rustls-webpki (0.103.10)

Published 2026-03-26 10:35:15 +00:00 by siennathesane

Set up this registry in the Cargo configuration file (for example ~/.cargo/config.toml):

[registry]
default = "gitea"

[registries.gitea]
index = "sparse+" # Sparse index
# index = "" # Git

[net]
git-fetch-with-cli = true

To install the package using Cargo, run the following command:

cargo add rustls-webpki@0.103.10

For more information on the Cargo registry, see the documentation.

Web PKI X.509 Certificate Verification.

webpki is a library that validates Web PKI (TLS/SSL) certificates. It's used by Rustls to handle certificate-related tasks required for implementing TLS clients and servers.

webpki is written in Rust and uses ring for cryptographic operations and low-level parsing.

This is a fork of the original webpki project which adds a number of features required by the rustls project. This fork is released as the rustls-webpki crate, with versions starting 0.100.0 so as to not confusingly overlap with webpki versions.

Features

Representing trust anchors - webpki requires the caller to bootstrap trust by explicitly specifying a set of trust anchors using the TrustAnchor type.
Parsing certificates - webpki can convert from the raw encoded form of a certificate into something that can be used for making trust decisions.
Path building - webpki can determine if a certificate for an end entity like a website or client identity was issued by a trust anchor, or a series of intermediate certificates the trust anchor has endorsed.
Name/usage validation - webpki can determine if a certificate is valid for a given DNS name or IP address by considering the allowed usage of the certificate and additional constraints.

Limitations

webpki offers a minimal feature set tailored to the needs of Rustls. Notably it does not offer:

Support for self-signed certificates
Certificate or keypair generation
Access to arbitrary certificate extensions
Parsing/representation of certificate subjects, or human-friendly display of these fields

For these tasks you may prefer using webpki in combination with libraries like x509-parser and rcgen.

Changelog

Release history can be found on GitHub.

Demo

See https://github.com/rustls/rustls#example-code for an example of using webpki.

License

See LICENSE. This project happily accepts pull requests without any formal copyright/contributor license agreement.

Bug Reporting

Please refer to the SECURITY policy for security issues. All other bugs should be reported as GitHub issues.

ID	Version
aws-lc-rs	^1.14
pki-types	^1.12
ring	^0.17
untrusted	^0.9
base64	^0.22
bencher	^0.1.5
bzip2	^0.6
once_cell	^1.17.2
rcgen	^0.14.2
serde	^1.0
serde_json	^1.0
x509-parser	^0.18.1

Details

Cargo

2026-03-26 10:35:15 +00:00

Repository Site

ISC

83 KiB

Assets (1)

rustls-webpki-0.103.10.crate 83 KiB

Versions (1) View all

0.103.10

2026-03-26