diff --git a/include/crypto/ec.h b/include/crypto/ec.h
index 347474a..a3d87e9 100644
--- a/include/crypto/ec.h
+++ b/include/crypto/ec.h
@@ -16,10 +16,10 @@
 # include <openssl/opensslconf.h>
 # include <openssl/evp.h>
 
-const char *ec_curve_nid2name(int nid);
-int ec_curve_name2nid(const char *name);
-const char *ec_curve_nid2nist_int(int nid);
-int ec_curve_nist2nid_int(const char *name);
+const char *ossl_ec_curve_nid2name(int nid);
+int ossl_ec_curve_name2nid(const char *name);
+const char *ossl_ec_curve_nid2nist_int(int nid);
+int ossl_ec_curve_nist2nid_int(const char *name);
 int evp_pkey_ctx_set_ec_param_enc_prov(EVP_PKEY_CTX *ctx, int param_enc);
 
 # ifndef OPENSSL_NO_EC
@@ -48,43 +48,45 @@
  * reduction round on the input can be omitted by the underlying
  * implementations for better SCA properties on regular input values).
  */
-__owur int ec_group_do_inverse_ord(const EC_GROUP *group, BIGNUM *res,
-                                   const BIGNUM *x, BN_CTX *ctx);
+__owur int ossl_ec_group_do_inverse_ord(const EC_GROUP *group, BIGNUM *res,
+                                        const BIGNUM *x, BN_CTX *ctx);
 
 /*-
  * ECDH Key Derivation Function as defined in ANSI X9.63
  */
-int ecdh_KDF_X9_63(unsigned char *out, size_t outlen,
-                   const unsigned char *Z, size_t Zlen,
-                   const unsigned char *sinfo, size_t sinfolen,
-                   const EVP_MD *md, OSSL_LIB_CTX *libctx, const char *propq);
+int ossl_ecdh_kdf_X9_63(unsigned char *out, size_t outlen,
+                        const unsigned char *Z, size_t Zlen,
+                        const unsigned char *sinfo, size_t sinfolen,
+                        const EVP_MD *md, OSSL_LIB_CTX *libctx,
+                        const char *propq);
 
-int ec_key_public_check(const EC_KEY *eckey, BN_CTX *ctx);
-int ec_key_public_check_quick(const EC_KEY *eckey, BN_CTX *ctx);
-int ec_key_private_check(const EC_KEY *eckey);
-int ec_key_pairwise_check(const EC_KEY *eckey, BN_CTX *ctx);
-OSSL_LIB_CTX *ec_key_get_libctx(const EC_KEY *eckey);
-const char *ec_key_get0_propq(const EC_KEY *eckey);
-void ec_key_set0_libctx(EC_KEY *key, OSSL_LIB_CTX *libctx);
+int ossl_ec_key_public_check(const EC_KEY *eckey, BN_CTX *ctx);
+int ossl_ec_key_public_check_quick(const EC_KEY *eckey, BN_CTX *ctx);
+int ossl_ec_key_private_check(const EC_KEY *eckey);
+int ossl_ec_key_pairwise_check(const EC_KEY *eckey, BN_CTX *ctx);
+OSSL_LIB_CTX *ossl_ec_key_get_libctx(const EC_KEY *eckey);
+const char *ossl_ec_key_get0_propq(const EC_KEY *eckey);
+void ossl_ec_key_set0_libctx(EC_KEY *key, OSSL_LIB_CTX *libctx);
 
 /* Backend support */
-int ec_group_todata(const EC_GROUP *group, OSSL_PARAM_BLD *tmpl,
-                    OSSL_PARAM params[], OSSL_LIB_CTX *libctx,
-                    const char *propq,
-                    BN_CTX *bnctx, unsigned char **genbuf);
-int ec_group_fromdata(EC_KEY *ec, const OSSL_PARAM params[]);
-int ec_group_set_params(EC_GROUP *group, const OSSL_PARAM params[]);
-int ec_key_fromdata(EC_KEY *ecx, const OSSL_PARAM params[], int include_private);
-int ec_key_otherparams_fromdata(EC_KEY *ec, const OSSL_PARAM params[]);
-int ec_set_ecdh_cofactor_mode(EC_KEY *ec, int mode);
-int ec_encoding_name2id(const char *name);
-int ec_encoding_param2id(const OSSL_PARAM *p, int *id);
-int ec_pt_format_name2id(const char *name);
-int ec_pt_format_param2id(const OSSL_PARAM *p, int *id);
-char *ec_pt_format_id2name(int id);
+int ossl_ec_group_todata(const EC_GROUP *group, OSSL_PARAM_BLD *tmpl,
+                         OSSL_PARAM params[], OSSL_LIB_CTX *libctx,
+                         const char *propq,
+                         BN_CTX *bnctx, unsigned char **genbuf);
+int ossl_ec_group_fromdata(EC_KEY *ec, const OSSL_PARAM params[]);
+int ossl_ec_group_set_params(EC_GROUP *group, const OSSL_PARAM params[]);
+int ossl_ec_key_fromdata(EC_KEY *ecx, const OSSL_PARAM params[],
+                         int include_private);
+int ossl_ec_key_otherparams_fromdata(EC_KEY *ec, const OSSL_PARAM params[]);
+int ossl_ec_set_ecdh_cofactor_mode(EC_KEY *ec, int mode);
+int ossl_ec_encoding_name2id(const char *name);
+int ossl_ec_encoding_param2id(const OSSL_PARAM *p, int *id);
+int ossl_ec_pt_format_name2id(const char *name);
+int ossl_ec_pt_format_param2id(const OSSL_PARAM *p, int *id);
+char *ossl_ec_pt_format_id2name(int id);
 
-char *ec_check_group_type_id2name(int flags);
-int ec_set_check_group_type_from_name(EC_KEY *ec, const char *name);
+char *ossl_ec_check_group_type_id2name(int flags);
+int ossl_ec_set_check_group_type_from_name(EC_KEY *ec, const char *name);
 
 # endif /* OPENSSL_NO_EC */
 #endif
diff --git a/include/crypto/ecx.h b/include/crypto/ecx.h
index 678cfcc..af03d32 100644
--- a/include/crypto/ecx.h
+++ b/include/crypto/ecx.h
@@ -76,13 +76,12 @@
 
 typedef struct ecx_key_st ECX_KEY;
 
-size_t ecx_key_length(ECX_KEY_TYPE type);
-ECX_KEY *ecx_key_new(OSSL_LIB_CTX *libctx, ECX_KEY_TYPE type, int haspubkey,
-                     const char *propq);
-void ecx_key_set0_libctx(ECX_KEY *key, OSSL_LIB_CTX *libctx);
-unsigned char *ecx_key_allocate_privkey(ECX_KEY *key);
-void ecx_key_free(ECX_KEY *key);
-int ecx_key_up_ref(ECX_KEY *key);
+ECX_KEY *ossl_ecx_key_new(OSSL_LIB_CTX *libctx, ECX_KEY_TYPE type,
+                          int haspubkey, const char *propq);
+void ossl_ecx_key_set0_libctx(ECX_KEY *key, OSSL_LIB_CTX *libctx);
+unsigned char *ossl_ecx_key_allocate_privkey(ECX_KEY *key);
+void ossl_ecx_key_free(ECX_KEY *key);
+int ossl_ecx_key_up_ref(ECX_KEY *key);
 
 int X25519(uint8_t out_shared_key[32], const uint8_t private_key[32],
            const uint8_t peer_public_value[32]);
@@ -116,13 +115,13 @@
 
 
 /* Backend support */
-int ecx_public_from_private(ECX_KEY *key);
-int ecx_key_fromdata(ECX_KEY *ecx, const OSSL_PARAM params[],
-                     int include_private);
+int ossl_ecx_public_from_private(ECX_KEY *key);
+int ossl_ecx_key_fromdata(ECX_KEY *ecx, const OSSL_PARAM params[],
+                          int include_private);
 
-ECX_KEY *evp_pkey_get1_X25519(EVP_PKEY *pkey);
-ECX_KEY *evp_pkey_get1_X448(EVP_PKEY *pkey);
-ECX_KEY *evp_pkey_get1_ED25519(EVP_PKEY *pkey);
-ECX_KEY *evp_pkey_get1_ED448(EVP_PKEY *pkey);
+ECX_KEY *ossl_evp_pkey_get1_X25519(EVP_PKEY *pkey);
+ECX_KEY *ossl_evp_pkey_get1_X448(EVP_PKEY *pkey);
+ECX_KEY *ossl_evp_pkey_get1_ED25519(EVP_PKEY *pkey);
+ECX_KEY *ossl_evp_pkey_get1_ED448(EVP_PKEY *pkey);
 # endif /* OPENSSL_NO_EC */
 #endif
diff --git a/include/crypto/evp.h b/include/crypto/evp.h
index 1b0a00d..9115f47 100644
--- a/include/crypto/evp.h
+++ b/include/crypto/evp.h
@@ -182,11 +182,11 @@
 const EVP_PKEY_METHOD *ossl_dh_pkey_method(void);
 const EVP_PKEY_METHOD *ossl_dhx_pkey_method(void);
 const EVP_PKEY_METHOD *ossl_dsa_pkey_method(void);
-const EVP_PKEY_METHOD *ec_pkey_method(void);
-const EVP_PKEY_METHOD *ecx25519_pkey_method(void);
-const EVP_PKEY_METHOD *ecx448_pkey_method(void);
-const EVP_PKEY_METHOD *ed25519_pkey_method(void);
-const EVP_PKEY_METHOD *ed448_pkey_method(void);
+const EVP_PKEY_METHOD *ossl_ec_pkey_method(void);
+const EVP_PKEY_METHOD *ossl_ecx25519_pkey_method(void);
+const EVP_PKEY_METHOD *ossl_ecx448_pkey_method(void);
+const EVP_PKEY_METHOD *ossl_ed25519_pkey_method(void);
+const EVP_PKEY_METHOD *ossl_ed448_pkey_method(void);
 const EVP_PKEY_METHOD *ossl_rsa_pkey_method(void);
 const EVP_PKEY_METHOD *ossl_rsa_pss_pkey_method(void);
 
diff --git a/include/crypto/sm2.h b/include/crypto/sm2.h
index 2bd0af0..e3278a3 100644
--- a/include/crypto/sm2.h
+++ b/include/crypto/sm2.h
@@ -20,65 +20,67 @@
 #  include <openssl/ec.h>
 #  include "crypto/types.h"
 
-int sm2_key_private_check(const EC_KEY *eckey);
+int ossl_sm2_key_private_check(const EC_KEY *eckey);
 
 /* The default user id as specified in GM/T 0009-2012 */
 #  define SM2_DEFAULT_USERID "1234567812345678"
 
-int sm2_compute_z_digest(uint8_t *out,
-                         const EVP_MD *digest,
-                         const uint8_t *id,
-                         const size_t id_len,
-                         const EC_KEY *key);
+int ossl_sm2_compute_z_digest(uint8_t *out,
+                              const EVP_MD *digest,
+                              const uint8_t *id,
+                              const size_t id_len,
+                              const EC_KEY *key);
 
 /*
  * SM2 signature operation. Computes Z and then signs H(Z || msg) using SM2
  */
-ECDSA_SIG *sm2_do_sign(const EC_KEY *key,
+ECDSA_SIG *ossl_sm2_do_sign(const EC_KEY *key,
+                            const EVP_MD *digest,
+                            const uint8_t *id,
+                            const size_t id_len,
+                            const uint8_t *msg, size_t msg_len);
+
+int ossl_sm2_do_verify(const EC_KEY *key,
                        const EVP_MD *digest,
+                       const ECDSA_SIG *signature,
                        const uint8_t *id,
                        const size_t id_len,
                        const uint8_t *msg, size_t msg_len);
 
-int sm2_do_verify(const EC_KEY *key,
-                  const EVP_MD *digest,
-                  const ECDSA_SIG *signature,
-                  const uint8_t *id,
-                  const size_t id_len,
-                  const uint8_t *msg, size_t msg_len);
-
 /*
  * SM2 signature generation.
  */
-int sm2_internal_sign(const unsigned char *dgst, int dgstlen,
-                      unsigned char *sig, unsigned int *siglen, EC_KEY *eckey);
+int ossl_sm2_internal_sign(const unsigned char *dgst, int dgstlen,
+                           unsigned char *sig, unsigned int *siglen,
+                           EC_KEY *eckey);
 
 /*
  * SM2 signature verification.
  */
-int sm2_internal_verify(const unsigned char *dgst, int dgstlen,
-                        const unsigned char *sig, int siglen, EC_KEY *eckey);
+int ossl_sm2_internal_verify(const unsigned char *dgst, int dgstlen,
+                             const unsigned char *sig, int siglen,
+                             EC_KEY *eckey);
 
 /*
  * SM2 encryption
  */
-int sm2_ciphertext_size(const EC_KEY *key, const EVP_MD *digest, size_t msg_len,
-                        size_t *ct_size);
+int ossl_sm2_ciphertext_size(const EC_KEY *key, const EVP_MD *digest,
+                             size_t msg_len, size_t *ct_size);
 
-int sm2_plaintext_size(const EC_KEY *key, const EVP_MD *digest, size_t msg_len,
-                       size_t *pt_size);
+int ossl_sm2_plaintext_size(const EC_KEY *key, const EVP_MD *digest,
+                            size_t msg_len, size_t *pt_size);
 
-int sm2_encrypt(const EC_KEY *key,
-                const EVP_MD *digest,
-                const uint8_t *msg,
-                size_t msg_len,
-                uint8_t *ciphertext_buf, size_t *ciphertext_len);
+int ossl_sm2_encrypt(const EC_KEY *key,
+                     const EVP_MD *digest,
+                     const uint8_t *msg, size_t msg_len,
+                     uint8_t *ciphertext_buf, size_t *ciphertext_len);
 
-int sm2_decrypt(const EC_KEY *key,
-                const EVP_MD *digest,
-                const uint8_t *ciphertext,
-                size_t ciphertext_len, uint8_t *ptext_buf, size_t *ptext_len);
+int ossl_sm2_decrypt(const EC_KEY *key,
+                     const EVP_MD *digest,
+                     const uint8_t *ciphertext, size_t ciphertext_len,
+                     uint8_t *ptext_buf, size_t *ptext_len);
 
-const unsigned char *sm2_algorithmidentifier_encoding(int md_nid, size_t *len);
+const unsigned char *ossl_sm2_algorithmidentifier_encoding(int md_nid,
+                                                           size_t *len);
 # endif /* OPENSSL_NO_SM2 */
 #endif