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routing: use updated sphinx.NewOnionPacket method

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In this commit, we update the routing package to use the new
`sphinx.NewOnionPacket` method. The new version of this method allows us
to specify _how_ the packet should be filled before it's used to create
a mix-header. This isn't a fundamental change (totally backwards
compatible), instead it plugs a privacy leak that may have revealed to
the destination how long the true route was.
This commit is contained in:
Olaoluwa Osuntokun 2020-01-06 18:28:54 -08:00
parent e96e011520
commit 128be259a7
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1 changed files with 1 additions and 0 deletions
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routing/router.go
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@ -1518,6 +1518,7 @@ func generateSphinxPacket(rt *route.Route, paymentHash []byte,
// privacy preserving source routing across the network. // privacy preserving source routing across the network.
sphinxPacket, err := sphinx.NewOnionPacket( sphinxPacket, err := sphinx.NewOnionPacket(
sphinxPath, sessionKey, paymentHash, sphinxPath, sessionKey, paymentHash,
sphinx.DeterministicPacketFiller,
) )
if err != nil { if err != nil {
return nil, nil, err return nil, nil, err