World Library  
Flag as Inappropriate
Email this Article


Article Id: WHEBN0003536499
Reproduction Date:

Title: E4m  
Author: World Heritage Encyclopedia
Language: English
Subject: Comparison of disk encryption software, Cryptographic software, Free software, TrueCrypt release history, Scramdisk
Collection: Cryptographic Software, Disk Encryption, Free Software
Publisher: World Heritage Encyclopedia


Original author(s) Paul Le Roux
Initial release 1997 (1997)
Last release 2.02a / 2000 (2000)[1][2]
Development status Discontinued
Operating system Windows 9x, Windows NT
Size 465 kB
Type Transparent disk encryption
License Free software[3]

Encryption for the Masses (E4M) is a free disk encryption software for Windows NT and Windows 9x families of operating systems. E4M is no longer maintained. Its author, Paul Le Roux, joined Shaun Hollingworth (the author of the Scramdisk) to produce the commercial encryption product DriveCrypt for the security company SecurStar.

The popular source-available freeware program TrueCrypt was based on E4M's source code.[4] However, TrueCrypt uses a different container format than E4M, which makes it impossible to use one of these programs to access an encrypted volume created by the other.

Shortly after TrueCrypt version 1.0 was released in February 2004, the TrueCrypt Team reported receiving emails from Wilfried Hafner, manager of SecurStar, claiming that Paul Le Roux had stolen the source code of E4M from SecurStar as an employee. According to the TrueCrypt Team, the emails stated that Le Roux illegally distributed E4M, and authored an illegal license permitting anyone to base derivative work on E4M and distribute it freely, which Hefner alleges Le Roux did not have any right to do, claiming that all versions of E4M always belonged only to SecurStar. For a time, this led the TrueCrypt Team to stop developing and distributing TrueCrypt.[5]

See also


  1. ^ "Download E4M". E4M Encryption Software Unofficial Site. Archived from the original on 2012-04-12. 
  2. ^ Dean, Sarah (2001-07-29). "On-The-Fly Encryption: A Comparison". Sarah Dean. Archived from the original on 2011-12-28. 
  3. ^ "License agreement for Encryption for the Masses". Paul Le Roux. 2000. Retrieved 2014-05-28. 
  4. ^ "Version History". TrueCrypt Foundation. Retrieved 2014-05-28. 
  5. ^ TrueCrypt Team (2004-02-03). "P. Le Roux (author of E4M) accused by W.Hafner (SecurStar)".  
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.