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-rw-r--r--SoftHSMv2/m4/acx_openssl_ecc.m437
1 files changed, 37 insertions, 0 deletions
diff --git a/SoftHSMv2/m4/acx_openssl_ecc.m4 b/SoftHSMv2/m4/acx_openssl_ecc.m4
new file mode 100644
index 0000000..612c505
--- /dev/null
+++ b/SoftHSMv2/m4/acx_openssl_ecc.m4
@@ -0,0 +1,37 @@
+AC_DEFUN([ACX_OPENSSL_ECC],[
+ AC_MSG_CHECKING(for OpenSSL ECC support)
+
+ tmp_CPPFLAGS=$CPPFLAGS
+ tmp_LIBS=$LIBS
+
+ CPPFLAGS="$CPPFLAGS $CRYPTO_INCLUDES"
+ LIBS="$CRYPTO_LIBS $LIBS"
+
+ AC_LANG_PUSH([C])
+ AC_RUN_IFELSE([
+ AC_LANG_SOURCE([[
+ #include <openssl/ecdsa.h>
+ #include <openssl/objects.h>
+ int main()
+ {
+ EC_KEY *ec256, *ec384, *ec521;
+
+ ec256 = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
+ ec384 = EC_KEY_new_by_curve_name(NID_secp384r1);
+ ec521 = EC_KEY_new_by_curve_name(NID_secp521r1);
+ if (ec256 == NULL || ec384 == NULL || ec521 == NULL)
+ return 1;
+ return 0;
+ }
+ ]])
+ ],[
+ AC_MSG_RESULT([Found P256, P384, and P521])
+ ],[
+ AC_MSG_RESULT([Cannot find P256, P384, or P521])
+ AC_MSG_ERROR([OpenSSL library has no ECC support])
+ ],[])
+ AC_LANG_POP([C])
+
+ CPPFLAGS=$tmp_CPPFLAGS
+ LIBS=$tmp_LIBS
+])