3 files changed, 64 insertions, 8 deletions
diff --git a/src/include/taler_mintdb_lib.h b/src/include/taler_mintdb_lib.h
index 739194a40..24f677617 100644
--- a/src/include/taler_mintdb_lib.h
+++ b/src/include/taler_mintdb_lib.h
@@ -60,6 +60,24 @@ struct TALER_MINTDB_PrivateSigningKeyInformationP
 };
 
 
+/**
+ * Information about a denomination key.
+ */ 
+struct TALER_MINTDB_DenominationKeyInformationP
+{
+
+  /**
+   * Signature over this struct to affirm the validity of the key.
+   */
+  struct TALER_MasterSignatureP signature;
+
+  /**
+   * Signed properties of the denomination key.
+   */
+  struct TALER_DenominationKeyValidityPS properties;
+};
+
+
 GNUNET_NETWORK_STRUCT_END
 
 
@@ -85,7 +103,7 @@ struct TALER_MINTDB_DenominationKeyIssueInformation
   /**
    * Signed public information about a denomination key.
    */
-  struct TALER_DenominationKeyValidityPS issue;
+  struct TALER_MINTDB_DenominationKeyInformationP issue;
 };
 
 
diff --git a/src/include/taler_mintdb_plugin.h b/src/include/taler_mintdb_plugin.h
index af5f2c196..21d83d9d8 100644
--- a/src/include/taler_mintdb_plugin.h
+++ b/src/include/taler_mintdb_plugin.h
@@ -697,7 +697,7 @@ struct TALER_MINTDB_Plugin
   (*insert_denomination_info) (void *cls,
                                struct TALER_MINTDB_Session *session,
                                const struct TALER_DenominationPublicKey *denom_pub,
-                               const struct TALER_DenominationKeyValidityPS *issue);
+                               const struct TALER_MINTDB_DenominationKeyInformationP *issue);
 
 
   /**
@@ -713,7 +713,7 @@ struct TALER_MINTDB_Plugin
   (*get_denomination_info) (void *cls,
                             struct TALER_MINTDB_Session *session,
                             const struct TALER_DenominationPublicKey *denom_pub,
-                            struct TALER_DenominationKeyValidityPS *issue);
+                            struct TALER_MINTDB_DenominationKeyInformationP *issue);
 
 
   /**
diff --git a/src/include/taler_signatures.h b/src/include/taler_signatures.h
index 70fc1c0ad..eebddd2dd 100644
--- a/src/include/taler_signatures.h
+++ b/src/include/taler_signatures.h
@@ -89,6 +89,17 @@
 #define TALER_SIGNATURE_MINT_KEY_SET 1035
 
 
+/*********************/
+/* Wallet signatures */
+/*********************/
+
+/**
+ * Signature where the auditor confirms that he is 
+ * aware of certain denomination keys from the mint.
+ */
+#define TALER_SIGNATURE_AUDITOR_MINT_KEYS 1064
+
+
 /***********************/
 /* Merchant signatures */
 /***********************/
@@ -123,11 +134,11 @@
  */
 #define TALER_SIGNATURE_WALLET_COIN_MELT 1202
 
+
 /*******************/
 /* Test signatures */
 /*******************/
 
-
 /**
  * EdDSA test signature.
  */
@@ -512,10 +523,6 @@ struct TALER_MintKeySetPS
  */
 struct TALER_DenominationKeyValidityPS
 {
-  /**
-   * Signature over this struct to affirm the validity of the key.
-   */
-  struct TALER_MasterSignatureP signature;
 
   /**
    * Purpose is #TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY.
@@ -599,6 +606,37 @@ struct TALER_DenominationKeyValidityPS
 
 };
 
+
+/**
+ * @brief Information about a denomination key. Denomination keys
+ * are used to sign coins of a certain value into existence.
+ */
+struct TALER_MintKeyValidityPS
+{
+
+  /**
+   * Purpose is #TALER_SIGNATURE_AUDITOR_MINT_KEYS.
+   */
+  struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
+
+  /**
+   * The long-term offline master key of the mint, affirmed by the
+   * auditor.
+   */
+  struct TALER_MasterPublicKeyP master;
+
+  /**
+   * Array of hash(es) of the mint's denomination keys.
+   * Specifically, this is the hash over the
+   * `struct TALER_DenominationKeyValidityPS`, not just
+   * the public key (as the auditor needs to check against
+   * the correct valuations and fee structure).
+   */
+  /* struct GNUNET_HashCode h_dks; */
+
+};
+
+
 GNUNET_NETWORK_STRUCT_END
 
 #endif