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  ______     ___    __    __     ___     ______   
 /_____//   / _ \\  \ \\ / //   / _ \\  |      \\ 
 `____ `   | / \ ||  \ \/ //   / //\ \\ |  --  // 
 /___//    | \_/ ||   \  //   |  ___  |||  --  \\ 
 `__ `      \___//     \//    |_||  |_|||______// 
 /_//       `---`       `     `-`   `-` `------`  
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發送短信 : DDoS detection mechanism using trust-based evaluation system in VANET