user/sven/linux.git/include/linux/mpi.h, branch v5.8.8

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 26

2019-05-24T15:27:10Z

Based on 1 normalized pattern(s): gnupg is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version gnupg is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa note this code is heavily based on the gnu mp library actually it s the same code with only minor changes in the way the data is stored this is to support the abstraction of an optional secure memory allocation which may be used to avoid revealing of sensitive data due to paging etc the gnu mp library itself is published under the lgpl however i decided to publish this code under the plain gpl extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 14 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170856.639982569@linutronix.de Signed-off-by: Greg Kroah-Hartman

lib/mpi: headers cleanup

2018-06-08T00:34:39Z

MPI headers contain definitions for huge number of non-existing functions. Most part of these functions was removed in 2012 by Dmitry Kasatkin - 7cf4206a99d1 ("Remove unused code from MPI library") - 9e235dcaf4f6 ("Revert "crypto: GnuPG based MPI lib - additional ...") - bc95eeadf5c6 ("lib/mpi: removed unused functions") however headers wwere not updated properly. Also I deleted some unused macros. Link: http://lkml.kernel.org/r/fb2fc1ef-1185-f0a3-d8d0-173d2f97bbaf@virtuozzo.com Signed-off-by: Vasily Averin Reviewed-by: Andrew Morton Cc: Dmitry Kasatkin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

crypto: rsa - Generate fixed-length output

2016-07-01T15:45:18Z

Every implementation of RSA that we have naturally generates output with leading zeroes. The one and only user of RSA, pkcs1pad wants to have those leading zeroes in place, in fact because they are currently absent it has to write those zeroes itself. So we shouldn't be stripping leading zeroes in the first place. In fact this patch makes rsa-generic produce output with fixed length so that pkcs1pad does not need to do any extra work. This patch also changes DH to use the new interface. Signed-off-by: Herbert Xu

lib/mpi: purge mpi_set_buffer()

2016-05-31T08:41:58Z

mpi_set_buffer() has no in-tree users and similar functionality is provided by mpi_read_raw_data(). Remove mpi_set_buffer(). Signed-off-by: Nicolai Stange Signed-off-by: Herbert Xu

lib/mpi: clean unused SHA1_DIGEST_LENGTH

2015-10-20T14:10:45Z

The define SHA1_DIGEST_LENGTH is not used anywhere, so remove it. Signed-off-by: LABBE Corentin Signed-off-by: Herbert Xu

lib/mpi: Add mpi sgl helpers

2015-10-14T14:23:00Z

Add mpi_read_raw_from_sgl and mpi_write_to_sgl helpers. Signed-off-by: Tadeusz Struk Signed-off-by: Herbert Xu

MPILIB: add mpi_read_buf() and mpi_get_size() helpers

2015-06-16T06:35:06Z

Added a mpi_read_buf() helper function to export MPI to a buf provided by the user, and a mpi_get_size() helper, that tells the user how big the buf is. Changed mpi_free to use kzfree instead of kfree because it is used to free crypto keys. Signed-off-by: Tadeusz Struk Signed-off-by: Herbert Xu

MPILIB: Provide a function to read raw data into an MPI

2012-10-08T03:20:21Z

Provide a function to read raw data of a predetermined size into an MPI rather than expecting the size to be encoded within the data. The data is assumed to represent an unsigned integer, and the resulting MPI will be positive. The function looks like this: MPI mpi_read_raw_data(const void *, size_t); This is useful for reading ASN.1 integer primitives where the length is encoded in the ASN.1 metadata. Signed-off-by: David Howells Signed-off-by: Rusty Russell

lib/mpi: replaced MPI_NULL with normal NULL

2012-02-01T13:23:14Z

MPI_NULL is replaced with normal NULL. Signed-off-by: Dmitry Kasatkin Reviewed-by: Tetsuo Handa Signed-off-by: James Morris

crypto: GnuPG based MPI lib - header files (part 2)

2011-11-09T09:45:26Z

Adds the multi-precision-integer maths library which was originally taken from GnuPG and ported to the kernel by (among others) David Howells. This version is taken from Fedora kernel 2.6.32-71.14.1.el6. The difference is that checkpatch reported errors and warnings have been fixed. This library is used to implemenet RSA digital signature verification used in IMA/EVM integrity protection subsystem. Due to patch size limitation, the patch is divided into 4 parts. Signed-off-by: Dmitry Kasatkin