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ARAM Applet

Build Status Coverage Status

JavaCard implementation of Global Platform Access Rule Application Master (ARA-M) applet according to Secure Element Access Control v1.1 specification.

What is this ?

ARA-M is an application (typically present on a SIM card) which manages access rules that are enforced by an Access Control Enforcer (typically present on Android device). The enforcer makes sure the rules from the ARAM are enforced. An access rule is composed of:

  • an AID
  • a certificate hash (SHA-1 or SHA-256 hash of the client application certificate)
  • a set of rules

The Access Control enforcer will allow/deny a client application (for example an Android app) to send APDU to a SE applet based on these rules

More information : seek-for-android Access Control wiki

Features

Get Data

  • get all
  • get specific REF-DO
  • get refresh tag
  • get next

Store Data

  • store REF-AR-DO
  • delete AID-REF-DO
  • delete REF-DO
  • delete REF-AR-DO
  • update refresh tag

Note

  • store data can be accessed via install for personalization or via raw apdu STORE DATA
  • get data length is coded on 2 bytes max
  • get specific is not compatible with get next
  • rules are not stored as data object but as plain apdu AR-DO
  • format of APDU-AR-DO, NFC-AR-DO is not checked
  • deleting specific rules is not implemented (only aid/hash)

Setup

Prepare the repository

git clone [email protected]:bertrandmartel/aram-applet.git
cd aram-applet
git submodule update --init

Build the applet

To build the applet, a valid combination of JDK and JAVA-card SDK must be used. This applet requires a combination of jc221_kit and jdk-8u421 (jdk1.8.0_421). A convenient way to select the JDK is to set the environment variable JAVA_HOME before calling ./gradlew.

JAVA_HOME=/path/to/your/jdk1.8.0_421/ ./gradlew build

build & install (will delete existing applet before install)

JAVA_HOME=/path/to/your/jdk1.8.0_421/ ./gradlew installJavaCard

Tests

run simulation tests

JAVA_HOME=/path/to/your/jdk1.8.0_421/ ./gradlew test

run tests on smartcard

JAVA_HOME=/path/to/your/jdk1.8.0_421/ ./gradlew test -DtestMode=smartcard

Scripts

Install for personalization

list rules

gp -acr-list

Use GlobalPlatformPro to send store data via the Security Domain with install comand + install for personalization :

add rule

gp -acr-add -acr-rule 01 -app D2760001180002FF49502589C0019B18 -acr-hash 1FA8CC6CE448894C7011E23BCF56DB9BD9097432

delete rule

gp -acr-delete -app D2760001180002FF49502589C0019B18 -acr-hash 1FA8CC6CE448894C7011E23BCF56DB9BD9097432

Raw APDU

list rules

JAVA_HOME=/path/to/your/jdk1.8.0_421/ ./gradlew list

The following task send store data command raw apdu via GlobalPlatformPro (for add & delete) :

add rule

./gradlew store

or

JAVA_HOME=/path/to/your/jdk1.8.0_421/ ./gradlew test --tests fr.bmartel.aram.AramTest.storeDataValid

delete rule

./gradlew delete

or

JAVA_HOME=/path/to/your/jdk1.8.0_421/ ./gradlew test --tests fr.bmartel.aram.AramTest.deleteByAid

License

The MIT License (MIT) Copyright (c) 2017 Bertrand Martel