The CONTRIBUTING.md requests an (or multiple) SPDX identifier for GPL
licenses. But a lot of packages did use a different, non-SPDX style with a
"+" at the end instead of "-or-later".

Signed-off-by: Sven Eckelmann <sven@narfation.org>

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

OpenSSL is only used for hashing while being a huge dependency (689.4KB
for mips_24kc.

Cryptsetup also supports and recommends argon2 for hashing, which is not
provided by OpenSSL.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Add several configure arguments to speed up build time.

Switch from using libgcrypt to using the kernel directly.

This has a number of benefits including smaller size and faster speed. It
also allows selection of desired crypto primatives instead of having all
of them.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Part of a wider housekeeping effort on the packages repository.

Signed-off-by: Alberto Bursi <alberto.bursi@outlook.it>

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

and bump version to 1.6.6 and switch to kernel.org mirror

Signed-off-by: Daniel Golle <daniel@makrotopia.org>