Construction verification method and device capable of verifying security two-dimensional code offline

摘要: Embodiments of the invention provide a construction verification method and device capable verifying security two-dimensional code offline. The comprises following steps inputting information that needs coding type information, carrying out digital signature operation encryption on input according to an release type, constructing combination encoding generate which can be verified off-line rule; identifying included analyzing decoding obtain independent sub-information code, certificate effectiveness effective time limit information; if all verifications pass, showing offline is correct source credible, otherwise incredible. have beneficial effects cannot tampered, counterfeited denied, public or private released, integrity authenticity without network connection.