/// <summary>
/// Generates a signature and signs the <see cref="License"/> with the provided key.
/// </summary>
/// <param name="privateKey">The private key.</param>
/// <returns>A signed <see cref="License"/>.</returns>
public License Sign(byte[] privateKey)
{
Signature = null;
var j = JObject.FromObject(this);
var json = Encoding.UTF8.GetBytes(j.ToString(Formatting.None));
var signer = new ECC.Signer();
Signature = signer.Sign(json, privateKey ?? signer.PrivateKey);
return(this);
}
/// <summary>
/// Checks if the <see cref="License.Signature"/> property can be verified using the provided public key.
/// </summary>
/// <param name="publicKey">The public key for this product.</param>
/// <returns>true if the <see cref="License.Signature"/> is correct; otherwise false.</returns>
public bool VerifySignature(byte[] publicKey)
{
var sig = Signature;
Signature = null;
try {
var j = JObject.FromObject(this);
var json = Encoding.UTF8.GetBytes(j.ToString(Formatting.None));
var signer = new ECC.Signer();
return(signer.Verify(json, sig, publicKey));
}
finally {
Signature = sig;
}
}