發送短信

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

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發送短信 : A web demo suite for basic number theory concepts used in symmetric cryptography (AES)