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 "crypto/scoped_openssl_types.h"
14#include "net/base/openssl_private_key_store.h"
15
16namespace net {
17
18std::string KeygenHandler::GenKeyAndSignChallenge() {
19  scoped_ptr<crypto::RSAPrivateKey> key(
20      crypto::RSAPrivateKey::Create(key_size_in_bits_));
21  EVP_PKEY* pkey = key->key();
22
23  if (stores_key_)
24    OpenSSLPrivateKeyStore::StoreKeyPair(url_, pkey);
25
26  crypto::ScopedOpenSSL<NETSCAPE_SPKI, NETSCAPE_SPKI_free>::Type spki(
27      NETSCAPE_SPKI_new());
28  ASN1_STRING_set(spki.get()->spkac->challenge,
29                  challenge_.data(), challenge_.size());
30  NETSCAPE_SPKI_set_pubkey(spki.get(), pkey);
31  // Using MD5 as this is what is required in HTML5, even though the SPKI
32  // structure does allow the use of a SHA-1 signature.
33  NETSCAPE_SPKI_sign(spki.get(), pkey, EVP_md5());
34  char* spkistr = NETSCAPE_SPKI_b64_encode(spki.get());
35
36  std::string result(spkistr);
37  OPENSSL_free(spkistr);
38
39  return result;
40}
41
42}  // namespace net
43
44