Skip to main content
Deno 2 is finally here 🎉️
Learn more
Module

x/jose/key/import.ts>importX509

"JSON Web Almost Everything" - JWA, JWS, JWE, JWT, JWK, JWKS for Node.js, Browser, Cloudflare Workers, Deno, Bun, and other Web-interoperable runtimes.
panva/jose
Extremely Popular
Go to Latest
function importX509
import { importX509 } from "https://deno.land/x/jose@v4.11.2/key/import.ts";

Imports the SPKI from an X.509 string certificate as a runtime-specific public key representation (KeyObject or CryptoKey). See Algorithm Key Requirements to learn about key to algorithm requirements and mapping.

Examples

Usage

const algorithm = 'ES256'
const x509 = `-----BEGIN CERTIFICATE-----
MIIBXjCCAQSgAwIBAgIGAXvykuMKMAoGCCqGSM49BAMCMDYxNDAyBgNVBAMMK3Np
QXBNOXpBdk1VaXhXVWVGaGtjZXg1NjJRRzFyQUhXaV96UlFQTVpQaG8wHhcNMjEw
OTE3MDcwNTE3WhcNMjIwNzE0MDcwNTE3WjA2MTQwMgYDVQQDDCtzaUFwTTl6QXZN
VWl4V1VlRmhrY2V4NTYyUUcxckFIV2lfelJRUE1aUGhvMFkwEwYHKoZIzj0CAQYI
KoZIzj0DAQcDQgAE8PbPvCv5D5xBFHEZlBp/q5OEUymq7RIgWIi7tkl9aGSpYE35
UH+kBKDnphJO3odpPZ5gvgKs2nwRWcrDnUjYLDAKBggqhkjOPQQDAgNIADBFAiEA
1yyMTRe66MhEXID9+uVub7woMkNYd0LhSHwKSPMUUTkCIFQGsfm1ecXOpeGOufAh
v+A1QWZMuTWqYt+uh/YSRNDn
-----END CERTIFICATE-----`
const ecPublicKey = await jose.importX509(x509, algorithm)

Parameters

x509: string

X.509 certificate string

alg: string

JSON Web Algorithm identifier to be used with the imported key.

optional
options: PEMImportOptions