Crate features / spki
Feature flags · spki 0.8.1 · from crates.io 2026-10-24
spki features: what each one does, and the line to copy
Short answerspki 0.8.1 has 6 features. Nothing is on by default: turn on what you use. It needs Rust 1.85 or newer.
Pick features
Every feature
| Feature | In default | Turns on |
|---|---|---|
alloc | base64ct?/alloc, der/alloc | |
arbitrary | std, dep:arbitrary, der/arbitrary | |
base64 | dep:base64ct | |
fingerprint | digest, sha2 | |
pem | alloc, der/pem | |
std | der/std, alloc |
dep:x turns on the optional dependency x; x/y turns on feature y of dependency x (with ?, only if x is already on).
MSRV history
The minimum Rust version spki declares (rust-version), and the release that changed it:
- 0.5.4 (2022-01-05): Rust 1.56
- 0.6.0-pre.0 (2022-02-04): Rust 1.57
- 0.7.0 (2023-02-27): Rust 1.65
- 0.8.0-rc.0 (2024-07-26): Rust 1.72
- 0.8.0-rc.1 (2024-10-08): Rust 1.81
- 0.8.0-rc.2 (2025-05-30): Rust 1.85
Stuck on an older compiler? Pin the last version that supports it, for example cargo update -p spki --precise <version>, or use resolver 3, which picks compatible versions for you.
More on spki
Real downloads, dependents and alternatives: spki crate data (1.3M real downloads a day, 198 dependents).
docs.rs feature list · crates.io · license Apache-2.0 OR MIT · edition 2024
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