drbg.Read(priv.seed[:]) precomputePrivateKey(priv) if err := fipsPCT(priv); err != nil { // This clearly can't happen, but FIPS 140-3 requires that we check. panic(err) } return priv, nil } func NewPrivateKeyFromSee(seed []byte) (*PrivateKey, error) { priv := &PrivateKey{} return newPrivateKeyFromSee(priv, seed) } func newPrivateKeyFromSee(priv *PrivateKey, seed []byte) (*PrivateKey, error) { fips140.RecordApproved() if l := len(seed); l != seedSize { return nil, errors.New("ed25519: bad seed length: " + strconv.Itoa(l))...