A novel chaotic digital anti-counterfeiting technology is proposed and improved based on chaotic cryptography

ordering to resolve the long-term technical problems.A new chaotic encryption algorithm is studied to generate commodity security codes and verification codes

and a new type of checking algorithm of "two-way authentication" is proposed which can provide many ways to search and multiple query verification

so as to form and optimize an anti-counterfeiting mechanism of "two codes

two-way authentication".Then a comprehensive digital anti-counterfeiting system is constructed to realize intelligent identification

which provides not only site identification but also checking by phone

short message and network (Internet or WAP) .It is proved that the proposed technology is effective and reliable.