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Rasn Alternatives
Similar projects and alternatives to rasn
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SaaSHub
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tokio
A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ...
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miller
Miller is like awk, sed, cut, join, and sort for name-indexed data such as CSV, TSV, and tabular JSON
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Kaitai Struct
Kaitai Struct: declarative language to generate binary data parsers in C++ / C# / Go / Java / JavaScript / Lua / Nim / Perl / PHP / Python / Ruby / Rust
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binary-parsing
A list of generic tools for parsing binary data structures, such as file formats, network protocols or bitstreams
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better rasn alternative or higher similarity.
rasn discussion
rasn reviews and mentions
Posts with mentions or reviews of rasn.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-04-18.
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A New ASN.1 API for Python
There is also rasn library for Rust that now supports most of the codecs (BER/CER/DER/PER/APER/OER/COER/JER/XER).
Disclaimer: I have contributed a lot recently. OER codec (modern flair of ASN.1) is extremely optimized (almost as much as it can be with safe Rust and without CPU specific stuff). I am still working with benchmarking results, which I plan to share in close future. But it starts to be the fastest there is in open-source world. It is also faster than Google's Protobuf libraries or any Protobuf library in Rust. (naive comparison, no reflection support). Hopefully other codecs could be optimized too.
[1] https://github.com/librasn/rasn
- Rasn 0.8: Now with support for UPER and APER
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An Open Source Rust SNMP Simulator
The UdpFramed constructor must be supplied by an instance of a codec object, which implements the Encoder and Decoder Tokio crate traits. It’s used on top of the socket to handle frames. SnmpCodec is used to decode the received UDP socket data into a stream of SNMP messages, and to encode the SNMP messages into ASN.1 encoded UDP socket data. The SnmpCodec is a wrapper of rasn ASN.1 codec framework, which implements the Encoder and Decoder traits to encode and decode UDP frames. The decoder and encoder implementations leverage the rasn ASN.1 codec framework.
- Announcing Rasn 0.5: New CMS, Kerberos, OCSP, S/MIME crates, and funding announcement
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Fq: Jq for Binary Formats
Shameless plug, but you may be interested in my library (which is MIT/Apache-2.0) that offers decoding from BER/DER/CER all from a single model in code, there's no UPER/APER support at the moment, but it's coming in the next few months. :)
https://github.com/XAMPPRocky/rasn
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Rasn 0.4 — New Compile-Time Validation, SET and ANY support, new LDAP and PKIX crates, and more!
Hello everyone, I'm proud to announce the 0.4.0 of rasn! rasn is a #[no_std] codec framework for the ASN.1 data model and encoding rules. Allowing you to safely and easily parse ASN.1 data formats such as BER, CER, and DER in safe Rust. This release focused on rounding out the support for data types needed for more complicated specifications such as PKIX. If anyone has any questions about this release or rasn feel free to ask me here, or on the GitHub Discussions board.
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ASN.1 & Serde: Which crate does the community recommend?
For ASN.1 I generally recommend rasn, which does not use serde since that is a poor fit for ASN.1. It went through an in-depth design phase and is currently the most complete and easy-to-use ASN.1 crate I'm aware of.
- Comparison of way too many Rust ASN.1 DER libraries
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A note from our sponsor - SaaSHub
www.saashub.com | 12 Jun 2026
Stats
Basic rasn repo stats
9
367
8.3
about 1 month ago
librasn/rasn is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
The primary programming language of rasn is Rust.
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