// parseDSA parses DSA public key material from the given Reader. See RFC 4880, // section 5.5.2. func (pk *PublicKey) parseDSA(r io.Reader) (err error) { pk.p.bytes, pk.p.bitLength, err = readMPI(r) if err != nil { return } pk.q.bytes, pk.q.bitLength, err = readMPI(r) if err != nil { return } pk.g.bytes, pk.g.bitLength, err = readMPI(r) if err != nil { return } pk.y.bytes, pk.y.bitLength, err = readMPI(r) if err != nil { return } dsa := new(dsa.PublicKey) dsa.P = new(big.Int).SetBytes(pk.p.bytes) dsa.Q = new(big.Int).SetBytes(pk.q.bytes) dsa.G = new(big.Int).SetBytes(pk.g.bytes) dsa.Y = new(big.Int).SetBytes(pk.y.bytes) pk.PublicKey = dsa return }