diff --git a/CryptoArchitectureKit/crypto_architecture_kit.h b/CryptoArchitectureKit/crypto_architecture_kit.h
index 4580a750627cf34ea21bfd3c69784b26077e5685..7976020629cfad89cf9a7f2a9e5c343f478a1dc0 100644
--- a/CryptoArchitectureKit/crypto_architecture_kit.h
+++ b/CryptoArchitectureKit/crypto_architecture_kit.h
@@ -19,7 +19,6 @@
  *
  * @brief Provides an entry to the crypto header files for you to reference.
  *
- * @syscap SystemCapability.Security.CryptoFramework
  * @since 12
  */
 
@@ -48,4 +47,4 @@
 /** @} */
 
 
-#endif /* CRYPTO_ARCHITECTURE_KIT_H*/
\ No newline at end of file
+#endif /* CRYPTO_ARCHITECTURE_KIT_H */
\ No newline at end of file
diff --git a/CryptoArchitectureKit/crypto_digest.h b/CryptoArchitectureKit/crypto_digest.h
index 52227bfe81985db9be558baf6b106b537d809ea7..bac24951a8b1c1fdc48364749b839435dd28ebcc 100644
--- a/CryptoArchitectureKit/crypto_digest.h
+++ b/CryptoArchitectureKit/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);