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© Copyright Micheal J. O'Brien 2003 |
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Why Encrypted E-mail?
If you are neither Saddam Hussein nor Usama Bin Ladin and you are not a politician, research scientist, investor, CEO, lawyer, celebrity, libertarian in a repressive society, investor, or person having too much naughty fun; and if you do not send e-mail about your private sex life, extra-marital partner, nor your financial / political / legal / scientific / personal plans, or gossip ... then maybe you don't need email encryption. But when you send an ordinary unprotected email, think of it as being a post card upon which you have written your message in the open, on the back, for anyone to read.
Sending passwords; providing banking information; telling a distant loved one where you left the house key; communicating to your boss from the field about sensitive customer matters; and communicating sensitive information of any kind are all good reasons for using encrypted E-mail.
This service allows you to use E-mail encryption from any computer without risk. Information is not cached on the computer you are using. All processes take place on the localhost on-the-fly. No unencrypted data is transmitted at any time.
Estimates suggest that there are currently hundreds of persons
using the internet who can read your ordinary confidential E-mail
messages when sent from an unprotected, non-encrypted E-mail
client. Spy agencies run by many national governments, including
unfriendly ones, scan everyone's E-mail! Bad guys do it too.
You can prevent such snoopy eavesdroppers from reading your
E-mail by encrypting it. This is done by transforming your plain
text message into hard-to-decode cipher text.
Free SHA1 Encrypted E-mail Service
The aim of our service is to transmit your E-mail text message in an encrypted form so that it cannot be scanned for key words while enroute or in fact it cannot be read by anyone. What happens once it is decrypted at the hands of the cipher recipient on the receiver's computer is up to them and the protective security measures they have enabled.
E-Mail Encryption - Instructions
The encrypted e-mail recipient automatically receives instructions for decrypting messages. No unencrypted message is transmitted across the internet, however, if a person intercepts the recipient's E-mail they could easily come to this site and decrypt the message by following instructions included as part of your coded E-mail. If you are using this service to avoid sending sensitive data between computers or across the internet, that's perfect. If you are afraid of a person intercepting coded E-mails, in other words a person having full access to the recipient's computer, username and password, a far more sophisticated technique is required. Nevertheless, why you would be entrusting sensitive information to a person who has compromised their security by sharing their password and username with unfriendly's is perhaps cause for you to seek a shrink, not data encryption.
( For advanced users only: An extremely sophisticated version of this system is available and would comprise the creation of your own secret keyword and using this form to code and decode the data with the secret keyword as the SHA1 base. Each person you send encrypted E-mail to would need to know the secret keyword and also would need to know the location of this form in advance. They would need to ignore the instructions included in the E-mail and use this form instead. If you understand these instructions you should be able to implement such a communication link ably. If you do not understand the instructions of this paragraph, do not attempt it, but instead use our fool-proof system resource to Send Encrypted Mail. )
Your e-mail remains encrypted from the time it is sent and until it is received and decrypted by the intended recipient. The stored E-mail is encrypted. Decryption takes place on the receiving machine only in physical memory. Once the browser window is closed the data is gone.
Between transmissions when your e-mail is stored on mail servers, the message remains encrypted and the content cannot be "sniffed" for specific key words as is the manner in which E-mail "eavesdroppers" select the E-mails they want to read.
Using our encrypted E-mail service there is no need to exchange passwords or complex public key details with encrypted E-mail recipients. The encrypted E-mail recipients are automatically sent instructions for deciphering the encrypted E-mail. Sending an encrypted E-mail message using our service is as simple as sending an ordinary Web-Mail. Other E-mail encryption methods require the sender and receiver to exchange public keys which is complicated, inconvenient and not very practical when sending encoded E-mail messages in a spontaneous fashion.
Encrypted E-mail at CanadaEmails.com
This is the window that pops up when you want to send an encrypted E-mail.
Once you have obtained a Temporary
Password and clicked the button above,
an E-mail panel such as
that illustrated here will open.
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"To:" - Enter the recipient's E-mail address and check it to be certain there is no typing error.
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"Your Name" - The name that will appear in the "From" section of the receiver's E-mail client.
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"Your E-mail" - Enter your E-mail address and check it to be certain there is no typing error.
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"Subject" - Enter the subject of your encrypted E-mail. This is not encrypted so do not enter sensitive information. This is important as it serves as identification amidst text that cannot be read (because everything else you write is encrypted).
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"Comments" - Enter your E-mail message in the text area provided. Check it fully before you change to an encrypted E-mail.
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Press the Encrypt button at the bottom of the panel ONCE to encrypt the E-mail message. If you hold the button down too long or hit it twice it cannot be decrypted and you must type again your entire message.
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Press "Send" at the top left of the panel.
More About Encrypted E-mail
You come to work or school one day to find that an FBI special agent has just paid a visit and that the system administrator has shut down your computer account to comply with a subpoena for all of your E-mail and other computer files. One of "your" non-encrypted E-mail files contains a large collection of credit card information or a "Nigerian Fraud E-mail" or a variety of scam projects or even all of these. Junk Mail? You did not create those non-encrypted E-mail files and know nothing about it.
You have been using hard-to-guess passwords and changing them regularly. How could someone have gotten access to your computer to use it for this scurrilous activity? How would the FBI or other agency find it? One likely possibility is that as well as being a recipient of a ton of spam or junk E-mail, you have been a victim of an E-mail packet sniffer attack.
The information you transmit via E-mail is essentially being sent back and forth along a wire. Anyone along that wire has the access enough to intercept and read the text. It's fairly easy to do. You might think that there would be an awful large amount of text information to scan. That's true, but the people doing the packet sniffing are looking for very specific key words. They program their "sniffing" software to perform certain actions and both store and flag messages containing certain key words.
That's where encrypted E-mail comes in. The words in your encrypted E-mail are gibberish to such packet sniffers and the E-mail passes unread by the eavesdropper. As your encrypted E-mail travels to the destination mail server via as many as 30 hops from computer to computer, the various packet sniffers that intercept the encrypted E-mail will only read sense from the to and from addresses. The encrypted e-mail's message portion will pass by the eavesdropper unnoticed.
Acceptable Use Policy For Encrypted E-mail
By using this
Encrypted E-mail service you agree to our acceptable use policy
and to respect the privacy of others. Encrypted E-mail services
must not be used for any improper purpose.
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© Copyright 2003 |
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