Custom Assembly in RDL - Need Solution - Very Urgent

Hi All,
I have a Custom .net dll, refered in the RDL, the dll has a function which
gets the encrypted CreditCard# and returns the Decrypted value to the
Report.
I have attached the code @. the end.
I have given created the permission set and code group and copied the dll
in the following location
C:\Program Files\Microsoft SQL Server\80\Tools\Report Designer\
C:\Program Files\Microsoft SQL Server\MSSQL\Reporting Services\ReportServer\
bin\
Now when I run the report I am getting the Credit Card# decrypted shown in
the Preview window of Report Designer.....
But when I deploy the report in my report server I am getting #Error in the
CC# field.
I followed the step in the (http://support.microsoft.com/?
kbid=842419#XSLTH3133121123120121120120) to-grant permissions to a custom
assembly that is referenced in a report in Reporting Services
But there are four steps
1. Assert permissions in your custom assembly.
2. Make the custom assembly available to Report Designer and to Report
Server.
3. Reference the custom assembly in your report.
4. Modify the code access security settings for your custom assembly.
I am not sure with the STEP -1 WHAT ASSET PERMISSION IN CUSTOM ASSEMBLY TO
ADD FOR THE CRPTOGRAPY...because in the link I can see for the textfile and
SQLClinet...
I need your help on this...
Thanks in advance
Balaji.
using System;
using System.Text;
using System.IO;
using System.Collections.Specialized;
using System.Configuration;
using System.Security.Cryptography;
using FCLX509 = System.Security.Cryptography.X509Certificates;
using WSEX509 = Microsoft.Web.Services2.Security.X509;
using WSECRY = Microsoft.Web.Services2.Security.Cryptography;
namespace RDLCustomCode
{
/// <summary>
/// This class is responsible for the data decryption of the
/// user credit card information
/// </summary>
public class DataDecryptionClass
{
public DataDecryptionClass()
{
}
public static string DecryptCardInfo(string cc,string subjectName,string
storeName)
{
string sCreditCard = "";
try
{
FileStream file = new FileStream("C:\\path.txt", FileMode.OpenOrCreate,
FileAccess.Write);
StreamWriter sw = new StreamWriter(file);
WSEX509.X509CertificateStore.StoreLocation location = WSEX509.X509CertificateStore.StoreLocation.CurrentUser;
WSEX509.X509CertificateStore.StoreProvider provider = WSEX509.X509CertificateStore.StoreProvider.System;
WSEX509.X509CertificateStore store = new WSEX509.X509CertificateStore
(provider, location, storeName);
bool fopen = store.OpenRead();
if(fopen)
{
WSEX509.X509CertificateCollection certs = store.FindCertificateBySubjectString(subjectName);
if (certs.Count > 0)
{
WSEX509.X509Certificate cer = certs[0];
WSECRY.RSACryptoServiceProvider rsaCsp = (WSECRY.RSACryptoServiceProvider)cer.Key;
byte[] cipherData = Convert.FromBase64String(cc);
byte[] plainData = rsaCsp.Decrypt(cipherData, false);
sCreditCard = Encoding.UTF8.GetString(plainData);
sw.Write(sCreditCard);
}
}
sw.Close();
file.Close();
if (store != null)
store.Close();
return sCreditCard;
//return cc;
}
catch
{
return "ErrorHandling";
}
}
--
Message posted via http://www.sqlmonster.comDid you get an error ? WHat is the error ? Did you see a .NET stack trace ?
Did you try to put the Assembly in the GAC ? There you check wheter if it is
a permission problem.
HTH, Jens Suessmeyer.
--
http://www.sqlserver2005.de
--
"BALAJI KRISHNAN via SQLMonster.com" <forum@.nospam.SQLMonster.com> schrieb
im Newsbeitrag news:22c746269e61489188230bc4b59e35df@.SQLMonster.com...
> Hi All,
> I have a Custom .net dll, refered in the RDL, the dll has a function which
> gets the encrypted CreditCard# and returns the Decrypted value to the
> Report.
> I have attached the code @. the end.
> I have given created the permission set and code group and copied the dll
> in the following location
> C:\Program Files\Microsoft SQL Server\80\Tools\Report Designer\
> C:\Program Files\Microsoft SQL Server\MSSQL\Reporting
> Services\ReportServer\
> bin\
> Now when I run the report I am getting the Credit Card# decrypted shown in
> the Preview window of Report Designer.....
> But when I deploy the report in my report server I am getting #Error in
> the
> CC# field.
> I followed the step in the (http://support.microsoft.com/?
> kbid=842419#XSLTH3133121123120121120120) to-grant permissions to a custom
> assembly that is referenced in a report in Reporting Services
> But there are four steps
> 1. Assert permissions in your custom assembly.
> 2. Make the custom assembly available to Report Designer and to Report
> Server.
> 3. Reference the custom assembly in your report.
> 4. Modify the code access security settings for your custom assembly.
>
> I am not sure with the STEP -1 WHAT ASSET PERMISSION IN CUSTOM ASSEMBLY TO
> ADD FOR THE CRPTOGRAPY...because in the link I can see for the textfile
> and
> SQLClinet...
> I need your help on this...
> Thanks in advance
> Balaji.
>
> using System;
> using System.Text;
> using System.IO;
> using System.Collections.Specialized;
> using System.Configuration;
> using System.Security.Cryptography;
> using FCLX509 = System.Security.Cryptography.X509Certificates;
> using WSEX509 = Microsoft.Web.Services2.Security.X509;
> using WSECRY = Microsoft.Web.Services2.Security.Cryptography;
> namespace RDLCustomCode
> {
> /// <summary>
> /// This class is responsible for the data decryption of the
> /// user credit card information
> /// </summary>
> public class DataDecryptionClass
> {
> public DataDecryptionClass()
> {
> }
> public static string DecryptCardInfo(string cc,string subjectName,string
> storeName)
> {
> string sCreditCard = "";
> try
> {
> FileStream file = new FileStream("C:\\path.txt", FileMode.OpenOrCreate,
> FileAccess.Write);
> StreamWriter sw = new StreamWriter(file);
>
> WSEX509.X509CertificateStore.StoreLocation location => WSEX509.X509CertificateStore.StoreLocation.CurrentUser;
> WSEX509.X509CertificateStore.StoreProvider provider => WSEX509.X509CertificateStore.StoreProvider.System;
> WSEX509.X509CertificateStore store = new WSEX509.X509CertificateStore
> (provider, location, storeName);
> bool fopen = store.OpenRead();
> if(fopen)
> {
> WSEX509.X509CertificateCollection certs => store.FindCertificateBySubjectString(subjectName);
> if (certs.Count > 0)
> {
> WSEX509.X509Certificate cer = certs[0];
> WSECRY.RSACryptoServiceProvider rsaCsp => (WSECRY.RSACryptoServiceProvider)cer.Key;
> byte[] cipherData = Convert.FromBase64String(cc);
> byte[] plainData = rsaCsp.Decrypt(cipherData, false);
> sCreditCard = Encoding.UTF8.GetString(plainData);
> sw.Write(sCreditCard);
>
> }
> }
> sw.Close();
> file.Close();
> if (store != null)
> store.Close();
> return sCreditCard;
> //return cc;
> }
> catch
> {
> return "ErrorHandling";
> }
>
> }
> --
> Message posted via http://www.sqlmonster.com|||I ve solved similar problem a day before. See this...
Problem is: You dont ve File Permission for your assembly (dll).
Solution:
Step1: Change rrsvpolicy.config with following snippet added-
<PermissionSet
class="NamedPermissionSet"
version="1"
Name="HelloFilePermissionSet"
Description="A special permission set that grants read access to my
hello file.">
<IPermission
class="FileIOPermission"
version="1"
PathDiscovery="C:\inetpub\mailroot"
/>
<IPermission
class="SecurityPermission"
version="1"
Flags="Execution, Assertion"
/>
</PermissionSet>
Step 2: Change Dll with the following code added on class-
[FileIOPermissionAttribute(SecurityAction.Assert,
PathDiscovery="c:\\inetpub\\mailroot\\")]
public class MailSystem
{
public MailSystem()
{
}
............//rest of class.
Step 3: Change Dll with the following code added in Assemblyinfo.cs-
[assembly:AllowPartiallyTrustedCallers]
Note: Please add appropriate namespaces.
:o) It works for sure. and if this doesnt work.. mail
me(suneetmohan@.gmail.com). i'll mail ya complete code.