diff --git a/include/skey.h b/include/skey.h
new file mode 100644
index 000000000000..030e46c41c46
--- /dev/null
+++ b/include/skey.h
@@ -0,0 +1,36 @@
+#ifndef _SKEY_H_
+#define _SKEY_H_
+
+#include <sys/cdefs.h>
+
+/* Server-side data structure for reading keys file during login */
+struct skey {
+	FILE *keyfile;
+	char buf[256];
+	char *logname;
+	int n;
+	char *seed;
+	char *val;
+	long	recstart; /*needed so reread of buffer is efficient*/
+
+
+};
+
+/* Client-side structure for scanning data stream for challenge */
+struct mc {
+	char buf[256];
+	int skip;
+	int cnt;
+};
+
+void f __P((char *x));
+int keycrunch __P((char *result,char *seed,char *passwd));
+char *btoe __P((char *engout,char *c));
+char *put8 __P((char *out,char *s));
+int etob __P((char *out,char *e));
+void rip __P((char *buf));
+int skeychallenge __P((struct skey *mp,char *name, char *challenge));
+int skeylookup __P((struct skey *mp,char *name));
+int skeyverify __P((struct skey *mp,char *response));
+
+#endif /* _SKEY_H_ */