Right now I\'m using BinaryNotes to parse ASN.1 files for use in a Java project. It takes an ASN.1 definition and produces Java class(s) that let me manipulate ASN.1 files.
Have you tried Bouncy Castle.
From the site:
Bouncy Castle Crypto APIs for Java consist of the following:
- A lightweight cryptography API.
- A provider for the Java Cryptography Extension and the Java Cryptography Architecture.
- A clean room implementation of the JCE 1.2.1.
- A library for reading and writing encoded ASN.1 objects.
- ...