der
v0.8.1 GrowingPure Rust embedded-friendly implementation of the Distinguished Encoding Rules (DER) for Abstract Syntax Notation One (ASN.1) as described in ITU X.690 with full support for heapless `no_std`/`no_alloc` targets
Quick Verdict
- ✓Actively maintained (updated 4d ago)
- !Pre-1.0: API may have breaking changes
- ✓Massive adoption (2.9K crates depend on it)
- ✓Team maintained (2 owners)
- ✓Permissive license (Apache-2.0 OR MIT)
Security
Deep Insights
29.4M downloads in the last 30 days (979.5K/day). Volume is roughly flat compared to the previous period.
2.9K crates depend on der. Strong ecosystem adoption means battle-tested code and long-term stability.
The primary maintainer publishes 220 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.
Despite being 5+ years old, der hasn't reached 1.0 yet. Expect potential API changes between versions.
30% of releases have been yanked. Check version history before pinning.
Notable dependents include spki, pkcs8, crypto-bigint, ecdsa, sec1. When high-quality crates choose der, it's a strong quality signal.
Health Breakdown
Recency, release consistency, active ratio
Yanked ratio, deps, size, maturity, features
Reverse deps, ownership, ecosystem
Downloads, momentum, growth trend
Docs, repo, license, metadata
Download Trend
Top Dependents
Most downloaded crates that depend on der
