public async Task <g.FIDO2.Assertion> Authenticate(g.FIDO2.CTAP.AuthenticatorConnector con, string rpid, byte[] challenge, byte[] credentialId, string pin)
{
return(await Task <g.FIDO2.Assertion> .Run(async() => {
var assertion = new g.FIDO2.Assertion();
{
var param = new g.FIDO2.CTAP.CTAPCommandGetAssertionParam(rpid, challenge, credentialId);
param.Option_up = true;
// pinが未設定であればUVはtrue
param.Option_uv = string.IsNullOrEmpty(pin);
var res = await con.GetAssertionAsync(param, pin);
if (res?.CTAPResponse?.Assertion != null)
{
assertion = res.CTAPResponse.Assertion;
}
if (res?.CTAPResponse?.Assertion?.NumberOfCredentials > 0)
{
for (int intIc = 0; intIc < res.CTAPResponse.Assertion.NumberOfCredentials - 1; intIc++)
{
var next = await con.GetNextAssertionAsync();
}
}
}
return assertion;
}));
}
private async void ButtonAuth_Click(object sender, RoutedEventArgs e)
{
// server
var rpid = "test.com";
var challenge = g.FIDO2.Util.Verifier.CreateChallenge();
//var credentialId = g.FIDO2.Util.Common.HexStringToBytes("8F3045BE18CC2076E4EC8E5D9BCDEB7977B4217AE7B0503F0F5DBCF965CE172B28BFF3EE169E9F17D305E4D4C1FF0F7662A909D7ECA6AE63702AC9FFFBBAC229E907A29D29EE57E59949B075408A4C97780A04354407E73CAC72B31888E3DD09");
// client
var assertion = new g.FIDO2.Assertion();
{
var fidoDevs = g.FIDO2.CTAP.HID.HIDAuthenticatorConnector.GetAllFIDODevicePaths();
if (fidoDevs.Count > 0)
{
var con = new g.FIDO2.CTAP.HID.HIDAuthenticatorConnector(fidoDevs[0]); //we assume that the first USB FIDO device found is the one we should use
var param = new g.FIDO2.CTAP.CTAPCommandGetAssertionParam(rpid, challenge, this.credentialID);
param.Option_up = true;
param.Option_uv = false;
var res = await con.GetAssertionAsync(param, "1234");
if (res?.CTAPResponse?.Assertion != null)
{
assertion = res.CTAPResponse.Assertion;
}
if (res?.CTAPResponse?.Assertion?.NumberOfCredentials > 0)
{
for (int intIc = 0; intIc < res.CTAPResponse.Assertion.NumberOfCredentials - 1; intIc++)
{
var next = await con.GetNextAssertionAsync();
}
}
}
}
//server
if (assertion != null)
{
var v = new g.FIDO2.Util.AssertionVerifier();
var result = v.Verify(rpid, this.publicKey, challenge, assertion);
}
}
