發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : A scalable signature scheme for video authentication