diff --git a/bundle.json b/bundle.json
index d57466cc2038809d9fe813e6eb6043c837309714..8239a701dcc7f59656ed3b0c9377f4b6c42b1ff3 100644
--- a/bundle.json
+++ b/bundle.json
@@ -34,7 +34,6 @@
           "access_token",
           "bundle_framework",
           "common_event_service",
-          "crypto_framework",
           "c_utils",
           "eventhandler",
           "hisysevent_native",
@@ -47,7 +46,7 @@
           "samgr"
         ],
         "third_party": [
-          "thirdparty_openssl"
+          "openssl"
         ]
       },
       "build": {
diff --git a/services/cert_manager_standard/cert_manager_engine/main/core/BUILD.gn b/services/cert_manager_standard/cert_manager_engine/main/core/BUILD.gn
index 5fcbd1f88b3e8d514a450025b56a11ed67a0749d..bd4bf8e49542b5ff6d206d997ffd1ab9c8614418 100644
--- a/services/cert_manager_standard/cert_manager_engine/main/core/BUILD.gn
+++ b/services/cert_manager_standard/cert_manager_engine/main/core/BUILD.gn
@@ -64,7 +64,6 @@ ohos_static_library("cert_manager_engine_core_standard") {
   ]
 
   deps = [
-    "../../../../../../crypto_framework/frameworks:crypto_framework_lib",
     "../../../../../frameworks/cert_manager_standard/main/common:libcert_manager_common_standard_static",
     "../../../../../frameworks/cert_manager_standard/main/os_dependency:libcert_manager_log_mem_static",
     "//third_party/openssl:libcrypto_shared",
diff --git a/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_crypto_operation.c b/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_crypto_operation.c
index 29ccee3e81e1451f777417ab7b4efcda15054bd7..c4e23c989674d8748560398bafc3189f09b706a8 100644
--- a/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_crypto_operation.c
+++ b/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_crypto_operation.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -15,88 +15,50 @@
 
 #include "cert_manager_crypto_operation.h"
 
+#include <openssl/evp.h>
+#include <openssl/rand.h>
+
 #include "securec.h"
 
 #include "cm_log.h"
 #include "cm_type.h"
 
-#include "blob.h"
-#include "md.h"
-#include "rand.h"
+#define DIGEST_SHA256_LEN 32
 
 int32_t CmGetRandom(struct CmBlob *random)
 {
-    HcfRand *randObj = NULL;
-    struct HcfBlob randomBlob = { NULL, 0 };
-
-    int32_t ret = CMR_ERROR_KEY_OPERATION_FAILED;
-    do {
-        int32_t retHcf = (int32_t)HcfRandCreate(&randObj);
-        if (retHcf != HCF_SUCCESS) {
-            CM_LOG_E("creat random obj failed, ret = %d", retHcf);
-            break;
-        }
-
-        retHcf = (int32_t)randObj->generateRandom(randObj, random->size, &randomBlob);
-        if (retHcf != HCF_SUCCESS) {
-            CM_LOG_E("generate random value failed, ret = %d", retHcf);
-            break;
-        }
-
-        if (memcpy_s(random->data, random->size, randomBlob.data, randomBlob.len) != EOK) {
-            CM_LOG_E("copy random value failed");
-            break;
-        }
-        random->size = randomBlob.len;
-        ret = CM_SUCCESS;
-    } while (0);
+    if (CmCheckBlob(random) != CM_SUCCESS) {
+        return CMR_ERROR_INVALID_ARGUMENT;
+    }
 
-    HcfBlobDataClearAndFree(&randomBlob);
-    HcfObjDestroy(randObj);
+    int ret = RAND_bytes(random->data, random->size);
+    if (ret <= 0) {
+        CM_LOG_E("Get random failed");
+        return CMR_ERROR_KEY_OPERATION_FAILED;
+    }
 
-    return ret;
+    return CM_SUCCESS;
 }
 
 int32_t CmGetHash(const struct CmBlob *inData, struct CmBlob *hash)
 {
-    HcfMd *mdObj = NULL;
-    struct HcfBlob outBlob = { NULL, 0 };
-
-    int32_t ret = CMR_ERROR_KEY_OPERATION_FAILED;
-    do {
-        int32_t retHcf = (int32_t)HcfMdCreate("SHA256", &mdObj);
-        if (retHcf != HCF_SUCCESS) {
-            CM_LOG_E("creat hash obj failed, ret = %d", retHcf);
-            break;
-        }
-
-        HcfBlob inBlob = { .data = inData->data, .len = inData->size };
-        retHcf = mdObj->update(mdObj, &inBlob);
-        if (retHcf != HCF_SUCCESS) {
-            CM_LOG_E("hash update failed, ret = %d", retHcf);
-            break;
-        }
-        retHcf = mdObj->doFinal(mdObj, &outBlob);
-        if (retHcf != HCF_SUCCESS) {
-            CM_LOG_E("hash final failed, ret = %d", retHcf);
-            break;
-        }
-
-        if (hash->size < outBlob.len) {
-            CM_LOG_E("hash input size[%u] too small", hash->size);
-            ret = CMR_ERROR_BUFFER_TOO_SMALL;
-            break;
-        }
-        if (memcpy_s(hash->data, hash->size, outBlob.data, outBlob.len) != EOK) {
-            CM_LOG_E("copy hash value failed");
-            break;
-        }
-        hash->size = outBlob.len;
-        ret = CM_SUCCESS;
-    } while (0);
-
-    HcfBlobDataClearAndFree(&outBlob);
-    HcfObjDestroy(mdObj);
-    return ret;
+    if ((CmCheckBlob(inData) != CM_SUCCESS) || (CmCheckBlob(hash) != CM_SUCCESS) ||
+        (hash->size < DIGEST_SHA256_LEN)) {
+        CM_LOG_E("invalid input args");
+        return CMR_ERROR_INVALID_ARGUMENT;
+    }
+
+    const EVP_MD *opensslAlg = EVP_sha256();
+    if (opensslAlg == NULL) {
+        CM_LOG_E("get openssl alg failed");
+        return CMR_ERROR_KEY_OPERATION_FAILED;
+    }
+
+    int32_t ret = EVP_Digest(inData->data, inData->size, hash->data, &hash->size, opensslAlg, NULL);
+    if (ret <= 0) {
+        CM_LOG_E("digest failed");
+        return CMR_ERROR_KEY_OPERATION_FAILED;
+    }
+    return CM_SUCCESS;
 }
 
diff --git a/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_uri.c b/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_uri.c
index 6e1e9cc4d9e93c9c7a81c441ffafb2d5005d0bcf..4694cde6ea2df697efbb56f9f319332b26e5eded 100644
--- a/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_uri.c
+++ b/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_uri.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at