Bemanitools v5.26 release

src/main/security/util.h

@@ -0,0 +1,40 @@
+#ifndef SECURITY_UTIL_H
+#define SECURITY_UTIL_H
+
+#include <stdint.h>
+
+/**
+ * Pack 8 bytes of input data into 6 bytes payload output data. This is used to
+ * pack/encode mcodes from roundplug dongles, e.g. GCH44JAA.
+ * 
+ * @param in Input data of 8 bytes length, e.g. mcode.
+ * @param out Target buffer for encoded data with at least 6 bytes capacity.
+ */
+void security_util_8_to_6_encode(const uint8_t *in, uint8_t *out);
+
+/**
+ * Decode/unpack 6 bytes of encoded roundplug data, e.g. encoded mcode, to 
+ * the full 8 bytes width.
+ * 
+ * @param in Input encoded payload of 6 bytes length.
+ * @param out Target buffer for decoded data with at least 8 bytes capacity.
+ */
+void security_util_6_to_8_decode(const uint8_t *in, uint8_t *out);
+
+/**
+ * Same as security_util_8_to_6_encode but in reversed byte order.
+ * 
+ * @param in Input data of 8 bytes length, e.g. mcode.
+ * @param out Target buffer for encoded data with at least 6 bytes capacity.
+ */
+void security_util_8_to_6_encode_reverse(const uint8_t *in, uint8_t *out);
+
+/**
+ * Same as security_util_6_to_8_decode but in reversed byte order.
+ * 
+ * @param in Input encoded payload of 6 bytes length.
+ * @param out Target buffer for decoded data with at least 8 bytes capacity.
+ */
+void security_util_6_to_8_decode_reverse(const uint8_t *in, uint8_t *out);
+
+#endif