Apply PBKDF2 when storing passwords

src/base/utils/string.h

@@ -30,10 +30,9 @@
 #ifndef UTILS_STRING_H
 #define UTILS_STRING_H
 
+#include <QLatin1String>
 #include <QString>
 
-class QByteArray;
-class QLatin1String;
 class TriStateBool;
 
 namespace Utils
@@ -42,10 +41,6 @@ namespace Utils
     {
         QString fromDouble(double n, int precision);
 
-        // Implements constant-time comparison to protect against timing attacks
-        // Taken from https://crackstation.net/hashing-security.htm
-        bool slowEquals(const QByteArray &a, const QByteArray &b);
-
         int naturalCompare(const QString &left, const QString &right, const Qt::CaseSensitivity caseSensitivity);
         template <Qt::CaseSensitivity caseSensitivity>
         bool naturalLessThan(const QString &left, const QString &right)