Diorin wrote:Is it possible to check if the cards have been already blocked due to too much failed tries?
Yes! The card will be in the TERMINATED state, so all commands except GET DATA will fail.
Search found 237 matches
- Tue Jan 26, 2016 4:45 am
- Forum: Card Products
- Topic: Check failed authentication counter
- Replies: 1
- Views: 6067
Re: Check failed authentication counter
No. But it is possible to change the threshold for locking a card.
Yes! The card will be in the TERMINATED state, so all commands except GET DATA will fail.
Yes! The card will be in the TERMINATED state, so all commands except GET DATA will fail.
- Tue Jan 26, 2016 3:46 am
- Forum: Questions & Answers
- Topic: How to make sure CAP File never be modified by anybody
- Replies: 1
- Views: 4749
Re: How to make sure CAP File never be modified by anybody
DAP verifies that the content was not altered and is allowed to be loaded onto the card. The card personalizer needs to provide you a security domain's DAP key. You need to caclulate a message digest of your cap file and give this information out to the person who is authorized to load the cap file....
- Tue Jan 26, 2016 3:35 am
- Forum: Algorithm School
- Topic: Triple DES in java card
- Replies: 1
- Views: 7920
Re: Triple DES in java card
Did you try to use different buffers as input/output for the Cipher.doFinal() method ?
The Cipher.doFinal() method is known for being particularly unpredictable when the input and output buffers overlap.
The Cipher.doFinal() method is known for being particularly unpredictable when the input and output buffers overlap.
- Tue Jan 26, 2016 3:23 am
- Forum: Questions & Answers
- Topic: I got 0x6985 and 0x611C from my java card in different scenario.
- Replies: 5
- Views: 13057
Re: I got 0x6985 and 0x611C from my java card in different scenario.
You may try to append 0x1C to APDU command, just like:
80 50 00 00 0X AID 1C
note: 0x is the AID's length.
80 50 00 00 0X AID 1C
note: 0x is the AID's length.
- Tue Jan 12, 2016 10:49 pm
- Forum: Questions & Answers
- Topic: Do some timing in javacard
- Replies: 1
- Views: 5006
Re: Do some timing in javacard
System.nanoTime() is just for your desktop Java code. As far as I know there is no internal clock in a JavaCard3 so you will not find any timing methods.
- Thu Jan 07, 2016 4:54 am
- Forum: Card Products
- Topic: Implement ECDSA signature on J3D081
- Replies: 1
- Views: 6334
Re: Implement ECDSA signature on J3D081
ECDSA with SHA256 can be implemented on JCOP J3D081 card.
For J3D081, ECDSA Sigatures methods are as follows.
ALG_ECDSA_SHA
ALG_ECDSA_PLAIN
ALG_ECDSA_SHA224
ALG_ECDSA_SHA256
For J3D081, ECDSA Sigatures methods are as follows.
ALG_ECDSA_SHA
ALG_ECDSA_PLAIN
ALG_ECDSA_SHA224
ALG_ECDSA_SHA256
- Thu Jan 07, 2016 4:30 am
- Forum: Questions & Answers
- Topic: What are the cipher class supporting ECC?
- Replies: 1
- Views: 4962
Re: What are the cipher class supporting ECC?
As far as I know, your card does not support ECC ciphers. But for ECC Signature and KeyAgreement, below is the list of methods that the J3D081 supports. Hope it helps. Sigatures ALG_ECDSA_SHA ALG_ECDSA_PLAIN ALG_ECDSA_SHA224 ALG_ECDSA_SHA256 Key Agreement ALG_EC_SVDP_DH ALG_EC_SVDP_DH_KDF ALG_EC_SVD...
- Thu Jan 07, 2016 3:46 am
- Forum: Communication
- Topic: Are there functions like BigInteger.modPow, modMul in JavaCard?
- Replies: 5
- Views: 28833
Re: Are there functions like BigInteger.modPow, modMul in JavaCard?
Maybe you can try to use BigNat library.
- Thu Jan 07, 2016 3:29 am
- Forum: Card Products
- Topic: Does NXP J3D081 fit my requirement?
- Replies: 1
- Views: 6312
Re: Does NXP J3D081 fit my requirement?
Yes, it is. We have done much more than you mentioned with NXP J3D081.
- Thu Dec 31, 2015 2:42 am
- Forum: Card Products
- Topic: What is its data field in EXTERNAL AUTHENTICATE command?
- Replies: 2
- Views: 15365
Re: What is its data field in EXTERNAL AUTHENTICATE command?
The EXTERNAL AUTHENTICATE command is used by the card to authenticate the host and to determine the level of security required for all subsequent commands. external_authenticate.png From the table, you can see the data field sent in the command. The data field of the command message contains the hos...