Java library for working with CDOC documents.

This project started with the help of European Regional Development Fund.

• Creation of CDOC documents containing encrypted files
• Decryption of files from CDOC documents

• CDOC 1.0 - AES-128-CBC, only RSA recipients (deprecated)
• CDOC 1.1 - AES-256-GCM, RSA and EC recipients (Recommended)

• Java 1.8
• Unlimited Strength Jurisdiction Policy

Take a look at the examples

Using a smart card to decrypt a file while using Java 17 or a later version, an extra JVM argument is required:

--add-exports jdk.crypto.cryptoki/sun.security.pkcs11=ALL-UNNAMED

You can use the library as a dependency from Maven Central

<dependency>
    <groupId>org.open-eid.cdoc4j</groupId>
    <artifactId>cdoc4j</artifactId>
    <version>1.5</version>
</dependency>