diff --git a/tools/aes_encrypt.py b/tools/aes_encrypt.py
index 7cc662e..534138c 100644
--- a/tools/aes_encrypt.py
+++ b/tools/aes_encrypt.py
@@ -12,7 +12,7 @@ pycryptdemo限制 同一个aes加密对象不能即加密又解密 所以当加
 try:
     from Crypto.Cipher import AES
 except:
-    print("检测到还未安装 pycryptdemo 请按照md的方法安装")
+    print("检测到还未安装 pycryptdome 请按照md的方法安装")
     exit(0)
 from binascii import b2a_hex, a2b_hex
 from base64 import b64encode, b64decode
diff --git a/tools/encrypt_symmetric.py b/tools/encrypt_symmetric.py
index feea8e6..41540d7 100644
--- a/tools/encrypt_symmetric.py
+++ b/tools/encrypt_symmetric.py
@@ -18,7 +18,7 @@ pycryptdemo限制 同一个aes加密对象不能即加密又解密 所以当加
 try:
     from Crypto.Cipher import AES, DES, DES3
 except:
-    print("检测到还未安装 pycryptdemo 请按照md的方法安装")
+    print("检测到还未安装 pycryptdome 请按照md的方法安装")
     exit(0)
 from binascii import b2a_hex, a2b_hex
 from base64 import b64encode, b64decode
diff --git a/tools/rsa_encrypt.py b/tools/rsa_encrypt.py
index 54ccc1f..89bb824 100644
--- a/tools/rsa_encrypt.py
+++ b/tools/rsa_encrypt.py
@@ -8,7 +8,7 @@ try:
     from Crypto.PublicKey.RSA import importKey, construct
     from Crypto.Cipher import PKCS1_v1_5
 except:
-    print("检测到还未安装 pycryptdemo 请按照md的方法安装")
+    print("检测到还未安装 pycryptdome 请按照md的方法安装")
     exit(0)
 from base64 import b64encode
 
@@ -29,8 +29,21 @@ class RSA_Encrypt:
         return pubkey
 
     def encrypt(self, data, b64=False):
+        data = data.encode('utf-8')
+        length = len(data)
+        default_length = 117
         pub_key = importKey(self.key)
         cipher = PKCS1_v1_5.new(pub_key)
-        rsa_text = cipher.encrypt(data.encode("utf8"))
-        rsa_text = b64encode(rsa_text).decode() if b64 else rsa_text.hex()
-        return rsa_text
+        if length < default_length:
+            rsa_text = cipher.encrypt(data)
+            return b64encode(rsa_text).decode() if b64 else rsa_text.hex()
+        offset = 0
+        res = []
+        while length - offset > 0:
+            if length - offset > default_length:
+                res.append(cipher.encrypt(data[offset:offset + default_length]))
+            else:
+                res.append(cipher.encrypt(data[offset:]))
+            offset += default_length
+        byte_data = b''.join(res)
+        return b64encode(byte_data).decode() if b64 else byte_data.hex()