1 | GVPE NEWS |
1 | GVPE NEWS |
2 | |
2 | |
3 | TODO: bridge mode, finally? |
3 | 3.0 Thu Nov 10 15:39:58 CET 2016 |
4 | TODO: gcm mode? |
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5 | TODO: replace ripemd160 as the only authentication hash. |
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6 | TODO: increase rsa size. |
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7 | TODO: replace transport bits by transport endpoint structs? |
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8 | TODO: http://incog-izick.blogspot.de/2011/08/using-openssl-aes-gcm.html |
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9 | TODO: http://stackoverflow.com/questions/12153009/openssl-c-example-of-aes-gcm-using-evp-interfaces |
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10 | |
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11 | TODO: verify |
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12 | TODO: make sense of overhead calculation |
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13 | TODO: if-up &c should not be scripts? |
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14 | TODO: ipv6 |
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15 | TODO: gvpectrl should not use default privatekey,. or maybe document it better |
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16 | - INCOMPATIBLE CHANGE: core protocol version 1.0. |
4 | - INCOMPATIBLE CHANGE: core protocol version 1.0. |
17 | - INCOMPATIBLE CHANGE: node sections are now introduced |
5 | - INCOMPATIBLE CHANGE: node sections are now introduced |
18 | with "node nodename", not "node = nodename". |
6 | with "node nodename", not "node = nodename". |
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7 | - INCOMPATIBLE CHANGE: gvpectrl -g will now generate a single |
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8 | keypair, while -G will try to generate all keypairs as before. |
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9 | - openssl 1.0.2 is the latest supported openssl release, |
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10 | openssl 1.1.0 is not supported at the moment as the work to |
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11 | make it compatible to both versions is just too much. a switch |
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12 | to openssl 1.1 or another library will be done in a future release. |
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13 | - update examples to not generate keys centrally, but locally on each |
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14 | node. |
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15 | - add workaround for temporary/rare ENOBUFS condition. |
19 | - while individual packets couldn't be replayed, a whole session |
16 | - while individual packets couldn't be replayed, a whole session |
20 | could be replayed - this has been fixed by an extra key exchange. |
17 | could be replayed - this has been fixed by an extra key exchange. |
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18 | - fix a delete vs. delete [] mismatch in the central logging function. |
21 | - in addition to rsa key exchange and authentication, the handshake now |
19 | - in addition to rsa key exchange and authentication, the handshake now |
22 | adds a diffie-hellman key exchange (using curve25119) for perfect |
20 | adds a diffie-hellman key exchange (using curve25119) for perfect |
23 | forward secrecy. mac and cipher keys are derived using HKDF. |
21 | forward secrecy. mac and cipher keys are derived using HKDF. |
24 | - rsa key sizes are now configurable and larger (default is 3072). |
22 | - rsa key sizes are now configurable and larger (default is 3072). |
25 | correspondingly, the minimum mtu is no longer 296 but 576. |
23 | correspondingly, the minimum mtu is no longer 296 but 576. |
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32 | - the pid-file now accepts %s as nodename as elsewhere. |
30 | - the pid-file now accepts %s as nodename as elsewhere. |
33 | - switch to counter mode (only aes supported at the moment in |
31 | - switch to counter mode (only aes supported at the moment in |
34 | openssl). this gets rid of the need to generate a random iv, |
32 | 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 |
33 | is likely more secure (and, as a side effect, gets rid of |
36 | slow randomness generation. counter mode is often faster |
34 | slow randomness generation. counter mode is often faster |
37 | then cbc mode as well). |
35 | then cbc mode as well, and packets are smaller). |
38 | - no longer use RAND_bytes to generate session keys - you NEED |
36 | - 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 |
37 | a real source of entropy now (e.g. egd or /dev/random - see the |
40 | openssl documentation). |
38 | openssl documentation). |
41 | - multiple node statements for the same node are now supported |
39 | - multiple node statements for the same node are now supported |
42 | and will be merged. |
40 | and will be merged. |
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44 | of the config file. |
42 | of the config file. |
45 | - if-up scripts can now be specified with absolute paths. |
43 | - if-up scripts can now be specified with absolute paths. |
46 | - new global option: serial, to detect configuration mismatches. |
44 | - new global option: serial, to detect configuration mismatches. |
47 | - use HKDF as authentication proof, not HMAC or a plain hash |
45 | - use HKDF as authentication proof, not HMAC or a plain hash |
48 | (hint by Ilmari Karonen). |
46 | (hint by Ilmari Karonen). |
49 | - during rekeying or conenction establishments, hmac authentication |
47 | - during rekeying or connection establishments, hmac authentication |
50 | errors could occur and reset the connection. Transient hmac |
48 | errors could occur and reset the connection. Transient hmac |
51 | authentication errors are now being ignored for 3 seconds. |
49 | authentication errors are now being ignored for 3 seconds. |
52 | - log the reason for a conneciton loss. |
50 | - log the reason for a conneciton loss. |
53 | - use a (hopefully) constant time memcmp to compare internal secrets. |
51 | - use a (hopefully) constant time memcmp to compare internal secrets. |
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52 | - fix a (harmless) errornous out of bounds stack read that would trigger |
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53 | gcc's -fsanitize=address. |
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54 | - bump old packet window size from 512 to 65536. |
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55 | - update for big changes in openssl 1.1 API, wrap primitives |
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56 | to make further changes easier. |
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57 | - correctly check return values for openssl 1.0.0 and later. |
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58 | - check for both public and private key file when deciding whether |
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59 | to skip generating a key to avoid accidental overwrites. |
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60 | |
55 | 2.25 Sat Jul 13 06:42:33 CEST 2013 |
61 | 2.25 Sat Jul 13 06:42:33 CEST 2013 |
56 | - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other |
62 | - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other |
57 | protocols are enabled - this is necessary when you have nodes with |
63 | protocols are enabled - this is necessary when you have nodes with |
58 | completely unknown protocols, to force mediated connection requests. |
64 | completely unknown protocols, to force mediated connection requests. |