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Comparing gvpe/NEWS (file contents):
Revision 1.112 by root, Sat Jul 13 04:10:29 2013 UTC vs.
Revision 1.117 by root, Thu Jul 18 17:35:10 2013 UTC

… …
2 2
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?
8TODO: ecdh to avoid session replay attacks
9TODO: 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
7 11
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
25TODO: make sense of overhead calculation
26TODO: if-up &c should not be scripts?
27 - INCOMPATIBLE CHANGE: core protocol version 1.0.
28 - INCOMPATIBLE CHANGE: node sextions are now introduced
29 with "node nodename", not "node = nodename".
30 - while individual packets couldn't be replayed, a whole session
31 could be replayed - this has been fixed by an extra key exchange.
32 - in addition to rsa key exchange and authentication, the handshake now
33 adds a diffie-hellman key exchange (using curve25119) for perfect
34 forward secrecy. mac and cipher keys are derived using HKDF.
35 - rsa key sizes are now configurable and larger (default is 3072).
36 correspondingly, the minimum mtu is no longer 296 but 576.
37 - fixed a potential (unverified) buffer overrun on rsa decryption.
38 - gvpectrl no longer generates all missing public keys, but
39 only missing private keys. private keys are also put
40 into the configured location.
41 - the pid-file now accepts %s as nodename as elsewhere.
42 - no longer use RAND_bytes to generate session keys - you NEED
43 a real source of entropy now (e.g. egd or /dev/random - see the
44 openssl documentation).
45 - multiple node statements for the same node are now supported
46 and will be merged.
47 - a new directive "global" switches back to the global section
48 of the config file.
49 - 12 random prefix bytes are now properly supported, leading to
50 a fully random IV.
51 - use aes with a random key in counter-mode to generate IVs,
52 for speed reasons (generating 12 random bytes with openssl can
53 take longer than encrypting and mac'ing a 1.5kb packet, and IVs
54 do not need to be cryptographically strong random numbers
55 (and in fact, shouldn't be)).
56 - if-up scripts can now be specified with absolute paths.
57 - new global option: serial, to detect configuration mismatches.
58
592.25 Sat Jul 13 06:42:33 CEST 2013
8 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other 60 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other
9 protocols are enabled - this is necessary when you have nodes with 61 protocols are enabled - this is necessary when you have nodes with
10 completely unknown protocols, to force mediated connection requests. 62 completely unknown protocols, to force mediated connection requests.
11 - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2. 63 - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2.
12 - core protocol version 0.1, compatible with older releases. 64 - core protocol version 0.1, compatible with older releases.
… …
20 the protocol not being configured locally. 72 the protocol not being configured locally.
21 - new global configuration options: chroot, chuser, chuid, chgid, 73 - new global configuration options: chroot, chuser, chuid, chgid,
22 to chroot to a specified or anonymous new root, and change user id. 74 to chroot to a specified or anonymous new root, and change user id.
23 - new global configuration options seed_device and seed_interval, 75 - new global configuration options seed_device and seed_interval,
24 to configure another device than /dev/urandom for random seeds, 76 to configure another device than /dev/urandom for random seeds,
25 and to configure a regular imterval to reseed the rng. 77 and to configure a regular interval to reseed the rng.
26 - prefer inet_aton over gethostbyname, as the latter is not guaranteed 78 - prefer inet_aton over gethostbyname, as the latter is not guaranteed
27 to "resolve" literal ip addresses. 79 to "resolve" literal ip addresses.
28 - configure didn't detect openssl 1.0 because SHA1_version became private 80 - configure didn't detect openssl 1.0 because SHA1_version became private
29 (patch by TANIGUCHI Takaki). 81 (patch by TANIGUCHI Takaki).
30 - fix a bug where nodes would tell the other side that it supports 82 - fix a bug where nodes would tell the other side that it supports
… …
35 - gvpectrl no longer evaluates any "on" directives. 87 - gvpectrl no longer evaluates any "on" directives.
36 - icmp and rawip protocols weren't upgradable to each other. 88 - icmp and rawip protocols weren't upgradable to each other.
37 - major, but incremental, dns transport improvements: 89 - major, but incremental, dns transport improvements:
38 - do not simply abort in some error cases in the dns transport, 90 - do not simply abort in some error cases in the dns transport,
39 but try to recover. 91 but try to recover.
40 - allow lowercase/uppercase alises for base-n encodings that do 92 - allow lowercase/uppercase aliases for base-n encodings that do
41 not rely on case. 93 not rely on case.
42 - use base26 instead of base22 encoding for dns syn's, and 94 - use base26 instead of base22 encoding for dns syn's, and
43 base36 instead of base22 for headers (saves one byte/packet). 95 base36 instead of base22 for headers (saves one byte/packet).
44 - back off far quicker in dns tunnel when idling - increases 96 - back off far quicker in dns tunnel when idling - increases
45 latency on an idle link somewhat, but avoids hundreds of 97 latency on an idle link somewhat, but avoids hundreds of
… …
48 second as opposed to once per 5 seconds). 100 second as opposed to once per 5 seconds).
49 - reduce dns send payload size to allow greater rate of ack 101 - reduce dns send payload size to allow greater rate of ack
50 messages (should help sack and ipv6). 102 messages (should help sack and ipv6).
51 - allow for ip options in rawip/icmp transports, even though gvpe 103 - allow for ip options in rawip/icmp transports, even though gvpe
52 doesn't generate them. 104 doesn't generate them.
105 - upgrade to autoconf 2.69, automake 1.11.
53 - upgrade to libev 4 API. 106 - upgrade to libev 4 API.
107 - replace COPYING file by actual GPLv3 - files were relicensed to GPLv3
108 earlier but COPYING was forgotten.
54 109
552.24 Sat Feb 12 05:15:48 CET 2011 1102.24 Sat Feb 12 05:15:48 CET 2011
56 - protocol version 0.1, compatible with older releases. 111 - protocol version 0.1, compatible with older releases.
57 - due to a bug, when packets were lost, a connection could go into a 112 - due to a bug, when packets were lost, a connection could go into a
58 state where a ping/connection request from another node would be 113 state where a ping/connection request from another node would be
… …
103 - work around the horribly inconsistent, ad-hoc, ever-changing 158 - work around the horribly inconsistent, ad-hoc, ever-changing
104 and broken texinfo syntax. YMMV. avoid texinfo. 159 and broken texinfo syntax. YMMV. avoid texinfo.
105 - keepalive is more aggressive now, sensding ping's every 3 seconds 160 - keepalive is more aggressive now, sensding ping's every 3 seconds
106 and killing the conenction after 15 seconds. 161 and killing the conenction after 15 seconds.
107 - bugfixes. 162 - bugfixes.
108 - autoconf 2.69, automake 1.11.
109 163
1102.01 Thu Mar 29 19:26:04 CEST 2007 1642.01 Thu Mar 29 19:26:04 CEST 2007
111 - protocol version 0.1, compatible with older releases. 165 - protocol version 0.1, compatible with older releases.
112 - bugfix of callback.h, might have cause callback return values to 166 - bugfix of callback.h, might have cause callback return values to
113 be corrupted on architectures like sparc before. 167 be corrupted on architectures like sparc before.

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