FluffyPGPApplet Instructions & Applet Source Code

[JavaCardOS]

This Open source applet implements the GPG Card v 2.0.1 specification without using secure channels or Global Platform for portability.

Support
• 2048 bit RSA keys
• RSA Key import (CRT format)
• Random number generation
• Private DOs

Limitations
• No extended APDU support.
• Supports only 2048 bit CRT RSA keys (1024 is too short and most cards don't support 4096 bits)
• No secure messaging support.
• No support for the cardholder certificate (DO 7F21).
• Readability was favored over code size.
• Will not run on cards with an APDU buffer smaller than 256 + 5 bytes.

For more information about this Applet, please see the following file.
Note:
The Applet has been successfully compiled in JCIDE, and can be directly used after downloading.
You can also get source codes from GitHub or SourceForge (GPL3).

[nobody2015]

In Github,

Card Requirements

Java card version 2.2.2 (2.2.1 might work but it is untested)
2048 bit RSA key support
Global platform 2.1.1 or above to use the loading scripts.

For the version of JavaCard and GlobalPlatform, this applet has these limitations?

[horse dream]

This applet is no particularly limited for JavaCard and GP version.

If your Java Card supported the version of JavaCard and GP versions is lower, At the time of building applet, you can select the lower version of the API and convertor.