mirror of
https://github.com/lightningnetwork/lnd.git
synced 2026-08-13 12:32:48 +02:00
8047149c6a
Migrate all btcd dependencies to the new per-package v2 modules (wire/v2, txscript/v2, chaincfg/v2, chainhash/v2, btcutil/v2, psbt/v2, btcec/v2) introduced by btcd v0.26.0, and pin the tagged ecosystem versions: btcwallet v0.17.0, neutrino v0.18.0 and lightning-onion v1.4.0. The bulk of the import rewrite was produced by the scripted diff from https://github.com/btcsuite/btcd/pull/2547 (followed by 'make rpc'). The address symbols that moved out of btcutil into the new address package are imported as btcaddr where a local "address" variable would otherwise shadow them. The go.mod/go.sum updates and the remaining manual compilation fixes are folded into this single commit so it builds on its own (the migration was previously split into a reproducible scripted-diff plus follow-ups, intended to be squashed on merge).
30 lines
877 B
Go
30 lines
877 B
Go
package netann
|
|
|
|
import (
|
|
"github.com/btcsuite/btcd/chainhash/v2"
|
|
)
|
|
|
|
// MsgHashTag will prefix the message name and the field name in order to
|
|
// construct the message tag.
|
|
const MsgHashTag = "lightning"
|
|
|
|
// MsgTag computes the full tag that will be used to prefix a message before
|
|
// calculating the tagged hash. The tag is constructed as follows:
|
|
//
|
|
// tag = "lightning"||"msg_name"||"field_name"
|
|
func MsgTag(msgName, fieldName string) []byte {
|
|
tag := []byte(MsgHashTag)
|
|
tag = append(tag, []byte(msgName)...)
|
|
|
|
return append(tag, []byte(fieldName)...)
|
|
}
|
|
|
|
// MsgHash computes the tagged hash of the given message as follows:
|
|
//
|
|
// tag = "lightning"||"msg_name"||"field_name"
|
|
// hash = sha256(sha246(tag) || sha256(tag) || msg)
|
|
func MsgHash(msgName, fieldName string, msg []byte) *chainhash.Hash {
|
|
tag := MsgTag(msgName, fieldName)
|
|
|
|
return chainhash.TaggedHash(tag, msg)
|
|
}
|