lightningnetwork / lnd / 15951470896

coverage: 67.594% (-0.01%) from 67.606%
15951470896

Pull #9751

github

web-flow 
Merge 599d9b051 into 6290edf14
Pull Request #9751: multi: update Go to 1.23.10 and update some packages

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100.0
/netann/msg_hash.go
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package netann
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import (










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        "github.com/btcsuite/btcd/chaincfg/chainhash"










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)










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// MsgHashTag will prefix the message name and the field name in order to










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// construct the message tag.










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const MsgHashTag = "lightning"










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// MsgTag computes the full tag that will be used to prefix a message before










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// calculating the tagged hash. The tag is constructed as follows:










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//










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//        tag = "lightning"||"msg_name"||"field_name"










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func MsgTag(msgName, fieldName string) []byte {




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        tag := []byte(MsgHashTag)




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        tag = append(tag, []byte(msgName)...)




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        return append(tag, []byte(fieldName)...)




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}




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// MsgHash computes the tagged hash of the given message as follows:










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//










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//        tag = "lightning"||"msg_name"||"field_name"










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//        hash = sha256(sha246(tag) || sha256(tag) || msg)










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func MsgHash(msgName, fieldName string, msg []byte) *chainhash.Hash {




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        tag := MsgTag(msgName, fieldName)




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        return chainhash.TaggedHash(tag, msg)




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}




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