Question

我有一个确定密码强度的基本工具（不是我的代码）。在点击TextBox时，我修改了代码，以便从textBox1（button1）检索我们正在测试的密码。但是，标签（结果）仅显示弱或无结果。小麦我在这里做错了吗？如何使标签反映Enum函数PasswordScore中的结果？

您是否有更简单的方法来确定您使用的密码强度？

public partial class Form7 : Form
{
    public Form7()
    {
        InitializeComponent();
    }

    public enum PasswordScore
    {
        Blank = 0,
        VeryWeak = 1,
        Weak = 2,
        Medium = 3,
        Strong = 4,
        VeryStrong = 5
    }

    public static PasswordScore CheckStrength(string password)
    {
        int score = 0;
        if (password.Length == 0)
            return PasswordScore.Blank;
        if (password.Length < 4)
            return PasswordScore.VeryWeak;
        if (password.Length >= 8)
            score++;
        if (password.Length >= 12)
            score++;
        if (Regex.Match(password, @"/\d+/", RegexOptions.ECMAScript).Success)
            score++;
        if (Regex.Match(password, @"/[a-z]/", RegexOptions.ECMAScript).Success &&
            Regex.Match(password, @"/[A-Z]/", RegexOptions.ECMAScript).Success)
            score++;
        if (Regex.Match(password, @"/.[!,@,#,$,%,^,&,*,?,_,~,-,£,(,)]/", RegexOptions.ECMAScript).Success)
            score++;

        return (PasswordScore)score;
    }

    public void button1_Click(object sender, EventArgs e)
    {
        String password = textBox1.Text; // Substitute with the user input string
        PasswordScore passwordStrengthScore = Form7.CheckStrength(password);
        switch (passwordStrengthScore)
        {
            case PasswordScore.Blank:
            case PasswordScore.VeryWeak:
            case PasswordScore.Weak:
                // Show an error message to the user
                break;
            case PasswordScore.Medium:
            case PasswordScore.Strong:
            case PasswordScore.VeryStrong:
                // Password deemed strong enough, allow user to be added to database etc
                break;

        if (passwordStrengthScore == PasswordScore.Blank) { Result.Text = "Blank"; }
        if (passwordStrengthScore == PasswordScore.VeryWeak) { Result.Text = "Very Weak - FAIL"; }
        if (passwordStrengthScore == PasswordScore.Weak) { Result.Text = "Weak - FAIL"; }
        if (passwordStrengthScore == PasswordScore.Medium) { Result.Text = "Medium - Compliant"; }
        if (passwordStrengthScore == PasswordScore.Strong) { Result.Text = "Strong - Compliant"; }
        if (passwordStrengthScore == PasswordScore.VeryStrong) { Result.Text = "Very Strong - Compliant"; }

        }

    }
}

Answer 1

结果总是很弱或没有，因为你的案例中的正则表达式总是失败。

请尝试修改您的正则表达式。对于例如：

if (Regex.Match(password, @"/\d+/", RegexOptions.ECMAScript).Success)

修改为

if (Regex.Match(password, @"\d", RegexOptions.ECMAScript).Success)

和

Regex.Match(password, @"/[a-z]/", RegexOptions.ECMAScript).Success

修改为

Regex.Match(password, @"[a-z]", RegexOptions.ECMAScript).Success

Answer 2

这是工作代码。

public partial class Form7 : Form
{
    public Form7()
    {
        InitializeComponent();
    }

    public enum PasswordScore
    {
        Blank = 0,
        VeryWeak = 1,
        Weak = 2,
        Medium = 3,
        Strong = 4,
        VeryStrong = 5
    }
    public static PasswordScore CheckStrength(string password)
    {
        int score = 0;

        if (password.Length == 0)
            return PasswordScore.Blank;
        if (password.Length < 4)
            return PasswordScore.VeryWeak;

        if (password.Length >= 8)
            score++;
        if (password.Length >= 12)
            score++;
        if (Regex.Match(password, @"\d", RegexOptions.ECMAScript).Success)
            score++;
        if (Regex.Match(password, @"[a-z]", RegexOptions.ECMAScript).Success &&
          Regex.Match(password, @"/[A-Z]/", RegexOptions.ECMAScript).Success)
            score++;
        if (Regex.Match(password, @"/.[!,@,#,$,%,^,&,*,?,_,~,-,£,(,)]/", RegexOptions.ECMAScript).Success)
            score++;

        return (PasswordScore)score;
    }


    public void button1_Click(object sender, EventArgs e)
    {

        String password = textBox1.Text; // Substitute with the user input string
        PasswordScore passwordStrengthScore = Form7.CheckStrength(password);

        switch (passwordStrengthScore)
        {
            case PasswordScore.Blank:
            case PasswordScore.VeryWeak:
            case PasswordScore.Weak:
                // Show an error message to the user
                break;
            case PasswordScore.Medium:
            case PasswordScore.Strong:
            case PasswordScore.VeryStrong:
                // Password deemed strong enough, allow user to be added to database etc
                break;
        }

        if (passwordStrengthScore == PasswordScore.Blank) { Result.Text = "Blank"; }
        if (passwordStrengthScore == PasswordScore.VeryWeak) { Result.Text = "Very Weak - FAIL"; }
        if (passwordStrengthScore == PasswordScore.Weak) { Result.Text = "Weak - FAIL"; }
        if (passwordStrengthScore == PasswordScore.Medium) { Result.Text = "Medium - Compliant"; }
        if (passwordStrengthScore == PasswordScore.Strong) { Result.Text = "Strong - Compliant"; }
        if (passwordStrengthScore == PasswordScore.VeryStrong) { Result.Text = "Very Strong - Compliant"; }



    }

如何从这个Enum Switch功能中检索我的结果？

2 个答案: