# Operating Systems

If you haven't already, please first read the OverView document and then come back here.

## Linux

- Most people can use the packages provided by your distribution (in the core or in the contrib section). You probably want to install OpenSSL, OpenCT, OpenSC, libp11, engine_pkcs11 and maybe pam_p11 or pam_pkcs11 for authentication (or PCSC-Lite and some driver for it instead of OpenCT).

- If you want to compile OpenSC, you need to install either OpenCT or PCSC-Lite first, to use those drivers/middleware. Install both the runtime and the development package. Also it is highly suggested to install OpenSSL (including development) as some smart card drivers require it. If you want to use the signer applet in mozilla, you also need libassuan from the gnupg (like always, both runtime and development packages). See QuickStart for configure options and testing if OpenSC works.

- Developers can work on tar.gz files, like the latest release, or the nightly snapshots provided on http://www.opensc-project.org/files/opensc/snapshots/
- Developers can also check out the current source code using subversion. See SubversionReposity? for details. You will need autoconf, automake and libtool at least. "make dist" uses wget to download the wiki and xsltproc to create html files and man pages, and svn to create the ChangeLog?.

## Mac OS X

- Mac OS X installer is available for 10.4.4 and later.

## Windows

- Windows NT, 2000 and XP contains the windows smart card middleware. For older versions you can download it from Microsoft.com (FIXME: Name, download link, ...)

- You might be best off with our installer package containing OpenSSL, OpenSC, Libp11, Engine_pkcs11 and Putty. The latest version is available on at the smart card bundle project page.

- Note that applications like Outlook or Internet Explorer as well as many other Windows native application use the so called Crypto API. If you combine OpenSC with a Crypto Service Provide those applications can use Smart Cards without any change. More details on the WindowsCSP page.