Fix crypto primitives

include/relay/CryptoPrimitives.h

@@ -7,37 +7,37 @@
 /**
  * @brief A private key for asymmetric cryptography
  */
-typedef struct {
+struct PrivateKey {
 
     /// @brief The size of a private key
     static const int size = 32;
 
     uint8_t bytes[size];
 
-} PrivateKey;
+};
 
 /**
  * @brief A public key for asymmetric cryptography
  */
-typedef struct {
+struct PublicKey {
 
     /// @brief The size of a public key
     static const int size = 32;
 
     uint8_t bytes[size];
 
-} PublicKey;
+};
 
 /**
  * @brief A signature of some data using a private key
  */
-typedef struct {
+struct Signature {
 
     /// @brief The size of a message signature
     static const int size = 64;
 
     uint8_t bytes[size];
 
-} Signature;
+};
 
 #pragma pack(pop)