Function createJob

lib/internal/crypto/keygen.js:209–382

(mode, type, options)

};

function createJob(mode, type, options) {
  validateString(type, 'type');

  const encoding = new SafeArrayIterator(parseKeyEncoding(type, options));

  if (options !== undefined)
    validateObject(options, 'options');

  switch (type) {
    case 'rsa':
    case 'rsa-pss':
    {
      validateObject(options, 'options');
      let { modulusLength } = options;
      validateUint32(modulusLength, 'options.modulusLength');
      // Coerce -0 to +0.
      modulusLength += 0;

      let { publicExponent } = options;
      if (publicExponent == null) {
        publicExponent = 0x10001;
      } else {
        validateUint32(publicExponent, 'options.publicExponent');
        // Coerce -0 to +0.
        publicExponent += 0;
      }

      if (type === 'rsa') {
        return new RsaKeyPairGenJob(
          mode,
          kKeyVariantRSA_SSA_PKCS1_v1_5,  // Used also for RSA-OAEP
          modulusLength,
          publicExponent,
          ...encoding);
      }

      const { hashAlgorithm, mgf1HashAlgorithm } = options;
      let { saltLength } = options;

      if (saltLength !== undefined) {
        validateInt32(saltLength, 'options.saltLength', 0);
        // Coerce -0 to +0.
        saltLength += 0;
      }
      if (hashAlgorithm !== undefined)
        validateString(hashAlgorithm, 'options.hashAlgorithm');
      if (mgf1HashAlgorithm !== undefined)
        validateString(mgf1HashAlgorithm, 'options.mgf1HashAlgorithm');
      if (options.hash !== undefined) {
        // This API previously accepted a `hash` option that was deprecated
        // and removed. However, in order to make the change more visible, we
        // opted to throw an error if hash is specified rather than removing it
        // entirely.
        throw new ERR_INVALID_ARG_VALUE(
          'options.hash',
          options.hash,
          'is no longer supported',
        );