'use strict';

const common = require('../common');
if (!common.hasCrypto)
  common.skip('missing crypto');

const assert = require('assert');
const {
  generateKeyPair,
} = require('crypto');
const {
  assertApproximateSize,
  testSignVerify,
  spkiExp,
} = require('../common/crypto');

const { hasOpenSSL3 } = require('../common/crypto');

// Test async DSA key generation.

// BoringSSL does not support DSA key generation.
if (!common.openSSLIsBoringSSL) {
  const privateKeyEncoding = {
    type: 'pkcs8',
    format: 'der'
  };

  generateKeyPair('dsa', {
    modulusLength: hasOpenSSL3 ? 2048 : 512,
    divisorLength: 256,
    publicKeyEncoding: {
      type: 'spki',
      format: 'pem'
    },
    privateKeyEncoding: {
      cipher: 'aes-128-cbc',
      passphrase: 'secret',
      ...privateKeyEncoding
    }
  }, common.mustSucceed((publicKey, privateKeyDER) => {
    assert.strictEqual(typeof publicKey, 'string');
    assert.match(publicKey, spkiExp);
    // The private key is DER-encoded.
    assert(Buffer.isBuffer(privateKeyDER));

    assertApproximateSize(publicKey, hasOpenSSL3 ? 1194 : 440);
    assertApproximateSize(privateKeyDER, hasOpenSSL3 ? 721 : 336);

    // Since the private key is encrypted, signing shouldn't work anymore.
    assert.throws(() => {
      return testSignVerify(publicKey, {
        key: privateKeyDER,
        ...privateKeyEncoding
      });
    }, {
      name: 'TypeError',
      code: 'ERR_MISSING_PASSPHRASE',
      message: 'Passphrase required for encrypted key'
    });

    // Signing should work with the correct password.
    testSignVerify(publicKey, {
      key: privateKeyDER,
      ...privateKeyEncoding,
      passphrase: 'secret'
    });
  }));
}
