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01474b70a7
The private key in ctx->private_key is currently initialized in reverse byte order in ecdh_set_secret and whenever the key is needed in proper byte order the variable priv is introduced and the bytes from ctx->private_key are copied into priv while being byte-swapped (ecc_swap_digits). To get rid of the unnecessary byte swapping initialize ctx->private_key in proper byte order and clean up all functions that were previously using priv or were called with ctx->private_key: - ecc_gen_privkey: Directly initialize the passed ctx->private_key with random bytes filling all the digits of the private key. Get rid of the priv variable. This function only has ecdh_set_secret as a caller to create NIST P192/256/384 private keys. - crypto_ecdh_shared_secret: Called only from ecdh_compute_value with ctx->private_key. Get rid of the priv variable and work with the passed private_key directly. - ecc_make_pub_key: Called only from ecdh_compute_value with ctx->private_key. Get rid of the priv variable and work with the passed private_key directly. Cc: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Acked-by: Jarkko Sakkinen <jarkko@kernel.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 reStructuredText 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.