+
+#define EVP_PKEY_OP_UNDEFINED 0
+#define EVP_PKEY_OP_PARAMGEN 1
+#define EVP_PKEY_OP_KEYGEN 2
+#define EVP_PKEY_OP_SIGN 3
+#define EVP_PKEY_OP_VERIFY 4
+#define EVP_PKEY_OP_VERIFYRECOVER 5
+#define EVP_PKEY_OP_SIGNCTX 6
+#define EVP_PKEY_OP_VERIFYCTX 7
+#define EVP_PKEY_OP_ENCRYPT 8
+#define EVP_PKEY_OP_DECRYPT 9
+
+const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type, ENGINE *e);
+EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey);
+void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx);
+int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
+ int cmd, int p1, void *p2);
+
+
+int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx);
+int EVP_PKEY_sign(EVP_PKEY_CTX *ctx,
+ unsigned char *sig, int *siglen,
+ unsigned char *tbs, int tbslen);
+int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx);
+int EVP_PKEY_verify(EVP_PKEY_CTX *ctx,
+ unsigned char *sig, int *siglen,
+ unsigned char *tbs, int tbslen);
+int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx);
+int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
+ unsigned char *rout, int *routlen,
+ unsigned char *sig, int siglen);
+int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx);
+int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx,
+ unsigned char *out, int *outlen,
+ unsigned char *in, int inlen);
+int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx);
+int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx,
+ unsigned char *out, int *outlen,
+ unsigned char *in, int inlen);
+