What is a public key token and how is it calculated in assembly strong names?

Question

What is a \'public key token\' and how is it calculated in assembly strong names?

Answer 1

If you need to generate a public key token based on a full public key, this little static method works:

   private static byte[] GetKeyTokenFromFullKey(byte[] fullKey)
    {
        SHA1CryptoServiceProvider csp = new SHA1CryptoServiceProvider();
        byte[] hash = csp.ComputeHash(fullKey);
        byte[] token = new byte[8];
        for (int i = 0; i < 8; i++ )
            token[i] = hash[hash.Length - (i+1)];

        return token;
    }