1 files changed, 19 insertions, 0 deletions
diff --git a/mdfour.h b/mdfour.h
new file mode 100644
index 0000000..c196a09
--- /dev/null
+++ b/mdfour.h
@@ -0,0 +1,19 @@
+#ifndef MDFOUR_H
+#define MDFOUR_H
+
+#include <stddef.h>
+#include <inttypes.h>
+
+struct mdfour {
+	uint32_t A, B, C, D;
+	size_t totalN;
+	unsigned char tail[64];
+	size_t tail_len;
+	int finalized;
+};
+
+void mdfour_begin(struct mdfour *md);
+void mdfour_update(struct mdfour *md, const unsigned char *in, size_t n);
+void mdfour_result(struct mdfour *md, unsigned char *out);
+
+#endif