發送短信

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| \  / || | || | ||  /_   _//  /_   _//   ____    
|  \/  || | || | ||  `-| |,-    -| ||-   |    \\  
| .  . || | \\_/ ||    | ||     _| ||_   | [] ||  
|_|\/|_||  \____//     |_||    /_____//  |  __//  
`-`  `-`    `---`      `-`'    `-----`   |_|`-`   
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發送短信 : Efficient group handover authentication for secure 5G-based communications in platoons