diff --git a/frameworks/native/src/signature.c b/frameworks/native/src/signature.c
index 105281c589864af5bb61956b6370f1290ea93d14..0168a17ba90b81dab0499c86aab751c8796136e1 100644
--- a/frameworks/native/src/signature.c
+++ b/frameworks/native/src/signature.c
@@ -354,20 +354,20 @@ struct OH_CryptoEccSignatureSpec {
 };
 
 
-OH_Crypto_ErrCode OH_CryptoEccSignatureSpec_Create(Crypto_DataBlob *EccSignature, OH_CryptoEccSignatureSpec **spec)
+OH_Crypto_ErrCode OH_CryptoEccSignatureSpec_Create(Crypto_DataBlob *eccSignature, OH_CryptoEccSignatureSpec **spec)
 {
     if (spec == NULL) {
         return CRYPTO_PARAMETER_CHECK_FAILED;
     }
     HcfResult ret = HCF_INVALID_PARAMS;
-    if (EccSignature == NULL) {
+    if (eccSignature == NULL) {
         *spec = (OH_CryptoEccSignatureSpec *)HcfMalloc(sizeof(OH_CryptoEccSignatureSpec), 0);
         if (*spec == NULL) {
             return CRYPTO_MEMORY_ERROR;
         }
         return GetOhCryptoErrCodeNew(HCF_SUCCESS);
     }
-    ret = HcfGenEcSignatureSpecByData((HcfBlob *)EccSignature, (Sm2EcSignatureDataSpec **)spec);
+    ret = HcfGenEcSignatureSpecByData((HcfBlob *)eccSignature, (Sm2EcSignatureDataSpec **)spec);
     return GetOhCryptoErrCodeNew(ret);
 }
 
diff --git a/interfaces/kits/native/include/crypto_digest.h b/interfaces/kits/native/include/crypto_digest.h
index 4d44eddda768a68f49e5060a080bed928dd675c3..1af61159d717dfe12e8161b076556e38be7ef105 100644
--- a/interfaces/kits/native/include/crypto_digest.h
+++ b/interfaces/kits/native/include/crypto_digest.h
@@ -97,11 +97,8 @@ OH_Crypto_ErrCode OH_CryptoDigest_Final(OH_CryptoDigest *ctx, Crypto_DataBlob *o
  * @brief Get the digest length of the digest context.
  *
  * @param ctx Indicates the digest context.
- * @return {@link OH_Crypto_ErrCode#CRYPTO_SUCCESS} 0 - If the operation is successful.
- *         {@link OH_Crypto_ErrCode#CRYPTO_INVALID_PARAMS} 401 - If parameter is invalid.
- *         {@link OH_Crypto_ErrCode#CRYPTO_NOT_SUPPORTED} 801 - If the operation is not supported.
- *         {@link OH_Crypto_ErrCode#CRYPTO_MEMORY_ERROR} 17620001 - If memory operation failed.
- *         {@link OH_Crypto_ErrCode#CRYPTO_OPERTION_ERROR} 17630001 - If crypto opertion failed.
+ * @return Return the digest length.
+ *         If the input parameter ctx is NULL, 401 is returned, in other failure scenarios, 0 is returned.
  * @since 12
  */
 uint32_t OH_CryptoDigest_GetLength(OH_CryptoDigest *ctx);
@@ -119,11 +116,6 @@ const char *OH_CryptoDigest_GetAlgoName(OH_CryptoDigest *ctx);
  * @brief Destroy the digest context.
  *
  * @param ctx Indicates the digest context.
- * @return {@link OH_Crypto_ErrCode#CRYPTO_SUCCESS} 0 - If the operation is successful.
- *         {@link OH_Crypto_ErrCode#CRYPTO_INVALID_PARAMS} 401 - If parameter is invalid.
- *         {@link OH_Crypto_ErrCode#CRYPTO_NOT_SUPPORTED} 801 - If the operation is not supported.
- *         {@link OH_Crypto_ErrCode#CRYPTO_MEMORY_ERROR} 17620001 - If memory operation failed.
- *         {@link OH_Crypto_ErrCode#CRYPTO_OPERTION_ERROR} 17630001 - If crypto opertion failed.
  * @since 12
  */
 void OH_DigestCrypto_Destroy(OH_CryptoDigest *ctx);
diff --git a/interfaces/kits/native/include/crypto_signature.h b/interfaces/kits/native/include/crypto_signature.h
index 7982b278f2c9dc5dc9d7347cf010e4f9a27d4d40..904488648d32fe387da5a8fa36231452dd9e2d3c 100644
--- a/interfaces/kits/native/include/crypto_signature.h
+++ b/interfaces/kits/native/include/crypto_signature.h
@@ -323,7 +323,7 @@ typedef struct OH_CryptoEccSignatureSpec OH_CryptoEccSignatureSpec;
 /**
  * @brief Creates the ECC signature spec, also support SM2 signature.
  *
- * @param EccSignature Indicates the ECC signature in DER format, if EccSignature parameter is NULL,
+ * @param eccSignature Indicates the ECC signature in DER format, if eccSignature parameter is NULL,
  * an empty ECC signature spec will be created.
  * @param spec Indicates the output ECC signature spec.
  * @return {@link OH_Crypto_ErrCode#CRYPTO_SUCCESS} 0 - If the operation is successful.
@@ -333,7 +333,7 @@ typedef struct OH_CryptoEccSignatureSpec OH_CryptoEccSignatureSpec;
  *         {@link OH_Crypto_ErrCode#CRYPTO_OPERTION_ERROR} 17630001 - If crypto operation failed.
  * @since 20
  */
-OH_Crypto_ErrCode OH_CryptoEccSignatureSpec_Create(Crypto_DataBlob *EccSignature,
+OH_Crypto_ErrCode OH_CryptoEccSignatureSpec_Create(Crypto_DataBlob *eccSignature,
     OH_CryptoEccSignatureSpec **spec);
 
 /**