The 12 year old brand business card printing, making 4442 IC card factory: support for globallogistics. Excellent quality, delivery on time. Factory price, direct chip that global delivery.
The 4442 card&
4442 card security characteristics of contact of domestic:
1, write protected area (32 bytes) of each byte can be individually write protection, writeprotection, content can not be changed (i.e. solidify data).
2, check the correct password before all the data can be read, if necessary, may be appropriate for data encryption.
3, check the correct password can be written or modified.
4, three bytes of user password, check the correct can be altered, effective to card electric.
5, password error counter initial value for password check error, 3, the 1 will reduce if the counter value is, 1, 0, card automatically lock, data can only be read, no further changes are also not password check; if not zero, one time password check is correct, restore to the initial value.
6, 21 ~ 26 byte address for user code, our company can provide users in this set up a global unique code, so that the user unified release (not to modify all the cards after the factory).
7056, byte address ~, ~ 7 before leaving the factory from the manufacturers to write, can not be changed.
8, pay attention to the password area also addressed, not in the 0 ~ 256 byte.
The company‘s two automatic contact type IC card packaging line, to provide professionalpackaging SLE, FM and other series of various types of contact chip cards and excellentprinting cards and customized processing services for domestic and foreign users;
