Add RSAPrivateKey::CreateFromKeypair()

crypto/rsa_private_key_nss.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "crypto/rsa_private_key.h"
 
 #include <cryptohi.h>
 #include <keyhi.h>
 #include <pk11pub.h>
 #include <secmod.h>
@@ skipping 63 matching lines @@
 
 // static
 RSAPrivateKey* RSAPrivateKey::CreateSensitiveFromPrivateKeyInfo(
     const std::vector<uint8>& input) {
   return CreateFromPrivateKeyInfoWithParams(input,
                                             PR_TRUE /* permanent */,
                                             PR_TRUE /* sensitive */);
 }
 
 // static
+RSAPrivateKey* RSAPrivateKey::CreateFromKey(SECKEYPrivateKey* key) {
+  DCHECK(key);
+  if (SECKEY_GetPrivateKeyType(key) != rsaKey)
+    return NULL;
+  RSAPrivateKey* copy = new RSAPrivateKey();
+  copy->key_ = SECKEY_CopyPrivateKey(key);
+  copy->public_key_ = SECKEY_ConvertToPublicKey(key);
+  if (!copy->key_ || !copy->public_key_) {
+    NOTREACHED();
+    delete copy;
+    return NULL;
+  }
+  return copy;
+}
+
+// static
 RSAPrivateKey* RSAPrivateKey::FindFromPublicKeyInfo(
     const std::vector<uint8>& input) {
   EnsureNSSInit();
 
   scoped_ptr<RSAPrivateKey> result(new RSAPrivateKey);
 
   // First, decode and save the public key.
   SECItem key_der;
   key_der.type = siBuffer;
   key_der.data = const_cast<unsigned char*>(&input[0]);
@@ skipping 148 matching lines @@
   result->public_key_ = SECKEY_ConvertToPublicKey(result->key_);
   if (!result->public_key_) {
     NOTREACHED();
     return NULL;
   }
 
   return result.release();
 }
 
 }  // namespace crypto