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import { decode as decodeBase64URL } from '../runtime/base64url.ts'import { fromSPKI, fromPKCS8, fromX509 } from '../runtime/asn1.ts'import asKeyObject from '../runtime/jwk_to_key.ts'
import { JOSENotSupported } from '../util/errors.ts'import isObject from '../lib/is_object.ts'import type { JWK, KeyLike } from '../types.d.ts'
export interface PEMImportOptions {  /**   * (Only effective in Web Crypto API runtimes) The value to use as   * {@link https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/importKey SubtleCrypto.importKey()}   * `extractable` argument. Default is false.   */  extractable?: boolean}
/** * Imports a PEM-encoded SPKI string as a runtime-specific public key representation (KeyObject or * CryptoKey). * * Note: The OID id-RSASSA-PSS (1.2.840.113549.1.1.10) is not supported in * {@link https://w3c.github.io/webcrypto/ Web Cryptography API}, use the OID rsaEncryption * (1.2.840.113549.1.1.1) instead for all RSA algorithms. * * @param spki PEM-encoded SPKI string * @param alg (Only effective in Web Crypto API runtimes) JSON Web Algorithm identifier to be used *   with the imported key, its presence is only enforced in Web Crypto API runtimes. See *   {@link https://github.com/panva/jose/issues/210 Algorithm Key Requirements}. */export async function importSPKI<KeyLikeType extends KeyLike = KeyLike>(  spki: string,  alg: string,  options?: PEMImportOptions,): Promise<KeyLikeType> {  if (typeof spki !== 'string' || spki.indexOf('-----BEGIN PUBLIC KEY-----') !== 0) {    throw new TypeError('"spki" must be SPKI formatted string')  }  // @ts-ignore  return fromSPKI(spki, alg, options)}
/** * Imports the SPKI from an X.509 string certificate as a runtime-specific public key representation * (KeyObject or CryptoKey). * * Note: The OID id-RSASSA-PSS (1.2.840.113549.1.1.10) is not supported in * {@link https://w3c.github.io/webcrypto/ Web Cryptography API}, use the OID rsaEncryption * (1.2.840.113549.1.1.1) instead for all RSA algorithms. * * @param x509 X.509 certificate string * @param alg (Only effective in Web Crypto API runtimes) JSON Web Algorithm identifier to be used *   with the imported key, its presence is only enforced in Web Crypto API runtimes. See *   {@link https://github.com/panva/jose/issues/210 Algorithm Key Requirements}. */export async function importX509<KeyLikeType extends KeyLike = KeyLike>(  x509: string,  alg: string,  options?: PEMImportOptions,): Promise<KeyLikeType> {  if (typeof x509 !== 'string' || x509.indexOf('-----BEGIN CERTIFICATE-----') !== 0) {    throw new TypeError('"x509" must be X.509 formatted string')  }  // @ts-ignore  return fromX509(x509, alg, options)}
/** * Imports a PEM-encoded PKCS#8 string as a runtime-specific private key representation (KeyObject * or CryptoKey). * * Note: The OID id-RSASSA-PSS (1.2.840.113549.1.1.10) is not supported in * {@link https://w3c.github.io/webcrypto/ Web Cryptography API}, use the OID rsaEncryption * (1.2.840.113549.1.1.1) instead for all RSA algorithms. * * @param pkcs8 PEM-encoded PKCS#8 string * @param alg (Only effective in Web Crypto API runtimes) JSON Web Algorithm identifier to be used *   with the imported key, its presence is only enforced in Web Crypto API runtimes. See *   {@link https://github.com/panva/jose/issues/210 Algorithm Key Requirements}. */export async function importPKCS8<KeyLikeType extends KeyLike = KeyLike>(  pkcs8: string,  alg: string,  options?: PEMImportOptions,): Promise<KeyLikeType> {  if (typeof pkcs8 !== 'string' || pkcs8.indexOf('-----BEGIN PRIVATE KEY-----') !== 0) {    throw new TypeError('"pkcs8" must be PKCS#8 formatted string')  }  // @ts-ignore  return fromPKCS8(pkcs8, alg, options)}
/** * Imports a JWK to a runtime-specific key representation (KeyLike). Either the JWK "alg" * (Algorithm) Parameter, or the optional "alg" argument, must be present. * * Note: When the runtime is using {@link https://w3c.github.io/webcrypto/ Web Cryptography API} the * jwk parameters "use", "key_ops", and "ext" are also used in the resulting `CryptoKey`. * * @param jwk JSON Web Key. * @param alg (Only effective in Web Crypto API runtimes) JSON Web Algorithm identifier to be used *   with the imported key. Default is the "alg" property on the JWK, its presence is only enforced *   in Web Crypto API runtimes. See *   {@link https://github.com/panva/jose/issues/210 Algorithm Key Requirements}. */export async function importJWK<KeyLikeType extends KeyLike = KeyLike>(  jwk: JWK,  alg?: string,): Promise<KeyLikeType | Uint8Array> {  if (!isObject(jwk)) {    throw new TypeError('JWK must be an object')  }
  alg ||= jwk.alg
  switch (jwk.kty) {    case 'oct':      if (typeof jwk.k !== 'string' || !jwk.k) {        throw new TypeError('missing "k" (Key Value) Parameter value')      }
      return decodeBase64URL(jwk.k)    case 'RSA':      if (jwk.oth !== undefined) {        throw new JOSENotSupported(          'RSA JWK "oth" (Other Primes Info) Parameter value is not supported',        )      }    case 'EC':    case 'OKP':      // @ts-ignore      return asKeyObject({ ...jwk, alg })    default:      throw new JOSENotSupported('Unsupported "kty" (Key Type) Parameter value')  }}