修改签名验签流程

tests/sign_verify.py

@@ -1,26 +1,20 @@
 import ctypes
 
-# 加载共享库
-lib = ctypes.CDLL('libgmsign.so')
-
-# 定义函数的参数和返回类型
-# 签名函数签名如下：
-# int sign(char *key_value, char *hash_value, char *public_key)
-lib.sign.argtypes = [ctypes.c_char_p, ctypes.c_char_p, ctypes.c_char_p]
-lib.sign.restype = ctypes.c_int
-
-# 验签函数签名如下：
-# int sign_verify(char *content, char *sign_value, char *public_key)
-lib.sign_verify.argtypes = [ctypes.c_char_p, ctypes.c_char_p, ctypes.c_char_p]
-lib.sign_verify.restype = ctypes.c_int
-
-
 def get_sign(raw_data: str) -> (str, str):
     """
     获取签名值
     :param raw_data: 原文字符串
     :return: tuple(str,str):(签名值base64字符串，公钥base64字符串)
     """
+    # 加载共享库
+    lib = ctypes.CDLL('libgmsign.so')
+
+    # 定义函数的参数和返回类型
+    # 签名函数签名如下：
+    # int sign(char *key_value, char *hash_value, char *public_key)
+    lib.sign.argtypes = [ctypes.c_char_p, ctypes.c_char_p, ctypes.c_char_p]
+    lib.sign.restype = ctypes.c_int
+
     key_value = raw_data.replace(" ", "").encode('utf-8')
     hash_value = ctypes.create_string_buffer(256)  # 设置签名值输出缓冲区大小为 256 字节
     public_key = ctypes.create_string_buffer(256)  # 设置公钥输出缓冲区大小为 256 字节
@@ -41,6 +35,13 @@ def verify_sign(raw_data: str, sign_data: str, public_key: str) -> bool:
     :param public_key: 公钥base64字符串
     :return:
     """
+    # 加载共享库
+    lib = ctypes.CDLL('libgmsign.so')
+    # 验签函数签名如下：
+    # int sign_verify(char *content, char *sign_value, char *public_key)
+    lib.sign_verify.argtypes = [ctypes.c_char_p, ctypes.c_char_p, ctypes.c_char_p]
+    lib.sign_verify.restype = ctypes.c_int
+
     content = raw_data.replace(" ", "").encode('utf-8')
     sign_value = sign_data.encode('utf-8')
     public_key = public_key.encode('utf-8')