發送短信 : Trust Establishment in Large Scale Grid Settings

  _  __    ______   __   _    _    _     _____   
 | |/ //  /_   _// | || | || | || | ||  |__  //  
 | ' //    -| ||-  | '--' || | || | ||    / //   
 | . \\    _| ||_  | .--. || | \\_/ ||   / //__  
 |_|\_\\  /_____// |_|| |_||  \____//   /_____|| 
 `-` --`  `-----`  `-`  `-`    `---`    `-----`