Apache ASN.1
· The ASN.1 subproject attempts to isolate the ASN.1 libraries and tools
for encoding ASN.1 in BER/DER/CER/PER encodings. The LDAP and X.500
aspects of the directory project impose the need for ASN.1 and BER
codecs. Kerberos requires DER. Rather than implement highly
specific and britle code for these needs we decided to separate out
the APIs and implementations used for dealing with ASN.1 codecs for any
ASN.1 defined protocol.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window asn1-0.3.3.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.