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path: root/SoftHSMv2/m4/acx_botan_gost.m4
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AC_DEFUN([ACX_BOTAN_GOST],[
	AC_MSG_CHECKING(for Botan GOST support)

	tmp_CPPFLAGS=$CPPFLAGS
	tmp_LIBS=$LIBS

	CPPFLAGS="$CPPFLAGS $CRYPTO_INCLUDES"
	LIBS="$CRYPTO_LIBS $LIBS"

	AC_LANG_PUSH([C++])
	AC_RUN_IFELSE([
		AC_LANG_SOURCE([[
			#include <botan/init.h>
			#include <botan/gost_3410.h>
			#include <botan/oids.h>
			#include <botan/version.h>
			int main()
			{
				Botan::LibraryInitializer::initialize();
				const std::string name("gost_256A");
				const Botan::OID oid(Botan::OIDS::lookup(name));
				const Botan::EC_Group ecg(oid);
				try {
#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,11,0)
					const std::vector<Botan::byte> der =
					    ecg.DER_encode(Botan::EC_DOMPAR_ENC_OID);
#else
					const Botan::SecureVector<Botan::byte> der =
					    ecg.DER_encode(Botan::EC_DOMPAR_ENC_OID);
#endif
				} catch(...) {
					return 1;
				}

				return 0;
			}
		]])
	],[
		AC_MSG_RESULT([Found GOST])
	],[
		AC_MSG_RESULT([Cannot find GOST])
		AC_MSG_ERROR([
Botan library has no valid GOST support. Please upgrade to a later version
of Botan, above or including version 1.10.6 or 1.11.5.
Alternatively disable GOST support in SoftHSM with --disable-gost
])
	],[])
	AC_LANG_POP([C++])

	CPPFLAGS=$tmp_CPPFLAGS
	LIBS=$tmp_LIBS
])