On Monday 22 October 2007 12:28, you wrote:
> Author: nextgens
> Date: 2007-10-22 11:28:56 +0000 (Mon, 22 Oct 2007)
> New Revision: 15472
>
> Modified:
> trunk/freenet/src/freenet/node/FNPPacketMangler.java
> Log:
> JFK:
> Renew DH Exponentials once every 15mins if we aren't connected yet.
This is executed on the ticker, we should avoid the latency by regenerating
off-thread.
>
> Modified: trunk/freenet/src/freenet/node/FNPPacketMangler.java
> ===================================================================
> --- trunk/freenet/src/freenet/node/FNPPacketMangler.java 2007-10-22
> 11:22:47
UTC (rev 15471)
> +++ trunk/freenet/src/freenet/node/FNPPacketMangler.java 2007-10-22
> 11:28:56
UTC (rev 15472)
> @@ -508,8 +508,11 @@
> */
> private void sendJFKMessage1(PeerNode pn, Peer replyTo) {
> if(logMINOR) Logger.minor(this, "Sending a JFK(1) message to
> "+pn);
> - if(pn.jfkContext == null) // get a new DH exponents only if
> needed
> + final long now = System.currentTimeMillis();
> + if((pn.jfkContext == null) || ((pn.jfkContextLifetime +
> 15*60*1000) <
now)) {
> pn.jfkContext = getLightDiffieHellmanContext();
> + pn.jfkContextLifetime = now;
> + }
> int offset = 0;
> byte[] myExponential =
stripBigIntegerToNetworkFormat(pn.jfkContext.myExponential);
> byte[] nonce = new byte[NONCE_SIZE];
> @@ -538,7 +541,11 @@
> */
> private void sendJFKMessage2(byte[] nonceInitator, byte[]
> hisExponential,
PeerNode pn, Peer replyTo) {
> if(logMINOR) Logger.minor(this, "Sending a JFK(2) message to
> "+pn);
> - pn.jfkContext = getLightDiffieHellmanContext();
> + final long now = System.currentTimeMillis();
> + if((pn.jfkContext == null) || ((pn.jfkContextLifetime +
> 15*60*1000) <
now)) {
> + pn.jfkContext = getLightDiffieHellmanContext();
> + pn.jfkContextLifetime = now;
> + }
> // g^r
> byte[] myExponential =
stripBigIntegerToNetworkFormat(pn.jfkContext.myExponential);
> // Nr
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