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Lei He bd258be9a8 crypto: testmgr - Fix wrong test case of RSA
[ Upstream commit a9887010ed ]

According to the BER encoding rules, integer value should be encoded
as two's complement, and if the highest bit of a positive integer
is 1, should add a leading zero-octet.

The kernel's built-in RSA algorithm cannot recognize negative numbers
when parsing keys, so it can pass this test case.

Export the key to file and run the following command to verify the
fix result:

  openssl asn1parse -inform DER -in /path/to/key/file

Signed-off-by: Lei He <helei.sig11@bytedance.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-03-13 12:50:47 +01:00
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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.