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2 | |
| 3 | TODO: bridge mode, finally? |
3 | TODO: bridge mode, finally? |
| 4 | TODO: gcm mode? |
4 | TODO: gcm mode? |
| 5 | TODO: replace ripemd160 as the only authentication hash. |
5 | TODO: replace ripemd160 as the only authentication hash. |
| 6 | TODO: increase rsa size. |
6 | TODO: increase rsa size. |
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7 | TODO: replace transport bits by transport endpoint structs? |
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8 | TODO: ecdh to avoid session replay attacks |
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9 | TODO: http://incog-izick.blogspot.de/2011/08/using-openssl-aes-gcm.html |
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10 | TODO: http://stackoverflow.com/questions/12153009/openssl-c-example-of-aes-gcm-using-evp-interfaces |
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11 | |
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12 | proposed: 3 types, req, resreq, res |
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13 | |
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14 | req (hmac1) rsa(seqno1 hmac1 aes1 seqno2 hmac2 aes2 auth) ecdh1 |
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15 | res (hmac1) hash(rsa-contents) ecdh2 |
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16 | |
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17 | req hmac0(*) rsa(seqno hmac0 hmac aes auth) hkdf-salt ecdh1 |
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18 | res hmac0(rsa-contents ecdh2) |
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19 | hmac_key = hkdf(hkdf-salt, hmac | ecdh) |
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20 | aes_key = hkdf(hkdf-salt, aes | ecdh) |
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21 | |
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22 | - INCOMPATIBLE CHANGE: core protocol version 1.0. |
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23 | - while individual packets couldn't be replayed, a whole session |
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24 | could be replayed - this has been fixed by an extra key exchange. |
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25 | - in addition to rsa key exchange and authentication, the handshake now |
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26 | adds a diffie-hellman key exchange (using curve25119) for perfect |
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27 | forward secrecy. mac and cipher keys are derived using HKDF. |
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28 | - rsa key sizes are now configurable and larger (default is 3072). |
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29 | correspondingly, the minimum mtu is no longer 296 but 576. |
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30 | - fixed a potential (unverified) buffer overrun on rsa decryption. |
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31 | - RAND_bytes was used when generating session keys, potentially |
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32 | leading to temporary freezes when entropy was low. |
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33 | - gvpectrl no longer generates all missing public keys, but |
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34 | only missing private keys. private keys are also put |
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35 | into the configured location. |
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36 | - the pid-file now accepts %s as nodename as elsewhere. |
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37 | |
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38 | 2.25 Sat Jul 13 06:42:33 CEST 2013 |
| 8 | - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other |
39 | - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other |
| 9 | protocols are enabled - this is necessary when you have nodes with |
40 | protocols are enabled - this is necessary when you have nodes with |
| 10 | completely unknown protocols, to force mediated connection requests. |
41 | completely unknown protocols, to force mediated connection requests. |
| 11 | - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2. |
42 | - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2. |
| 12 | - core protocol version 0.1, compatible with older releases. |
43 | - core protocol version 0.1, compatible with older releases. |
