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Comparing gvpe/NEWS (file contents):
Revision 1.123 by root, Sat Jan 17 08:42:50 2015 UTC vs.
Revision 1.141 by root, Thu Oct 6 03:25:53 2022 UTC

1GVPE NEWS 1GVPE NEWS
2 2
3TODO: bridge mode, finally? 3TODO: updqate donna?
4TODO: gcm mode? 4TODO: clear one-time key/auth material from memory?
5TODO: replace ripemd160 as the only authentication hash. 5 - update embedded liblzf.
6TODO: increase rsa size. 6 - use liblzf with static hash table: lowers stack usage.
7TODO: replace transport bits by transport endpoint structs? 7 - do not initialise liblzf hash table for faster operation.
8TODO: http://incog-izick.blogspot.de/2011/08/using-openssl-aes-gcm.html 8 - use C++ variadic templates for callback.h, get rid of callback.pl.
9TODO: http://stackoverflow.com/questions/12153009/openssl-c-example-of-aes-gcm-using-evp-interfaces 9 - update autoconf.
10 - slightly modernise code.
11 - make use of ICMPFILTER again, this stopped working because it
12 is not defined in the glibc header files.
10 13
11TODO: verify 143.1 Sat Oct 27 07:50:43 CEST 2018
12TODO: make sense of overhead calculation 15 - port to openssl 1.1 BUT SEE WARNING IN configure.ac. Do not use!
13TODO: if-up &c should not be scripts? 16 - tinc cruft removal: remove getopt.[ch], it's less portable to
14TODO: ipv6 17 have it then to not have it.
15TODO: gvpectrl should not use default privatekey,. or maybe document it better 18 - tinc cruft removal: use pkg-config to detect libressl/openssl.
19 - minor cleanups.
20
213.0 Thu Nov 10 15:39:58 CET 2016
16 - INCOMPATIBLE CHANGE: core protocol version 1.0. 22 - INCOMPATIBLE CHANGE: core protocol version 1.0.
17 - INCOMPATIBLE CHANGE: node sections are now introduced 23 - INCOMPATIBLE CHANGE: node sections are now introduced
18 with "node nodename", not "node = nodename". 24 with "node nodename", not "node = nodename".
25 - INCOMPATIBLE CHANGE: gvpectrl -g will now generate a single
26 keypair, while -G will try to generate all keypairs as before.
27 - openssl 1.0.2 is the latest supported openssl release,
28 openssl 1.1.0 is not supported at the moment as the work to
29 make it compatible to both versions is just too much. a switch
30 to openssl 1.1 or another library will be done in a future release.
31 - update examples to not generate keys centrally, but locally on each
32 node.
33 - add workaround for temporary/rare ENOBUFS condition.
19 - while individual packets couldn't be replayed, a whole session 34 - while individual packets couldn't be replayed, a whole session
20 could be replayed - this has been fixed by an extra key exchange. 35 could be replayed - this has been fixed by an extra key exchange.
36 - fix a delete vs. delete [] mismatch in the central logging function.
21 - in addition to rsa key exchange and authentication, the handshake now 37 - in addition to rsa key exchange and authentication, the handshake now
22 adds a diffie-hellman key exchange (using curve25119) for perfect 38 adds a diffie-hellman key exchange (using curve25119) for perfect
23 forward secrecy. mac and cipher keys are derived using HKDF. 39 forward secrecy. mac and cipher keys are derived using HKDF.
24 - rsa key sizes are now configurable and larger (default is 3072). 40 - rsa key sizes are now configurable and larger (default is 3072).
25 correspondingly, the minimum mtu is no longer 296 but 576. 41 correspondingly, the minimum mtu is no longer 296 but 576.
… …
28 - router reconnects could cause excessive rekeying on other connections. 44 - router reconnects could cause excessive rekeying on other connections.
29 - gvpectrl no longer generates all missing public keys, but 45 - gvpectrl no longer generates all missing public keys, but
30 only missing private keys. private keys are also put 46 only missing private keys. private keys are also put
31 into the configured location. 47 into the configured location.
32 - the pid-file now accepts %s as nodename as elsewhere. 48 - the pid-file now accepts %s as nodename as elsewhere.
49 - switch to counter mode (only aes supported at the moment in
50 openssl). this gets rid of the need to generate a random iv,
51 is likely more secure (and, as a side effect, gets rid of
52 slow randomness generation. counter mode is often faster
53 then cbc mode as well, and packets are smaller).
33 - no longer use RAND_bytes to generate session keys - you NEED 54 - no longer use RAND_bytes to generate session keys - you NEED
34 a real source of entropy now (e.g. egd or /dev/random - see the 55 a real source of entropy now (e.g. egd or /dev/random - see the
35 openssl documentation). 56 openssl documentation).
36 - multiple node statements for the same node are now supported 57 - multiple node statements for the same node are now supported
37 and will be merged. 58 and will be merged.
38 - a new directive "global" switches back to the global section 59 - a new directive "global" switches back to the global section
39 of the config file. 60 of the config file.
40 - 12 random prefix bytes are now properly supported, leading to
41 a fully random IV.
42 - use aes with a random key in counter-mode to generate IVs,
43 for speed reasons (generating 12 random bytes with openssl can
44 take longer than encrypting and mac'ing a 1.5kb packet, and IVs
45 do not need to be cryptographically strong random numbers
46 (and in fact, shouldn't be)).
47 - if-up scripts can now be specified with absolute paths. 61 - if-up scripts can now be specified with absolute paths.
48 - new global option: serial, to detect configuration mismatches. 62 - new global option: serial, to detect configuration mismatches.
49 - use HKDF as authentication proof, not HMAC or a plain hash 63 - use HKDF as authentication proof, not HMAC or a plain hash
50 (hint by Ilmari Karonen). 64 (hint by Ilmari Karonen).
51 - during rekeying or conenction establishments, hmac authentication 65 - during rekeying or connection establishments, hmac authentication
52 errors could occur and reset the connection. Transient hmac 66 errors could occur and reset the connection. Transient hmac
53 authentication errors are now being ignored for 3 seconds. 67 authentication errors are now being ignored for 3 seconds.
54 - log the reason for a conneciton loss. 68 - log the reason for a conneciton loss.
55 - use a (hopefully) constant time memcmp to compare internal secrets. 69 - use a (hopefully) constant time memcmp to compare internal secrets.
70 - fix a (harmless) errornous out of bounds stack read that would trigger
71 gcc's -fsanitize=address.
72 - bump old packet window size from 512 to 65536.
73 - update for big changes in openssl 1.1 API, wrap primitives
74 to make further changes easier.
75 - correctly check return values for openssl 1.0.0 and later.
76 - check for both public and private key file when deciding whether
77 to skip generating a key to avoid accidental overwrites.
56 78
572.25 Sat Jul 13 06:42:33 CEST 2013 792.25 Sat Jul 13 06:42:33 CEST 2013
58 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other 80 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other
59 protocols are enabled - this is necessary when you have nodes with 81 protocols are enabled - this is necessary when you have nodes with
60 completely unknown protocols, to force mediated connection requests. 82 completely unknown protocols, to force mediated connection requests.

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