1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "net/base/keygen_handler.h"
6
7#include <openssl/ssl.h>
8
9#include "base/logging.h"
10#include "base/memory/scoped_ptr.h"
11#include "crypto/openssl_util.h"
12#include "crypto/rsa_private_key.h"
13#include "net/base/openssl_private_key_store.h"
14
15namespace net {
16
17std::string KeygenHandler::GenKeyAndSignChallenge() {
18  scoped_ptr<crypto::RSAPrivateKey> key(
19      crypto::RSAPrivateKey::Create(key_size_in_bits_));
20  EVP_PKEY* pkey = key->key();
21
22  if (stores_key_)
23    OpenSSLPrivateKeyStore::GetInstance()->StorePrivateKey(url_, pkey);
24
25  crypto::ScopedOpenSSL<NETSCAPE_SPKI, NETSCAPE_SPKI_free> spki(
26       NETSCAPE_SPKI_new());
27  ASN1_STRING_set(spki.get()->spkac->challenge,
28                  challenge_.data(), challenge_.size());
29  NETSCAPE_SPKI_set_pubkey(spki.get(), pkey);
30  // Using MD5 as this is what is required in HTML5, even though the SPKI
31  // structure does allow the use of a SHA-1 signature.
32  NETSCAPE_SPKI_sign(spki.get(), pkey, EVP_md5());
33  char* spkistr = NETSCAPE_SPKI_b64_encode(spki.get());
34
35  std::string result(spkistr);
36  OPENSSL_free(spkistr);
37
38  return result;
39}
40
41}  // namespace net
42
43