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I am trying to decrypt the string in asp.net which is encryted in java.I am able to do it till some extent but its not completely decrypting.
Here i am putting the code of both (Decryption through ASP.NET and Encryption through Java)
private String Encrypt() /// Done in Java return encryted string
{
String hexString="";
String msg="Sample Input Text";
SecretKeySpec skeySpec ="GbxDwxcjvjtpi0+lQuyfHg=="; // Autogennerate Key
try
{
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
byte[] encrypted = cipher.doFinal(msg.getBytes());
hexString=asHex(encrypted);
}
catch(Exception e)
{
System.out.println("Error in Encrypt"+e);
}
return hexString;
}
private void DecryptFunction() // Done in Asp.net
{
try
{
string strEncrypt = "fc8caff8581f9a3920b788490c3569ffb345e54c7f72a73ddb76256ff81fbfd6";// Encrypt string
string AutoKey= "GbxDwxcjvjtpi0+lQuyfHg==";
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = Encoding.UTF8.GetBytes(AutoKey= );
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform crypt = tdes.CreateDecryptor();
byte[] cipher = FromHex(strEncrypt);
byte[] plain = crypt.TransformFinalBlock(cipher, 0, cipher.Length); // Here Error showing
Response.Write("Decryped string : " + System.Text.Encoding.UTF8.GetString(plain) + "<br/><br/><br/><br/>");
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
}
Here decryt function should be return decrypt string means Sample Input Text but its showing Bad Data error.
I give error screen shot also.
Server Error in '/WebSite1' Application.
--------------------------------------------------------------------------------
Bad Data.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Security.Cryptography.CryptographicException: Bad Data.
Source Error:
Line 76: ICryptoTransform crypt = tdes.CreateDecryptor();
Line 77: byte[] cipher = FromHex(strEncrypt);
Line 78: byte[] plain = crypt.TransformFinalBlock(cipher, 0, cipher.Length); // Here Error showing
Line 79: Response.Write("Decryped string : " + System.Text.Encoding.UTF8.GetString(plain) + "<br/><br/><br/><br/>");
Line 80:
Source File: c:\Documents and Settings\tmani.MILESDNS01\My Documents\Visual Studio 2005\WebSites\WebSite1\SSoFinal.aspx.cs Line: 78
Stack Trace:
[CryptographicException: Bad Data.
]
System.Security.Cryptography.CryptographicException.ThrowCryptogaphicException(Int32 hr) +33
System.Security.Cryptography.Utils._DecryptData(SafeKeyHandle hKey, Byte[] data, Int32 ib, Int32 cb, Byte[]& outputBuffer, Int32 outputOffset, PaddingMode PaddingMode, Boolean fDone) +0
System.Security.Cryptography.CryptoAPITransform.TransformFinalBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount) +200
SSoFinal.DecryptFunctionINGData() in c:\Documents and Settings\tmani.MILESDNS01\My Documents\Visual Studio 2005\WebSites\WebSite1\SSoFinal.aspx.cs:78
SSoFinal.Page_Load(Object sender, EventArgs e) in c:\Documents and Settings\tmani.MILESDNS01\My Documents\Visual Studio 2005\WebSites\WebSite1\SSoFinal.aspx.cs:20
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +31
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +68
System.Web.UI.Control.OnLoad(EventArgs e) +88
System.Web.UI.Control.LoadRecursive() +74
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3035
--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42
I would appreciate some help
Regards
Mani
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Hy,
I m using query sring to pass value to another page. can any one tell me how to encrypt the query string value and then decrypt it on the other page
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Use the Cryptography namespace to encrypt and decrypt strings.
Christian Graus
Driven to the arms of OSX by Vista.
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Follow the below steps: I am posting with small exmaple
A.Code in sender page of uery string
1.string strID = "A0123456789";
2. Response.Redirect("../Search/DocumentSearch.aspx?ID=" + Encrypt(strID));
3.public string Encrypt(string strValue)
{
string encryptedResult = String.Empty;
string passPhrase = "Pas5pr@se";
string saltValue = "s@1tValue";
string hashAlgorithm = "SHA1";
int passwordIterations = 2;
string initVector = "@1B2c3D4e5F6g7H8";
int keySize = 256;
byte[] initVectorBytes;
initVectorBytes = Encoding.ASCII.GetBytes(initVector);
byte[] saltValueBytes;
saltValueBytes = Encoding.ASCII.GetBytes(saltValue);
byte[] plainTextBytes;
plainTextBytes = Encoding.UTF8.GetBytes(strValue);
PasswordDeriveBytes password;
password = new PasswordDeriveBytes(passPhrase, saltValueBytes, hashAlgorithm, passwordIterations);
byte[] keyBytes;
keyBytes = password.GetBytes((keySize / 8));
RijndaelManaged symmetricKey;
symmetricKey = new RijndaelManaged();
symmetricKey.Mode = CipherMode.CBC;
ICryptoTransform encryptor;
encryptor = symmetricKey.CreateEncryptor(keyBytes, initVectorBytes);
MemoryStream memoryStream;
memoryStream = new MemoryStream();
CryptoStream cryptoStream;
cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write);
cryptoStream.Write(plainTextBytes, 0, plainTextBytes.Length);
cryptoStream.FlushFinalBlock();
byte[] cipherTextBytes;
cipherTextBytes = memoryStream.ToArray();
memoryStream.Close();
cryptoStream.Close();
string cipherText;
cipherText = Convert.ToBase64String(cipherTextBytes);
return cipherText;
}
B. Code in receiver page of querystring
1.string strID = Request.QueryString["ID"].ToString();
string plainValue= Decrypt(strID);
2. public string Decrypt(string encryptedResult)
{
string passPhrase = "Pas5pr@se";
string saltValue = "s@1tValue";
string hashAlgorithm = "SHA1";
int passwordIterations = 2;
string initVector = "@1B2c3D4e5F6g7H8";
int keySize = 256;
byte[] initVectorBytes;
initVectorBytes = Encoding.ASCII.GetBytes(initVector);
byte[] saltValueBytes;
saltValueBytes = Encoding.ASCII.GetBytes(saltValue);
byte[] cipherTextBytes = new byte[encryptedResult.Length] ;
cipherTextBytes = Convert.FromBase64String(encryptedResult);
PasswordDeriveBytes password;
password = new PasswordDeriveBytes(passPhrase, saltValueBytes, hashAlgorithm, passwordIterations);
byte[] keyBytes;
keyBytes = password.GetBytes((keySize / 8));
RijndaelManaged symmetricKey;
symmetricKey = new RijndaelManaged();
symmetricKey.Mode = CipherMode.CBC;
ICryptoTransform decryptor;
decryptor = symmetricKey.CreateDecryptor(keyBytes, initVectorBytes);
MemoryStream memoryStream;
memoryStream = new MemoryStream(cipherTextBytes);
CryptoStream cryptoStream;
cryptoStream = new CryptoStream(memoryStream, decryptor, CryptoStreamMode.Read);
byte[] plainTextBytes= new byte [encryptedResult.Length ] ;
//object plainTextBytes;
int decryptedByteCount;
decryptedByteCount = cryptoStream.Read(plainTextBytes, 0, plainTextBytes.Length);
memoryStream.Close();
cryptoStream.Close();
string plainText;
plainText = Encoding.UTF8.GetString(plainTextBytes, 0, decryptedByteCount);
return plainText;
}
Cheers!
Regards
Anil Pal
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instead of encrypt the query string you have to use the urlrewriting.
so that you can get exact url.
Regards,
Keyur Satydev
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Crystal Report working in IDE 2008 but when i publish web project
and try to run it from IIS 5.0 I got this kind of error.
Logon failed. Details: ADO Error Code: 0x Source: Microsoft OLE DB Provider for SQL Server Description: Login failed for user 'UserName\ASPNET'. SQL State: 42000
Please help me in this matter
“You will never be a leader unless you first learn to follow and be led.”
–Tiorio
"Coming together is a beginning, staying together is progress, and working together is success." Henry Ford
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give permission to ASPNET to the database you are login...
Create a login and give permission to that database on your server. ![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
Abhishek Sur
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Insert Runtime Row in Gridview Control using C#
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Vishal09 wrote: Insert Runtime Row in Gridview Control using C#
Ok. Now what's the question? Please read the posting guidelines before you post all the crap here.
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test successful. You ARE a moron after all.
Christian Graus
Driven to the arms of OSX by Vista.
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hi..
i have a DataTable dt width data
Id Price
1 250
2 200
3 300
DataSet ds = new DataSet();
ds.Tables.Add(dt);
XmlDataDocument x = new XmlDataDocument(ds);
and a procedure in sql server 2005
create procedure Sproc_Select_Xml(@x xml)
AS
BEGIN
DECLARE @data TABLE(Id bigint,Price numeric)
INSERT INTO @data(Id,Price)
SELECT xmlVals.rowvals.query('Id').value('.','bigint'),
xmlVals.rowvals.query('Price').value('.','numeric')
FROM @x.nodes('/ds/dt') as xmlVals(rowvals)
SELECT * FROM @data
END
when i pass xml document to proc
i get the error
System.ArgumentException: No mapping exists from object type System.Xml.XmlDataDocument to a known managed provider native type.
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The error means what it says. Don't pass in the XML document, pass in the XML.
Christian Graus
Driven to the arms of OSX by Vista.
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yep u right thanx
i need to pass
ds.GetXml ()
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I have a gridview in an updatepanel (I need this for a partial page postback on sort and paging). I also have a buttonField in my gridview and a panel(div) outside the updatepanel.
How do I hide and show the panel when the buttonField is clicked? My code works without the updatepanel but does not work with the updatepanel. I'm obviously missing something. Any help would be greatly appreciated.
My code structure below:
<asp:UpdatePanel ID="updPnlEmployee" runat="server">
<ContentTemplate>
<asp:GridView ID="grdVWEmployee" runat="server" AllowPaging="True" AllowSorting="True" PageSize="50" AutoGenerateColumns="False" DataKeyNames="Employee_ID" DataSourceID="odsEmployee" OnRowDataBound="grdVWEmployee_RowDataBound" OnRowCommand="grdVWEmployee_RowCommand">
<Columns>
<asp:BoundField DataField="First_Name" HeaderText="First Name" SortExpression="First_Name"/>
<asp:BoundField DataField="Last_Name" HeaderText="Last Name" SortExpression="Last_Name"/>
<asp:ButtonField Text="Eligibility" CommandName="Eligibility" CausesValidation="false"/>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
<asp:Panel ID="pnlGrid" runat="server" CssClass="detail" width="500px" style="display:none">
</asp:Panel>
CODE BEHIND:
protected void grdVWEmployee_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Eligibility")
{
this.pnlGrid.Visible = true;
}
}
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use after
<triggers><asp:postbacktrigger controlid="pnlGrid" xmlns:asp="#unknown">
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Hi,
Thanks for your response, I tried your suggestion but I got the following error:
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.
Parser Error Message: Type 'System.Web.UI.PostBackTrigger' does not have a public property named 'xmlns:asp'.
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I finally got this to work.
I changed the field into a template field and created a LinkButton.
OnRowCreated, I registered the button as a postback control.
protected void grdVWEmployee_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
//Retrieve Item Number column and register button as normal postback
LinkButton btnEligibility = (LinkButton)e.Row.FindControl("btnEligibility");
ScriptManager sm = ScriptManager.GetCurrent(this);
if (sm != null)
{
sm.RegisterPostBackControl(btnEligibility);
}
}
}
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Hello guys!
can anybody give me a list of projects that are deeloped using share point technology.so that I'll practise the microsoft office share point.
thank you
valli
valli
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valli rajya lakshmi wrote: can anybody give me a list of projects that are deeloped using share point technology.so that I'll practise the microsoft office share point.
You should do a simulation of the US economy with the addition of the stimulus package so that we can all see what will happen.
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Just stop now. I'm still laughing and giggling - if anyone walks by my cube they're going to think I'm clinically insane! 
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We are looking either an ASP.NET web toolkit or someone who can assist us for the handling images within a SQL Server database and displaying them. We do not need editing, conversion, PDF. Does anyone know of a ASP.NET DLL toolkit that will do this. More on the requirements below.
We would like to create a web application in ASP.NET for doing web based training for State employees. The concept is to have a set of Courseware pages that the creators of the training content can insert images and text into. Then the students (State employees) will be able to view the images and text from a web browser and takes the courses.
The images for the training content are going to be clipboarded using a very popular and State supported package called SnagIt from TechSmith. From what we understand the native clipboard format for SnagIt is PNG. We do not want to save the snag’ed images to files. The SnagIt product has a wonderful virtual clipboard that eliminates all of the issues with saving images to files and remembering the names later.
The images that are captured using SnagIt and clipboarded will be stored in a SQL Server 2005 database in either an (Image) or (VarByte) data typed column. We do not want to use saved image files with links to the files defined in the SQL Server database and then manage the transfer of the images files between the courseware creator and the web server. Our goal is to simplify the courseware creation using the supported environment and tools (SnagIt).
Our research indicates that you can not write ASP.NET web code that uses the windows clipboard because of security concerns. Many Google’d pages indicate this can only be done with a 3rd party DLL or Active-X components. The State does not allow Active-X but will allow a DLL within the web application.
We have created a test platform with a SQL Server 2005 database and the table with the (Image) data type column in it. We can Snag images and clipboard them into the image column using an MSAccess simple form linked to the database. We can then page through the images using the MSAccess form. We are trying to avoid having to use MSAccess for the courseware development part of this application. We really want the entire solution to be web-based.
Even with the MSAccess form and saved images in the SQL Server 2005 database we can not get a web page to just display the images from the database. We have a number of posting in the ASP.NET forum in an effort to resolve this. We have tried HTTP Handler, byte arrays, memory streams, etc to no avail. We think the issue has to do with us clipboarding the image from SnagIt and how it’s saved using MSAccess. Again we want to avoid any MSAccess in this solution.
We have started research on 3rd party toolkits but so far all of them are for heavy duty image processing, editing, etc. We need a simple data bindable image control for SQL Server 2005.
John H Schuster
Consultant
Phoenix Workgroup COmputing LLC
(517) 927-7400
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John Schuster wrote: The State does not allow Active-X but will allow a DLL within the web application.
The state is then stupid, they end up being the same thing :P
What you need should be easy to write, it's just a bit of code that runs in a web page, and grabs an image from the clipboard, and sends it through to the server.
Here's a thought. The client is running snagit and needs to send you their screenshots, right ? Why does this have to be a web app ? Why not a client side app that sends the images to a webservice or something ?
Christian Graus
Driven to the arms of OSX by Vista.
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Hi there,
I am in a problem..like i have one gridview and the DataKeyNames is say "ID"
i have one imagebutton field for changin the status of a customer in that image button i setup one commandargument field say "StatusValue"..and the CommandName is Status...
when i click status button ie, in the "GridView1_RowCommand" event i need both the values ie ID and StatusValue corresponding to that row....
Can anybody give me a help to solve this...
i am using asp.net 2.0 and c#
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Use the gridviews rowdatabound event.
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
Button Button1 = (Button)e.Row.FindControl("Button1");
DataRowView drv = (DataRowView)e.Row.DataItem;
Button1.attributes.add("id", dvr["id"].tostring());
}
}
I didn't get any requirements for the signature
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