```bash npm i @hazae41/x509 ``` [**Node Package 📦**](https://www.npmjs.com/package/@hazae41/x509) ## Features ### Current features - 100% TypeScript and ESM - Zero-copy reading and writing - No external dependency - No cryptography - Rust-like patterns - Zero-copy PEM <=> DER <=> ASN1 <=> X509 reading and writing - X.509 certificates (v3) - X.501 encoding and decoding ### [Upcoming features](https://github.com/sponsors/hazae41) - X.509 extensions (v3) ## Usage ### Reading DER ```typescript import { Certificate, X509 } from "@hazae41/x509"; const bytes = await readFile("./cert.der") const cert = X509.tryReadFromBytes(bytes, Certificate).unwrap() ``` ### Reading PEM ```typescript import { PEM, Certificate, X509 } from "@hazae41/x509"; const bytes = PEM.tryParse(await readFile("./cert.pem", "utf8")).unwrap() const cert = X509.tryReadFromBytes(bytes, Certificate).unwrap() ```