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Questions tagged [rsacryptoserviceprovider]

The RSACryptoServiceProvider object performs asymmetric encryption and decryption using the implementation of the RSA algorithm provided by the cryptographic service provider (CSP).

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Decrypting with private key from .pem file in c# with .NET crypto library

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 PRIVATE KEY----- …
Tim Jarvis
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.Net: Will my RSA keys still function after August 2012?

I just read this article RSA keys under 1024 bits are blocked, and in my .NET software I make extensive use of 384bit keys. Will my program still be able to generate/store/read keys from the MachineKeyStore using the RSACryptoServiceProvider? Or…
Maestro
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Implementing RSA in C#

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 class to handle sender/reciever roles or should i…
gogole
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CryptographicException intermittently occurs when encrypting/decrypting with RSA

I'm trying to encrypt and decrypt data using RSA in C#. I have the following MSTest unit test: const string rawPassword = "mypass"; // Encrypt string publicKey, privateKey; string encryptedPassword = RSAUtils.Encrypt(rawPassword, out publicKey,…
Sarah Vessels
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"Bad Version of provider." while loading the Public key with RSACryptoServiceProvider

I am creating RSA key pair using AsymmetricKeyAlgorithmProvider (Windows.Security.Cryptography.Core) and exporting the keys as shown below: AsymmetricKeyAlgorithmProvider rsaGenKeys =…
tavier
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How to encrypt Amazon CloudFront signature for private content access using canned policy

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 working with variations of the following code and…
Chet
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"Key does not exist" exception thrown. What am I doing wrong?

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". If I use privateKeyXml for both the encryption…
Frank Schwieterman
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How to check if a key already exists in container?

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, then I send these two components (RSA-encrypted AES…
Rob
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Encrypting data using RSACryptoServiceProvider has what seems to me as a bizarre feature

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Security.Cryptography; using System.IO; namespace EncryptionTest { class Program { static void Main(string[] args) { …
Arieh
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Importing RSA public key from XML using RSACryptoServiceProvider sets property PublicOnly to false

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 various functions such as listing existing RSA key pairs,…
CarlR
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Convert RSACryptoServiceProvider RSA XML key to PKCS8

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 Unencrypted) my private key like …
Tarek El-Mallah
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Web.config Encryption Error

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" Encrypting configuration section... An error occurred…
BKarms
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Why does RSACryptoServiceProvider.VerifyHash need an LDAP check?

I recently encountered an odd problem with RSACryptoServiceProvider.VerifyHash. I have a web application using it for decryption. When users running the web service were doing so over our VPN it became very very slow. When they had no connection or…
Keith
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EncryptedXml DecryptDocument method throws "Bad Data" exception

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 Encrypton and Decryption functions private static…
srcnaks
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Generate public-private key pair and show them in textbox in asp.net

any body can explain the parameters of RSAParameters i had seen the parameters like p,d,e,q,... i need the private key and public key from it i got the…
user752303
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