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6ee41e5420
The recently added helper routine to perform key strength validation of triple DES keys is slightly inadequate, since it comes in two versions, neither of which are highly useful for anything other than skciphers (and many drivers still use the older blkcipher interfaces). So let's add a new helper and, considering that this is a helper function that is only intended to be used by crypto code itself, put it in a new des.h header under crypto/internal. While at it, implement a similar helper for single DES, so that we can start replacing the pattern of calling des_ekey() into a temp buffer that occurs in many drivers in drivers/crypto. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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.