diff --git a/interfaces/innerkits/cert_manager_standard/main/include/cm_type.h b/interfaces/innerkits/cert_manager_standard/main/include/cm_type.h
index 1979dbdae866527d4e6781cff038c70f00de3f9f..325a13f6d24fd560bc970c43e0c1c9faa70c4cb0 100644
--- a/interfaces/innerkits/cert_manager_standard/main/include/cm_type.h
+++ b/interfaces/innerkits/cert_manager_standard/main/include/cm_type.h
@@ -54,7 +54,7 @@ extern "C" {
 #define MAX_LEN_APP_CERT 20480
 #define MAX_LEN_APP_CERT_PASSWD 33   /* 32位密码 + 1位结束符 */
 
-#define CERT_MAX_PATH_LEN       256
+#define CERT_MAX_PATH_LEN       512
 #define CM_ARRAY_SIZE(arr) ((sizeof(arr)) / (sizeof((arr)[0])))
 
 /*
diff --git a/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_key_operation.c b/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_key_operation.c
index 3739183b1a449f5553aef35c9cc4d17621337fc5..e7365440ba4353c2b5cc913c44dd3a2aac494773 100755
--- a/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_key_operation.c
+++ b/services/cert_manager_standard/cert_manager_engine/main/core/src/cert_manager_key_operation.c
@@ -15,6 +15,7 @@
 
 #include "cert_manager_key_operation.h"
 
+#include "cert_manager_crypto_operation.h"
 #include "cert_manager_mem.h"
 #include "cert_manager_session_mgr.h"
 #include "cm_log.h"
@@ -55,6 +56,7 @@ static struct PropertyToHuks g_cmDigestProperty[] = {
 
 #define INVALID_PROPERTY_VALUE 0xFFFF
 #define DEFAULT_LEN_USED_FOR_MALLOC 1024
+#define MAX_DIGEST_LEN 64
 
 static int32_t ConstructParamSet(const struct HksParam *params, uint32_t paramCount, struct HksParamSet **outParamSet)
 {
@@ -194,7 +196,12 @@ int32_t CmKeyOpImportKey(const struct CmBlob *alias, const struct CmKeyPropertie
         return CMR_ERROR_KEY_OPERATION_FAILED;
     }
 
-    struct HksBlob keyAlias = { alias->size, alias->data };
+    uint8_t tempBuf[MAX_DIGEST_LEN] = { 0 };
+    struct CmBlob nameDigest = { sizeof(tempBuf), tempBuf };
+    struct CmBlob certName = { alias->size, alias->data };
+    (void)CmGetHash(&certName, &nameDigest);
+
+    struct HksBlob keyAlias = { nameDigest.size, nameDigest.data };
     struct HksBlob key = { keyPair->size, keyPair->data };
     ret = HksImportKey(&keyAlias, paramSet, &key);
     HksFreeParamSet(&paramSet);