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It's\nused by [Rustls](https://github.com/rustls/rustls) to handle certificate-related\ntasks required for implementing TLS clients and servers.\n\nwebpki is written in [Rust](https://www.rust-lang.org/). It does not\nprovide any built-in cryptography providers, but was written to interoperate\nwith the [rustls-aws-lc-rs](https://crates.io/crates/rustls-aws-lc-rs) and\n[rustls-ring](https://crates.io/crates/rustls-ring) crates, or a custom\nimplementation of the rustls\n[`CryptoProvider`](https://docs.rs/rustls/0.24.0-dev.0/rustls/crypto/struct.CryptoProvider.html)\nstruct backed by your cryptography library of choice.\n\nThis is a fork of the [original webpki project](https://github.com/briansmith/webpki)\nwhich adds a number of features required by the rustls project.  This fork is\nreleased as the `rustls-webpki` crate, with versions starting 0.100.0 so as to\nnot confusingly overlap with `webpki` versions.\n\n\nFeatures\n===============\n\n* Representing trust anchors - webpki requires the caller to bootstrap trust by \n  explicitly specifying a set of trust anchors using the `TrustAnchor` type.\n\n* Parsing certificates - webpki can convert from the raw encoded form of\n  a certificate into something that can be used for making trust decisions.\n\n* Path building - webpki can determine if a certificate for an end entity like\n  a website or client identity was issued by a trust anchor, or a series of\n  intermediate certificates the trust anchor has endorsed.\n\n* Name/usage validation - webpki can determine if a certificate is valid for\n  a given DNS name or IP address by considering the allowed usage of the\n  certificate and additional constraints.\n\n\nLimitations\n===============\n\nwebpki offers a minimal feature set tailored to the needs of Rustls. Notably it\ndoes not offer:\n\n* Support for self-signed certificates\n* Certificate or keypair generation\n* Access to arbitrary certificate extensions\n* Parsing/representation of certificate subjects, or human-friendly display of\n  these fields\n\nFor these tasks you may prefer using webpki in combination with libraries like\n[x509-parser](https://github.com/rusticata/x509-parser) and\n[rcgen](https://github.com/est31/rcgen).\n\n\nChangelog\n=========\n\nRelease history can be found [on GitHub](https://github.com/rustls/webpki/releases).\n\n\nDemo\n====\n\nSee https://github.com/rustls/rustls#example-code for an example of using\nwebpki.\n\n\nLicense\n=======\n\nSee [LICENSE](LICENSE). This project happily accepts pull requests without any\nformal copyright/contributor license agreement.\n\n\nBug Reporting\n=============\n\nPlease refer to the [SECURITY](SECURITY.md) policy for security issues. All\nother bugs should be reported as [GitHub issues](https://github.com/rustls/webpki/issues/new).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Frustls%2Fwebpki","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Frustls%2Fwebpki","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Frustls%2Fwebpki/lists"}