7.0 refactor

src/md5.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "arch.h"
+
+typedef struct {
+  uint32_t buf[4];
+  uint32_t bits[2];
+  unsigned char in[64];
+} mg_md5_ctx;
+
+void mg_md5_init(mg_md5_ctx *c);
+void mg_md5_update(mg_md5_ctx *c, const unsigned char *data, size_t len);
+void mg_md5_final(mg_md5_ctx *c, unsigned char[16]);