Is a wife entitled to keep her email password secret from her husband, and is a husband permitted to request it from her?

A wife has the right to keep her password private, and her husband does not have the right to demand it from her. However, she should not arouse suspicions about herself. A husband has the right to ask his wife about her email communications because he is responsible for her and is her guardian, and he has the right to define her relationships in a way that preserves and protects her.