Binary graphic code creating method and system and binary graphic code authenticating method and system

The invention discloses a binary graphic code creating method and system and a binary graphic code authenticating method and system. The method for creating an identifiable binary graphic code at least comprises the following steps of: creating a binary graphic coding pattern for to-be-coded information in response to a request to create the binary graphic code; adding microstructure features to the binary graphic coding pattern; extracting the binary graphic coding pattern and the microstructure features; and recording the binary graphic coding pattern and the microstructure features as all or part of standards for authenticating the binary graphic code.