/
util.go
43 lines (34 loc) · 1.05 KB
/
util.go
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package node
import (
"log"
"math/rand"
"github.com/libp2p/go-libp2p-core/crypto"
"github.com/libp2p/go-libp2p-core/peer"
multiaddr "github.com/multiformats/go-multiaddr"
)
// MakePeer takes a fully-encapsulated address and converts it to a
// peer ID / Multiaddress pair
func MakePeer(dest string) (peer.ID, multiaddr.Multiaddr) {
ipfsAddr, err := multiaddr.NewMultiaddr(dest)
if err != nil {
log.Fatalf("Err on creating host: %v", err)
}
peerIDStr, err := ipfsAddr.ValueForProtocol(multiaddr.P_IPFS)
if err != nil {
log.Fatalf("Err on creating peerIDStr: %v", err)
}
peerID, err := peer.Decode(peerIDStr)
if err != nil {
log.Fatalf("Err on decoding %s: %v", peerIDStr, err)
}
return peerID, ipfsAddr
}
// GeneratePrivateKey - creates a private key with the given seed
func GeneratePrivateKey(seed int64) crypto.PrivKey {
randBytes := rand.New(rand.NewSource(seed))
prvKey, _, err := crypto.GenerateKeyPairWithReader(crypto.RSA, 2048, randBytes)
if err != nil {
log.Fatalf("Could not generate Private Key: %v", err)
}
return prvKey
}