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brontide/noise: use statically allocated prologue

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This commit is contained in:
Conner Fromknecht 2019-02-15 18:13:34 -08:00
parent 4fce641d6a
commit 785740493e
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GPG key ID: E7D737B67FA592C7
1 changed files with 7 additions and 2 deletions
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9
brontide/noise.go
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@ -47,6 +47,10 @@ var (
// the cipher session exceeds the maximum allowed message payload.
ErrMaxMessageLengthExceeded = errors.New("the generated payload exceeds " +
"the max allowed message length of (2^16)-1")
// lightningPrologue is the noise prologue that is used to initialize
// the brontide noise handshake.
lightningPrologue = []byte("lightning")
)
// TODO(roasbeef): free buffer pool?
@ -377,8 +381,9 @@ type Machine struct {
func NewBrontideMachine(initiator bool, localPub *btcec.PrivateKey,
remotePub *btcec.PublicKey, options ...func(*Machine)) *Machine {
handshake := newHandshakeState(initiator, []byte("lightning"), localPub,
remotePub)
handshake := newHandshakeState(
initiator, lightningPrologue, localPub, remotePub,
)
m := &Machine{handshakeState: handshake}