Thoughts on the current state of ASN.1 and XML technologies.

New ASN1VE and ASN2TXT releases for 2019


New major releases of our ASN1VE and ASN2TXT products are now available. The primary new feature added to each is support for the new ASN.1 JSON Encoding Rules (JER) as documented in the ITU-T X.697 standard that was made public last fall. ASN1VE now has a JSON tab that shows the JSON encoding for any binary message type. In addition, the Import and Export options under the File pulldown menu allow export to, or importing from JSON. ASN2TXT support translations in both directions (binary -> JSON and JSON -> binary).

Other improvements to ASN1VE included the following:

  • Added the capability to display and edit the contents of OCTET or BIT STRING types with contents constraints (CONTAINING constructs) using the inner contained type.
  • Added level to the tag search dialog to make it possible to search for tags at a given level instead of at any level.
  • Improved PDU tag matching for BER/DER messages with UNIVERSAL tags (common in ASN.1 used in security specifications). This makes it easier to find the PDU type of a message if it is not known.
  • Changed the Windows and Mac installation procedures to install the executable files in the Program Files area and sample programs in the User area. On Windows, sample programs are now copied to the user’s Documents directory under the ASN1VE folder.

For ASN2TXT, the capability do tag path filtering was another new feature that was added. This makes it possible to find and output elements in textual form if the full ASN.1 specification is not available. This capability was further described in this blog post.

Further details can be found in the release notes:

ASN1VE Release Notes
ASN2TXT Release Notes

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