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-rw-r--r--SoftHSMv2/m4/acx_botan_ecc.m451
1 files changed, 51 insertions, 0 deletions
diff --git a/SoftHSMv2/m4/acx_botan_ecc.m4 b/SoftHSMv2/m4/acx_botan_ecc.m4
new file mode 100644
index 0000000..9bce21d
--- /dev/null
+++ b/SoftHSMv2/m4/acx_botan_ecc.m4
@@ -0,0 +1,51 @@
+AC_DEFUN([ACX_BOTAN_ECC],[
+ AC_MSG_CHECKING(for Botan ECC support)
+
+ tmp_CPPFLAGS=$CPPFLAGS
+ tmp_LIBS=$LIBS
+
+ CPPFLAGS="$CPPFLAGS $CRYPTO_INCLUDES"
+ LIBS="$CRYPTO_LIBS $LIBS"
+
+ AC_LANG_PUSH([C++])
+ AC_RUN_IFELSE([
+ AC_LANG_SOURCE([[
+ #include <botan/init.h>
+ #include <botan/ec_group.h>
+ #include <botan/oids.h>
+ #include <botan/version.h>
+ int main()
+ {
+ Botan::LibraryInitializer::initialize();
+ const std::string name("secp256r1");
+ const Botan::OID oid(Botan::OIDS::lookup(name));
+ const Botan::EC_Group ecg(oid);
+ try {
+#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,11,0)
+ const std::vector<Botan::byte> der =
+ ecg.DER_encode(Botan::EC_DOMPAR_ENC_OID);
+#else
+ const Botan::SecureVector<Botan::byte> der =
+ ecg.DER_encode(Botan::EC_DOMPAR_ENC_OID);
+#endif
+ } catch(...) {
+ return 1;
+ }
+ return 0;
+ }
+ ]])
+ ],[
+ AC_MSG_RESULT([Found P256])
+ ],[
+ AC_MSG_RESULT([Cannot find P256])
+ AC_MSG_ERROR([
+Botan library has no valid ECC support. Please upgrade to a later version
+of Botan, above or including version 1.10.6 or 1.11.5.
+Alternatively disable ECC support in SoftHSM with --disable-ecc
+])
+ ],[])
+ AC_LANG_POP([C++])
+
+ CPPFLAGS=$tmp_CPPFLAGS
+ LIBS=$tmp_LIBS
+])