Answer 1

I want to store date in encrypted format

You must use the binary format. Encrypted data cannot be stored in a string. It will randomly get corrupted when the string is normalized, not every byte value is a valid Unicode codepoint. If you absolutely want a string then you have to encode the data, Convert.ToBase64String().