2 files changed, 2 insertions, 0 deletions

diff --git a/include/otputil.h b/include/otputil.h
index b2ad625..57af6e5 100644
--- a/include/otputil.h
+++ b/include/otputil.h
@@ -129,6 +129,7 @@
 #define OTPUTIL_OPT_TOTP_HMAC       0x0206   // (int *)
 
 
+#define OTPUTIL_MD_NONE             0
 #define OTPUTIL_MD_SHA1             1
 #define OTPUTIL_MD_SHA256           2
 #define OTPUTIL_MD_SHA512           3
diff --git a/lib/libotputil/lmisc.c b/lib/libotputil/lmisc.c
index 1c60269..6f5221d 100644
--- a/lib/libotputil/lmisc.c
+++ b/lib/libotputil/lmisc.c
@@ -58,6 +58,7 @@
 #pragma mark otputil_md_list[]
 static const otputil_map_t otputil_md_list[] =
 {
+   { .map_name = "none",            .map_id = OTPUTIL_MD_NONE },
    { .map_name = "md4",             .map_id = OTPUTIL_MD_MD4 },
    { .map_name = "md5",             .map_id = OTPUTIL_MD_MD5 },
    { .map_name = "sha1",            .map_id = OTPUTIL_MD_SHA1 },