SERVER-41644 Expose explicit encryption helpers in community shell

1 files changed, 100 insertions, 0 deletions

diff --git a/src/mongo/crypto/symmetric_key.cpp b/src/mongo/crypto/symmetric_key.cpp
new file mode 100644
index 00000000000..a2bf2526bea
--- /dev/null
+++ b/src/mongo/crypto/symmetric_key.cpp
@@ -0,0 +1,100 @@
+/**
+ *    Copyright (C) 2019-present MongoDB, Inc.
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the Server Side Public License, version 1,
+ *    as published by MongoDB, Inc.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    Server Side Public License for more details.
+ *
+ *    You should have received a copy of the Server Side Public License
+ *    along with this program. If not, see
+ *    <http://www.mongodb.com/licensing/server-side-public-license>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the Server Side Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kStorage
+
+#include "mongo/platform/basic.h"
+
+#include "mongo/crypto/symmetric_key.h"
+
+#include <cstring>
+
+#include "mongo/crypto/symmetric_crypto.h"
+#include "mongo/util/log.h"
+#include "mongo/util/secure_zero_memory.h"
+#include "mongo/util/str.h"
+
+namespace mongo {
+
+std::string SymmetricKeyId::_initStrRep() const {
+    return str::stream() << _name << " (" << _id << ")";
+}
+
+const std::string& SymmetricKeyId::toString() const {
+    if (!_strRep.empty()) {
+        return _strRep;
+    } else {
+        return _name;
+    }
+}
+
+SymmetricKey::SymmetricKey(const uint8_t* key,
+                           size_t keySize,
+                           uint32_t algorithm,
+                           SymmetricKeyId keyId,
+                           uint32_t initializationCount)
+    : _algorithm(algorithm),
+      _keySize(keySize),
+      _key(key, key + keySize),
+      _keyId(std::move(keyId)),
+      _initializationCount(initializationCount),
+      _invocationCount(0) {
+    if (_keySize < crypto::minKeySize || _keySize > crypto::maxKeySize) {
+        error() << "Attempt to construct symmetric key of invalid size: " << _keySize;
+        return;
+    }
+}
+
+SymmetricKey::SymmetricKey(SecureVector<uint8_t> key, uint32_t algorithm, SymmetricKeyId keyId)
+    : _algorithm(algorithm),
+      _keySize(key->size()),
+      _key(std::move(key)),
+      _keyId(std::move(keyId)),
+      _initializationCount(1),
+      _invocationCount(0) {}
+
+SymmetricKey::SymmetricKey(SymmetricKey&& sk)
+    : _algorithm(sk._algorithm),
+      _keySize(sk._keySize),
+      _key(std::move(sk._key)),
+      _keyId(std::move(sk._keyId)),
+      _initializationCount(sk._initializationCount),
+      _invocationCount(sk._invocationCount.load()) {}
+
+SymmetricKey& SymmetricKey::operator=(SymmetricKey&& sk) {
+    _algorithm = sk._algorithm;
+    _keySize = sk._keySize;
+    _key = std::move(sk._key);
+    _keyId = std::move(sk._keyId);
+    _initializationCount = sk._initializationCount;
+    _invocationCount.store(sk._invocationCount.load());
+
+    return *this;
+}
+}  // namespace mongo