static Message ProcessSign(CBORObject control, ref bool fDirty)
{
CBORObject input = control["input"];
CBORObject sign = input["sign"];
CBORObject signers;
SignMessage msg = new SignMessage();
if (!input.ContainsKey("plaintext"))
{
throw new Exception("missing plaintext field");
}
msg.SetContent(input["plaintext"].AsString());
if (sign.ContainsKey("protected"))
{
AddAttributes(msg, sign["protected"], 0);
}
if (sign.ContainsKey("unprotected"))
{
AddAttributes(msg, sign["unprotected"], 1);
}
if (sign.ContainsKey("unsent"))
{
AddAttributes(msg, sign["unsent"], 2);
}
if ((!sign.ContainsKey("signers")) || (sign["signers"].Type != CBORType.Array))
{
throw new Exception("Missing or malformed recipients");
}
foreach (CBORObject recip in sign["signers"].Values)
{
msg.AddSigner(GetSigner(recip));
}
{
msg.Encode();
signers = Program.GetSection(Program.GetSection(control, "intermediates"), "signers", CBORType.Array);
for (int iSigner = 0; iSigner < msg.SignerList.Count; iSigner++)
{
while (signers.Count < msg.SignerList.Count)
{
signers.Add(CBORObject.NewMap());
}
Program.SetField(signers[iSigner], "ToBeSign", msg.SignerList[iSigner].ToBeSigned, ref fDirty);
}
}
return(msg);
}
public void testGetSignerCount()
{
SignMessage msg = new SignMessage();
Assert.AreEqual(msg.SignerList.Count, (0));
Signer r = new Signer();
msg.AddSigner(r);
Assert.AreEqual(msg.SignerList.Count, (1));
}
static void BuildCompact(CBORObject control, JwkSet keys)
{
// Encrypted or Signed?
if (control.ContainsKey("signing"))
{
SignMessage sign = new SignMessage();
Signer signer = new Signer(keys[0]);
sign.SetContent(control["input"]["payload"].AsString());
sign.AddSigner(signer);
CBORObject xx = control["signing"]["protected"];
foreach (CBORObject key in xx.Keys)
{
signer.AddAttribute(key, xx[key], Attributes.PROTECTED);
}
string output = sign.EncodeCompressed();
Message msg = Message.DecodeFromString(output);
CheckMessage(msg, keys[0], control["input"]);
}
else if (control.ContainsKey("encrypting_key"))
{
EncryptMessage enc = new EncryptMessage();
CBORObject xx = control["encrypting_content"]["protected"];
foreach (CBORObject key in xx.Keys)
{
enc.AddAttribute(key, xx[key], Attributes.PROTECTED);
}
Recipient recip = new Recipient(keys[0], control["input"]["alg"].AsString(), enc);
enc.AddRecipient(recip);
enc.SetContent(control["input"]["plaintext"].AsString());
string output = enc.EncodeCompressed();
Message msg = Message.DecodeFromString(output);
CheckMessage(msg, keys[0], control["input"]);
}
}