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sspi

v0.21.0 Growing

A Rust implementation of the Security Support Provider Interface (SSPI) API

MIT OR Apache-2.0 Edition 2024 MSRV 1.89
#windows#auth#ntlm#sspi#kerberos

Quick Verdict

  • Actively maintained (updated 20d ago)
  • !Pre-1.0: API may have breaking changes
  • Team maintained (4 owners)
  • !Heavy dependency tree (70 direct deps)
  • Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
922.5K
Dependents
91
Releases
62
Size
286KB

Deep Insights

📈
Strong growth momentum

278.7K downloads in the last 30 days (9.3K/day), up 475% from the previous period.

👤
Prolific maintainer

The primary maintainer publishes 53 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

🔬
Pre-1.0 for over a year

Despite being 6+ years old, sspi hasn't reached 1.0 yet. Expect potential API changes between versions.

📦
Heavy dependency tree

70 direct dependencies. Consider the impact on compile times and supply chain complexity.

🌟
Used by top crates

Notable dependents include ldap3, ironrdp, ironrdp-connector, ironrdp-tokio, ldap3_proto. When high-quality crates choose sspi, it's a strong quality signal.

Health Breakdown

Maintenance 18/25

Recency, release consistency, active ratio

Quality 11/25

Yanked ratio, deps, size, maturity, features

Community 13/20

Reverse deps, ownership, ecosystem

Popularity 7/15

Downloads, momentum, growth trend

Documentation 12/15

Docs, repo, license, metadata

Download Trend

Daily downloads · last 90 days
4K/day avg+209%
05K10K15K20K25K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v0.18.7
96%
v0.19.2
1%
v0.20.0
1%
v0.20.1
1%
v0.18.6
1%

Release Timeline

10 releasessince 2026
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Feature Flags

default =["aws-lc-rs"]

ringscardtssspaws-lc-rs*__test-datadns_resolver__rustls-usednetwork_client__install-crypto-provider

README

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Maintainers

Dependencies
70
direct dependencies
Dependents
91
crates depend on sspi

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