Provide RSA2048 as per RFC

webrtc/base/opensslidentity.h

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 14 matching lines @@
 namespace rtc {
 
 // OpenSSLKeyPair encapsulates an OpenSSL EVP_PKEY* keypair object,
 // which is reference counted inside the OpenSSL library.
 class OpenSSLKeyPair {
  public:
   explicit OpenSSLKeyPair(EVP_PKEY* pkey) : pkey_(pkey) {
     ASSERT(pkey_ != NULL);
   }
 
-  static OpenSSLKeyPair* Generate(KeyType key_type);
+  static OpenSSLKeyPair* Generate(const KeyParams& key_params);
 
   virtual ~OpenSSLKeyPair();
 
   virtual OpenSSLKeyPair* GetReference();
 
   EVP_PKEY* pkey() const { return pkey_; }
 
  private:
   void AddReference();
 
@@ skipping 47 matching lines @@
   X509* x509_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLCertificate);
 };
 
 // Holds a keypair and certificate together, and a method to generate
 // them consistently.
 class OpenSSLIdentity : public SSLIdentity {
  public:
   static OpenSSLIdentity* Generate(const std::string& common_name,
-                                   KeyType key_type);
+                                   const KeyParams& key_params);
   static OpenSSLIdentity* GenerateForTest(const SSLIdentityParams& params);
   static SSLIdentity* FromPEMStrings(const std::string& private_key,
                                      const std::string& certificate);
   ~OpenSSLIdentity() override;
 
   const OpenSSLCertificate& certificate() const override;
   OpenSSLIdentity* GetReference() const override;
 
   // Configure an SSL context object to use our key and certificate.
   bool ConfigureIdentity(SSL_CTX* ctx);
 
  private:
   OpenSSLIdentity(OpenSSLKeyPair* key_pair, OpenSSLCertificate* certificate);
 
   static OpenSSLIdentity* GenerateInternal(const SSLIdentityParams& params);
 
   scoped_ptr<OpenSSLKeyPair> key_pair_;
   scoped_ptr<OpenSSLCertificate> certificate_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLIdentity);
 };
 
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_OPENSSLIDENTITY_H_