diff --git a/CryptoArchitectureKit/crypto_rand.h b/CryptoArchitectureKit/crypto_rand.h
index 1e9a4f8e017aaaae3d68c722704b4ef00bfb1acd..a3b261c830acf65f095a5014c3f79836baeec26a 100644
--- a/CryptoArchitectureKit/crypto_rand.h
+++ b/CryptoArchitectureKit/crypto_rand.h
@@ -98,6 +98,19 @@ const char *OH_CryptoRand_GetAlgoName(OH_CryptoRand *ctx);
  */
 OH_Crypto_ErrCode OH_CryptoRand_SetSeed(OH_CryptoRand *ctx, Crypto_DataBlob *seed);
 
+/**
+ * @brief Enables the hardware entropy source.
+ *
+ * @param ctx Indicates the random number generator context.
+ * @return {@link OH_Crypto_ErrCode#CRYPTO_SUCCESS} 0 - If the operation is successful.
+ *         {@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_PARAMETER_CHECK_FAILED} 17620003 - If parameter check failed.
+ *         {@link OH_Crypto_ErrCode#CRYPTO_OPERTION_ERROR} 17630001 - If crypto operation failed.
+ * @since 21
+ */
+OH_Crypto_ErrCode OH_CryptoRand_EnableHardwareEntropy(OH_CryptoRand *ctx);
+
 /**
  * @brief Destroys the random number generator context.
  *
diff --git a/CryptoArchitectureKit/libcrypto.ndk.json b/CryptoArchitectureKit/libcrypto.ndk.json
index 76e0508480c6fc27ff9d2e82c7aa4d76033b36a4..81eb1be27b4f6cb6b840eb1f90550195ca84c7da 100644
--- a/CryptoArchitectureKit/libcrypto.ndk.json
+++ b/CryptoArchitectureKit/libcrypto.ndk.json
@@ -367,6 +367,10 @@
         "first_introduced": "20",
         "name": "OH_CryptoRand_SetSeed"
     },
+    {
+        "first_introduced": "21",
+        "name": "OH_CryptoRand_EnableHardwareEntropy"
+    },
     {
         "first_introduced": "20",
         "name": "OH_CryptoRand_Destroy"