ASN1VE (ASN.1 Viewer / Editor) is a graphical user interface (GUI) tool for analyzing and editing data encoded using any of the ASN.1 encoding rules (BER, DER, CER, PER, U-PER). It provides the capability to assign an ASN.1 schema to binary data to produce multiple views of the data showing all of the assigned type and element names. To see some of these features in action, please visit our feature video.

Examples of some of the message types that can be viewed, created, or edited are:

• PER 3G and 4G ASN.1-based signaling protocol messages such as those used in the NBAP, RANAP, RNSAP, RRC, S1AP, and X2AP protocols.
• OMA Secure User Plane Location (SUPL) messages which are used in many GPS related applications.
• H.323 protocol signalling messages.
• X.509 certificates (*.cer,*.crt)
• Transferred Account Procedure (TAP3) batch files
• Files containing Call Detail Records (CDR's) in various vendor formats

ASN1VE can display a decoded message with or without an ASN.1 definition
as shown in the following screen snapshots:

Hex Data View

XML View

Text View

The basic functionality contained within ASN1VE may be used free without
a license. This incudes viewing the basic structure of BER-encoded data in
tree, hex, and detail views. Advanced functionality requires a license file
be purchased. Advanced features include the following:

• View and edit Packed Encoding Rules (PER) messages
• Associate an ASN.1 schema definition with a binary message
• Edit data fields within a message and create new messages
• Search command to find various items in decoded messages