diff --git a/plugin/openssl_plugin/common/inc/openssl_adapter.h b/plugin/openssl_plugin/common/inc/openssl_adapter.h
index f4c22ab..5ad1a69 100644
--- a/plugin/openssl_plugin/common/inc/openssl_adapter.h
+++ b/plugin/openssl_plugin/common/inc/openssl_adapter.h
@@ -215,12 +215,6 @@ EVP_PKEY *OpensslD2iAutoPrivateKey(EVP_PKEY **a, const unsigned char **pp, long
 struct rsa_st *OpensslEvpPkeyGet1Rsa(EVP_PKEY *pkey);
 int OpensslEvpPkeySet1Rsa(EVP_PKEY *pkey, struct rsa_st *key);
 int OpensslEvpPkeyAssignRsa(EVP_PKEY *pkey, struct rsa_st *key);
-int OpensslI2dPkcs8PrivateKeyBio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
-    char *kstr, int klen, pem_password_cb *cb, void *u);
-int OpensslPemWriteBioRsaPrivateKey(BIO *bp, RSA *x, const EVP_CIPHER *enc,
-    unsigned char *kstr, int klen, pem_password_cb *cb, void *u);
-int OpensslPemWriteBioPkcs8PrivateKey(BIO *bp, const EVP_PKEY *x, const EVP_CIPHER *enc,
-    const char *kstr, int klen, pem_password_cb *cb, void *u);
 int OpensslPemWriteBioRsaPublicKey(BIO *bp, RSA *x);
 int OpensslPemWriteBioRsaPubKey(BIO *bp, RSA *x);
 // BIO
@@ -365,8 +359,6 @@ int OpensslI2dSm2CipherText(struct Sm2CipherTextSt *sm2Text, unsigned char **ret
 int OpensslAsn1StringLength(ASN1_OCTET_STRING *p);
 const unsigned char *OpensslAsn1StringGet0Data(ASN1_OCTET_STRING *p);
 
-size_t OpensslEcPoint2Oct(const EC_GROUP *group, const EC_POINT *p, point_conversion_form_t form,
-    unsigned char *buf, size_t len, BN_CTX *ctx);
 OSSL_PARAM_BLD *OpensslOsslParamBldNew(void);
 void OpensslOsslParamBldFree(OSSL_PARAM_BLD *bld);
 OSSL_PARAM *OpensslOsslParamBldToParam(OSSL_PARAM_BLD *bld);
diff --git a/plugin/openssl_plugin/common/src/openssl_adapter.c b/plugin/openssl_plugin/common/src/openssl_adapter.c
index 93c5211..8760c91 100644
--- a/plugin/openssl_plugin/common/src/openssl_adapter.c
+++ b/plugin/openssl_plugin/common/src/openssl_adapter.c
@@ -809,24 +809,6 @@ int OpensslEvpPkeyAssignRsa(EVP_PKEY *pkey, struct rsa_st *key)
     return EVP_PKEY_assign_RSA(pkey, key);
 }
 
-int OpensslI2dPkcs8PrivateKeyBio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
-    char *kstr, int klen, pem_password_cb *cb, void *u)
-{
-    return i2d_PKCS8PrivateKey_bio(bp, x, enc, kstr, klen, cb, u);
-}
-
-int OpensslPemWriteBioPkcs8PrivateKey(BIO *bp, const EVP_PKEY *x, const EVP_CIPHER *enc,
-    const char *kstr, int klen, pem_password_cb *cb, void *u)
-{
-    return PEM_write_bio_PKCS8PrivateKey(bp, x, enc, kstr, klen, cb, u);
-}
-
-int OpensslPemWriteBioRsaPrivateKey(BIO *bp, RSA *x, const EVP_CIPHER *enc,
-    unsigned char *kstr, int klen, pem_password_cb *cb, void *u)
-{
-    return PEM_write_bio_RSAPrivateKey(bp, x, enc, kstr, klen, cb, u);
-}
-
 int OpensslPemWriteBioRsaPublicKey(BIO *bp, RSA *x)
 {
     return PEM_write_bio_RSAPublicKey(bp, x);
@@ -1371,12 +1353,6 @@ const unsigned char *OpensslAsn1StringGet0Data(ASN1_OCTET_STRING *p)
     return ASN1_STRING_get0_data(p);
 }
 
-size_t OpensslEcPoint2Oct(const EC_GROUP *group, const EC_POINT *p, point_conversion_form_t form,
-    unsigned char *buf, size_t len, BN_CTX *ctx)
-{
-    return EC_POINT_point2oct(group, p, form, buf, len, ctx);
-}
-
 OSSL_PARAM_BLD *OpensslOsslParamBldNew(void)
 {
     return OSSL_PARAM_BLD_new();
diff --git a/plugin/openssl_plugin/crypto_operation/signature/src/dsa_openssl.c b/plugin/openssl_plugin/crypto_operation/signature/src/dsa_openssl.c
index 26baef9..2debcae 100644
--- a/plugin/openssl_plugin/crypto_operation/signature/src/dsa_openssl.c
+++ b/plugin/openssl_plugin/crypto_operation/signature/src/dsa_openssl.c
@@ -620,6 +620,7 @@ HcfResult HcfVerifySpiDsaCreate(HcfSignatureParams *params, HcfVerifySpi **retur
     } else {
         HcfResult ret = GetOpensslDigestAlg(params->md, &digestAlg);
         if (ret != HCF_SUCCESS) {
+            HcfFree(impl);
             return HCF_INVALID_PARAMS;
         }
         impl->base.engineInit = EngineDsaVerifyInit;
diff --git a/plugin/openssl_plugin/key/asy_key_generator/src/ecc_asy_key_generator_openssl.c b/plugin/openssl_plugin/key/asy_key_generator/src/ecc_asy_key_generator_openssl.c
index 18e9d7e..4939a42 100644
--- a/plugin/openssl_plugin/key/asy_key_generator/src/ecc_asy_key_generator_openssl.c
+++ b/plugin/openssl_plugin/key/asy_key_generator/src/ecc_asy_key_generator_openssl.c
@@ -1143,7 +1143,7 @@ static HcfResult GetCompressedEccPointEncoded(HcfOpensslEccPubKey *impl, HcfBlob
         LOGE("Failed to get point.");
         return HCF_ERR_CRYPTO_OPERATION;
     }
-    size_t returnDataLen = OpensslEcPoint2Oct(group, point, POINT_CONVERSION_COMPRESSED, NULL, 0, NULL);
+    size_t returnDataLen = EC_POINT_point2oct(group, point, POINT_CONVERSION_COMPRESSED, NULL, 0, NULL);
     if (returnDataLen == 0) {
         LOGE("Failed to get compressed key length.");
         HcfPrintOpensslError();
@@ -1154,7 +1154,7 @@ static HcfResult GetCompressedEccPointEncoded(HcfOpensslEccPubKey *impl, HcfBlob
         LOGE("Failed to allocate memory for returnBlob data.");
         return HCF_ERR_MALLOC;
     }
-    size_t result = OpensslEcPoint2Oct(group, point, POINT_CONVERSION_COMPRESSED,
+    size_t result = EC_POINT_point2oct(group, point, POINT_CONVERSION_COMPRESSED,
         returnData, returnDataLen, NULL);
     if (result != returnDataLen) {
         LOGE("Failed to convert public key to compressed format.");
@@ -1385,7 +1385,7 @@ static HcfResult GetECPriKeyEncodedDer(const HcfPriKey *self, const char *format
         ret = HCF_ERR_CRYPTO_OPERATION;
         goto ERR2;
     }
-    if (OpensslI2dPkcs8PrivateKeyBio(bio, pkey, NULL, NULL, 0, NULL, NULL) != HCF_OPENSSL_SUCCESS) {
+    if (i2d_PKCS8PrivateKey_bio(bio, pkey, NULL, NULL, 0, NULL, NULL) != HCF_OPENSSL_SUCCESS) {
         LOGE("i2d privateKey bio fail.");
         HcfPrintOpensslError();
         ret = HCF_ERR_CRYPTO_OPERATION;
diff --git a/plugin/openssl_plugin/key/asy_key_generator/src/ecc_common_param_spec_generator_openssl.c b/plugin/openssl_plugin/key/asy_key_generator/src/ecc_common_param_spec_generator_openssl.c
index 8246b74..8630d23 100644
--- a/plugin/openssl_plugin/key/asy_key_generator/src/ecc_common_param_spec_generator_openssl.c
+++ b/plugin/openssl_plugin/key/asy_key_generator/src/ecc_common_param_spec_generator_openssl.c
@@ -354,7 +354,7 @@ static HcfResult GetECCPointEncoded(const int32_t formatValue, EC_GROUP *ecGroup
         return HCF_INVALID_PARAMS;
     }
 
-    size_t returnDataLen = OpensslEcPoint2Oct(ecGroup, ecPoint, formatType, NULL, 0, NULL);
+    size_t returnDataLen = EC_POINT_point2oct(ecGroup, ecPoint, formatType, NULL, 0, NULL);
     if (returnDataLen == 0) {
         LOGE("Failed to get encoded point length.");
         HcfPrintOpensslError();
@@ -366,7 +366,7 @@ static HcfResult GetECCPointEncoded(const int32_t formatValue, EC_GROUP *ecGroup
         LOGE("Failed to allocate memory for encoded point data.");
         return HCF_ERR_MALLOC;
     }
-    size_t result = OpensslEcPoint2Oct(ecGroup, ecPoint, formatType, returnData, returnDataLen, NULL);
+    size_t result = EC_POINT_point2oct(ecGroup, ecPoint, formatType, returnData, returnDataLen, NULL);
     if (result != returnDataLen) {
         LOGE("Failed to get ECC point encoding.");
         HcfPrintOpensslError();
diff --git a/plugin/openssl_plugin/key/asy_key_generator/src/rsa_asy_key_generator_openssl.c b/plugin/openssl_plugin/key/asy_key_generator/src/rsa_asy_key_generator_openssl.c
index 87d5322..4ad98a2 100644
--- a/plugin/openssl_plugin/key/asy_key_generator/src/rsa_asy_key_generator_openssl.c
+++ b/plugin/openssl_plugin/key/asy_key_generator/src/rsa_asy_key_generator_openssl.c
@@ -420,7 +420,7 @@ static HcfResult EncodePriKeyToPKCS8(RSA *rsa, HcfBlob *returnBlob)
         ret = HCF_ERR_CRYPTO_OPERATION;
         goto ERR2;
     }
-    if (OpensslI2dPkcs8PrivateKeyBio(bio, pKey, NULL, NULL, 0, NULL, NULL) != HCF_OPENSSL_SUCCESS) {
+    if (i2d_PKCS8PrivateKey_bio(bio, pKey, NULL, NULL, 0, NULL, NULL) != HCF_OPENSSL_SUCCESS) {
         LOGD("[error] i2b_PrivateKey_bio fail.");
         HcfPrintOpensslError();
         ret = HCF_ERR_CRYPTO_OPERATION;
@@ -585,7 +585,7 @@ static HcfResult GetPrikeyPkcs8Pem(EVP_PKEY *pkey, char **returnString)
         HcfPrintOpensslError();
         return HCF_ERR_CRYPTO_OPERATION;
     }
-    int ret = OpensslPemWriteBioPkcs8PrivateKey(bio, pkey, NULL, NULL, 0, NULL, NULL);
+    int ret = PEM_write_bio_PKCS8PrivateKey(bio, pkey, NULL, NULL, 0, NULL, NULL);
     if (ret != HCF_OPENSSL_SUCCESS) {
         LOGE("OpensslPemWriteBioPkcs8PrivateKey fail.");
         HcfPrintOpensslError();
@@ -609,7 +609,7 @@ static HcfResult GetPrikeyPkcs1Pem(RSA *sk, char **returnString)
         HcfPrintOpensslError();
         return HCF_ERR_CRYPTO_OPERATION;
     }
-    int ret = OpensslPemWriteBioRsaPrivateKey(bio, sk, NULL, NULL, 0, NULL, NULL);
+    int ret = PEM_write_bio_RSAPrivateKey(bio, sk, NULL, NULL, 0, NULL, NULL);
     if (ret != HCF_OPENSSL_SUCCESS) {
         LOGE("OpensslPemWriteBioRsaPrivateKey fail.");
         HcfPrintOpensslError();
diff --git a/test/unittest/src/openssl_adapter_mock.c b/test/unittest/src/openssl_adapter_mock.c
index c97e21f..10e8ed9 100644
--- a/test/unittest/src/openssl_adapter_mock.c
+++ b/test/unittest/src/openssl_adapter_mock.c
@@ -1212,12 +1212,6 @@ int OpensslEvpPkeyAssignRsa(EVP_PKEY *pkey, struct rsa_st *key)
     return EVP_PKEY_assign_RSA(pkey, key);
 }
 
-int OpensslI2dPkcs8PrivateKeyBio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
-    char *kstr, int klen, pem_password_cb *cb, void *u)
-{
-    return i2d_PKCS8PrivateKey_bio(bp, x, enc, kstr, klen, cb, u);
-}
-
 BIO *OpensslBioNew(const BIO_METHOD *type)
 {
     return BIO_new(type);
@@ -1868,15 +1862,6 @@ int OpensslDhSet0Key(DH *dh, BIGNUM *pubKey, BIGNUM *privKey)
     return DH_set0_key(dh, pubKey, privKey);
 }
 
-size_t OpensslEcPoint2Oct(const EC_GROUP *group, const EC_POINT *p, point_conversion_form_t form,
-                          unsigned char *buf, size_t len, BN_CTX *ctx)
-{
-    if (IsNeedMock()) {
-        return -1;
-    }
-    return EC_POINT_point2oct(group, p, form, buf, len, ctx);
-}
-
 OSSL_PARAM_BLD *OpensslOsslParamBldNew(void)
 {
     if (IsNeedMock()) {