DSA_new, DSA_free - allocate and free DSA objects
#include <openssl/dsa.h> DSA* DSA_new(void); void DSA_free(DSA *dsa);
DSA_new() allocates and initializes a DSA structure. It is equivalent to calling DSA_new_method(NULL).
DSA_free() frees the DSA structure and its components. The values are erased before the memory is returned to the system. If dsa is NULL nothing is done.
If the allocation fails, DSA_new() returns NULL and sets an error code that can be obtained by ERR_get_error. Otherwise it returns a pointer to the newly allocated structure.
DSA_free() returns no value.