storing a byte array in web.config

Question

I have a developer key

 byte[] key = new Byte[]
            {
                0x01, 0x42, 0xA0, 0xE1, 0x5E, 0xEE, 0xA7, 0x01, 0x71, 0x9A, 0xCB, 0xAB, 0x58, 0xEB, 0xED, 0x44...

that I want to store in my web.config, can I do something like as follows

<add key="spotify-devkey" value="0x01, 0x42, 0xA0, 0xE1, 0x5E, 0xEE, 0xA7, 0x01, 0x71, 0x9A, 0xCB, 0xAB, 0x58, 0xEB, 0xED, 0x44,...

and if I can do it this easily what code would I need to get the byte array from the stored string?

possible duplicate of Convert hex string to byte array, or How do you convert Byte Array to Hexadecimal String, and vice versa, in C#? — Grant Thomas
– Grant Thomas, Commented Mar 20, 2012 at 12:55

Justin Wignall · Accepted Answer · 2012-03-20 13:04:46Z

11

I would use Base64

System.Convert.ToBase64String(key,0,key.Length);

and

System.Convert.FromBase64String(keyStringFromConfig);

to help keep the config file 'clean'

answered Mar 20, 2012 at 13:04

Justin Wignall

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1 Comment

Sean Haddy Over a year ago

+1 I recommend saving as a base 64 and converting back as well, much cleaner solution.

Bala R · Accepted Answer · 2012-03-20 13:01:23Z

4

string value = ... // value from config file.
byte[] key = value.Split(new[] {','}).Select(s => Convert.ToByte(s, 16))
                                     .ToArray();

edited Mar 20, 2012 at 13:01

answered Mar 20, 2012 at 12:52

Bala R

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