xx, ok := x.(*PublicKey)
	if !ok {
		return false
	}
	return bigIntEqual(pub.N, xx.N) && pub.E == xx.E
}

// OAEPOptions is an interface for passing options to OAEP decryption using the
// crypto.Decrypter interface.
type OAEPOptions struct {
	// Hash is the hash function that will be used when generating the mask.
	Hash crypto.Hash

	// MGFHash is the hash function used for MGF1.

pkg crypto/elliptic, type CurveParams struct, Name string
pkg crypto/rsa, method (*PrivateKey) Decrypt(io.Reader, []uint8, crypto.DecrypterOpts) ([]uint8, error)
pkg crypto/rsa, type OAEPOptions struct
pkg crypto/rsa, type OAEPOptions struct, Hash crypto.Hash
pkg crypto/rsa, type OAEPOptions struct, Label []uint8
pkg crypto/rsa, type PKCS1v15DecryptOptions struct
pkg crypto/rsa, type PKCS1v15DecryptOptions struct, SessionKeyLen int

	priv := new(PrivateKey)
	priv.PublicKey = PublicKey{N: n, E: testEncryptOAEPData[0].e}
	priv.D = d
	sha1 := crypto.SHA1
	sha256 := crypto.SHA256

	out, err := priv.Decrypt(random, in, &OAEPOptions{MGFHash: sha1, Hash: sha256})

	if err != nil {
		t.Errorf("error: %s", err)
	} else if !bytes.Equal(out, msg) {
		t.Errorf("bad result %#v (want %#v)", out, msg)
	}
}