func SeededTestKeyPair(seed int64) (ci.PrivKey, ci.PubKey, error) { return ci.GenerateKeyPairWithReader(ci.RSA, 512, u.NewSeededRand(seed)) }
func RandTestKeyPair(bits int) (ci.PrivKey, ci.PubKey, error) { return ci.GenerateKeyPairWithReader(ci.RSA, bits, u.NewTimeSeededRand()) }