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How to change database mirroring encryption with minimal downtime

SQL Server Database Mirroring uses an encrypted connection to ship the data between the principal and the mirror. By default RC4 encryption is enabled and used. The endpoint can be configured to use AES encryption instead, or no encryption. The overhead Read More...
Posted 23 aprilie 2010 22:33 from rusanu.com | (Comments Off)

New attack on AES-256

A new attack improves significantly on previous attacks against AES-256, see: http://schneier.com/crypto-gram-0908.html#8 . This doesn't mean that AES-256 is broken yet, but the surprising bit here is that AES-128 is not susceptible to this particular Read More...
Posted 15 octombrie 2009 03:05 from Laurentiu Cristofor's blog @microsoft.com | (Comments Off)

A discussion of password authentication schemes

I have talked in the past about how passwords for SQL logins are protected in SQL Server (see this post ). I would like to describe this scheme in a more generic way and compare it with the alternative of encrypting the passwords, because I have seen Read More...
Posted 9 mai 2008 22:45 from Laurentiu Cristofor's blog | (Comments Off)