dotConnect for MySQL support OpenSSH or IETF SECSH key files. You may use such utilities as 'ssh-keygen.exe' or 'puttygen.exe' for generation of the corresponding public/private key pair.
For example, the IETF SECSH can have the followink look:
---- BEGIN SSH2 PUBLIC KEY ---- Comment: "rsa-key-20090722" AAAAB3NzaC1yc2EAAAABJQAAAIEAjidZERzyvAUjQqOSCA2H5BWOKAamB2qgb0/f ak35AKnqvcuOeiJyqlmqz7/49oKa6T6+EjXp+pMbzTK0+YIn9Kg88jjnHJHA4D7s cGN7TQ6mY/dhht7VmkdTVVn5orbmnyTroZq2Ruj4Vus9xl57DFCdZFTnMMO4ruHL x+9PFHU= ---- END SSH2 PUBLIC KEY ----
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2