hash code

例句：

1. 1. The server uses a hash function to ensure data integrity.
   服务器使用哈希函数来确保数据完整性。
2. 2.The password is stored as a hash code in the database.
   密码以哈希码的形式存储在数据库中。
3. 3. The algorithm used for this task is based on a well-known hash function.
   用于此任务的算法基于一个著名的哈希函数。