The SSL server's RSA private key must be imported with the...

base/crypto/rsa_private_key_nss.cc

 // Copyright (c) 2009 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 "base/crypto/rsa_private_key.h"
 
 #include <cryptohi.h>
 #include <keyhi.h>
 #include <pk11pub.h>
 
@@ skipping 205 matching lines @@
 
   scoped_ptr<RSAPrivateKey> result(new RSAPrivateKey);
 
   PK11SlotInfo *slot = GetDefaultNSSKeySlot();
   if (!slot)
     return NULL;
 
   SECItem der_private_key_info;
   der_private_key_info.data = const_cast<unsigned char*>(&input.front());
   der_private_key_info.len = input.size();
-  SECStatus rv =  PK11_ImportDERPrivateKeyInfoAndReturnKey(slot,
-      &der_private_key_info, NULL, NULL, permanent, sensitive,
-      KU_DIGITAL_SIGNATURE, &result->key_, NULL);
+  // Allow the private key to be used for key unwrapping, data decryption,
+  // and signature generation.
+  const unsigned int key_usage = KU_KEY_ENCIPHERMENT | KU_DATA_ENCIPHERMENT |
+                                 KU_DIGITAL_SIGNATURE;
+  SECStatus rv =  PK11_ImportDERPrivateKeyInfoAndReturnKey(
+      slot, &der_private_key_info, NULL, NULL, permanent, sensitive,
+      key_usage, &result->key_, NULL);
   PK11_FreeSlot(slot);
   if (rv != SECSuccess) {
     NOTREACHED();
     return NULL;
   }
 
   result->public_key_ = SECKEY_ConvertToPublicKey(result->key_);
   if (!result->public_key_) {
     NOTREACHED();
     return NULL;
   }
 
   return result.release();
 }
 
 }  // namespace base