1 files changed, 21 insertions, 0 deletions

diff --git a/src/include/gnunet_common.h b/src/include/gnunet_common.h
index 94ecd06f8..2c40aef79 100644
--- a/src/include/gnunet_common.h
+++ b/src/include/gnunet_common.h
@@ -257,6 +257,27 @@ extern "C"
 GNUNET_NETWORK_STRUCT_BEGIN
 
 /**
+ * @brief A 512-bit hashcode.  These are the default length for GNUnet, using SHA-512.
+ */
+struct GNUNET_HashCode
+{
+  uint32_t bits[512 / 8 / sizeof (uint32_t)];   /* = 16 */
+};
+
+
+
+/**
+ * @brief A 256-bit hashcode.  Used under special conditions, like when space
+ * is critical and security is not impacted by it.
+ */
+struct GNUNET_ShortHashCode
+{
+  uint32_t bits[256 / 8 / sizeof (uint32_t)];   /* = 8 */
+};
+
+
+
+/**
  * Header for all communications.
  */
 struct GNUNET_MessageHeader