In some cases, you may want to set an HVE bit vector's format, and use the same format for multiple queries. The QED library provides an HVE_Duplicate function to make a copy of the HVE and its content.

int HVE_Duplicate(HVE_t *HVE_copy, HVE_t *HVE);

We also provide functions to free memory. The following should be called after you are done with each resource.

int HVE_Clear(HVE_t *HVE);

int QED_Clear_PrivKey(QEDPrivateKey_t *PrivKey);
        
int QED_Clear_PubKey(QEDPublicKey_t *PubKey);
        
int QED_Clear_MessageKey(QEDMessageKey_t *Msgkey);

int QED_Clear_Token(QEDToken_t *Token); 
        
int QED_Clear_Encryption(QEDEncryption_t *Cipher);