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I work on practical NDA-free software to work with JavaCard and GlobalPlatform smart cards with Java, JavaScript, Android and on the web, publishing things under (L)GPL and MIT licenses.

GlobalPlatformPro and ant-javacard are among the most-used open source JavaCard developer utilities according to a study.

Recently GlobalPlatformPro received a small recognition from Google Open Source as a Peer Bonus!

Historically Iโ€™ve worked on software to make national eID cards like Estonian eID work on the web and on non-windows platforms, like writing Linux/macOS drivers for Estonian eID card and maintaining @OpenSC or creating @web-eid to ease user experience on the desktop.

My focus for 2024 is FIDO and NFC, and a novel key management device called BitPebble

Your sponsorship will allow me to do this more!

(Bitcoin accepted)

@martinpaljak

Will quit the carpentry lessons and continue with software.

Current sponsors 2

Private Sponsor
@Toporin

Past sponsors 6

Private Sponsor
@xavo95
@jo-bitsch
@huckym
@0xRake
Private Sponsor

Featured work

  1. martinpaljak/GlobalPlatformPro

    ๐ŸŒ ๐Ÿ” Manage applets and keys on JavaCard-s like a pro (via command line or from your Java project)

    Java 645
  2. martinpaljak/ant-javacard

    Easy to use Ant task for building JavaCard applets (2.1.1 to 3.2.0)

    Java 190
  3. martinpaljak/apdu4j

    Java code for APDU level smart cards: javax.smartcardio, PC/SC and remote JSON

    Java 111
  4. martinpaljak/cdoc4j

    Java library for handling CDOC 1.0/1.1/2.0 files with AES-256 GCM and RSA or ECC

    Java 3
  5. martinpaljak/EstEID

    Estonian eID tools and libraries in Java

    Java 19

40% towards 5 monthly sponsors goal

@Toporin

Toporin and 1 other sponsor this goal

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$ one time

A Public Sponsor achievement will be added to your profile.

$50 one time

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โœ‰๏ธ You just received a lifelong single user license for one of my tools of your choosing.

I will send you a postcard with a confirmation and "license key" if you provide an address.

$500 one time

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๐Ÿง™ Magic! MagicNFC! You'll get a developer sample of a modular, configurable JavaCard applet kit with support for NDEF, FIDO and other protocols. No need for software, just a modern mobile phone.

Get access to the private repository via the monthly tier

$1,000 one time

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๐Ÿ‘จโ€๐Ÿ’ป I will work a full day (8 hours) with you and your project, questions or issues.

$5,000 one time

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๐Ÿ‘”Have a business project that deals with JavaCard, GlobalPlatform, NFC, FIDO or similar? Lets talk!