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Comparing gvpe/NEWS (file contents):
Revision 1.119 by root, Fri Oct 11 04:07:24 2013 UTC vs.
Revision 1.122 by root, Fri Jan 17 19:47:08 2014 UTC

… …
3TODO: bridge mode, finally? 3TODO: bridge mode, finally?
4TODO: gcm mode? 4TODO: gcm mode?
5TODO: replace ripemd160 as the only authentication hash. 5TODO: replace ripemd160 as the only authentication hash.
6TODO: increase rsa size. 6TODO: increase rsa size.
7TODO: replace transport bits by transport endpoint structs? 7TODO: replace transport bits by transport endpoint structs?
8TODO: ecdh to avoid session replay attacks
9TODO: http://incog-izick.blogspot.de/2011/08/using-openssl-aes-gcm.html 8TODO: http://incog-izick.blogspot.de/2011/08/using-openssl-aes-gcm.html
10TODO: http://stackoverflow.com/questions/12153009/openssl-c-example-of-aes-gcm-using-evp-interfaces 9TODO: http://stackoverflow.com/questions/12153009/openssl-c-example-of-aes-gcm-using-evp-interfaces
11 10
12proposed: 3 types, req, resreq, res
13
14req (hmac1) rsa(seqno1 hmac1 aes1 seqno2 hmac2 aes2 auth) ecdh1
15res (hmac1) hash(rsa-contents) ecdh2
16
17req hmac0(*) rsa(seqno hmac0 hmac aes auth) hkdf-salt ecdh1
18res hmac0(rsa-contents ecdh2)
19 hmac_key = hkdf(hkdf-salt, hmac | ecdh)
20 aes_key = hkdf(hkdf-salt, aes | ecdh)
21
22TODO: protocol magic fixen(!!!)
23TODO: "global"
24TODO: verify 11TODO: verify
25TODO: make sense of overhead calculation 12TODO: make sense of overhead calculation
26TODO: if-up &c should not be scripts? 13TODO: if-up &c should not be scripts?
14TODO: ipv6
15TODO: gvpectrl should not use default privatekey,. or maybe document it better
27 - INCOMPATIBLE CHANGE: core protocol version 1.0. 16 - INCOMPATIBLE CHANGE: core protocol version 1.0.
28 - INCOMPATIBLE CHANGE: node sextions are now introduced 17 - INCOMPATIBLE CHANGE: node sextions are now introduced
29 with "node nodename", not "node = nodename". 18 with "node nodename", not "node = nodename".
30 - while individual packets couldn't be replayed, a whole session 19 - while individual packets couldn't be replayed, a whole session
31 could be replayed - this has been fixed by an extra key exchange. 20 could be replayed - this has been fixed by an extra key exchange.
… …
33 adds a diffie-hellman key exchange (using curve25119) for perfect 22 adds a diffie-hellman key exchange (using curve25119) for perfect
34 forward secrecy. mac and cipher keys are derived using HKDF. 23 forward secrecy. mac and cipher keys are derived using HKDF.
35 - rsa key sizes are now configurable and larger (default is 3072). 24 - rsa key sizes are now configurable and larger (default is 3072).
36 correspondingly, the minimum mtu is no longer 296 but 576. 25 correspondingly, the minimum mtu is no longer 296 but 576.
37 - fixed a potential (unverified) buffer overrun on rsa decryption. 26 - fixed a potential (unverified) buffer overrun on rsa decryption.
27 - new per-node low-power setting that tries to reduce cpu/network usage.
38 - router reconnects could cause excessive rekeying on other connections. 28 - router reconnects could cause excessive rekeying on other connections.
39 - gvpectrl no longer generates all missing public keys, but 29 - gvpectrl no longer generates all missing public keys, but
40 only missing private keys. private keys are also put 30 only missing private keys. private keys are also put
41 into the configured location. 31 into the configured location.
42 - the pid-file now accepts %s as nodename as elsewhere. 32 - the pid-file now accepts %s as nodename as elsewhere.
… …
60 (hint by Ilmari Karonen). 50 (hint by Ilmari Karonen).
61 - during rekeying or conenction establishments, hmac authentication 51 - during rekeying or conenction establishments, hmac authentication
62 errors could occur and reset the connection. Transient hmac 52 errors could occur and reset the connection. Transient hmac
63 authentication errors are now being ignored for 3 seconds. 53 authentication errors are now being ignored for 3 seconds.
64 - log the reason for a conneciton loss. 54 - log the reason for a conneciton loss.
55 - use a (hopefully) constant time memcmp to compare internal secrets.
65 56
662.25 Sat Jul 13 06:42:33 CEST 2013 572.25 Sat Jul 13 06:42:33 CEST 2013
67 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other 58 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other
68 protocols are enabled - this is necessary when you have nodes with 59 protocols are enabled - this is necessary when you have nodes with
69 completely unknown protocols, to force mediated connection requests. 60 completely unknown protocols, to force mediated connection requests.

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