/// <summary> /// Generated an activation key for the target deviceid. /// </summary> /// <param name="deviceId">Identifier of the cdeEngine node that is to be activated with the activation key.</param> /// <param name="signingKey">Symmetric key (arbitrary string) used to sign the activation key. The same key must be provided on the runtime node.</param> /// <param name="Expiration">Expiration date of the activation key. Licenses and entitlements activated using this key will cease to be valid after this date.</param> /// <param name="licenses">Note: values in the License.LicenseParameters property will be included in the activation key and added to the values in the license at activation time. /// This means that often you will want to set these values to 0 if the license already contains non-zero default paremeters.</param> /// <param name="activationKeyParameters">Additional parameters (typically entitlements for thing instances) to be unlocked with this activation key.</param> /// <param name="flags">Flags requesting additional activation key behavior.</param> /// <returns></returns> public static string GenerateActivationKey(Guid deviceId, string signingKey, DateTime Expiration, TheLicense[] licenses, List <TheLicenseParameter> activationKeyParameters, ActivationFlags flags) { if (licenses.Length > MaxLicensesInActivationKey || licenses.Length == 0) { return(null); } var sortedLicenses = licenses.OrderBy((l) => l.LicenseId.ToString()); byte[] licenseSignature; byte[] licenseParams = GenerateLicenseParameters(sortedLicenses); if (licenseParams == null || licenseParams.Length > TheActivationUtils.MaxLicenseParameters) { return(null); } int index = 0; foreach (var param in activationKeyParameters) { licenseParams[index] = param.Value; index++; } double expirationTemp = Math.Ceiling((Expiration.ToUniversalTime() - new DateTime(2016, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalDays); if (expirationTemp < 0 || expirationTemp > 0xFFFF) { return(null); } uint expirationInDays = (uint)expirationTemp; if (!TheActivationUtils.GenerateLicenseSignature(deviceId, signingKey, expirationInDays, sortedLicenses.ToArray(), licenseParams, flags, out licenseSignature)) { return(null); } byte[] activationKey = new byte[23]; // 0-7: HMACSHA1 (appId, licenseAuthorization) -> truncate to 8 bytes (64 bits) licenseSignature.Take(8).ToArray().CopyTo(activationKey, 0); // 8-9: Expiration: Days since January 2016. Resulting Range: 2016 - 2195 activationKey[8] = (byte)(expirationInDays & 0xFF); activationKey[9] = (byte)((expirationInDays >> 8) & 0xFF); // 10: Flags activationKey[10] = (byte)flags; // 11: Reserved (0) activationKey[11] = 0; // 12: License count activationKey[12] = (byte)sortedLicenses.Count(); // 13-21: License parameters ( licenseParams.CopyTo(activationKey, 13); // 22: Padding activationKey[22] = 15; // Ensure we always get 6x6 characters in base32 var key = TheActivationUtils.Base32Encode(activationKey); //var testKey = TheActivationUtils.Base32Decode(key.Replace("-","")); return(key); }
public static string GetActivationRequestKey(Guid deviceId, uint SkuId) { if (deviceId == Guid.Empty) { //TheBaseAssets.MySYSLOG.WriteToLog(10000, TSM.L(eDEBUG_LEVELS.OFF) ? null : new TSM(eEngineName.ThingService, "Unable to generate activation key: device id not configured.", eMsgLevel.l2_Warning, "")); return(null); } byte[] tGu = deviceId.ToByteArray(); uint tenMinuteIntervalsSinceUnixEpoch = (uint)((DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalMinutes) / 10; // Base 32 encoded, 22 Bytes: // 0,2,4 - Creation Time (10 Minute intervals since Unix Epoch, little endian) // 6,8 - SkuId (little endian) // 1,3,5,7,9-20 - Device Id (16 byte GUID) // 21 - Checksum // 22 - Padding (to ensure 6x6 chars in base32) byte[] activationRequestKey = new byte[3 + tGu.Length + 2 + 1 + 1]; int j = 0; //activationRequestKey[0] = (byte) (DateTime.UtcNow.Ticks & 0xff); //j++; byte checksum = 0;// activationRequestKey[0]; for (int i = 0; i < tGu.Length; i++) { if (i < 3) { activationRequestKey[j] = (byte)((tenMinuteIntervalsSinceUnixEpoch & 0xff) ^ checksum); tenMinuteIntervalsSinceUnixEpoch = tenMinuteIntervalsSinceUnixEpoch >>= 8; checksum += activationRequestKey[j]; j++; } else if (i < 5) { activationRequestKey[j] = (byte)((SkuId & 0xff) ^ checksum); SkuId = SkuId >>= 8; checksum += activationRequestKey[j]; j++; } activationRequestKey[j] = (byte)(tGu[i] ^ checksum); checksum += activationRequestKey[j]; j++; } activationRequestKey[j] = (byte)(checksum & 0xff); j++; //activationRequestKey[j + 1] = (byte) ((checksum >> 8) + activationRequestKey[0]); //activationRequestKey[j + 2] = (byte) (((activationRequestKey[0]) | 0x02) & 0x03); // ensure positive big int and 36 chars in output activationRequestKey[j] = 15; // padding return(TheActivationUtils.Base32Encode(activationRequestKey)); }
public static string CreateActivationRequestKey(Guid deviceId, uint SkuId) { if (deviceId == Guid.Empty) { return(null); } byte[] tGu = deviceId.ToByteArray(); uint tenMinuteIntervalsSinceUnixEpoch = (uint)((DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalMinutes) / 10; // Base 32 encoded, 22 Bytes: // 0,2,4 - Creation Time (10 Minute intervals since Unix Epoch, little endian) // 6,8 - SkuId (little endian) // 1,3,5,7,9-20 - Device Id (16 byte GUID) // 21 - Checksum // 22 - Padding (to ensure 6x6 chars in base32) byte[] activationRequestKey = new byte[3 + tGu.Length + 2 + 1 + 1]; int j = 0; //activationRequestKey[0] = (byte) (DateTime.UtcNow.Ticks & 0xff); //j++; byte checksum = 0;// activationRequestKey[0]; for (int i = 0; i < tGu.Length; i++) { if (i < 3) { activationRequestKey[j] = (byte)((tenMinuteIntervalsSinceUnixEpoch & 0xff) ^ checksum); tenMinuteIntervalsSinceUnixEpoch = tenMinuteIntervalsSinceUnixEpoch >>= 8; checksum += activationRequestKey[j]; j++; } else if (i < 5) { activationRequestKey[j] = (byte)((SkuId & 0xff) ^ checksum); SkuId = SkuId >>= 8; checksum += activationRequestKey[j]; j++; } activationRequestKey[j] = (byte)(tGu[i] ^ checksum); checksum += activationRequestKey[j]; j++; } activationRequestKey[j] = (byte)(checksum & 0xff); j++; //activationRequestKey[j + 1] = (byte) ((checksum >> 8) + activationRequestKey[0]); //activationRequestKey[j + 2] = (byte) (((activationRequestKey[0]) | 0x02) & 0x03); // ensure positive big int and 36 chars in output activationRequestKey[j] = 15; // padding return(TheActivationUtils.Base32Encode(activationRequestKey)); }