krb5int_aes_encrypt
krb5int_aes_encrypt,
krb5int_aes_encrypt,
krb5int_aes_encrypt(k, &ivec, &iov, 1);
err = krb5int_aes_encrypt(key, &enciv, &iov, 1);
krb5_error_code krb5int_aes_encrypt(krb5_key key, const krb5_data *ivec,
krb5int_aes_encrypt,
krb5int_aes_encrypt,