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package main | |
import( | |
"fmt" | |
"encoding/hex" | |
"golang.org/x/crypto/curve25519" | |
) | |
func main(){ | |
// decode given private key | |
privkey, _ := hex.DecodeString("803fcdab44e9958d2f8e4d47b5f0d481d6ddb79dd462a18ee65cabe94a9e455c") | |
var privkeyArray [32]byte | |
copy(privkeyArray[:], privkey) | |
// decode expected public key | |
expectedPubKey, _ := hex.DecodeString("26100e941bdd2103038d8dec9a1884694736f591ee814e66ae6e2e2284757136") | |
// create public key out of given private key | |
var pubkey [32]byte | |
curve25519.ScalarBaseMult(&pubkey, &privkeyArray) | |
fmt.Println("calculated public key:", hex.EncodeToString(pubkey[:])) | |
fmt.Println(" given public key:", hex.EncodeToString(expectedPubKey)) | |
} |
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