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by TarikHuber
A class for sending emails with Outlook using the default Outlook Account. It includes adding multiple attachments and recipients and choosing to use the default email signature or not.
by ASP.NET Community
It's now possible to create class definitions on the fly.  This is the concept of anonymous types, where the type is based on the signature of the
by Ajcek84
How to properly sign ClickOnce deployment in a way that actually works
by Sauradipta Chaudhury
This is a coding solution to use Application Settings and Connection Strings sections under Configuration Menu in Azure Functions V2.x and above to store configurable entries.

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by Sauradipta Chaudhury
This is a coding solution to use Application Settings and Connection Strings sections under Configuration Menu in Azure Functions V2.x and above to store configurable entries.
by Ajcek84
How to properly sign ClickOnce deployment in a way that actually works
by TarikHuber
A class for sending emails with Outlook using the default Outlook Account. It includes adding multiple attachments and recipients and choosing to use the default email signature or not.
by ASP.NET Community
It's now possible to create class definitions on the fly.  This is the concept of anonymous types, where the type is based on the signature of the

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4 May 2014 by TarikHuber
A class for sending emails with Outlook using the default Outlook Account. It includes adding multiple attachments and recipients and choosing to use the default email signature or not.
16 Jun 2015 by OriginalGriff
You don't.That's the whole idea: it's a private keyAnd even if it was, you wouldn't get such an answer here: there is no legitimate reason for needing that information, and there are a lot on malicious reasons. I would recommend that you drop this line of questioning, and investigation:...
7 Apr 2019 by OriginalGriff
Translating code from one language to another rarely works well, unless they share a common "philosophy" and framework, like VB and C#. But PHP and C# are very, very different: one is an interpreted language, and the other is compiled. They do not share a framework. Converting a (fairly poorly...
27 May 2022 by CPallini
You don't believe in experimental approach, do you? First fix the code (for instance the C++ keyword is class, instead of Class) and then run it (possibly using the debugger or, at least, introducing statements to produce some meaningful output).
27 May 2022 by Greg Utas
You need to show us your actual code. This won't even compile, because there is no ; at the end of Figure #1, which is an empty class definition for which the compiler will generate all the trivial, default member functions.
20 Jan 2013 by Sergey Alexandrovich Kryukov
First of all, it's all already well implemented in .NET. Moreover, the digital signature itself is used in the very basic layers of .NET, first of all, due to the strongly-named assemblies (http://en.wikipedia.org/wiki/Strong_name[^]).So, there is nothing you will really have to implement....
18 Jul 2013 by Naz_Firdouse
this may give you an idea...Creating a User Control to Capture Signatures on a Tablet PC[^]capture signature in java[^]
10 Jun 2014 by ZurdoDev
You'll have to use a 3rd party control. .Net does not natively support capturing signatures. Just google for asp.net signature control. Here's one, http://www.supersignature.com/[^]
19 Jan 2015 by Member 11380736
c# Visual StudioIs it possible to send emails with a digital signature through an exchange server ?I'm able to send emails with EWS Managed API 2.1 (Microsoft.Exchange.WebServices.Data; reference) in c# Visual Studio.But know I want them to have a digital signatureThis is my mail...
10 May 2015 by Member 9378977
I've an assembly in C++/CLI. This assembly is strong named, using Linker options, with a SN.exe generated Key.However, the same strongly named assembly, if it is digitally signed, using signtool.exe, it seems to remove the strong name signature, indeed the strong name validation fails, and...
1 May 2017 by David A. Gray
If it didn't change every time you generated it, breaking it would be vastly simpler. Good cryptographic ciphers, whether used for signatures or to encrypt whole documents, start with a "salt" value that is expected to change every time the cipher is used, even with the same key. The degree to...
26 Jun 2019 by Maciej Los
Please, read comments to the question first. Take a look here: c# - ITextSharp SetVisibleSignature not working as expected - Stack Overflow[^] There's some issue with iText(Sharp) 5.5.7 and higher, which is able to resolve by using code provided in accepted answer.
21 Sep 2019 by Dave Kreskowiak
You cannot use Office Interop in a web application. It's not supported and will fall on it's face when two users hit the thing at the same time. Office does not support being executed from a service and does not support re-entrancy.
20 Dec 2011 by David Catriel
I'm trying to embed a link to LinkedIn in my automatic CodeProject signature, and it contains an IMG tag within a HREF tag. The "" brackets of the IMG tag always end up being replaced by "", and so the link looks like html instead ofshowing an image. Any idea how to fix this?It...
20 Dec 2011 by Sergey Alexandrovich Kryukov
This problem may or may not be solvable. It's quite possible that LinkedIn filter all posts to disallow HTML markup as a security measure, very usual, by the way. You can try to ask this question at LinkedIn, http://www.linkedin.com/answers[^].For a fist step, make sure you have better...
20 Dec 2011 by David Catriel
Thx SA, but I think you went down the wrong path, maybe because my original question was not clear enough. I've now edited it to clarify things a bit.My issues is with links to LinkedIn being embedded in my CodeProject signature. If you add a link to your signature that is composed of a HREF...
26 Feb 2012 by chp845
insert and verify digital signatures in pdf through c++,some one can help me?
26 Feb 2012 by sobingt
You can sign and verify data using CryptoAPI from Microsoft.Microsoft has introduced CNG from Windows vista onwards. So evaluate your requirements.Check out http://msdn.microsoft.com/en-us/library/aa387761%28v=VS.85%29.aspx
6 Apr 2012 by nitin_ias@yahoo.co.in
Hi,Is there any way to sign an XML or Text file using VB6 OR C#. Kindly reply the working code at nitin_ias@yahoo.co.inThanks in advanceand best regards,Nitin
13 May 2012 by chp845
i want to create a signature,i have read the openssl.Is the pkcx#7 signatureinclude the sig data and the cer ?
23 May 2012 by Code-o-mat
Could Rich Ink[^] help?
2 Sep 2012 by gogol_ml
Hello!Please help me with solution to my problem. I'll tell you about the problem.Introduction:I get the xml-document as a string input parameter in my method.Xml-document is: Zip_File_In_Base64     ...
4 Oct 2012 by faisal 121
Hi all Please let me know the process of adding digital signature while approving a document in a document library in sharepoint 2010. The other option is we can prompt the user to enter his password while approving the document, but I am unaware of the process. Can u let me know the...
29 Oct 2012 by joshrduncan2012
Hi everyone,I am looking for suggestions from anyone regarding how to acquire digital signature certificates. What is the most popular place to acquire them? Are there any that can be free or do you have to purchase them? I'm about to deploy my first Windows Forms project and I'm new to...
29 Oct 2012 by Sergey Alexandrovich Kryukov
Please see:http://en.wikipedia.org/wiki/Certificate_authority#Providers[^].Please read the whole article to get more understanding of the technology, purpose and available options. As one option, consider making a self-signed certificate, which you can create, say, using...
26 Dec 2012 by janprasil
Hello,I got a VB.NET script which makes a PDF document signed. It means - insert a signature and a timestamp. But the final document is not verified and it shows that the signature is not valid: "this document has been altered or corrupted"Here is the code:certificateData =...
26 Dec 2012 by Zoltán Zörgő
Is the signer root certificate installed in windows? Is the Windows Certificate store trusted by the Pdf viewer? Supposing Acrobat, see this article: http://blogs.adobe.com/security/2008/08/setting_signature_trust_in_ado_2.html[^] (the settings described there are still valid)
1 Jan 2013 by parths
Hi, Wintrust.h and wincrypt.h use type definitions and / or macros which are defined in or indirectly from windows.hThis means that windows.h must be included before the wincrypt and wintrust headers.It seems (from the error listing you posted above) like you include hierarchy does...
20 Jan 2013 by vjena
Hi everyoneI'm a begginer in cryptography, and soon we will have an assignment to implement digital signature. I've seen around for dome tutorials or step by step implementations, but can't find anyIf you could be nice to direct me on some simple examples, aplications or implementations i...
4 Feb 2013 by NeverJustHere
I agree with Mike, you need the company legals to define how strict your requirements are. You need to ask who do we trust, if the data is just in the database, do we need a system that prevents a DBA modifying supposedly signed records??I know of a system used to track drug samples left...
6 Apr 2013 by iDebD
Hi, I am signing a Setup.exe following Exe signing process?[^]It is successfully signing this Smart installer Setup.exe but corrupting it; I have tried with other simple console applications and mfc or win32 exe signing through this process and they are successfully signed as well as...
27 May 2013 by Farrukh Zohaib Arien
Greetings,I am trying to create an application through which a designer with no direct access to exchange server can put HTML disclaimers and application can then save that HTML to an already created disclaimer rule on exchange.For the purpose I would like to know if is there any...
28 May 2013 by jagdish123061
Hello Developers,I want to implement digital signaturing in asp.netI want to use a dongle to provide digital signature.without dongle any kind of transaction could not be done.like to approve entries....Please help me guys its urgent...
28 May 2013 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)
I am not sure what do you mean by Dongle and all.But I am providing you some good links to learn about Digital Signature..NetHow to Sign and Verify the signature with .NET and a certificate (C#)[^].Cryptography And .NET - Part 5 (Digital Signatures)[^].Implementing Digital...
16 Jul 2013 by Mehwish Wajiuddin
Hi,We have a requirement to capture a signature on the tablet in 3 byte ASCII format and then base64 encoding on it. Maximum characters allowed is 1024 only.The requirement is for browser based thin clientThanks
3 Sep 2013 by ProgrammerX1
I am having a problem parsing out this xml file using XmlElement, the proposed solutions online suggests work-arounds by referencing SAML methods but that does not work for my xml. Any ideas on how to get the XmlElement of SignatureValue? current error is "Malformed element Signature" at line:...
3 Sep 2013 by idenizeni
Your question's XML is malformed. You need to fix your XML.These lines are malformed... The above should probably be... These lines are malformed...
11 Oct 2013 by ASP.NET Community
It's now possible to create class definitions on the fly.  This is the concept of anonymous types, where the type is based on the signature of the
13 Feb 2014 by sarath1er
Hi,I am developing a wpf application. That needs to implement login process using digital signature. Is it possible? Any one can suggest a solution?Thanks in advance.
17 Sep 2014 by Member 7692845
Solution 1:byte[] fileData = File.ReadAllBytes(fileFullName);ContentInfo contentInfo = new ContentInfo(fileData);SignedCms signedCms = new SignedCms(contentInfo, true);signedCms.Decode(fileData);Solution 2:byte[] fileData = File.ReadAllBytes(fileFullName);SignedCms...
24 Nov 2014 by Member 11261385
I have been going crazy trying to figure this out, and I am not that great at coding, considering I've only done it back when I was in high school. I have created an Email signature for my company, and I did it on photoshop. It was all good until the format needed to be changed around and my...
25 Nov 2014 by Senthilnathan Vaithi
Hi,Give your image path us absolute URL like below.suppose your application URL is www.test.com and image name is SignPic.jpegthen Thanks
29 Jan 2015 by Rambo_Raja
I want to know how to digitally sign a XML file in ASP.NET C# using USB token?I want to know how to get certificates from the mosearbear USB token and using the private key contained in it digitally sign a XML file?As the USB is on client machine and i want to sign the XMl file on client...
25 Apr 2015 by General0
Hi,Does anyone know how is it possible with C# to get digital signature from x509 certificate (which is actually in x509Store and not to validate from file) and to show it for example in textbox. I know that GetRawCertDataString() returns the raw data for entire x509 certificate which includes...
6 May 2015 by General0
How is it possible to get signature Value from signed PDF file? I can get all other data from signature except its value. Is there any way to get it in C#? PdfPKCS7 pk;PdfReader reader = new PdfReader(PdfFilename);AcroFields af = reader.AcroFields;var names =...
11 May 2015 by KarstenK
Yes you have to do it. Signing is a process from inside to the outside!!!My experience by using the MageUI-Tool: it is best to sign only once and avoid resigning. And I have reloaded all files in the manifest to update the hashes.
29 Oct 2015 by Korathu123
Why the exception "Cannot Find Original Sender" is coming on verifying a signed certificate?I am verifying a digitally signed certificate using signedcms. But on calling the method CheckSignature I am getting the exception "Cannot Find Original Sender".Digital Signature Verification Code...
21 Nov 2015 by Member 12156917
[Storing saeed123123]keytool error: java.io.FileNotFoundException: saeed123123 (Access is denied)java.io.FileNotFoundException: saeed123123 (Access is denied) at java.io.FileOutputStream.open0(Native Method) at java.io.FileOutputStream.open(FileOutputStream.java:270) ...
16 Mar 2016 by Member 12393967
Hellomy question concerns a .NET MVC5 app deployed on IIS7. I've tried to digitally sign PDF documents by iTextSharp API, and it's OK when debugging in Visual studio (VS2013), but on IIS the program throws an exception:System.Security.Cryptography.CryptographicException: Une erreur interne...
10 Jun 2016 by Member 12179018
hi everybody, i'm trying to develope a web application to be able sign a pdf document, so i need the client digital signature to sign it, i found a lot of code that describe to do this, but not something clear for a web application,i would like to someone help me how can to do that, thanks in...
22 Jun 2016 by Member 12179018
hi everybody, someone knows how i can get a certificate from usb token using cryptoapi calls in c#, recently I could to get just for certificate store, but now I want to get from any usb token or card reader, without install the certificate, in advance thanks...What I have tried:public...
30 Apr 2017 by Alex2 101
I am signing an xml file using RSA Algortithm but on validation the same fails if the tag format changes. Signing validation is failing with below format. Getting Malformed element Signature as error
1 May 2017 by Alex2 101
I want to verify signature using RSA 256 Algorithm in asp.net with c#. On verifying the signed Original Message as bytes following issue comes (invalid characters). Signed original message as below: 1:F01BNZWOMRXAXXX0001000001}{2:I102CBOMOMRUXACHN}{3:{113:0100}}{4: :20:BNZW0M00017DW...
2 May 2017 by Richard MacCutchan
You already posted this question at How to verify signature using RSA 256 algorithm in ASP.NET with C#?[^]. Please do not repost.
24 May 2017 by Alex2 101
I want to generate Signature of a Xml content with current date using RSA Algorithm. I am generating the Signature for Xml with date while generating signature but getting signature mismatch . Updated my code as below. What I have tried: My code is as below: byte[] contentbytes =...
25 May 2017 by RickZeeland
Here is a good CodeProject article about it: Swanky Encryption/Decryption in C#[^] Quote: Because of the good performance and because AES is the "new" FIPS standard from November 26, 2001 you should probably always go for AES_256_CBC. This will ensure good security and performance.
2 Aug 2017 by Levent Yağcıoğlu
Hello everyone, I wanna ask question about RSA sign on C#. I have one document for sign. I have plain hex values of modulus, private exponent and public exponent. I dont' t want to signing with random generated keys. When I try with sign with sign tool, i have got result perfectly. But i can'...
2 Aug 2017 by Thomas Daniels
You can create an RSAParameters instance: RSAParameters Structure (System.Security.Cryptography)[^] And then pass those in an RSACryptoServiceProvider[^]: RSAParameters parameters = new RSAParameters { D = ..., DP = ..., .... }; using (RSACryptoServiceProvider rsa = new...
10 Sep 2017 by OriginalGriff
f it's not a question, don't post it under QA: use the forums instead. This would be appropriate: The Lounge[^] I'll delete this for you so you don't get downvoted. You never know, you might come back one day...
6 Apr 2018 by Member 13603741
I've built a mini-kernel from scratch following some tutorials , and now i want to ensure that when i boot-up my system using a boot-loader i want from this one to hash and verify if it's my real system or an infected one !? using the hash and signature mechanism!! so please if someone could...
18 Apr 2018 by Member 13785991
Hello, I am trying to make responsive email signature. It works on some client but gmail does not work at all. And have no idea what I can do more to make it work. What I have tried:
21 Jan 2019 by Member 14124862
I'm currently developing a .AAR android library and I would like to sign the released library with my own key so that I can determine if a fake aar with the same name and functionality has been released by mine or not. I also want to be able to check the authenticity of my library...
21 Jan 2019 by Richard MacCutchan
See How to Implement a Provider[^].
8 Apr 2019 by AtulSharma609
Hello can anyone help me do this , i do not know PHP and i have to do this in asp.net c# function sign_ipn($reply, $token) { ksort($reply); $flat_reply = ""; foreach ($reply as $key=>$value) { $flat_reply = $flat_reply."$key=$value&"; } $flat_reply =...
26 Jun 2019 by ranio
I want to apply Digital Signature to PDF with multiple pages in asp.net wit c#. I am using Itextsharp dll. I tried using pdfsignature class and was able to set the digital sign, But I need to apply multiple signatures to the PDF. I am able to apply only to a single page even on clearing a new...
28 Sep 2020 by Member 13029506
0 I am trying to access the data of the signature_pad from the view, but I am having difficulty, and don't know what steps I should take next. I was following a tutorial on youtube on how this plugin works, which is -...
11 Oct 2021 by alsecc
Hi, I'm developing a kernel driver for Windows and recently MS deprecated the procedure to sign drivers, see...
21 Oct 2021 by yasmine chouillaj
hey guys, I recently made an email signature using photoshop (slicing method), it's working fine on Gmail and even in my server (Roundcube) except for outlook, it's showing a white space between every slice.. how can I fix that please, it's been...
27 May 2022 by Phoenix Liveon
If we declared an Object/Class, such as; ClassOne classOne; with a class definition of;//Figure #1 class ClassOne { } //Figure #2 class ClassOne { ClassOne(int, int); } //Figure #3 class ClassOne { ClassOne(const ClassOne&); } ...
15 Mar 2023 by Gcobani Mkontwana
Hi Team I have a button to clear the signature but its not clearing and have used the correct library signaturepad_min.js latest one. There are no errors from the console browser. What could be the problem? What I have tried:
3 Jan 2024 by mickohan
Friends, I am able to unmarshall signature block for most of the cases with below code. However its failing to unmarshall for STRTransform case. Can someone guide me? Exception: Exception in thread "main" javax.xml.crypto.MarshalException:...
23 Apr 2014 by Jayachandran09
I want to read the signature from Usb token safenet (alladin etoken pro 72 k(Java)) and attach to pdf. I dont know how to do this. In previously they given an option to export .pfx file. Now they are giving an option to export .cer file. When i googled i get this code. When i run this code works...
23 May 2012 by Member 4436783
I'm working with an MFC C++ dialog based application that is calling a small external signature capture executable, getting a customer signature, then exiting back to the main calling program. I'm looking to incorporate the signature capture internally in the main application, but have been...
4 Feb 2013 by jabit
What constitutes a "legal" digital signature for a web form (not a document)?OPTION 1: I worked on a project where a doctor makes notes on the health of a patient. When the web form is submitted a PDF is generated and digitally signed with a digital .CER certificate and the PDF is saved to...
6 Apr 2018 by Rick York
First think about exactly what it is you want to authenticate? Likely it is a file. Common ways to do that are a checksum or CRC. One simple way to do this is to reserve the first four or last four bytes of the file to be the checksum bytes. Then read the file, except for the checksum, and...
8 Apr 2019 by AtulSharma609
private void getResponce() { string requestJson = string.Empty; using (StreamReader reader = new StreamReader(System.Web.HttpContext.Current.Request.InputStream)) { requestJson = reader.ReadToEnd(); string returnUrl =...
15 Jan 2018 by Ajcek84
How to properly sign ClickOnce deployment in a way that actually works
22 Dec 2012 by lilyNaz
I am writing a driver and I need to check the signature of a PE file in it. I know how to do it in user mode and it works fine according to http://forum.sysinternals.com/topic19247.html[^] but now I need to do the same in my driver, I can not use the headers like "wintrust.h" in my driver so I...
16 Dec 2021 by Sauradipta Chaudhury
This is a coding solution to use Application Settings and Connection Strings sections under Configuration Menu in Azure Functions V2.x and above to store configurable entries.
24 Apr 2019 by Christian Graus
Have you saved the PDF with the signature on it? Do you have a PDF which shows the signature on it?
15 Feb 2021 by Uriel Tinashe Patsanza
i need my client to sign on web form when the job is done, that signature is then saved as a binary string/base64 string under column clientSignature in sql database.so that when i am printing my report i can pull the clients signature as image from the selected job row. hope that makes...
31 Mar 2014 by rjrohit2303
I am trying to add signature line to a word document. I want to do it using code, when I run my code I see below dialog. How do I hide this dialog ?http://i.stack.imgur.com/3seVf.jpg[^]This is the code I am using.SignatureSet signatureSet = doc.Signatures;object sigID =...
21 Jun 2013 by tovares
'Verify certificate in pdf via vb.net Dim theForm As Acrobat.CAcroPDDoc Dim jso As Object theForm = CreateObject("AcroExch.PDDoc") theForm.Open("C:\Temp\Maru\DeclaracionJurada.pdf") jso = theForm.GetJSObject 'Verifica que la...
16 Jun 2015 by Riccardo Macaluso
Hello to everyone,how can I do to extract private key from smartcard?Thank you very much,Riccardo.
25 May 2017 by Alex2 101
I want to encrypt and decrypt a string using AES Algorithm in asp.net with c#. I want to encrypt a string with a key that can be randomly generated and decrypt and get the string encrypted in AES Algorithm. I tried encryption and decryption in AES but decrypted value is not matching with the...
1 May 2017 by Alex2 101
The signature value getting generated for a file is getting changed each time on applying signature using RSA 256 algorithm. What I have tried: RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(); // Creates a new RANDOM key. RSAParameters privatekey =...
24 Apr 2019 by Member 14330053
i had a preview of the pdf and saved it as well when sent on mail.But the signature image is not showing in the respective field.
21 Sep 2019 by Shannaz
i have this worry, i have been able to work on a solution that implements signature and signs an MS Word document. now the worry I have is, it works fine when i run it direcrtly from Visual Studio, but when i take it to IIS directly, it does not respond or behave. I have been able to configure...
28 Sep 2020 by Richard Deeming
Looks like you're looking for this library: GitHub - szimek/signature_pad: HTML5 canvas based smooth signature drawing[^] The GitHub project has plenty of documentation on how to install and use the library.
7 Mar 2023 by Gcobani Mkontwana
Hi Team I am struggling if it will be possible to save a signature as a file format to the db record, i need some help the only example i seen so far are store it locally. What I have tried: // HTML code