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choimillen

When you create a byte array, all values are initialized to 0. Looking at your loops, it seems you're adding 0's only. Smart card operating systems normally do a read before write, to make sure not the same value is written. It saves time, and in case of EEPROM also to prolong the lifetime. I think ...

choimillen

Due to security reasons reading the key back is prohibited. You can only get information what type of key is stored.

choimillen

You cannot do cryptographic operations with ISD. You must write an applet and use KeyPair and Signature class.

choimillen

For T=0, JCRE needs to send 61xx , where xx is the number of expected bytes. The CAD then sends a GET RESPONSE, with the same CLA byte as before and Le == xx. Finally the JCRE send the response.

choimillen

You cannot use all the Data Grouping Index, 2 byte TLV . Some are already populated and can only be read, others cannot be written. Use the 0070 Data Grouping Index to put your data into the Security Domain's data store.

choimillen

TCP is mandatory, and APDU is mandatory as well, as you need to be compatible to the Classic Edition. You need to run a server on the card and your communication layer has to process the TCP over IP/UDP/USB packets beforehand.

choimillen

Please add this command:

Code: Select all

apdu.setIncomingAndReceive();

choimillen

Build a key using keybuilder methods and cast: RSAPublicKey k1 = (RSAPublicKey)KeyBuilder.buildKey(KeyBuilder.TYPE_RSA_PUBLIC, KeyBuilder.LENGTH_RSA_1024); Then, use: k1.setExponent(bytearray, offsettoexponent); k1.setModulus(bytearray, offsettomodulus); k1.getExponent(destination, wheretostore); .....

choimillen

A SSD does not have the same functionality as an ISD. ISD is open in GP terms. Cards may have a load file pre-loaded that can instantiate an SSD.

choimillen

The below is the related description quoted from Chapter SecurityLevel in GlobalPlatform spec. SCP02 -> Secure Communication -> Security Level C_MAC after a successful processing of an EXTERNAL AUTHENTICATE command with P1 indicating C-MAC (P1='x1' or 'x3') C_DECRYPTION after a successful processing...

Search found 17 matches: re:

Re: Doubt about JavaCard Memory

Re: Cryptographic operations with the Card Manager

Re: Cryptographic operations with the Card Manager

Re: Error 6E00 when receiving the response data under T0

Re: command usage of GET-DATA and STORE-DATA

Re: TCP of Java Card 3.0

Re: Find the data back in Buffer

Re: How to use keyBuilder class

Re: supplementary security domain

Re: Send GP commands with MAC via pyApduTool or pyResMan

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