Martin from 🇪🇪 Estonia 🇪🇺 here. Every now and then I push code to GitHub, that scratches my own itches (rememberingKerckhoff's principle!).

Most probably you're here because of the "open source javacard software development toolkit" that consists of

• 🌐GlobalPlatformPro
• 🐜ant-javacard

🛜NFC/NDEF and 🔑FIDO/WebAuthn and 🧑‍💻SSH are topics where you can expect developments in 2025.

There are also historical bits and pieces related to generic smart cards (PC/SC, CCID) and crypto with Java/JavaScript/PKCS#11, and Estonian eID and identity (OpenID etc) in general.

When it comes toEstonian eID, most of what I worked on has been continued by others:@OpenSC (open source PKCS#11 and native platform crypto drivers for smart cards),@web-eid (modern WebExtensions based authentication and signing for desktop browsers) and@open-eid (ages ago I pushed Estonia to publish (most of) it's eID client software as open source)

Feel free to 💬book a call if you have any questions or ongoing projects in these domains or tosponsor my open source work!

• February 2025:SSHProvider enables easy access to SSH keys in hardware, from Java.
• October 2024:GlobalPlatformPro has a long-overdue release, with many new features.
• October 2024:ant-javacard v24.10.15 released with minor adjustments for latest JC 3.2.0 SDK v24.1 release
• March 2024:ant-javacard now supports the latest v3.2.0 JavaCard SDK
• August 2023:ant-javacard got a new release after almost 2 years.
• July 2023:"NFC tags for PC-s" got a rewrite and first pretty release. Have a look!
• April 2023:GlobalPlatformProreceiveda small recognition from Google Open Source via aPeer Bonus :) (thx @kt)

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1. GlobalPlatformProGlobalPlatformProPublic

   🌐 🔐 Manage applets and keys on JavaCard-s like a pro

   Java 747 225

2. ant-javacardant-javacardPublic

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

   Java 213 54

3. nfc4pcnfc4pcPublic

   NFC for Personal Computers

   Java 22 1

4. java-ssh-providerjava-ssh-providerPublic

   Access keys in SSH-agent from Java via KeyStore API (WIP)

   Java 4

5. YAFUYAFUPublic

   YAFU - Yet Another FIDO Utility. FIDO2 toolbox in Java for USB/NFC devices.

   Java 38 7

6. apdu4japdu4jPublic

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

   Java 116 50