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Search found 138 matches

by tay00000
Fri Mar 15, 2019 7:48 am
Forum: Card Products
Topic: C++ programmable smartcard
Replies: 1
Views: 371

Re: C++ programmable smartcard

C based programmable smart cards are highly limited as 95% of the cards available in the industry is made up of JavaCard. You are better off using JavaCard as JavaCard is the industry standard for smart cards and almost every specification for card systems these days seems to revolve around JavaCard...
by tay00000
Tue Mar 12, 2019 11:20 pm
Forum: Questions & Answers
Topic: JC 3.1
Replies: 2
Views: 160

Re: JC 3.1

Table - New Features in Java Card API Specification New Feature...........|.....Description ------------------------------------------------------------------- AES ciphering modes.....................Added support for AES-CFB mode for stream ciphering and AES-XTS mode for secure storage. -----------...
by tay00000
Tue Mar 12, 2019 11:06 pm
Forum: Questions & Answers
Topic: JC 3.1
Replies: 2
Views: 160

JC 3.1

Oracle has recently released JavaCard version 3.1.

JC 3.1 Main Website: https://docs.oracle.com/en/java/javacard/3.1/index.html

JC 3.1 API: https://docs.oracle.com/en/java/javacar ... index.html

Enjoy :D !!!
by tay00000
Thu Feb 07, 2019 11:14 am
Forum: Questions & Answers
Topic: SAM Card Decompile
Replies: 1
Views: 240

Re: SAM Card Decompile

If the SAM card already contains an applet, you will NOT be able to extract the applet codes and data from the SAM card. It is very insecure to allow extraction of code from a SAM/SIM/Smart card so this option is definitely not available at all. The SAM card's purpose is to prevent cloning so the an...
by tay00000
Tue Jan 29, 2019 6:31 am
Forum: Algorithm School
Topic: Is there a good way to implement an AES-CMAC encryption on Java Cards?
Replies: 4
Views: 467

Re: Is there a good way to implement an AES-CMAC encryption on Java Cards?

Signature.ALG_AES_CMAC_128 is only available from JC 3.0.5 and up.

If you want to implement it yourself, please look at this old forum thread which contains one of our member's source code (https://javacardos.com/javacardforum/vi ... php?t=1114).
by tay00000
Tue Jan 29, 2019 6:16 am
Forum: Applets Development Guide
Topic: Combine two byte array and encrypt them togethor
Replies: 2
Views: 1074

Re: Combine two byte array and encrypt them togethor

Just adding additional points which @owlstead has done a good job in pointing. Here's a couple of extra problems I noticed in the OP's source code. byte [] buffer = new byte [32]; buffer = apdu.getBuffer(); Do you know that by doing that, you will create a persistent memory object with a 32 byte byt...
by tay00000
Tue Jan 22, 2019 7:52 am
Forum: Shopping FAQ
Topic: Feitian JuBiter Blade
Replies: 3
Views: 651

Re: Feitian JuBiter Blade

Is there any programming API to create applets for the JuBiter card ?
by tay00000
Sat Jan 05, 2019 8:42 pm
Forum: Shopping FAQ
Topic: Stickers format for JC30M48CR
Replies: 2
Views: 726

Re: Stickers format for JC30M48CR

Was the sticker version of JC30M48CR successfully implemented ?

I am curious if this could be done successfully ?
by tay00000
Mon Dec 31, 2018 8:42 am
Forum: Shopping FAQ
Topic: the bitcoin coin wallet
Replies: 2
Views: 611

Re: the bitcoin coin wallet

JavaCardOS does not sell Bitcoin Wallet however the smart cards sold by JavaCardOS can be installed with a Bitcoin Application to turn it into a smart card Bitcoin Hardware Wallet.
by tay00000
Sun Dec 23, 2018 4:57 am
Forum: Questions & Answers
Topic: RSA 4096
Replies: 2
Views: 411

Re: RSA 4096

Look at the J3H145 card.

You need to ask @JavaCardOS to enable 4096 bits RSA by the way.
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