Builds on windows again

core/PasswordManager.h

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+#ifndef PASSWORDMANAGER_H
+#define PASSWORDMANAGER_H
+
+#include "Expected.h"
+#include <string>
+
+#include <botan/botan.h>
+#include <botan/symkey.h>
+
+#include <map>
+
+struct StrengthenedKey {
+	Botan::SymmetricKey cipher_key;
+	Botan::SymmetricKey mac_key;
+	Botan::InitializationVector iv;
+
+	StrengthenedKey() {}
+	StrengthenedKey(const Botan::SymmetricKey &ck, const Botan::SymmetricKey &mk,
+					const Botan::InitializationVector &i)
+		: cipher_key(ck)
+		, mac_key(mk)
+		, iv(i)
+	{}
+};
+
+
+class PasswordManager {
+public:
+
+//	static PasswordManager create(const std::string &file_name);
+
+	PasswordManager();
+	/** Unlocks the passwords of the connections.
+	 *
+	 * \return Normally it return a bool specifying if the password was accepted.
+	 *   on rare occasions it could return an error.
+	 */
+	Expected<bool> unlock(const std::string &master_password);
+
+	Expected<bool> changeMasterPassword(const std::string &master_password,
+										const std::string &new_master_password);
+
+	/** Forget master password
+	 */
+	void lock();
+	bool locked() const;
+
+	Expected<void> savePassword(const std::string &key, const std::string &password);
+	Expected<bool> getPassword(const std::string &key, std::string &out);
+
+private:
+	Botan::AutoSeeded_RNG m_rng;
+	Botan::OctetString    m_keySalt;	  // salt for generating crypto key
+	StrengthenedKey       m_masterKey;  // crypto key
+	Botan::OctetString    m_hashSalt;   // salt of the hash of the passphrase
+	Botan::OctetString    m_masterHash; // hash for checking the passphrase
+
+	using t_KeyPasswords = std::map<std::string, std::string>;
+
+	t_KeyPasswords m_store;
+
+	static Botan::OctetString hashStrengthenedKey(const StrengthenedKey &key, const Botan::OctetString &salt);
+};
+
+
+#endif // PASSWORDMANAGER_H