public CTAPCommandGetAssertion(CTAPCommandGetAssertionParam param, byte[] pinAuth, COSE_Key keyAgreement, byte[] sharedSecret) { this.param = param; this.pinAuth = pinAuth?.ToArray(); this.keyAgreement = keyAgreement; this.sharedSecret = sharedSecret; }
/// <summary> /// CTAP-Command GetAssertion use PIN string /// </summary> public async Task <ResponseGetAssertion> GetAssertionAsync(CTAPCommandGetAssertionParam param, string pin) { byte[] pinAuth = null; byte[] sharedSecret = null; COSE_Key myKeyAgreement = null; if (!string.IsNullOrEmpty(pin)) { var token = await ClientPINgetPINTokenAsync(pin); if (token.DeviceStatus != DeviceStatus.Ok || token.CTAPResponse == null || token.CTAPResponse.Status != 0) { return(new ResponseGetAssertion(token.DeviceStatus, token.CTAPResponse)); } //The platform gets sharedSecret from the authenticator. sharedSecret = CTAPCommandClientPIN.CreateSharedSecret(token.KeyAgreementPublicKey, out myKeyAgreement); pinAuth = CTAPCommandClientPIN.CreatePinAuth(param.ClientDataHash, token.CTAPResponse.PinToken); if (pinAuth == null) { return(new ResponseGetAssertion(token.DeviceStatus, token.CTAPResponse)); } } var ctapResponseGetAssertion = new CTAPResponseGetAssertion(); var ret = await sendCommandandResponseAsync(new CTAPCommandGetAssertion(param, pinAuth, myKeyAgreement, sharedSecret), ctapResponseGetAssertion); //Resolve the hmac-secret extension if (param.UseHmacExtension && ctapResponseGetAssertion.Assertion.ExtensionData?.Length > 0) { var data = ctapResponseGetAssertion.Assertion.ExtensionData; var decoded = AES256CBC.Decrypt(sharedSecret, data.ToArray()); Logger.Log($"GOT SYMMETRIC KEY: {decoded.ToHexString()}"); } return(new ResponseGetAssertion(ret.devSt, ret.ctapRes)); }
/// <summary> /// CTAP-Command GetAssertion use PIN string /// </summary> public async Task <ResponseGetAssertion> GetAssertionAsync(CTAPCommandGetAssertionParam param, string pin) { byte[] pinAuth = null; if (!string.IsNullOrEmpty(pin)) { var token = await ClientPINgetPINTokenAsync(pin); if (token.DeviceStatus != DeviceStatus.Ok || token.CTAPResponse == null || token.CTAPResponse.Status != 0) { return(new ResponseGetAssertion(token.DeviceStatus, token.CTAPResponse)); } pinAuth = CTAPCommandClientPIN.CreatePinAuth(param.ClientDataHash, token.CTAPResponse.PinToken); if (pinAuth == null) { return(new ResponseGetAssertion(token.DeviceStatus, token.CTAPResponse)); } } var ret = await sendCommandandResponseAsync(new CTAPCommandGetAssertion(param, pinAuth), new CTAPResponseGetAssertion()); return(new ResponseGetAssertion(ret.devSt, ret.ctapRes)); }
public CTAPCommandGetAssertion(CTAPCommandGetAssertionParam param, byte[] pinAuth) { this.param = param; this.pinAuth = pinAuth?.ToArray(); }
/// <summary> /// CTAP-Command GetAssertion use pinAuth /// </summary> public async Task <ResponseGetAssertion> GetAssertionAsync(CTAPCommandGetAssertionParam param, byte[] pinAuth = null) { var ret = await sendCommandandResponseAsync(new CTAPCommandGetAssertion(param, pinAuth), new CTAPResponseGetAssertion()); return(new ResponseGetAssertion(ret.devSt, ret.ctapRes)); }