ClipSecure works with any clipboard-enabled text program!
Microsoft Outlook and Outlook Express users, please note:

Outlook does not allow you to directly modify a received email. If you select all or part of a received email containing ClipSecure ciphertext, ClipSecure will correctly decrypt the ciphertext to the clipboard, however it will fail to paste it back over the original text (if you have the 'auto paste over selected text' option active). Click here for more details.

Also, if you have had problems using Outlook where ciphertext was not decrypting, please read this. In brief: Outlook mangles ClipSecure ciphertext when you save/send a 'plain text' email. HTML and RTF formatted emails are unaffected. This Outlook bug has been worked around in ClipSecure v1.2.

 
ClipSecure encrypts text and files (with compression)!
 
NEWS

Apr 14, 2003:
Source code package is available. Read this before deciding if you really want to download it.

Apr 14, 2003:
ClipSecure v1.2 Final is now available. Check out what's new.

Apr 13, 2003:
Some hints on how to configure v1.2 final for use with Instant Messaging programs (this example is for Yahoo Messenger).

Mar 21, 2003:
ClipSecure opensource now has a SourceForge home. Not much there yet. Establishing the CVS trees will be first priority.

March 17, 2003:
ClipSecure v1.2 Beta 2 is now available. As with any Beta, there will be some minor bugs. If you find any, please let me know -- thanks! If you are new to ClipSecure then you might like to start with v1.1 and move to v1.2 after beta testing is complete (what -- you don't you want to play with the new features?). Beta 2 includes these changes. Features are now locked; only bugfixes will be done in the next few weeks until the release of v1.2 final and the opensource code. Note that this will be the last version from me :-)

Feb 13, 2003:
Bug report: a hotkey bug is present in all versions to date. If you leave a hotkey blank then hotkeys will stop working. This will be remedied in the next beta. For now, the workaround is to ensure all hotkeys are filled -- e.g. set an obscure combo for a hotkey that you don't want to use.


January 21, 2003
:
U
pdate to the Outlook issue below: It only affects Outlook emails created as 'plain text'. HTML- and RTF-formatted emails are unaffected.

January 19, 2003
:
With ClipSecure v1.2 Beta I have solved the odd Microsoft Outlook/Express problem of text not decrypting on receipt. More info here.

MENU
DOWNLOAD

The CRC32 checksum for clipsecure.exe (v1.2.0.26) is:
A2989D15
The MD5 checksum is:
82a0790af398cb48
9f608adac573637a

Version 1.2 final
(site1)

(~360 kb zip file)
(site2)
(if above link fails)
(site3)
(if above link fails)

The CRC32 checksum for clipsecure.exe (v1.1.0.30) is:
BC00AE67
The MD5 checksum is:
42363a151368be8f
23ebf072d2dc3ba4

Version 1.1 final
(site1)

(~335 kb zip file)
(site2)
(if above link fails)
(site3)
(if above link fails)

The CRC32 checksum for the clipsecure opensource zip package (v1.0.2) is:
1DF4E6EE
The MD5 checksum is:
bed3ddbdbe6fff66
8b24369be6600a85


OTHER USES FOR CLIPSECURE

Web email: Use ClipSecure to protect your Hotmail or other web-based email accounts. Did you know that your Hotmail emails are stored on your computer and can be recovered by anyone with a file-recovery program? If you encrypt the Hotmail email before clicking the Send button then, if that page is later recovered from your harddrive, the message body will be encrypted and unreadable.

Bulletin boards: You may need to distribute a message in a public forum instead of through private email. ClipSecure ensures that you can post to any public forum knowing that only those with the decryption key (and a copy of ClipSecure) will be able to read the message.

RELATED LINKS
Eric Howes' extensive security page: Contains links to info and programs from just about every area of encryption and security. If you are looking for public-key cryptography solutions like PGP, start here.
Web-based RC4 encryption: Need to secure your text or email but can't run any encryption software? (Using a locked-down public computer, perhaps?) Just go to my RC4 online encryption page here. It's the same as GSG's, just without the ads and obfuscation.
David Barton's DCPcrypt package: Want to roll your own industry-strength security application? David's excellent free Delphi encryption package can make it happen. Just remember, if you make money from it, donate to David's PayPal account!
Eraser: An excellent free, open source file wiper and disk scrubber. Comprehensive, schedule-enabled, mature. Useful for personal privacy or anyone who needs to securely cleanse a PC's harddrive prior to sale or disposal.
MySecret Blowfish Encryption Utility:
Written by David Ireland, MySecret.exe is a DOS-based freeware utility that enables you to encrypt the contents of the clipboard or disk files. It is small - 50 kB - and quick. It uses the Blowfish algorithm to create a base-64 encoded text file that can be easily transmitted over the Internet.

CrypTool: A fascinating free tool to analyse and explain both historical and modern cryptography. Use it to examine ClipSecure's output!

Nullsoft's SafeSex : a little virtual notepad from the makers of Winamp for scribbling things down. It sits on your screen, and on a click it will activate and give you access to your notes. Blowfish, SHA1, and CBC encryption.
Extreme Editor : A good, simple freeware text editor that encrypts with Twofish and SHA1.

Various javascript stuff for useful with HTML and web pages, e.g. calculating MD5 and SHA1, self-decrypting messages in HTML/ javascript, etc.

PSST: Simple, free, convenient no-frills Instant Messaging software
with strong encryption, for Windows and Linux.

- What is it? -

ClipSecure's main features:

> works with just about any application or source window that can process the standard windows clipboard shortcuts of CTRL-A (select all), CTRL-C (copy to clipboard), CTRL-V (paste from clipboard)

> compression prior to encryption

> choose hashing mode from:
MD5, RipeMD, SHA1, SHA256, SHA512, Tiger

> choose chaining mode from:
CBC, CFB8bit, CFBblock, OFB, CTR

> choose algorithm from:
Blowfish, Cast256, MARS, RC6, AES (Rijndael), Serpent, Twofish, IDEA, 3DES

> configurable one-hotkey encryption and decryption, or control every step manually

> send decrypted text to source window, internal viewer, or program of your choice

> encrypts/decrypts plain or rich text

> file mode with secure file wiping for internal processes

> password manager (encrypted to file) for one-click password selection and individual cipher settings

> retain a session password

> 'hardcore mode' second-pass encryption

> user-specified config file -- registry not used

> command-line options for silent, traceless operation

ClipSecure is a simple, secure, freeware text encryption utility that operates with the Windows clipboard, and therefore can be used within any text-based program and most email clients. It uses many industry-accepted algorithms, including the AES (Rijndael) standard, to provide maximum security. Encrypt and decrypt text with one keystroke, or manually control every step of the process. File encryption is also supported.

ClipSecure was designed to be a small, fast, easy-to-use security solution for those (like me) who prefer to avoid the size and complexity of programs like PGP, and yet still have industry-strength encryption.

Here's your first look at ClipSecure — the paragraph above compressed and encrypted with the default AES algorithm and a password of 'test':

6CPnKHPDoy6Sd+p/e2crR77pQXNZr9umnDGyE98l2Pfcqmp8lRcvwdhcpd4j0qNK52X3SwH0NS2W
OtypLte+Wn35SPxuRhixXZIWdB/FiuQacM0UFg5umM4od4+TVBQXMDX8xe7O9o9ElsjPh0ejvgM4
ZDYh9jbspJRAkNFCUbBCydtfeG8lXjDWSrajpyWb/hyFwcYpFHCokETexxNo

Practice using ClipSecure by decrypting the ciphertext!

— ClipSecure, copyright © 2002 Andrew Ferguson



Click to reward the author of this free software. Donations gratefully accepted. Account details:

- What's upcoming in v1.2.1? -

v1.2.1

* For regular users, added option 'no messages' to disable non-critical
popup messages (e.g. 'Using RTF', 'Using stored password', 'Using hardcore mode') during encryption/decryption. This removes the small processing delays. It can occasionally result in clipboard connectivity problems. If this happens to you then switch messages back on.

* Fixed bug with sometimes displaying wrong password-list ID when password is retained. The popup message now displays 'manual entry' when password is retained but not selected from list.

* Fixed bug with 'confirm password' when used with a list password. Confirming is not necessary when password selected from list.

* Fixed 'internal viewer' so that it shows the beginning of the deciphered text instead the end.

* Altered 'add sender tag' so that the info is built only when the option is actively in use. This is instead of building the string once at program startup. Hence, firewalls will only trigger if this option is active -- and will trigger every time now instead of just when ClipSecure is started. If your firewall complains, just set a rule to allow or block ClipSecure from doing its DNS lookup.

- What's new in v1.2 Final? -

v1.2 Final

* Added Exit hotkey (quit program).

* Added 'no decompress' option to allow decrypting of ciphertext
encrypted by earlier versions of ClipSecure where no compression was
used. Note: from v1.2 on, plaintext is *always* compressed prior to
encryption.

* Fixed bug with 'add sender ID' and Harcore Mode.

* Fixed bug with file mode and Hardcore mode. Hardcore mode is for text
mode only, however it was incorrectly activating in file mode too.

* Fixed bug with 'external viewer'. Decrypted text was not being sent
when the target application was open and minimized.

* Fixed bug with 'sender ID' info where harddrive serial number giving
wrong result.

* Fixed bug with 'set font' window appearing behind the 'on top'
internal viewer window (introduced in Beta 2).

* Fixed bug with non-standard DPI (e.g. 120 dpi) and fonts (e.g. large,
extra large) where bottom edge was obscuring the password manager.
Rewrote code to size those windows correctly. Removed the redundant
workaround 'expandmanagerheight' (see Beta 2 info below).

* Updated ClipSecure icon. The outdated 'AES clip' icon is gone,
replaced by a B&W yin-yang symbol.

>> Thanks to Michel Caroff for his assistance beta testing this release!


- Screenshots -

ClipSecure v1.0.1 screenshot

 ClipSecure v1.1 screenshot     ClipSecure v1.1 screenshot

ClipSecure v1.1 screenshot

ClipSecure v1.1 screenshot

ClipSecure v1.1 screenshot

Microsoft Outlook and Outlook Express users, please note:

Outlook does not allow you to directly modify a received email. If you select all or part of a received email containing ClipSecure ciphertext, ClipSecure will correctly decrypt the ciphertext to the clipboard, however it will fail to paste it back over the original text (if you have the 'auto paste over selected text' option active). To compensate for this, try the following: [1] select the option to send the decrypted text to ClipSecure's internal viewer or an external editor of your choice, or [2] switch off 'autoselect all text' in ClipSecure Options; hit the 'reply' button to reply to the received email; in your reply window, select the encrypted text; hit your decrypt hotkey -- the decrypted text will be pasted over the encrypted text. Be sure to delete the decrypted text from your reply once you have read it -- or, manually hit CTRL+A to 'select all' prior to encrypting and the whole lot will be encrypted again ready for sending!

 
Comments? Bugs? Site or download problems? Email me:
 
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Page last modified May, 2003
ClipSecure ©2002, 2003 Andrew Ferguson