Low cost two-dimensional bar code by bar code scanner to read the information available with the mobile carrier, can not rely on the use of databases and computer networks, security, anti-counterfeiting features and strong advantages.

Data collection, data transfer aspects dimensional bar code has a natural advantage. First, a two-dimensional bar code storage capacity of up to thousands of bytes, so it can be useful for storing information; secondly, because the choice of the leading error correction algorithms, in the case of some damage, is still able to recover the original information intact. Thus the use of two-dimensional bar transfer information is safe, secure, fast, and efficient features.

    Data security and reliability of all information within the two-dimensional codes with high skills are final, it has a strong anti-counterfeiting capabilities. Selected according to the two-dimensional code card skills PVC surface has large quantities in the United States, the Philippines, South Africa and other countries, prolonged use of examples. PVC two-dimensional code card has a service life of at least 10 years or so.

    Dimensional bar code is encrypted using the principle of the world's leading combination of mathematics, mathematics and cryptography linked to all available digital information (such as: number, fingerprints, palm prints, photos, iris, etc.) as the original data encryption algorithms, generating a set of encrypted data file (ie, encrypted two-dimensional bar code). The center of a cryptographic operation that the encryption key, in the user's hand to grasp it. User with a key to the encrypted data file (encrypted two-dimensional bar code) reader decrypts rehabilitation into data mode, compared with the original data in order to distinguish the authenticity. Encryption key information capacity of up to 128 therebetween, in fact, base indecipherable. Together, we will link the existing data encryption technology sophisticated information security skills to enable encrypted two-dimensional bar skills in the use of more robust document category.