The Structure of a Signature via the Net

The signature can be copied or falsiˉed, especially being sent via the Net. The method being proposed is an algorithm or cryptosystem to guarantee the transmitted information is completed and correct as well as clearly sure of who was the signer. The philosophy is if a sender has a unique codebook and the cipher text can never be written by another person and once the correct receiver uses his unique codebook to solve the cipher text for the plaintext, it is sure that the sender is the correct sender and the receiver is the correct receiver.