--- gvpe/NEWS	2013/07/05 10:04:21	1.108
+++ gvpe/NEWS	2013/07/19 21:01:16	1.118
@@ -1,26 +1,82 @@
 GVPE NEWS
 
-New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
-     with this defined it will not be affected by any changes to ssl internal
-     structures. Add several utility functions to allow openssl application
-     to work with OPENSSL_NO_SSL_INTERN defined.
-     [Steve Henson]
 TODO: bridge mode, finally?
+TODO: gcm mode?
+TODO: replace ripemd160 as the only authentication hash.
+TODO: increase rsa size.
+TODO: replace transport bits by transport endpoint structs?
+TODO: ecdh to avoid session replay attacks
+TODO: http://incog-izick.blogspot.de/2011/08/using-openssl-aes-gcm.html
+TODO: http://stackoverflow.com/questions/12153009/openssl-c-example-of-aes-gcm-using-evp-interfaces
 
+proposed: 3 types, req, resreq, res
+
+req (hmac1) rsa(seqno1 hmac1 aes1 seqno2 hmac2 aes2 auth) ecdh1
+res (hmac1) hash(rsa-contents) ecdh2
+
+req hmac0(*) rsa(seqno hmac0 hmac aes auth) hkdf-salt ecdh1
+res hmac0(rsa-contents ecdh2)
+   hmac_key = hkdf(hkdf-salt, hmac | ecdh)
+   aes_key  = hkdf(hkdf-salt, aes  | ecdh)
+
+TODO: protocol magic fixen(!!!)
+TODO: "global"
+TODO: verify
+TODO: make sense of overhead calculation
+TODO: if-up &c should not be scripts?
+	- INCOMPATIBLE CHANGE: core protocol version 1.0.
+        - INCOMPATIBLE CHANGE: node sextions are now introduced
+          with "node nodename", not "node = nodename".
+        - while individual packets couldn't be replayed, a whole session
+          could be replayed - this has been fixed by an extra key exchange.
+        - in addition to rsa key exchange and authentication, the handshake now
+          adds a diffie-hellman key exchange (using curve25119) for perfect
+          forward secrecy. mac and cipher keys are derived using HKDF.
+        - rsa key sizes are now configurable and larger (default is 3072).
+          correspondingly, the minimum mtu is no longer 296 but 576.
+        - fixed a potential (unverified) buffer overrun on rsa decryption.
+        - gvpectrl no longer generates all missing public keys, but
+          only missing private keys. private keys are also put
+          into the configured location.
+        - the pid-file now accepts %s as nodename as elsewhere.
+        - no longer use RAND_bytes to generate session keys - you NEED
+          a real source of entropy now (e.g. egd or /dev/random - see the
+          openssl documentation).
+        - multiple node statements for the same node are now supported
+          and will be merged.
+        - a new directive "global" switches back to the global section
+          of the config file.
+        - 12 random prefix bytes are now properly supported, leading to
+          a fully random IV.
+        - use aes with a random key in counter-mode to generate IVs,
+          for speed reasons (generating 12 random bytes with openssl can
+          take longer than encrypting and mac'ing a 1.5kb packet, and IVs
+          do not need to be cryptographically strong random numbers
+          (and in fact, shouldn't be)).
+        - if-up scripts can now be specified with absolute paths.
+        - new global option: serial, to detect configuration mismatches.
+        - use HKDF as authentication proof, not HMAC or a plain hash
+          (hint by Ilmari Karonen).
+          
+2.25 Sat Jul 13 06:42:33 CEST 2013
 	- INCOMPATIBLE CHANGE: no longer enable udp protocol if no other
           protocols are enabled - this is necessary when you have nodes with
           completely unknown protocols, to force mediated connection requests.
         - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2.
-        - switch to using RSA_generate_key_ex, which is the undocumented
+	- core protocol version 0.1, compatible with older releases.
+        - switch to using RSA_generate_key_ex, which is the badly documented
           and needlessly more complicated replacement for the RSA_generate_key
           function which is now deprecated.
+        - support additional hmac hashes: sha256 and sha512, usually truncated.
         - change public exponent for rsa keys from 65535 to 65537, for
-          efficiency reasons.
+          efficiency reasons - only affects new keys.
         - nodes would sometimes declare transport endpoints valid despite
           the protocol not being configured locally.
-	- core protocol version 0.1, compatible with older releases.
         - new global configuration options: chroot, chuser, chuid, chgid,
           to chroot to a specified or anonymous new root, and change user id.
+        - new global configuration options seed_device and seed_interval,
+          to configure another device than /dev/urandom for random seeds,
+          and to configure a regular interval to reseed the rng.
         - prefer inet_aton over gethostbyname, as the latter is not guaranteed
           to "resolve" literal ip addresses.
         - configure didn't detect openssl 1.0 because SHA1_version became private
@@ -35,7 +91,7 @@
         - major, but incremental, dns transport improvements:
            - do not simply abort in some error cases in the dns transport,
              but try to recover.
-           - allow lowercase/uppercase alises for base-n encodings that do
+           - allow lowercase/uppercase aliases for base-n encodings that do
              not rely on case.
            - use base26 instead of base22 encoding for dns syn's, and
              base36 instead of base22 for headers (saves one byte/packet).
@@ -48,7 +104,10 @@
              messages (should help sack and ipv6).
         - allow for ip options in rawip/icmp transports, even though gvpe
           doesn't generate them.
+        - upgrade to autoconf 2.69, automake 1.11.
         - upgrade to libev 4 API.
+        - replace COPYING file by actual GPLv3 - files were relicensed to GPLv3
+          earlier but COPYING was forgotten.
 
 2.24 Sat Feb 12 05:15:48 CET 2011
 	- protocol version 0.1, compatible with older releases.