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Comparing gvpe/NEWS (file contents):
Revision 1.124 by root, Thu Jan 29 00:21:38 2015 UTC vs.
Revision 1.138 by root, Sun Nov 18 00:02:56 2018 UTC

1GVPE NEWS 1GVPE NEWS
2 2
3TODO: bridge mode, finally? 3 - use c++ variadic templates for callback.h, get rid of callback.pl.
4TODO: gcm mode?
5TODO: replace ripemd160 as the only authentication hash.
6TODO: increase rsa size.
7TODO: replace transport bits by transport endpoint structs?
8TODO: http://incog-izick.blogspot.de/2011/08/using-openssl-aes-gcm.html
9TODO: http://stackoverflow.com/questions/12153009/openssl-c-example-of-aes-gcm-using-evp-interfaces
10 4
11TODO: verify 53.1 Sat Oct 27 07:50:43 CEST 2018
12TODO: make sense of overhead calculation 6 - port to openssl 1.1 BUT SEE WARNING IN configure.ac. Do not use!
13TODO: if-up &c should not be scripts? 7 - tinc cruft removal: remove getopt.[ch], it's less portable to
14TODO: ipv6 8 have it then to not have it.
15TODO: gvpectrl should not use default privatekey,. or maybe document it better 9 - tinc cruft removal: use pkg-config to detect libressl/openssl.
10 - minor cleanups.
11
123.0 Thu Nov 10 15:39:58 CET 2016
16 - INCOMPATIBLE CHANGE: core protocol version 1.0. 13 - INCOMPATIBLE CHANGE: core protocol version 1.0.
17 - INCOMPATIBLE CHANGE: node sections are now introduced 14 - INCOMPATIBLE CHANGE: node sections are now introduced
18 with "node nodename", not "node = nodename". 15 with "node nodename", not "node = nodename".
16 - INCOMPATIBLE CHANGE: gvpectrl -g will now generate a single
17 keypair, while -G will try to generate all keypairs as before.
18 - openssl 1.0.2 is the latest supported openssl release,
19 openssl 1.1.0 is not supported at the moment as the work to
20 make it compatible to both versions is just too much. a switch
21 to openssl 1.1 or another library will be done in a future release.
22 - update examples to not generate keys centrally, but locally on each
23 node.
24 - add workaround for temporary/rare ENOBUFS condition.
19 - while individual packets couldn't be replayed, a whole session 25 - while individual packets couldn't be replayed, a whole session
20 could be replayed - this has been fixed by an extra key exchange. 26 could be replayed - this has been fixed by an extra key exchange.
27 - fix a delete vs. delete [] mismatch in the central logging function.
21 - in addition to rsa key exchange and authentication, the handshake now 28 - in addition to rsa key exchange and authentication, the handshake now
22 adds a diffie-hellman key exchange (using curve25119) for perfect 29 adds a diffie-hellman key exchange (using curve25119) for perfect
23 forward secrecy. mac and cipher keys are derived using HKDF. 30 forward secrecy. mac and cipher keys are derived using HKDF.
24 - rsa key sizes are now configurable and larger (default is 3072). 31 - rsa key sizes are now configurable and larger (default is 3072).
25 correspondingly, the minimum mtu is no longer 296 but 576. 32 correspondingly, the minimum mtu is no longer 296 but 576.
… …
32 - the pid-file now accepts %s as nodename as elsewhere. 39 - the pid-file now accepts %s as nodename as elsewhere.
33 - switch to counter mode (only aes supported at the moment in 40 - switch to counter mode (only aes supported at the moment in
34 openssl). this gets rid of the need to generate a random iv, 41 openssl). this gets rid of the need to generate a random iv,
35 is likely more secure (and, as a side effect, gets rid of 42 is likely more secure (and, as a side effect, gets rid of
36 slow randomness generation. counter mode is often faster 43 slow randomness generation. counter mode is often faster
37 then cbc mode as well). 44 then cbc mode as well, and packets are smaller).
38 - no longer use RAND_bytes to generate session keys - you NEED 45 - no longer use RAND_bytes to generate session keys - you NEED
39 a real source of entropy now (e.g. egd or /dev/random - see the 46 a real source of entropy now (e.g. egd or /dev/random - see the
40 openssl documentation). 47 openssl documentation).
41 - multiple node statements for the same node are now supported 48 - multiple node statements for the same node are now supported
42 and will be merged. 49 and will be merged.
… …
44 of the config file. 51 of the config file.
45 - if-up scripts can now be specified with absolute paths. 52 - if-up scripts can now be specified with absolute paths.
46 - new global option: serial, to detect configuration mismatches. 53 - new global option: serial, to detect configuration mismatches.
47 - use HKDF as authentication proof, not HMAC or a plain hash 54 - use HKDF as authentication proof, not HMAC or a plain hash
48 (hint by Ilmari Karonen). 55 (hint by Ilmari Karonen).
49 - during rekeying or conenction establishments, hmac authentication 56 - during rekeying or connection establishments, hmac authentication
50 errors could occur and reset the connection. Transient hmac 57 errors could occur and reset the connection. Transient hmac
51 authentication errors are now being ignored for 3 seconds. 58 authentication errors are now being ignored for 3 seconds.
52 - log the reason for a conneciton loss. 59 - log the reason for a conneciton loss.
53 - use a (hopefully) constant time memcmp to compare internal secrets. 60 - use a (hopefully) constant time memcmp to compare internal secrets.
61 - fix a (harmless) errornous out of bounds stack read that would trigger
62 gcc's -fsanitize=address.
63 - bump old packet window size from 512 to 65536.
64 - update for big changes in openssl 1.1 API, wrap primitives
65 to make further changes easier.
66 - correctly check return values for openssl 1.0.0 and later.
67 - check for both public and private key file when deciding whether
68 to skip generating a key to avoid accidental overwrites.
54 69
552.25 Sat Jul 13 06:42:33 CEST 2013 702.25 Sat Jul 13 06:42:33 CEST 2013
56 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other 71 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other
57 protocols are enabled - this is necessary when you have nodes with 72 protocols are enabled - this is necessary when you have nodes with
58 completely unknown protocols, to force mediated connection requests. 73 completely unknown protocols, to force mediated connection requests.

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