Email Encryption End‑to‑End
Hermetic Systems

Encryption software for secure end‑to‑end transmission of email

Prices
Download the
trial version
Purchase
a user license
Email encryption has become a hot topic since the revelations by Edward Snowden in mid‑2014 that the NSA gobbles up every email message you send, then scans it to ascertain whether it might contain something "interesting", such as your business plans. Email encryption prevents this, and doesn't have to be difficult. This software is easy to use but nevertheless provides strong encryption.
 
Here is a sample screenshot just prior to encrypting a message:
 
German version
Email Encryption End-to-End screenshot #1

Compatible with Windows 10
Email Encryption End-to-End makes it easy to send and receive encrypted email. It can be used to encrypt a message to be sent via any desktop email program or webmail that supports attachments (that is, files attached to a message). The encrypted message consists of a text message (up to 60 KB in size) plus, optionally, an appended file of any type (up to 1,980 KB = 1.93 MB in size). The message (including any appended file) is encrypted and written to a ciphertext file. You then attach this file to an ordinary email message. Thus your message is encrypted before it leaves your PC to go to the mail server, and it remains encrypted during transmission to the recipient's ISP and while being downloaded to the recipient's PC. Thus the message is encrypted "end‑to‑end", and, if intercepted anywhere between your PC and the recipient's PC, cannot be read.


User Manual  
Use of the Program
Specifying the Encryption Key
Comparing Plaintext and Ciphertext for Randomness
The Encryption Method
   
See also: A Practical Example of the Use of Email Encryption End‑to‑End


Trial version: A copy of the Email Encryption End-to-End software is available for free download from this website for the purpose of evaluation. Click on the following link for further information:
 

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Click here to see prices.
Price and ordering: A single-user license for the fully-functional software is available for a period of 3 months, 1 year or with no time limit (a 'perpetual' license). Prices for each type of license are given at Purchase a User License. An activation key is required in order to make the trial version permanently fully functional, and can be obtained immediately (or soon after) your purchase.

Refund: A refund will be provided promptly up to 30 days after purchase if the software does not perform satisfactorily.

Updates: Purchasers of a user license for this software are entitled to an update to any later version at no additional cost.