To deploy Open Client applications, each client computer needs the Sybase Open Client product. You must purchase the Open Client software separately from Sybase. It contains its own installation instructions.
When you use a TDS client (either Open Client or jConnect based), you have the option of sending the connection password in clear text or in encrypted form. The latter is done by performing a TDS encrypted password handshake. The handshake involves using private/public key encryption. The support for generating the RSA private/public key pair and for decrypting the encrypted password is included in a special library. The library file must be locatable by the SQL Anywhere server in its system path. For Windows, this file is called dbrsakp12.dll. There are both 64-bit and 32-bit versions of the DLL. On Linux and Unix environments, the file is a shared library called libdbrsakp12.so. On Mac OS X, the file is a shared library called libdbrsakp12_r.dylib. The file is not necessary if you do not use this feature.
Connection information for Open Client clients is held in the interfaces file. For information about the interfaces file, see the Open Client documentation and Sybase Open Server configuration.
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