Make sure gcrypt is initalized when SymmetricCipherGcrypt objects are created.

src/crypto/Crypto.cpp

@@ -76,6 +76,11 @@ void Crypto::init()
     m_initalized = true;
 }
 
+bool Crypto::initalized()
+{
+    return m_initalized;
+}
+
 bool Crypto::selfTest()
 {
     return (gcry_control(GCRYCTL_SELFTEST) == 0);

src/crypto/Crypto.h

@@ -22,6 +22,7 @@ class Crypto
 {
 public:
     static void init();
+    static bool initalized();
     static bool selfTest();
 
 private:

src/crypto/SymmetricCipherGcrypt.cpp

@@ -17,6 +17,13 @@
 
 #include "SymmetricCipherGcrypt.h"
 
+#include "crypto/Crypto.h"
+
+SymmetricCipherGcrypt::SymmetricCipherGcrypt()
+{
+    Q_ASSERT(Crypto::initalized());
+}
+
 SymmetricCipherGcrypt::~SymmetricCipherGcrypt()
 {
     gcry_cipher_close(m_ctx);

src/crypto/SymmetricCipherGcrypt.h

@@ -25,6 +25,7 @@
 class SymmetricCipherGcrypt : public SymmetricCipherBackend
 {
 public:
+    SymmetricCipherGcrypt();
     ~SymmetricCipherGcrypt();
     void setAlgorithm(SymmetricCipher::Algorithm algo);
     void setMode(SymmetricCipher::Mode mode);