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brontide/noise: use static default ephemeral keygen closure

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This commit is contained in:
Conner Fromknecht 2019-02-15 18:13:43 -08:00
parent 785740493e
commit 04febab85c
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1 changed files with 9 additions and 6 deletions
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15
brontide/noise.go
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@ -51,6 +51,12 @@ var (
// lightningPrologue is the noise prologue that is used to initialize // lightningPrologue is the noise prologue that is used to initialize
// the brontide noise handshake. // the brontide noise handshake.
lightningPrologue = []byte("lightning") lightningPrologue = []byte("lightning")
// ephemeralGen is the default ephemeral key generator, used to derive a
// unique ephemeral key for each brontide handshake.
ephemeralGen = func() (*btcec.PrivateKey, error) {
return btcec.NewPrivateKey(btcec.S256())
}
) )
// TODO(roasbeef): free buffer pool? // TODO(roasbeef): free buffer pool?
@ -385,12 +391,9 @@ func NewBrontideMachine(initiator bool, localPub *btcec.PrivateKey,
initiator, lightningPrologue, localPub, remotePub, initiator, lightningPrologue, localPub, remotePub,
) )
m := &Machine{handshakeState: handshake} m := &Machine{
handshakeState: handshake,
// With the initial base machine created, we'll assign our default ephemeralGen: ephemeralGen,
// version of the ephemeral key generator.
m.ephemeralGen = func() (*btcec.PrivateKey, error) {
return btcec.NewPrivateKey(btcec.S256())
} }
// With the default options established, we'll now process all the // With the default options established, we'll now process all the