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Click on a heading below to select a JavaScript. To
view the source code for the JavaScript Right Click
the mouse button over the JavaScript window and then
select "View Source" from the pop-up window
Copy and paste the code. If any graphics are used in
the script. Right Click the mouse button over each graphic
and then select "Save Picture As" from the
pop-up menu. All the graphics should be put in the same
directory as the JavaScript. To go back to the Index
just close the JavaScript window.
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| Ascii
Encryption |
(Internet Explorer Only) A very simple encryption method
that uses random values for each character. Interestingly,
you can encrypt the same string as many times as you want
and the result will always be different. Best used with short
strings.
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| Character
Encoder |
Encrypts a string by converting each character to it's ASCII
key code. Supports two-way encryption - from a string to the
numeric code, or from the numeric code back to the string.
You can, for example, send the encrypted code to a friend
and have them decode it with this script.
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| Login
Coder |
This is undoubtedly the best password protection JavaScript
you'll ever find. Besides supporting multiple users, multiple
passwords, and even multiple destination pages (after they
successfully login), this script is presented in a very easy-to-use
interface that you're sure to love!
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| Multiple
Users |
Rather not have one password for access the Members-Only
section of your site? Well, along comes this little JavaScript
gem. You can set up a separate username and password for as
many members as you want, and even give each a different page
to go to after logging in!
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| Multiple
Users Prompt |
This JavaScript is just like the previous Multiple Users
one, but doesn't use a table interface to login. Instead,
after clicking the Login! button, the script will ask them
for their username and password, and then perform the password-protection.
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| Password
Generator |
Generate a random password with the ability to include special
characters and password restrictions.
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| Text
Encryption |
This JavaScript library provides encryption using simple,
text-oriented method called column transposition. The idea
is to write the plain text in block on the row-first bases.
The text is then read column-first. The trick is in that the
columns are not read from left to right, but in the order
specified by the encryption key. Transliteration is also used.
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| Three
Tries |
If you want to "protect" a site and don't have
CGI access, you can try this JavaScript. Visitors get three
tries to enter the correct password then they are refused
entry. Note: The password is: password
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| Virgenere
Encryption |
A fine example of the classic virgenere script and is nearly
impossible to decode, even when using frequency analysis.
This script is also entertaining since you can actually see
the encryption taking place.
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| Xor
Encryption |
Performs a bitwise XOR (Exclusive Or) on each byte of the
data you wish to encrypt using the key you provide. Useful
as an additional security precaution when sending sensitive
information over the Internet. (However, this method is not
foolproof and should not be your only form of security.) The
author notes that longer and more random keys increase the
strength of the encryption.
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