A dual authentication mechanism is provided within GE's algorithm because the information passed is also encrypted or scrambled to prevent unauthorized viewing.
因为通过的信息也被加密或被扰乱防止未批准的观察，双重认证机构在GE的算法之内提供。
2
Compress and decompress. A algorithm or program, which compresses video for storing and decompress video for viewing, is called codec.