我们在项目中使用的SMS4实现的加密算法，不仅使用sms4还有4次扰码进行的高安全的加密方法。-We have used in the project implementation SMS4 encryption algorithm, not only to use sms4 there four times scrambling codes of the high-security encryption methods.

number of available descramblers (keys).type of supported scrambling system.