+/**
+ * Purpose is to set a session key.
+ */
+#define GNUNET_SIGNATURE_PURPOSE_SET_ECC_KEY 16
+
+/**
+ * UBlock Signature, done using DSS, not ECC
+ */
+#define GNUNET_SIGNATURE_PURPOSE_FS_UBLOCK 17
+
+/**
+ * Accept state in regex DFA. Peer affirms that
+ * he offers the matching service.
+ */
+#define GNUNET_SIGNATURE_PURPOSE_REGEX_ACCEPT 18
+
+/**
+ * Signature of a multicast message sent by the origin.
+ */
+#define GNUNET_SIGNATURE_PURPOSE_MULTICAST_MESSAGE 19
+
+/**
+ * Signature of a conversation ring.
+ */
+#define GNUNET_SIGNATURE_PURPOSE_CONVERSATION_RING 20
+
+/**
+ * Signature for the first round of distributed key generation.
+ */
+#define GNUNET_SIGNATURE_PURPOSE_SECRETSHARING_DKG1 22
+
+/**
+ * Signature for the second round of distributed key generation.
+ */
+#define GNUNET_SIGNATURE_PURPOSE_SECRETSHARING_DKG2 23
+
+/**
+ * Signature for cooperatice decryption.
+ */
+#define GNUNET_SIGNATURE_PURPOSE_SECRETSHARING_DECRYPTION 23
+
+/**
+ * Signature of a multicast request sent by a member.
+ */
+#define GNUNET_SIGNATURE_PURPOSE_MULTICAST_REQUEST 24
+
+/**
+ * Signature for a sensor anomaly report message.
+ */
+#define GNUNET_SIGNATURE_PURPOSE_SENSOR_ANOMALY_REPORT 25
+
+/**
+ * Signature for a GNUid Token
+ */
+#define GNUNET_SIGNATURE_PURPOSE_GNUID_TOKEN 26
+
+/**
+ * Signature for a GNUid Ticket
+ */
+#define GNUNET_SIGNATURE_PURPOSE_GNUID_TICKET 27
+
+/**
+ * Signature for a GNUnet credential
+ */
+#define GNUNET_SIGNATURE_PURPOSE_CREDENTIAL 28
+