Text this: ID-based Multi-signer Universal Designated Multi-verifier Signature Based on Discrete Logarithm

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