private key write encryption

Question

Hi, My application sends HP softfont data to an industrial printer to print signatures on checks. Is there any asymmetric encryption software that uses the private key for writing? The printed check signature are always insecure for reading, anybody can scan them. I need strong write protection of my softfonts that will work even if somebody hacks my embedded read key. Thanks, Mark

Answer 1

but my client may be without .Net FrameWork in his PC. so i think i can't use .Net Remoting.

Answer 2

Why not....! You can use the .NET Remotting with HTTP Channel.