Question

Encrypt password

Asked by: nguyenn

Hello Experts,

In the classic ASP, could anyone give me a sample to encrypt/decryp password, using 64 based text?

thanks in advance

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Asked On
2004-06-15 at 15:16:26ID21026655
Tags

asp

,

password

,

encrypt

Topic

Active Server Pages (ASP)

Participating Experts
5
Points
50
Comments
10

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Answers

 

by: nguyennPosted on 2004-06-15 at 15:22:06ID: 11319908

it would be great if you give me vbscript source code

 

by: AdotekPosted on 2004-06-15 at 15:31:46ID: 11319962

 

by: kar10sPosted on 2004-06-15 at 15:32:08ID: 11319965

Hi nguyenn,
Are you referring to Base64?
Take a look to this: http://www.pstruh.cz/tips/detpg_Base64.htm

Cheers!

 

by: kaliyappan_kPosted on 2004-06-15 at 21:19:33ID: 11321309

I just give u one idea on password encryption,

There is an algorithm called md5 encryption, which stores the password in md5 encrypted form in the database.

And, For eg,

if a user logs in to your site using username, password

You will encrypt the supplied password using the same md5 encryption algorithm, and compare it in the database.

So md5 encryption is one way, that is there is no decryption.

If it matches your requirement, post your comment

I am ready to supply the code necessary for the same.

Note :

Even the DBA cannot know what the password is stored in the table

And also, if a member forgets his password, you cannot just see into the table and inform him, the only option is to generate another password and supply it to the user

 

by: fozyletPosted on 2004-06-16 at 01:47:53ID: 11322502

here is a similar que i asked some time back... juz check out if it helps...

http://www.experts-exchange.com/Web/Web_Languages/ASP/Q_20986514.html

 

by: nguyennPosted on 2004-06-16 at 07:10:24ID: 11324493

Thank you all Experts, i'm going to test your source code.

 kar10s, in the link you provided, i'm confuse how to use the Base64Decode() function.

It returns null when i tried this:
str64Passwrd = Base64Decode(myPasswd)

And how to decrypt the password if it encrypted?

thanks

 

by: leechoonhweePosted on 2004-06-16 at 18:47:07ID: 11330649

Try 1 way hash. Personally I find that it is very secure as even administrators do not know what is the password. Unfortunately, there is no way to decrypt the password.

http://local.15seconds.com/issue/000217.htm

 

by: nguyennPosted on 2004-06-17 at 05:51:34ID: 11334032

leechoonhwee, i just curious, in my app i have a function to allow the users change their information, including the password. If we cannot decrypt their's password, so the password bring up from the database should be encrypted password, so when they modify their info and save it , will the password encrypt again?

thanks

 

by: leechoonhweePosted on 2004-06-17 at 18:56:27ID: 11340599

The user can change the password no problem because you do not need to show them what is their old password, you only need to authenticate them before allowing them to change the password. I have a handful of apps that utilise 1 way hash and so far have proven to be very secure. Just remember that it is always 1 way,

Storing.
Input, encrypt , store.

Authentication.
Input, encrpyt, compare.

 

by: nguyennPosted on 2004-06-22 at 07:46:48ID: 11369645

Thanks for all your help Experts, I'm appreciated for your suggestions.

leechoonhwee gave me a very good idea, i'm going to use it in my application.

nguyenn

20120131-EE-VQP-002

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