FairplayKSM

C Bridging module for Fairplay Server

Setup instructions

First, you need the FairPlay Streaming Server SDK v4.4 from Apple (Requires Developer Program Membership).

Place the .h files of the Reference Server Implementation into include and the .c files into source (ignoring SKDCredentials.h).

Then you have to go to the file SKDServerUtils.c and change line 480 to the following (inside method SKDServerRSADecryptKey):

    pKeyBio = BIO_new_mem_buf((void *)pKeyPem, pKeyPem_s);

As a next step, delete both the functions SKDServerFetchContentKeyAndIV() and SKDServerGetASK() in the same file.

Then use the following commands:

cmake .
cmake --build .
sudo cmake --install .

The you can run test.py with python3 test.py

Dependencies

You need at least OpenSSL and Python installed (python3.9-dev libssl-dev apt-packages)

Options

PS_DEBUG

By default, the KSM outputs lots of debug stuff. To disable, change PS_DEBUG to 0 in SKDServerUtils.h.

Code-Docs

https://docs.python.org/3/extending/extending.html#compilation-and-linkage

Usage

Place the following items in test_data:

dev_private_key.pem spc.bin