net/base/openssl_private_key_store_android.cc

   1 // Copyright (c) 2012 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/openssl_private_key_store.h"
   6
   7 #include <openssl/evp.h>
   8 #include <openssl/mem.h>
   9 #include <openssl/x509.h>
  10
  11 #include "base/logging.h"
  12 #include "base/memory/singleton.h"
  13 #include "crypto/openssl_util.h"
  14 #include "net/android/network_library.h"
  15 #include "net/ssl/scoped_openssl_types.h"
  16
  17 namespace net {
  18
  19 bool OpenSSLPrivateKeyStore::StoreKeyPair(const GURL& url,
  20                                           EVP_PKEY* pkey) {
  21   // Always clear openssl errors on exit.
  22   crypto::OpenSSLErrStackTracer err_trace(FROM_HERE);
  23
  24   // Important: Do not use i2d_PublicKey() here, which returns data in
  25   // PKCS#1 format, use i2d_PUBKEY() which returns it as DER-encoded
  26   // SubjectPublicKeyInfo (X.509), as expected by the platform.
  27   unsigned char* public_key = NULL;
  28   int public_len = i2d_PUBKEY(pkey, &public_key);
  29
  30   // Important: Do not use i2d_PrivateKey() here, it returns data
  31   // in a format that is incompatible with what the platform expects.
  32   unsigned char* private_key = NULL;
  33   int private_len = 0;
  34   ScopedPKCS8_PRIV_KEY_INFO pkcs8(EVP_PKEY2PKCS8(pkey));
  35   if (pkcs8)
  36     private_len = i2d_PKCS8_PRIV_KEY_INFO(pkcs8.get(), &private_key);
  37   bool ret = false;
  38   if (public_len > 0 && private_len > 0) {
  39     ret = android::StoreKeyPair(
  40         static_cast<const uint8_t*>(public_key), public_len,
  41         static_cast<const uint8_t*>(private_key), private_len);
  42   }
  43   LOG_IF(ERROR, !ret) << "StoreKeyPair failed. pub len = " << public_len
  44                       << " priv len = " << private_len;
  45   OPENSSL_free(public_key);
  46   OPENSSL_free(private_key);
  47   return ret;
  48 }
  49
  50 }  // namespace net