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Refactoring code. Use protocol.HashData and HashSize. Move PublicKey2NodeID into protocol.

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This commit is contained in:
Kleissner
2021-10-17 17:15:22 +02:00
parent 39217ab5ef
commit 7be31a9e34
9 changed files with 37 additions and 58 deletions
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18
blockchain/Blockchain.go
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@@ -22,6 +22,7 @@ import (
"errors"
"sync"
"github.com/PeernetOfficial/core/protocol"
"github.com/PeernetOfficial/core/store"
"github.com/btcsuite/btcd/btcec"
)
@@ -41,15 +42,6 @@ type Blockchain struct {
sync.Mutex // synchronized access to the header
}
// HashFunction must be set by the caller to the hash function (blake3) that shall be used.
var HashFunction func(data []byte) (hash []byte)
// hashSize is the blake3 digest size in bytes
const hashSize = 32
// PublicKey2NodeID must be set by the caller to the function generating the node ID from the public key. Typically it would use the HashFunction.
var PublicKey2NodeID func(publicKey *btcec.PublicKey) (nodeID []byte)
// Init initializes the given blockchain. It creates the blockchain file if it does not exist already.
func Init(privateKey *btcec.PrivateKey, path string) (blockchain *Blockchain, err error) {
blockchain = &Blockchain{privateKey: privateKey, path: path}
@@ -103,7 +95,7 @@ func (blockchain *Blockchain) headerRead() (found bool, err error) {
return true, errors.New("future blockchain format not supported. You must go back to the future!")
}
blockchain.publicKey, _, err = btcec.RecoverCompact(btcec.S256(), signature, HashFunction(buffer[0:18]))
blockchain.publicKey, _, err = btcec.RecoverCompact(btcec.S256(), signature, protocol.HashData(buffer[0:18]))
return
}
@@ -118,7 +110,7 @@ func (blockchain *Blockchain) headerWrite(height, version uint64) (err error) {
binary.LittleEndian.PutUint64(buffer[8:16], version)
binary.LittleEndian.PutUint16(buffer[16:18], 0) // Current format is 0
signature, err := btcec.SignCompact(btcec.S256(), blockchain.privateKey, HashFunction(buffer[0:18]), true)
signature, err := btcec.SignCompact(btcec.S256(), blockchain.privateKey, protocol.HashData(buffer[0:18]), true)
if err != nil {
return err
@@ -250,7 +242,7 @@ func (blockchain *Blockchain) IterateDeleteRecord(callback func(record *BlockRec
// store the block
blockchain.database.Set(blockNumberToKey(block.Number), raw)
lastBlockHash = HashFunction(raw)
lastBlockHash = protocol.HashData(raw)
}
// update the blockchain header in the database
@@ -293,7 +285,7 @@ func (blockchain *Blockchain) Append(RecordsRaw []BlockRecordRaw) (newHeight, ne
return 0, 0, StatusBlockNotFound
}
block.LastBlockHash = HashFunction(previousBlockRaw)
block.LastBlockHash = protocol.HashData(previousBlockRaw)
}
block.Number = blockchain.height