A runtime, architecture, and libraries for Microsoft Windows used for creating applications.

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What are the security features of the Microsoft PasswordVault class?

There doesn't seem to be much information on the PasswordVault but it seems to provide for local encryption of credentials. There are references to it in this source code and this blog. The reason ...
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76 views

DPAPI Distributed key manager

I have a number of configuration files and binary data that needs to be stored encrypted on disk. Only the user who encrypted should be able to decrypt the information. So far, I have successfully ...
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142 views

Is XSP suitable for Internet facing, production hosts? (either self hosted, as an Apache plugin, or FastCGI)

XSP is portable version of ASP.NET that allows for operation on OSX, Linux, and Windows. It's an alternative to IIS, and hosts its own web server, or can plug into existing web servers such as ...
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69 views

OAuth2 Authorization and Resource server certificates

I'm implementing a custom IAuthorizationServerHost using DotNetOpenAuth library. Example implementation uses two certificates for CreateAccessToken (see Listing 6): public AccessTokenResult ...
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166 views

How to use IIS ssl certificate(CNG) for data encryption

I want to use RSA to encrypt/decrypt some data using IIS's ssl ceritifcate, from within a web service(WCF). I've managed so far to do this by using .NET security ...
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44 views

Token-based authentication for specific requirement

We have the following requirement for creating a token in .NET to be used in providing a challenge token and an actual authentication (auth) token. The auth token will then be used to authenticated ...
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81 views

Distribution of a public key with a dotnet client application?

I have a pretty good understanding of X509 cryptography etc, from my career in the smart card industry. So I know that the card scheme (e.g. Visa, MasterCard) is the highest level of trust - they sign ...
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63 views

authentication model using oAuth

I am planning to use facebook authentication for my website window.fbAsyncInit = function() { FB.init({ appId: 'APPID', cookie : true, xfbml : true, version : ...
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Securing customer assets in .NET

We are rethinking our security and came on an interesting issue. How can me make a generic security implementation for customer owned assets. Does every asset need a direct-indirect relation to a ...
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114 views

Why do we need salt and RFC in generating AES encrypted message

I'm not very familiar with encryption and new to this, I'm just learning it right now by code review of one of the class we have in an application to encrypt a password using AES. Would anyone explain ...
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88 views

SSRS custom assembly security issues

I want to invoke a custom assembly that uses protected services (like DirectoryServices, etc...) with reporting Services. On the web, I see a recurring example of configuration (inspired by this ...
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199 views

Login Authentication with SSL and HMAC

My question is pretty similar to : http://stackoverflow.com/questions/5487757/using-hmac-sha1-for-api-authentication-how-to-store-the-client-password-secure. Basically, I want to write an API for my ...
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329 views

Bouncy Castle C# API and NTRUEncrypt

I want to play around with NTRUEncrypt and I found this tweet that NTRUE is now part of bouncy castle. But I cannot find any proof of the existence in the source code of teh Bouncy Castle C# API, ...
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126 views

What are some good design practices for cross-platform certificate storage?

Question from the Bouncy Castle development list: At present we use the Windows certificate store as: var store = new X509Store(StoreName.My, StoreLocation.LocalMachine); ...
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Is this c# digital signature implementation secure?

The code connects multiple clients to a server using TCP sockets asynchronously. I have added code to attach a digital signature to the outgoing messages from the server, to authenticate the message ...
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0answers
54 views

How to prevent injection attacks powerscript scripts when dealing with user made variables

I have a large number of scripts with code looking like this: task "$argument" Which is then called by: powershell.Runspace.SessionStateProxy.SetVariable(argument, UserMadeValue); ...
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146 views

Public/Private key validation

Suppose I have this scenario: User --> Inputs License Key --> I validate it --> If success, good, move onto main window. If not, prompt the user to reenter the license key. The license key will not ...