/// <summary>
/// <para>LockCode - Interface Method. Computes a lock code corresponding to the specified Lock Types, License Class, etc.</para>
/// <para>Optionally, if a product license is specified, then a lock string specific to that license is returned.</para>
/// </summary>
/// <param name="Lic">Optional - ByRef Lic As ProductLicense - Product License for which to compute the lock code.</param>
/// <returns>String - Lock code</returns>
/// <remarks></remarks>
public string LockCode(
[
System.Runtime.InteropServices.OptionalAttribute,
System.Runtime.InteropServices.DefaultParameterValueAttribute(null)
] ref ProductLicense Lic)
{
return(string.Empty);
}
string _IALUGenerator.GenKey(ref ActiveLock3_6NET.ProductLicense Lic, string InstCode, [System.Runtime.InteropServices.OptionalAttribute, System.Runtime.InteropServices.DefaultParameterValueAttribute("0")] // ERROR: Optional parameters aren't supported in C#
string RegisteredLevel)
{
return(IALUGenerator_GenKey(Lic, InstCode, RegisteredLevel));
}
//===============================================================================
// Name: Function IALUGenerator_GenKey
// Input:
// ByRef Lic As ActiveLock3.ProductLicense - Product license
// ByVal InstCode As String - Installation Code sent by the user
// ByVal RegisteredLevel As String - Registration Level for the license. Default is "0"
// Output:
// String - Liberation key for the license
// Purpose: Given the Installation Code, generates an Activelock license liberation key.
// Remarks: None
//===============================================================================
private string IALUGenerator_GenKey(ref ActiveLock3_6NET.ProductLicense Lic, string InstCode, [System.Runtime.InteropServices.OptionalAttribute, System.Runtime.InteropServices.DefaultParameterValueAttribute("0")] // ERROR: Optional parameters aren't supported in C#
string RegisteredLevel)
{
// Take request code and decrypt it.
string strReq = null;
// 05.13.05 - ialkan Modified to merge DLLs into one
strReq = modBase64.Base64_Decode(ref InstCode);
// strReq now contains the {LockCode + vbLf + User} string
string strLock = string.Empty;
string strUser = string.Empty;
GetLockAndUserFromInstallCode(strReq, ref strLock, ref strUser);
Lic.Licensee = strUser;
// registration date
string strRegDate = null;
// registered level
Lic.RegisteredLevel = RegisteredLevel;
strRegDate = Lic.RegisteredDate;
string strEncrypted = null;
// @todo Rethink this bit about encrypting the dates.
// We need to keep in mind that the app does not have access to the private key, so and any decryption that requires private key
// would not be possible.
// Perhaps instead of encrypting, we could do MD5 hash of (regdate+lockcode)?
//ActiveLockEventSink_ValidateValue strRegDate, strEncrypted
// hash it
//strEncrypted = ActiveLock3.MD5Hash(strEncrypted)
strEncrypted = strRegDate;
// get software codes
ProductInfo ProdInfo = null;
ProdInfo = IALUGenerator_RetrieveProduct(Lic.ProductName, Lic.ProductVer);
Lic.ProductKey = ProdInfo.VCode;
string strLic = null;
strLic = Lic.ToString_Renamed() + Constants.vbLf + strLock;
System.Diagnostics.Debug.WriteLine("strLic: " + Constants.vbCrLf + strLic);
if (modALUGEN.strLeft(ProdInfo.VCode, 3) != "RSA")
{
// sign it
string strSig = null;
strSig = new string(Strings.Chr(0), 1024);
// 05.13.05 - ialkan Modified to merge DLLs into one. Moved RSASign into a module
strSig = modActiveLock.RSASign(ProdInfo.VCode, ProdInfo.GCode, strLic);
// Create liberation key. This will be a base-64 encoded string of the whole license.
string strLicKey = null;
// 05.13.05 - ialkan Modified to merge DLLs into one
strLicKey = modBase64.Base64_Encode(ref strSig);
// update Lic with license key
Lic.LicenseKey = strLicKey;
// Print some info for debugging purposes
System.Diagnostics.Debug.WriteLine("VCode: " + ProdInfo.VCode);
System.Diagnostics.Debug.WriteLine("Lic: " + strLic);
System.Diagnostics.Debug.WriteLine("Lic hash: " + modMD5.Hash(ref strLic));
System.Diagnostics.Debug.WriteLine("LicKey: " + strLicKey);
System.Diagnostics.Debug.WriteLine("Sig: " + strSig);
System.Diagnostics.Debug.WriteLine("Verify: " + modActiveLock.RSAVerify(ProdInfo.VCode, strLic, modBase64.Base64_Decode(ref strLicKey)));
System.Diagnostics.Debug.WriteLine("====================================================");
}
else
{
try {
System.Security.Cryptography.RSACryptoServiceProvider rsaCSP = new System.Security.Cryptography.RSACryptoServiceProvider();
string strPublicBlob = null;
string strPrivateBlob = null;
strPublicBlob = ProdInfo.VCode;
strPrivateBlob = ProdInfo.GCode;
if (modALUGEN.strLeft(ProdInfo.GCode, 6) == "RSA512")
{
strPrivateBlob = modALUGEN.strRight(ProdInfo.GCode, Strings.Len(ProdInfo.GCode) - 6);
}
else
{
strPrivateBlob = modALUGEN.strRight(ProdInfo.GCode, Strings.Len(ProdInfo.GCode) - 7);
}
// import private key params into instance of RSACryptoServiceProvider
rsaCSP.FromXmlString(strPrivateBlob);
RSAParameters rsaPrivateParams = default(RSAParameters);
//stores private key
rsaPrivateParams = rsaCSP.ExportParameters(true);
rsaCSP.ImportParameters(rsaPrivateParams);
byte[] userData = Encoding.UTF8.GetBytes(strLic);
AsymmetricSignatureFormatter asf = new RSAPKCS1SignatureFormatter(rsaCSP);
HashAlgorithm algorithm = new SHA1Managed();
asf.SetHashAlgorithm(algorithm.ToString());
byte[] myhashedData = null;
// a byte array to store hash value
string myhashedDataString = null;
myhashedData = algorithm.ComputeHash(userData);
myhashedDataString = BitConverter.ToString(myhashedData).Replace("-", string.Empty);
byte[] mysignature = null;
// holds signatures
mysignature = asf.CreateSignature(algorithm);
string mySignatureBlock = null;
mySignatureBlock = Convert.ToBase64String(mysignature);
Lic.LicenseKey = mySignatureBlock;
}
catch (Exception ex) {
modActiveLock.Set_Locale(modActiveLock.regionalSymbol);
Err().Raise(AlugenGlobals.alugenErrCodeConstants.alugenProdInvalid, modTrial.ACTIVELOCKSTRING, ex.Message);
}
}
// Serialize it into a formatted string
string strLibKey = string.Empty;
Lic.Save(ref strLibKey);
return(strLibKey);
}
