$ sudo apt-get update
$ sudo apt-get install dumpasn1 

dumpasn1 is installed in your system.

Make ensure the dumpasn1 package were installed using the commands given below,

$ sudo dpkg-query -l | grep dumpasn1 *

You will get with dumpasn1 package name, version, architecture and description in a table

dumpasn1 package basic information: