Removing NSS files and USE_OPENSSL flag

crypto/symmetric_key_nss.cc

Index: crypto/symmetric_key_nss.cc
diff --git a/crypto/symmetric_key_nss.cc b/crypto/symmetric_key_nss.cc
deleted file mode 100644
index e3aacc745b322b0eb5da77a091e4e7d342f61068..0000000000000000000000000000000000000000
--- a/crypto/symmetric_key_nss.cc
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (c) 2012 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/symmetric_key.h"
-
-#include <nss.h>
-#include <pk11pub.h>
-#include <stddef.h>
-
-#include "base/logging.h"
-#include "crypto/nss_util.h"
-#include "crypto/scoped_nss_types.h"
-
-namespace crypto {
-
-SymmetricKey::~SymmetricKey() {}
-
-// static
-SymmetricKey* SymmetricKey::GenerateRandomKey(Algorithm algorithm,
-                                              size_t key_size_in_bits) {
-  DCHECK_EQ(AES, algorithm);
-
-  EnsureNSSInit();
-
-  // Whitelist supported key sizes to avoid accidentaly relying on
-  // algorithms available in NSS but not BoringSSL and vice
-  // versa. Note that BoringSSL does not support AES-192.
-  if (key_size_in_bits != 128 && key_size_in_bits != 256)
-    return NULL;
-
-  ScopedPK11Slot slot(PK11_GetInternalSlot());
-  if (!slot.get())
-    return NULL;
-
-  PK11SymKey* sym_key = PK11_KeyGen(slot.get(), CKM_AES_KEY_GEN, NULL,
-                                    key_size_in_bits / 8, NULL);
-  if (!sym_key)
-    return NULL;
-
-  return new SymmetricKey(sym_key);
-}
-
-// static
-SymmetricKey* SymmetricKey::DeriveKeyFromPassword(Algorithm algorithm,
-                                                  const std::string& password,
-                                                  const std::string& salt,
-                                                  size_t iterations,
-                                                  size_t key_size_in_bits) {
-  EnsureNSSInit();
-  if (salt.empty() || iterations == 0 || key_size_in_bits == 0)
-    return NULL;
-
-  if (algorithm == AES) {
-    // Whitelist supported key sizes to avoid accidentaly relying on
-    // algorithms available in NSS but not BoringSSL and vice
-    // versa. Note that BoringSSL does not support AES-192.
-    if (key_size_in_bits != 128 && key_size_in_bits != 256)
-      return NULL;
-  }
-
-  SECItem password_item;
-  password_item.type = siBuffer;
-  password_item.data = reinterpret_cast<unsigned char*>(
-      const_cast<char *>(password.data()));
-  password_item.len = password.size();
-
-  SECItem salt_item;
-  salt_item.type = siBuffer;
-  salt_item.data = reinterpret_cast<unsigned char*>(
-      const_cast<char *>(salt.data()));
-  salt_item.len = salt.size();
-
-  SECOidTag cipher_algorithm =
-      algorithm == AES ? SEC_OID_AES_256_CBC : SEC_OID_HMAC_SHA1;
-  ScopedSECAlgorithmID alg_id(PK11_CreatePBEV2AlgorithmID(SEC_OID_PKCS5_PBKDF2,
-                                                          cipher_algorithm,
-                                                          SEC_OID_HMAC_SHA1,
-                                                          key_size_in_bits / 8,
-                                                          iterations,
-                                                          &salt_item));
-  if (!alg_id.get())
-    return NULL;
-
-  ScopedPK11Slot slot(PK11_GetInternalSlot());
-  if (!slot.get())
-    return NULL;
-
-  PK11SymKey* sym_key = PK11_PBEKeyGen(slot.get(), alg_id.get(), &password_item,
-                                       PR_FALSE, NULL);
-  if (!sym_key)
-    return NULL;
-
-  return new SymmetricKey(sym_key);
-}
-
-// static
-SymmetricKey* SymmetricKey::Import(Algorithm algorithm,
-                                   const std::string& raw_key) {
-  EnsureNSSInit();
-
-  if (algorithm == AES) {
-    // Whitelist supported key sizes to avoid accidentaly relying on
-    // algorithms available in NSS but not BoringSSL and vice
-    // versa. Note that BoringSSL does not support AES-192.
-    if (raw_key.size() != 128/8 && raw_key.size() != 256/8)
-      return NULL;
-  }
-
-  CK_MECHANISM_TYPE cipher =
-      algorithm == AES ? CKM_AES_CBC : CKM_SHA_1_HMAC;
-
-  SECItem key_item;
-  key_item.type = siBuffer;
-  key_item.data = reinterpret_cast<unsigned char*>(
-      const_cast<char *>(raw_key.data()));
-  key_item.len = raw_key.size();
-
-  ScopedPK11Slot slot(PK11_GetInternalSlot());
-  if (!slot.get())
-    return NULL;
-
-  // The exact value of the |origin| argument doesn't matter to NSS as long as
-  // it's not PK11_OriginFortezzaHack, so we pass PK11_OriginUnwrap as a
-  // placeholder.
-  PK11SymKey* sym_key = PK11_ImportSymKey(slot.get(), cipher, PK11_OriginUnwrap,
-                                          CKA_ENCRYPT, &key_item, NULL);
-  if (!sym_key)
-    return NULL;
-
-  return new SymmetricKey(sym_key);
-}
-
-bool SymmetricKey::GetRawKey(std::string* raw_key) {
-  SECStatus rv = PK11_ExtractKeyValue(key_.get());
-  if (SECSuccess != rv)
-    return false;
-
-  SECItem* key_item = PK11_GetKeyData(key_.get());
-  if (!key_item)
-    return false;
-
-  raw_key->assign(reinterpret_cast<char*>(key_item->data), key_item->len);
-  return true;
-}
-
-SymmetricKey::SymmetricKey(PK11SymKey* key) : key_(key) {
-  DCHECK(key);
-}
-
-}  // namespace crypto