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