ensureCapacity(Byte.BYTES);
      buffer.put(b);
      return this;
    }

    @Override
    public Hasher putBytes(byte[] bytes, int off, int len) {
      ensureCapacity(len);
      buffer.put(bytes, off, len);
      return this;
    }

    @Override
    public Hasher putBytes(ByteBuffer bytes) {
      ensureCapacity(bytes.remaining());
      buffer.put(bytes);
      return this;
    }

&PublicKey{} return newPublicKey(p, pub) } func newPublicKey(pub *PublicKey, pubBytes []byte) (*PublicKey, error) { if l := len(pubBytes); l != publicKeySize { return nil, errors.New("ed25519: bad public key length: " + strconv.Itoa(l)) } // SetBytes checks that the point is on the curve. if _, err := pub.a.SetBytes(pubBytes); err != nil { return nil, errors.New("ed25519: bad public key") } copy(pub.aBytes[:], pubBytes) return pub, nil } // Domain separation prefixes used to disambiguate Ed25519...