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

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發送短信 : Generic Internal State Recovery on Strengthened HMAC: n-bit Secure HMAC Requires Key in All Blocks