void (*set_iv)(struct SilcCipherStruct *, const unsigned char *);
void (*get_iv)(struct SilcCipherStruct *, unsigned char *);
uint32 (*get_key_len)(struct SilcCipherStruct *);
void (*set_iv)(struct SilcCipherStruct *, const unsigned char *);
void (*get_iv)(struct SilcCipherStruct *, unsigned char *);
uint32 (*get_key_len)(struct SilcCipherStruct *);