asn1_viewer is a command-line ASN.1 viewer. Use it as a replacement for whatever combination of cat and your editor you currently use for viewing ASN1 format files. It is written in Rust and can be installed as a single standalone binary.
ASN1 (Abstract Syntax Notation One):
is a standard interface description language (IDL) for defining data structures that can be serialized and deserialized in a cross-platform way.
It is broadly used in telecommunications and computer networking, and especially in cryptography.
In short: asn1 is a special language for defining structures.
- Visualize asn1 data in terminal. It supports nested structures of any complexity (structure inside the structure, which inside the structure, ...).
- Visualization is interactive:
- The user can to hide/open structure fields.
- Ability to copy field data.
- Read input data from
stdin/file. - Automatically discard x509 certificates labels.
- Automatically recognize raw bytes, base64, and hex-encoded data.
Licensed under either of:
at your option.
cat examples/test.crt | asn1_viewer
or
asn1_viewer --file examples/test.crt
or ASN.1 in base64
asn1_viewer --asn1 MC8wLaEDAgEToiYEJDAiMCCgAwIBEqEZGxdJVC1IRUxQLURDQWRtaW5pc3RyYXRvcg==
or ASN.1 in hex
asn1_viewer --asn1 302f302da103020113a226042430223020a003020112a1191b1749542d48454c502d444341646d696e6973747261746f72
if you see error during compilation like this:
= note: /usr/bin/ld: cannot find -lxcb-shape: No such file or directory /usr/bin/ld: cannot find -lxcb-xfixes: No such file or directory collect2: error: ld returned 1 exit status
To resolve this, you can install the missing libraries using your package manager. Here are the commands depending on your system:
For Debian/Ubuntu:
sudo apt-get install libxcb-shape0-dev libxcb-xfixes0-dev
For Fedora:
sudo dnf install xcb-util-devel libxcb-devel
For Arch Linux:
sudo pacman -S libxcb
After installing these libraries, try building your program again.