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Things to be done

Big things to tackle, anyone interested is welcome to fork pyasn1, work on it and come up with a PR!

New codecs

  • PER
  • OER
  • XER
  • LWER
  • JSON (alinged with existing experimental schemas)

Lazy codecs

Implement a thin layer over base types to cache pieces of substrate being decoded till the very moment of ASN.1 object access in the parse tree.

Codecs generator interface

For indefinite length or chunked encoding mode, make codecs iterable producing/consuming substrate/objects.

ASN.1 schema compiler

Ideally, the compiler should parse modern schema files and be designed to emit code for arbitrary languages (including SQL).

Base types

Implement X.680 constructs, including information schema.

Examples

Add examples, including advanced/obscure use cases.

Documentation

Document more API, add notes and example snippets.

More fresh modules

Compile and ship more Pythonized ASN.1 modules for various ASN.1-based protocols (e.g. Kerberos etc). Refresh outdated modules in pyasn1-packages.

Minor, housekeeping things

  • more PEP8'ing at places

  • consider simplifying repr(), otherwise it tend to be too hard to grasp

  • Specialize ASN.1 character and useful types

  • ber.decoder:

    • suspend codec on underrun error ?
    • present subtypes ?
    • component presence check wont work at innertypeconst
    • type vs value, defaultValue

  • ber.encoder:

    • Asn1Item.clone() / shallowcopy issue
    • large length encoder?
    • lookup type by tag first to allow custom codecs for non-base types

  • type.useful:

    • may need to implement prettyIn/Out

  • type.char:

    • may need to implement constraints

  • type.namedtypes

    • type vs tagset name convention

  • how untagged TagSet should be initialized?

  • type and codecs for Real needs refactoring