I saw one excellent tool which is free and available in c(source file) and for GUI purpose converted tool provided by Gemini Security Solutions at
http://geminisecurity.com/features-downloads/tools/guidumpasn
The actual tool is generated by Peter Gutmann and the source code available at his page(site)
http://www.cs.auckland.ac.nz/~pgut001/ .
In his quotes " an ASN.1 object dump program that will dump data encoded using any of the ASN.1 encoding rules in a variety of user-specified formats ".
And it is clear that this is having no limitations to use , from Gemini Security Solutions ,they quote as " This software is free for any use; just don’t claim that you wrote it" . I like it.
http://geminisecurity.com/features-downloads/tools/guidumpasn
The actual tool is generated by Peter Gutmann and the source code available at his page(site)
http://www.cs.auckland.ac.nz/~pgut001/ .
In his quotes " an ASN.1 object dump program that will dump data encoded using any of the ASN.1 encoding rules in a variety of user-specified formats ".
And it is clear that this is having no limitations to use , from Gemini Security Solutions ,they quote as " This software is free for any use; just don’t claim that you wrote it" . I like it.