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Search found 18 matches
- Mon Aug 14, 2017 6:07 am
- Forum: Questions & Answers
- Topic: ATS value
- Replies: 2
- Views: 9537
Re: ATS value
As fa as I know, ISO 14443-4 does not specify what is included in the information field. And also we can not see what protocol is used on top of T=CL from the ATS.
- Fri Feb 10, 2017 5:12 am
- Forum: Questions & Answers
- Topic: DES decryption implementation in java and java card
- Replies: 3
- Views: 10617
Re: DES decryption implementation in java and java card
I know that calling doFinal will give me final result. The problem is that in Java, if input data is less than 16 bytes,there will be no output after calling update . But in javacard it will give output of update method if the input data is more than 8 bytes length. Is there any advantage between th...
- Thu Feb 09, 2017 11:01 pm
- Forum: Questions & Answers
- Topic: DES decryption implementation in java and java card
- Replies: 3
- Views: 10617
DES decryption implementation in java and java card
Recently, I found a difference between DES decryption implementation in java and java card. In UPDATE method, DES CBC (M1, M2, or, PK5) - In java, it need to have at least 16 bytes input to have output data. - In java card, you should have at least 8 byte to have output data. Why does this differenc...
- Wed Nov 02, 2016 6:07 am
- Forum: Card Products
- Topic: The pain of using A22CR's RSA function
- Replies: 7
- Views: 15512
Re: The pain of using A22CR's RSA function
My card is a white card so I don't know the card model. But I know that my card supports this signature algorithm ALG_RSA_SHA_512_PKCS1.
- Wed Nov 02, 2016 5:22 am
- Forum: Card Products
- Topic: The pain of using A22CR's RSA function
- Replies: 7
- Views: 15512
Re: The pain of using A22CR's RSA function
I did a test with my java card. The result of using private key to sign is the same with the signature result of using your own ALG_RSA_SHA256_PKCS1 function code. 
- Mon Oct 31, 2016 11:28 pm
- Forum: Questions & Answers
- Topic: Throw CryptoException when signing
- Replies: 12
- Views: 21298
Re: Throw CryptoException when signing
UNKNwYSHSA wrote:Same question.
My colleague gave it to me. I don't know the card model either. It's just a white blank card. Sorry.
- Mon Oct 31, 2016 11:26 pm
- Forum: Questions & Answers
- Topic: Throw CryptoException when signing
- Replies: 12
- Views: 21298
Re: Throw CryptoException when signing
tay00000 wrote:Just curious, which card are you using that will support Signature.ALG_RSA_SHA_512_PKCS1 ?
I am interested in getting one too.
My colleague gave it to me. I don't know the card model either. It's just a white blank card. Sorry.
- Fri Oct 28, 2016 5:12 am
- Forum: Questions & Answers
- Topic: Throw CryptoException when signing
- Replies: 12
- Views: 21298
Re: Throw CryptoException when signing
Thanks for all the help. I got it.
- Fri Oct 28, 2016 3:58 am
- Forum: Questions & Answers
- Topic: Throw CryptoException when signing
- Replies: 12
- Views: 21298
Re: Throw CryptoException when signing
mabel wrote:Tell us the Signature algorithm and filler type you used.
Signature algorithm: ALG_RSA_SHA_512_PKCS1
RSA key length: 512bits
- Thu Oct 27, 2016 11:07 pm
- Forum: Questions & Answers
- Topic: Throw CryptoException when signing
- Replies: 12
- Views: 21298
Throw CryptoException when signing
When I used Signature to sign, it always threw CryptoException, reason value is 5. Does anyone have this experience? How can I solve this issue?
Thanks a lot.
Thanks a lot.