dsa_st
struct dsa_st *dsa; /* DSA */
struct dsa_st;
struct dsa_st *EVP_PKEY_get0_DSA(EVP_PKEY *pkey);
struct dsa_st *EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, struct dsa_st *key);
typedef struct dsa_st DSA;