+/* RFC 5114 parameters */
+DH *DH_get_1024_160(void);
+DH *DH_get_2048_224(void);
+DH *DH_get_2048_256(void);
+
+#define EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, len) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \
+ EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN, len, NULL)
+
+#define EVP_PKEY_CTX_set_dh_paramgen_subprime_len(ctx, len) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \
+ EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN, len, NULL)
+
+#define EVP_PKEY_CTX_set_dh_paramgen_type(ctx, typ) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \
+ EVP_PKEY_CTRL_DH_PARAMGEN_TYPE, typ, NULL)
+
+#define EVP_PKEY_CTX_set_dh_paramgen_generator(ctx, gen) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \
+ EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR, gen, NULL)
+
+#define EVP_PKEY_CTX_set_dh_rfc5114(ctx, gen) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_PARAMGEN, \
+ EVP_PKEY_CTRL_DH_RFC5114, gen, NULL)
+
+#define EVP_PKEY_CTX_set_dhx_rfc5114(ctx, gen) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_PARAMGEN, \
+ EVP_PKEY_CTRL_DH_RFC5114, gen, NULL)
+
+#define EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN (EVP_PKEY_ALG_CTRL + 1)
+#define EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR (EVP_PKEY_ALG_CTRL + 2)
+#define EVP_PKEY_CTRL_DH_RFC5114 (EVP_PKEY_ALG_CTRL + 3)
+#define EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN (EVP_PKEY_ALG_CTRL + 4)
+#define EVP_PKEY_CTRL_DH_PARAMGEN_TYPE (EVP_PKEY_ALG_CTRL + 5)
+