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4da57a2fea
Rework and extension of the cca_findcard function to be prepared for other types of secure key blobs. Split the function and extract an internal function which has no awareness of key blobs any more. Improve this function and the helper code around to be able to check for a minimal crypto card hardware level (Background: the newer AES cipher keys need to match to the master key verification pattern and need to have a crypto card CEX6 or higher). No API change, neither for the in-kernel API nor the ioctl interface. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Ingo Franzki <ifranzki@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.