type Aes128Ctr = ctr::Ctr128BE<aes::Aes128>;
type Aes256Ctr = ctr::Ctr128BE<aes::Aes256>;

cipher::stream_cipher_test!(aes128_ctr_core, Aes128Ctr, "aes128-ctr");
cipher::stream_cipher_test!(aes256_ctr_core, Aes256Ctr, "aes256-ctr");
cipher::stream_cipher_seek_test!(aes128_ctr_seek, Aes128Ctr);
cipher::stream_cipher_seek_test!(aes256_ctr_seek, Aes256Ctr);