[PATCH] cipher: Add Classic McEliece mceliece6688128f.

[NIIBE Yutaka]

Hello,

Let us apply the patch of Classic McEliece mceliece6688128f.

(Personally, I need to do this before adding more curves to ECC KEM.)

On Tue, 30 Jan 2024 10:20 +0100, Simon Josefsson wrote:
> This patch adds Classic McEliece mceliece6688128f based on the public
> domain libmceliece code.  What do you think?

On Tue, 30 Jan 2024 16:48 +0100, Werner Koch wrote:
> Seems people want that.

Indeed.  It's good to have different one other than lattice based.

> - I think the name is too long, we should find an abbreviation.
> - C++ comments neeed to be remoced
> - __attribute__ need to be removed or replaced by GGPRT macros.
> - Probably other cleanups.

Let me do these changes after the first push of the patch.

Is there any good shorter name, or an abbreviation?  Libgcrypt tries to
support building by older C compilers (< C99) for older systems.  Older
compiler needs shorter name.
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