I've been developing an ASP.NET site on an older machine running XP home. I recently got a new Win 7 PC and moved all my project files across. When I try and run the project, I get this error messa...

I need to export private key from Windows store. What should I do if the key is marked as non-exportable? I know that it is possible, program jailbreak can export this key. To export key I use Org...

I am creating RSA key pair using AsymmetricKeyAlgorithmProvider (Windows.Security.Cryptography.Core) and exporting the keys as shown below: AsymmetricKeyAlgorithmProvider rsaGenKeys = AsymmetricK...

I'm trying to create a PublicKey instance using an Oid and RSA public Key but I'm getting a CryptographyException with "ASN1 bad tag value met". I'm following the answer found here to eventually cr...

I'm using the following code in an attempt to programatically allow the NetworkService account to have access to a key: var RSA = new RSACryptoServiceProvider( new CspParameters() { KeyContaine...

While decrypting text using RSACryptoServiceProvider.Decrypt, I am getting the error: Error occurred while decoding OAEP padding. Here's my code: CspParameters cspParam = new CspParameters();...

What is the best way to initate a new RSACryptoServiceProvider object from an X509Certificate2 I pulled out of a key store? The certificate is associated with both public (for encryption) and priva...

I'm currently trying to create an RSACryptoServiceProvider object solely from a decoded PEM file. After several days of searching, I did manage to wrangle a working solution but it's not one that w...

I am creating an tool to manage RSA Key Pairs on Windows since there is no built-in functionality for this and we make extensive use of the RSA encryption features in .NET. The tool provides vari...

I know this is a similar question to this one but before I head down the Bouncey Castle route, does anyone know if its possible to load an RSA KeyPair from a .pem file, e.g.: -----BEGIN RSA PRIVA...

I uploaded a Certificate to Azure KeyVault and obtained "all" access to it using an application registered into the Active Directory. That all works fine. Now I need to load the obtained key ...

I have encrypted a text using RSACryptoServiceProvider. I exported the public and private key. Obviously I just want to expose the public key inside the decoder application, so I have written a cod...

I have the below test which isolates a problem I'm running into using System.Security.Cryptograph.RSACryptoServiceProvider. The problem is that r.Decrypt is throwing exception "Key does not exist"....

I'm trying to initialize RSACryptoServiceProvider with my own public and private keys. As far as I could research, the way to do this is to call the constructor with RSACryptoServiceProvider RSA...

I use RSACryptoServiceProvider in my C# code, and it's working good I could Export RSA XML private and public keys, but for some reason I need to convert this key to *.pem with format (PKCS8 Unencr...

I wrote a code block for Encrypt/Decrypt Streams. The code is working in my local machine. But when I publish my code on web The Decryption functions throws "Bad Data" exception Here is the my Enc...

I copied the source code from one application to another, both running on the same machine. I am also using the same string for containerName below in both applications. What is preventing my new ...

I am trying to decrypt data that has been encrypted previously in RSA (don't worry, I'm supposed to be able to, I have the keys. Nothing illegal :). However, I get a "Bad Key." error at the decryp...

I'm building an application for secure messaging between multiple clients. In order to achieve that, I encrypt the message with AES, then I encrypt the AES key with the recipients public RSA key, t...

I am writing an application that used PKI to secure email, files etc. Using the System.Cryptography namespace, I am generating a new key pair using RSACryptoServiceProvider. The method is: public...

Has anyone using .net actually worked out how to successfully sign a signature to use with CloudFront private content? After a couple of days of attempts all I can get is Access Denied. I have been...

I'm having a problem using a machine level RSA key container when storing only the public key of a public/private key pair. The following code creates a public/private pair and extracts the publi...

I'm currently trying to implement a class to handle secure communications between instances of my app using RSACrytoServiceProveider class. First question : is it a good idea implement a single cl...

I'm trying to encrypt a symetric key with a RSA (Exchange Key in CSP) in C# using this piece of code (the RSA key CSP50C8C7CD is not exportable, and it's in HSM): CspParameters csp_dnet = new CspP...

Having problem with encryption. I gave full permissions to all users to RSA folders. I did C:\>aspnet_regiis -pe "appSettings" -location "web.config" -prov "RsaProtectedCo nfigurationProvider" ...