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  • Blog Post: Authenticated Symmetric Encryption in .NET

    Over the last week, we've made a couple of updates to our Codeplex projects to add authenticated symmetric encryption to the managed cryptography surface area for the first time. Since we've never supported authenticated symmetric algorithms in managed code before, I thought I'd run though some basics...
  • Blog Post: CLR Inside Out: Digging into IDisposable

    My third MSDN magazine article, Digging into IDisposable , appeared in this month's issue in the CLR Inside Out Column. It's a bit of a departure from my usual security fare; this time looking at how to best handle writing class libraries that must manage resources. Also in this month's issue, Kenny...
  • Blog Post: Elliptic Curve Diffie-Hellman

    The second elliptic curve algorithm added to Orcas is elliptic curve Diffie-Hellman, as the ECDiffieHellmanCng class. This is the first time Diffie-Hellman is available as part of the .NET Framework, so lets take a quick look at what it is and what it does. Diffie-Hellman is one of the oldest asymmetric...
  • Blog Post: Elliptic Curve DSA

    Yesterday I gave a quick rundown of all the new cryptographic algorithms available in the Orcas January CTP . Today, let's dive in a little deeper to the first of the elliptic curve algorithms, ECDSA. (ECDSA, along with the rest of the CNG classes in the .NET Framework, is only available on Windows Vista...
  • Blog Post: New Crypto Algorithms in Orcas

    The January CTP of Orcas is now available , and with it comes a total of 12 new cryptography algorithm implementation classes, which include 2.5 new algorithms. (I'll count AES as 0.5 since we did already have Rijndael :-) ). These classes also are the first set of managed wrappers around the new CNG...
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