frostfs-s3-gw/creds/hcs/secret.go

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package hcs
import (
"encoding/hex"
"io"
"io/ioutil"
"os"
"golang.org/x/crypto/curve25519"
)
func (s *secret) Bytes() []byte {
buf := make([]byte, curve25519.ScalarSize)
copy(buf, *s)
return buf
}
func (s *secret) String() string {
buf := s.Bytes()
return hex.EncodeToString(buf)
}
func (s *secret) PublicKey() PublicKey {
sk := s.Bytes()
pb, _ := curve25519.X25519(sk, curve25519.Basepoint)
pk := public(pb)
return &pk
}
func (s *secret) WriteTo(w io.Writer) (int64, error) {
sb := s.Bytes()
sl, err := w.Write(sb)
return int64(sl), err
}
func privateKeyFromBytes(val []byte) (PrivateKey, error) {
sk := secret(val)
return &sk, nil
}
func privateKeyFromString(val string) (PrivateKey, error) {
data, err := hex.DecodeString(val)
if err != nil {
return nil, err
}
return privateKeyFromBytes(data)
}
func loadPrivateKey(val string) (PrivateKey, error) {
data, err := ioutil.ReadFile(val)
if os.IsNotExist(err) {
return privateKeyFromString(val)
} else if err != nil {
return nil, err
}
return privateKeyFromBytes(data)
}