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Unified Diff: crypto/rsa_private_key_mac.cc

Issue 6805019: Move crypto files out of base, to a top level directory. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Fixes comments by eroman Created 9 years, 8 months ago
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Index: crypto/rsa_private_key_mac.cc
===================================================================
--- crypto/rsa_private_key_mac.cc (revision 0)
+++ crypto/rsa_private_key_mac.cc (revision 0)
@@ -0,0 +1,196 @@
+// 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 <list>
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "crypto/cssm_init.h"
+
+namespace crypto {
+
+// static
+RSAPrivateKey* RSAPrivateKey::Create(uint16 num_bits) {
+ scoped_ptr<RSAPrivateKey> result(new RSAPrivateKey);
+
+ CSSM_CC_HANDLE cc_handle;
+ CSSM_RETURN crtn;
+ crtn = CSSM_CSP_CreateKeyGenContext(GetSharedCSPHandle(), CSSM_ALGID_RSA,
+ num_bits, NULL, NULL, NULL, NULL, NULL,
+ &cc_handle);
+ if (crtn) {
+ NOTREACHED() << "CSSM_CSP_CreateKeyGenContext failed: " << crtn;
+ return NULL;
+ }
+
+ CSSM_DATA label = { 9,
+ const_cast<uint8*>(reinterpret_cast<const uint8*>("temp_key")) };
+ crtn = CSSM_GenerateKeyPair(cc_handle,
+ CSSM_KEYUSE_VERIFY,
+ CSSM_KEYATTR_RETURN_DATA | CSSM_KEYATTR_EXTRACTABLE, &label,
+ result->public_key(), CSSM_KEYUSE_SIGN,
+ CSSM_KEYATTR_RETURN_DATA | CSSM_KEYATTR_EXTRACTABLE, &label, NULL,
+ result->key());
+ CSSM_DeleteContext(cc_handle);
+ if (crtn) {
+ NOTREACHED() << "CSSM_CSP_CreateKeyGenContext failed: " << crtn;
+ return NULL;
+ }
+
+ return result.release();
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::CreateSensitive(uint16 num_bits) {
+ NOTIMPLEMENTED();
+ return NULL;
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::CreateFromPrivateKeyInfo(
+ const std::vector<uint8>& input) {
+ if (input.empty())
+ return NULL;
+
+ scoped_ptr<RSAPrivateKey> result(new RSAPrivateKey);
+
+ CSSM_KEY key;
+ memset(&key, 0, sizeof(key));
+ key.KeyData.Data = const_cast<uint8*>(&input.front());
+ key.KeyData.Length = input.size();
+ key.KeyHeader.Format = CSSM_KEYBLOB_RAW_FORMAT_PKCS8;
+ key.KeyHeader.HeaderVersion = CSSM_KEYHEADER_VERSION;
+ key.KeyHeader.BlobType = CSSM_KEYBLOB_RAW;
+ key.KeyHeader.AlgorithmId = CSSM_ALGID_RSA;
+ key.KeyHeader.KeyClass = CSSM_KEYCLASS_PRIVATE_KEY;
+ key.KeyHeader.KeyAttr = CSSM_KEYATTR_EXTRACTABLE;
+ key.KeyHeader.KeyUsage = CSSM_KEYUSE_ANY;
+
+ CSSM_KEY_SIZE key_size;
+ CSSM_RETURN crtn;
+ crtn = CSSM_QueryKeySizeInBits(GetSharedCSPHandle(), NULL, &key, &key_size);
+ if (crtn) {
+ NOTREACHED() << "CSSM_QueryKeySizeInBits failed: " << crtn;
+ return NULL;
+ }
+ key.KeyHeader.LogicalKeySizeInBits = key_size.LogicalKeySizeInBits;
+
+ // Perform a NULL unwrap operation on the key so that result's key_
+ // instance variable points to a key that can be released via CSSM_FreeKey().
+ CSSM_ACCESS_CREDENTIALS creds;
+ memset(&creds, 0, sizeof(CSSM_ACCESS_CREDENTIALS));
+ CSSM_CC_HANDLE cc_handle;
+ crtn = CSSM_CSP_CreateSymmetricContext(GetSharedCSPHandle(), CSSM_ALGID_NONE,
+ CSSM_ALGMODE_NONE, &creds, NULL, NULL, CSSM_PADDING_NONE, 0, &cc_handle);
+ if (crtn) {
+ NOTREACHED() << "CSSM_CSP_CreateSymmetricContext failed: " << crtn;
+ return NULL;
+ }
+ CSSM_DATA label_data, desc_data = { 0, NULL };
+ label_data.Data =
+ const_cast<uint8*>(reinterpret_cast<const uint8*>("unwrapped"));
+ label_data.Length = 9;
+ crtn = CSSM_UnwrapKey(cc_handle, NULL, &key, CSSM_KEYUSE_ANY,
+ CSSM_KEYATTR_RETURN_DATA | CSSM_KEYATTR_EXTRACTABLE, &label_data,
+ NULL, result->key(), &desc_data);
+ if (crtn) {
+ NOTREACHED() << "CSSM_UnwrapKey failed: " << crtn;
+ return NULL;
+ }
+
+ // Extract a public key from the private key.
+ // Apple doesn't accept CSSM_KEYBLOB_RAW_FORMAT_X509 as a valid key
+ // format when attempting to generate certs, so use PKCS1 instead.
+ PrivateKeyInfoCodec codec(true);
+ std::vector<uint8> private_key_data;
+ private_key_data.assign(key.KeyData.Data,
+ key.KeyData.Data + key.KeyData.Length);
+ if (!codec.Import(private_key_data)) {
+ return NULL;
+ }
+ std::vector<uint8> public_key_data;
+ if (!codec.ExportPublicKey(&public_key_data)) {
+ return NULL;
+ }
+
+ CSSM_KEY* public_key = result->public_key();
+ size_t size = public_key_data.size();
+ public_key->KeyData.Data = reinterpret_cast<uint8*>(CSSMMalloc(size));
+ if (!public_key->KeyData.Data) {
+ NOTREACHED() << "CSSMMalloc failed";
+ return NULL;
+ }
+ memcpy(public_key->KeyData.Data, &public_key_data.front(), size);
+ public_key->KeyData.Length = size;
+ public_key->KeyHeader.Format = CSSM_KEYBLOB_RAW_FORMAT_PKCS1;
+ public_key->KeyHeader.HeaderVersion = CSSM_KEYHEADER_VERSION;
+ public_key->KeyHeader.BlobType = CSSM_KEYBLOB_RAW;
+ public_key->KeyHeader.AlgorithmId = CSSM_ALGID_RSA;
+ public_key->KeyHeader.KeyClass = CSSM_KEYCLASS_PUBLIC_KEY;
+ public_key->KeyHeader.KeyAttr = CSSM_KEYATTR_EXTRACTABLE;
+ public_key->KeyHeader.KeyUsage = CSSM_KEYUSE_ANY;
+
+ crtn = CSSM_QueryKeySizeInBits(GetSharedCSPHandle(), NULL, public_key,
+ &key_size);
+ if (crtn) {
+ DLOG(ERROR) << "CSSM_QueryKeySizeInBits failed " << crtn;
+ return NULL;
+ }
+ public_key->KeyHeader.LogicalKeySizeInBits = key_size.LogicalKeySizeInBits;
+
+ return result.release();
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::CreateSensitiveFromPrivateKeyInfo(
+ const std::vector<uint8>& input) {
+ NOTIMPLEMENTED();
+ return NULL;
+}
+
+// static
+RSAPrivateKey* RSAPrivateKey::FindFromPublicKeyInfo(
+ const std::vector<uint8>& input) {
+ NOTIMPLEMENTED();
+ return NULL;
+}
+
+RSAPrivateKey::RSAPrivateKey() {
+ memset(&key_, 0, sizeof(key_));
+ memset(&public_key_, 0, sizeof(public_key_));
+
+ EnsureCSSMInit();
+}
+
+RSAPrivateKey::~RSAPrivateKey() {
+ if (key_.KeyData.Data) {
+ CSSM_FreeKey(GetSharedCSPHandle(), NULL, &key_, CSSM_FALSE);
+ }
+ if (public_key_.KeyData.Data) {
+ CSSM_FreeKey(GetSharedCSPHandle(), NULL, &public_key_, CSSM_FALSE);
+ }
+}
+
+bool RSAPrivateKey::ExportPrivateKey(std::vector<uint8>* output) {
+ if (!key_.KeyData.Data || !key_.KeyData.Length) {
+ return false;
+ }
+ output->clear();
+ output->insert(output->end(), key_.KeyData.Data,
+ key_.KeyData.Data + key_.KeyData.Length);
+ return true;
+}
+
+bool RSAPrivateKey::ExportPublicKey(std::vector<uint8>* output) {
+ PrivateKeyInfoCodec private_key_info(true);
+ std::vector<uint8> private_key_data;
+ private_key_data.assign(key_.KeyData.Data,
+ key_.KeyData.Data + key_.KeyData.Length);
+ return (private_key_info.Import(private_key_data) &&
+ private_key_info.ExportPublicKeyInfo(output));
+}
+
+} // namespace crypto
Property changes on: crypto\rsa_private_key_mac.cc
___________________________________________________________________
Added: svn:eol-style
+ LF
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