Dear Everyone I readed the Cryptoflex Programmer's Guide, which supports enciphering and deciphering data with DES or 3DES keys in CBC mode. It is said that the DES Block Init followed by DES Block command can encrypt or decrypt a block of data exceeds 232 bytes. The problem is that if the data is much longer than 232 bytes, we have to use one DES Block Init and several DES Block command. If we use APDU manager to perform this task, it would be difficult and time consuming. Firstly, we have to covert the data into a hexadecimal value and divided into blocks. Then, to type the command with the corresponding block of data one by one. I don't think this is the only way to perform this function. I think it could write this function into a high level of programming language, for example Java or C, to achieve it. However, I don't know how to do it. How can the card understand the language? Can anyone provide me some information or examples? Thank you very much indeed.
Jacky e-mail: [EMAIL PROTECTED] ______________________________________________________ Free Email - http://www.lycos.co.uk/service/lycosmail/ The funniest email attachments on the web - http://viral.lycos.co.uk Free domain names - http://webcentre.lycos.co.uk
