SmartASN1

Yet another asn1 compiler written in C++. It generates pretty good C++ code and javascript code. The initial purpose was to be able to create a csta protocol analyser. This goal has been reached. Many compilers already provide BER/PER/XER encoding/decoding. That lead me to explore another area and support the following features are supported:

• Decoding BER / Encoding still needs some work.
• Parsing ROSE and generating appropriate c++ code. Checks defined syntax (to make a differents with freely available compilers)
• ASN1 1994 syntax supported
• Automatic tagging
• Uses C++ namespace
• nested and un nested structure are possible.

Language mapping

• C++
• javascript

ASN1 Standards

• X.680 ASN1 Syntax (2008 spec under work)
• X.681 Information Object Specification
• X.682 Constraint Specification (Parsing works find)
• X.683 Parameterization of ASN1 syntax (Parsing supported)

ASN1 Encoding Standards

• X.690 BER decoging / encoding except REAL types. INTEGER only 4 bytes max.
• JSON encoding / decoding underwork
• X.696 OER encoding rules planned

List of parsed syntaxes

• H323
• megago
• H248
• TAP
• CSTA phase 2 and CSTA phase 3
• RRC
• ACSE-1
• CMIP-1
• PKIX-88