[GNUnet-SVN] r28311 - in gnunet/src: gns namestore

[gnunet]

Author: wachs
Date: 2013-07-24 16:50:36 +0200 (Wed, 24 Jul 2013)
New Revision: 28311

Modified:
   gnunet/src/gns/gns_common.c
   gnunet/src/gns/gnunet-service-gns.c
   gnunet/src/namestore/gnunet-service-namestore.c
Log:
RFC new gns publishing


Modified: gnunet/src/gns/gns_common.c
===================================================================
--- gnunet/src/gns/gns_common.c 2013-07-24 14:41:46 UTC (rev 28310)
+++ gnunet/src/gns/gns_common.c 2013-07-24 14:50:36 UTC (rev 28311)
@@ -44,6 +44,10 @@
   struct GNUNET_HashCode name_hash_double;
   struct GNUNET_HashCode zone_hash_double;
 
+  /* TODO 3) AB: New publishing
+   * Create new key V = H(H(i,Q) * Q)
+   */
+
   GNUNET_CRYPTO_short_hash (name,
                            strlen (name),
                            &name_hash);

Modified: gnunet/src/gns/gnunet-service-gns.c
===================================================================
--- gnunet/src/gns/gnunet-service-gns.c 2013-07-24 14:41:46 UTC (rev 28310)
+++ gnunet/src/gns/gnunet-service-gns.c 2013-07-24 14:50:36 UTC (rev 28311)
@@ -462,6 +462,17 @@
     return;
   }
   
+  /* TODO 2) AB: New publishing
+   *
+   * - Use new signature S_d
+   * - Obtain new derived public key V = H(H(i,Q) * Q)
+   * - Obtain HKDF(i,Q)
+   * - Compute encrypte record block E with HKDF(i,Q) (rd, rd_count)
+   * - Create block B = |V,E,S_d|
+   * - Compute new DHT key H(V) in TODO 3)
+   *
+   * -> Put (H(V), B)
+   */
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Putting records for `%s' into the DHT\n", name); 
   rd_payload_length = GNUNET_NAMESTORE_records_get_size (rd_count, rd); 
@@ -491,7 +502,7 @@
                                                    NULL);
     return;
   }
-
+  /* TODO AB: Here records are put in the DHT: modify dht_key to H(key) = 
H(H(name,zone) * zone) */
   GNUNET_GNS_get_key_for_record (name, &zhash, &dht_key);
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "putting %u records from zone %s for `%s' under key: %s with size 
%u and timeout %s\n",

Modified: gnunet/src/namestore/gnunet-service-namestore.c
===================================================================
--- gnunet/src/namestore/gnunet-service-namestore.c     2013-07-24 14:41:46 UTC 
(rev 28310)
+++ gnunet/src/namestore/gnunet-service-namestore.c     2013-07-24 14:50:36 UTC 
(rev 28311)
@@ -1639,11 +1639,33 @@
     if (NULL != (cc = GNUNET_CONTAINER_multihashmap_get (zonekeys, 
&long_hash)))
     {
       expire = get_block_expiration_time (rd_count_filtered, rd_filtered);
+
+
       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                  "Creating signature for `%s' in zone `%s' with %u records and 
expiration %llu\n",
                  name, GNUNET_NAMESTORE_short_h2s(&zone_hash), 
                  rd_count_filtered,
                  (unsigned long long) expire.abs_value);
+      /* TODO 1) AB: New publishing
+       * - Create HDKF(Q,i)
+       * - Encrypt record block R with HKDF: HDKF(Q,i) == E(R)
+       * - Create block |e,E(R)|
+       * - Create d: h * x mod n == hash (name, zone)  * c->privkey mod n
+       * - Create ECC signature S_d (e, E_HKDF(Q,i))
+       *
+       * Return: zone_key , expire, name, rd_count_filtered, new signature S_d
+       *
+       * Q: zone's public key
+       * x: zone's private key
+       * i: name
+       * d: derived secret
+       *
+       * - how do I get n:
+       * Extract from private key s_expression
+       * Question
+       * - how do I multiply h * x?
+       */
+
       new_signature = GNUNET_NAMESTORE_create_signature (cc->privkey, expire, 
name, 
                                                         rd_filtered, 
rd_count_filtered);
       GNUNET_assert (NULL != new_signature);