将数据库中的文本密码转换为哈希密码？

Question

In my database I have over 600 users. The passwords were previously stored as plain text (slap on hand, I know). Anyways, I have changed my code to store STA1 hashed passwords, but I need to convert the existing passwords in my database so each user doesn't need to go in and modify their account.

Any help?

Answer 1

First, backup your database with mysqldump. For example

bash#> mysqldump -u username -p nameoftable >file_to_write_to.sql

Also, make sure that your password field is 40 characters long. If not, execute this SQL command:

alter table nameoftable modify column password varchar(40);

and then this to change the passwords:

update nameoftable set password=sha1(password) where 1;