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Password protection in ASP. NET, use of MD5 and SHA1 Algorithms

Source: Internet
Author: User
Tags password protection
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Your homepage or website you manage has various passwords that need to be protected. There are many security risks when you directly store passwords in databases or files. Therefore, encrypted password storage is the most common practice. Encryption in ASP. NET is very easy .. . Net sdk provides the CookieAuthentication class. The HashPasswordForStoringInConfigFile method can directly use the MD5 and SHA1 algorithms. Example: <br>
File: encrypting. aspx <br>
<% @ Page language = "c #" Codebehind = "encrypting. cs" AutoEventWireup = "false" Inherits = "encrypting. encrypting" %> <br>
<Html> <Meta name = "GENERATOR" Content = "Microsoft Visual Studio 7.0"> <br>
<Meta name = "CODE_LANGUAGE" Content = "C #"> <Body> <br>
<Br>
<Form method = "post" runat = "server"> <br>
<P> </p> <br>
<P> <br>
<Asp: TextBox id = TextBox1 runat = "server"> </asp: TextBox> <br>
<Asp: Button id = Button1 runat = "server" Text = "encrypting"> </asp: Button> </p> <br>
<P> Encrypting Password (MD5): <br>
<Asp: Label id = MD5 runat = "server"> </asp: Label> </p> <br>
</Form> <br>
<Br>
</Body> <Br>
File: encrypting. cs <br>
<Br>
Namespace encrypting <br>
{<Br>
Using System; <br>
Using System. Collections; <br>
Using System. ComponentModel; <br>
Using System. Data; <br>
Using System. Drawing; <br>
Using System. Web; <br>
Using System. Web. SessionState; <br>
Using System. Web. UI; <br>
Using System. Web. UI. WebControls; <br>
Using System. Web. UI. HtmlControls; <br>
Using System. Web. Security; <br>
/// <Summary> <br>
/// Summary description for encrypting. <br>
/// </Summary> <br>
Public class encrypting: System. Web. UI. Page <br>
{<Br>
Protected System. Web. UI. WebControls. Label MD5; <br>
Protected System. Web. UI. WebControls. Button Button1; <br>
Protected System. Web. UI. WebControls. TextBox TextBox1; <br>
<Br>
Public encrypting () <br>
{<Br>
Page. Init + = new System. EventHandler (Page_Init); <br>
} <Br>
Protected void Page_Load (object sender, EventArgs e) <br>
{<Br>
If (! IsPostBack) <br>
{<Br>
// <Br>
// Evals true first time browser hits the page <br>
// <Br>
} <Br>
} <Br>
Protected void Page_Init (object sender, EventArgs e) <br>
{<Br>
// <Br>
// CODEGEN: This call is required by the ASP + Windows Form Designer. <br>
// <Br>
InitializeComponent (); <br>
} <Br>
/// <Summary> <br>
/// Required method for Designer support-do not modify <br>
/// The contents of this method with the code editor. <br>
/// </Summary> <br>
Private void InitializeComponent () <br>
{<Br>
Button1.Click + = new System. EventHandler (this. button#click); <br>
This. Load + = new System. EventHandler (this. Page_Load); <br>
} <Br>
Public void button#click (object sender, System. EventArgs e) <br>
{<Br>
MD5.Text = CookieAuthentication. HashPasswordForStoringInConfigFile (TextBox1.Text, "MD5"); <br>
// SHA1 use CookieAuthentication. HashPasswordForStoringInConfigFile (TextBox1.Text, "SHA1"); <br>
} <Br>
} <Br>
} <Br>
Note: The namespace of CookieAuthentication class is System. Web. Security.

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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