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CryptoLock encryption software for the PC and USB

CryptoLock Setup Download(1.2MB)

Businesses struggle to find the best encryption solution to protect important information because of these two reasons. Encrypting data should be affordable so that it doesn't crush their bottom line. Encrypting data should be simple to do so that their employees will implement it. CryptoLock encryption software is the answer.

CryptoLock Encryption Software provides quick and easy encryption for all of your files. The simple to use interface allows you to drag and drop your files between CryptoLock encryption software and Windows Explorer to add or extract files from an encrypted archive.

Files stored in a CryptoLock Encrypted Archive are first compressed to save space and then encrypted with the password you provided. The whole process is done behind the scenes and only requires you to provide the password to use and the files to encrypt, CryptoLock does all the rest. The only way to retrieve the files from the encrypted archive is with the correct password. Your files are protected and locked away from prying eyes.

When you need to access the files stored in your encrypted archive, you open the archive with CryptoLock and extract them back to your computer. Opening the archive will require you to enter the password you provided to encrypt the files. Then you can use drag and drop option to extract a file, or group of files from the archive to your Desktop or any other folder in Windows Explorer®.

CryptoLock supports full copy and paste functionality and provides toolbar and menu items for extracting the selected files, or groups of files to a specific directory.


  • Data within the encrypted archive can not be viewed without a valid password.
  • Drag and Drop interface allows for encryption and decryption of files and entire directories.
  • Choose from 6 different encryption methods and 2 different compression methods.
  • Create Self Extracting Archives which can be decrypted on any Microsoft Windows® based computer without installing CryptoLock on the destination computer.
  • Encryption and Compression methods can be disabled by network administrators to ensure CryptoLock will only allow creation of archives that adhere to your network security policies.

Technical Specifications:

  • Supported Encryption Algorithms:
  • AES (FIPS 197 Specification)
  • Rijndael (192 and 256 bit blocksize)
  • Blowfish
  • Twofish
  • DES (FIPS 46-2 Specification)
  • TripleDES (FIPS 46-3 Specification)
  • GOST Encryption Standard (GOST 28147-89 Specification)

Supported Modes of Encryption:

  • ECB - Electronic Code Book
  • CBC - Cipher Block Chaining
  • CFB - Cipher Feedback Mode
  • OFB - Output Feedback Mode

Compression Algorithms Supported:

  • Deflate (RFC 1950)
  • BZip2
  • Misc Specifications:
  • RFC 2898 based Key Derivation based on your password and a randomly generated salt which is unique for each file encrypted.
  • RFC 2104 based HMAC verification of extracted files to ensure your data isn't corrupted.

System Requirements:

  • Supported OS: Windows® 2000/XP/2003/Vista/Windows 7
  • Processor: AMD Athlon or Intel Pentium
  • RAM: 16MB
  • Hard Disk Space: 2MB

LetterMark® Web-enhanced Email

LetterMark technology converts plain text emails into a powerful marketing and branding tool by adding customized interactive templates. Your messages can include an email business card, your company logo and more.

With LetterMark email, every time your employees hit “send” they extend your brand and promote your products, services, special events and news.


    Your image and contact information is always current, even in previously sent emails!


    Branding, web-integration & enhanced contact information in every single email!

  • Confidence and

    Confidentiality & Privacy for every single email –
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Helping you market smarter.

CryptoLock ™ v1.5.0 build(1209)

Download the FREE decrypt only version of CryptoLock to decrypt .CEA and .CIP files as well as encrypted LetterMark® email attachments

This version can be upgraded to the full version using an activation key from our online store or try it using a free trial by selecting 'Get Activation Key' from the Help menu after you have installed CryptoLock on your PC.
CryptoLock Setup Download(1.2MB)

More information about CryptoLock.

Note: This download is intended for use on the computer's hard drive. If you would like to use CryptoLock on your USB device, please see our Portable Security Suite below.


A setup fee is applied to the purchase of the first year’s licenses (waived for three year agreements). Three templates are normally included with the initial license. Additional design services are available for an extra fee.

LetterMark® users will need to download the software by logging in to their LetterMark.NET personal account and accessing the software downloads page at http://www.lettermark.net/personal/download.asp

Note: You will need an active LetterMark account to download the software. Your email address and LetterMark.NET password are required. If you do not know your password, use the link on the page above to recover your password or contact your companies technical support staff.

LetterMark® email is licensed on an annual “right of use” basis, for one or three year periods. License fees include customer support, hosting of email templates and database information and all LetterMark® client software upgrades and new releases during the license period.

For more information about LetterMark® Click Here.

  • RTSZ
  •   Research Triangle Software, Inc.
         1140 Kildaire Farm Road Suite 304
         Cary, NC 27511
  •   Telephone: +1 866-206-2426