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Search found 147 matches

by tay00000
Tue Oct 23, 2018 11:22 am
Forum: Card Products
Topic: can we connect to a printer
Replies: 2
Views: 3773

Re: can we connect to a printer

What printer are you referring to ?

Can you please clarify what you are asking as I do not understand your intentions.
by tay00000
Tue Oct 23, 2018 11:20 am
Forum: Applets Development Guide
Topic: AES
Replies: 3
Views: 3038

Re: AES

Which card are you using ?
by tay00000
Tue Oct 23, 2018 11:17 am
Forum: Questions & Answers
Topic: Searching for java card that supports BIP 0039, BIP0042, ed25519
Replies: 1
Views: 1492

Re: Searching for java card that supports BIP 0039, BIP0042, ed25519

Sorry, you will not be able to find X25519 capable algorithms on any JavaCard. The simple reason is JavaCards up till now are struggling hard to get NIST Fp and Fm curves with some cards having some NIST curve support and others preferring other NIST curve support depending on vendor. X25519 being n...
by tay00000
Tue Oct 23, 2018 10:49 am
Forum: Open Source Applets
Topic: Smart Card Fido U2F Applet
Replies: 6
Views: 12353

Re: Smart Card Fido U2F Applet

Probably some side knowledge in case people are wondering. I was reading something regarding how Windows handles USB drivers and it doesn't allow HID, CCID and mass storage access via the default Windows driver and thus Zadig must be used to swap out for a USB driver that allows WebUSB. So no go for...
by tay00000
Sat Oct 20, 2018 8:09 am
Forum: Open Source Applets
Topic: Smart Card Fido U2F Applet
Replies: 6
Views: 12353

Re: Smart Card Fido U2F Applet

I know that this is a rather old topic so probably I might be missing something. I am recently deciding to test out U2F applet by @Javacardos and also the cards bought from @Javacardos. Applet installed on card with no problems. When I insert card into card reader and visited Yubico's U2F demo page ...
by tay00000
Tue Aug 22, 2017 10:00 pm
Forum: Open Source Applets
Topic: Smart Card Gids Applet
Replies: 12
Views: 12209

Re: Smart Card Gids Applet

OpenSC is a framework and requires developers to write plugins to submit to OpenSC to include into their toolkits and libraries. From OpenSC's Github source codes, it seems that GIDS support over PKCS15 is available. Which flavour of GIDS applet are you using ? Which card are you using ? Do provide ...
by tay00000
Mon Aug 07, 2017 9:44 pm
Forum: Applets Development Guide
Topic: Random number generator
Replies: 2
Views: 2215

Re: Random number generator

Your attempt to call ALG_TRNG is technically correct in the sense that is JC 3.0.5 specification API. The thing is if your card does not support JC 3.0.5, you are better off using ALG_SECURE_RANDOM and ALG_PSEUDO_RANDOM which is in the JC 2.2.X version of the API. Also note that ALG_SECURE_RANDOM an...
by tay00000
Tue Aug 01, 2017 8:59 pm
Forum: Questions & Answers
Topic: A client application
Replies: 3
Views: 1876

Re: A client application

A short list of host machine (PC computer/server) of possibilities to choose from: ⋅ com.sun.javacard.apduio (Java with Sun package which maybe subjected to depreciation) ⋅ javax.smartcardio (Java - the defacto API) ⋅ OCF (Java) ⋅ jnasmartcardio (Java - altern...
by tay00000
Tue Jul 18, 2017 7:54 am
Forum: Questions & Answers
Topic: CLA byte of the select APDU command
Replies: 2
Views: 1494

Re: CLA byte of the select APDU command

Which card are you using when you do CLA = (byte) 0xBC ?

I have used CLA = (byte) 0xBC and CLA = (byte) 0xB0 and have never hit any problems on NXP JCOP, Feitian cards or any other cards for now.
by tay00000
Fri Jul 14, 2017 9:13 pm
Forum: Card Products
Topic: Enhancing security and authenticity on JavaCardOS offered products
Replies: 0
Views: 1918

Enhancing security and authenticity on JavaCardOS offered products

I would like to recommend a value-add for all JavaCard manufacturers to consider implementation on all it's cards to enhance security and authenticity of applets deployed on the cards. Attesting to whether a symmetric or asymmetric key is generated on a particular card is difficult as there is no me...
JavaCard OS : Disclaimer