Certificate Creation Tool (Makecert.exe)

The Certificate Creation tool generates X.509 certificates for testing purposes only. It creates a public and private key pair for digital signatures and stores it in a certificate file. This tool also associates the key pair with a specified publisher's name and creates an X.509 certificate that binds a user-specified name to the public part of the key pair.


http://msdn.microsoft.com/en-us/library/bfsktky3(v=vs.80).aspx