SECURE™ FAQs

SECURE Encryption Made Easy
For an explanation of terms go to the Glossary


Q.   How do I install SECURE™?

A.  Get a free copy of SECURE™ that will work for 30 days, or get a registered copy for $59.95 that will last you forever. When you download SECURE™ or the demo copy of SECURE™, remember which file folder or directory you downloaded it into. It will take only a few minutes to download the program. Make a note of the file name you are downloading. The file has the ".exe" extension on the end of the name. Double-click the ".exe" file you downloaded. It will ask you if you want to install it. Click "Yes", and it will install itself on your computer and put this icon onto your desktop:


Q.   How do I Uninstall the SECURE™ Demo so I can then install the registered version instead?

A.  Click the "Start" button in the lower left hand corner of your computer screen. Then click: "Programs", then click: "SECURE CO", then click: "SECURE Encryption", then click: "Uninstall SECURE Encryption". Now you can install your new registered copy of SECURE™ following the instructions above.


Q.   How do I use SECURE?

A.   Just double-click the SECURE™ icon on your desktop:
It will open up a window with a listing of all the files on your computer. Choose a password that is at least 6 characters long and type it into the password box. You will need to then type it in again to protect yourself from errors. (If you were to type an incorrect password, you would never be able to decrypt those files.)
          Be very careful not to pick a password that is in the dictionary. The more random your password is, and the longer it is, the less likely it is that anyone will ever be able to crack it. If you use the same password all the time for all your personal files, you will be less likely to forget it. However, if you are encrypting something to send to someone else, you will naturally want to use a different password that you agree upon in advance.
          Simply highlight the file you wish to Encrypt & Compress, and click "Process". (See below to process many files at once.) You can also click "Help" at the top of your SECURE™ program any time you need it. It might also help to look at these instructions and a copy of the interface.


Q.   Can I encrypt and compress many files at once?

A.  Yes. You can highlight many files and process them all at once. You can process every file in every directory and encrypt and compress them all - one directory after the next. You can process as many files as you want at a time, as long as they are all in the same directory and are all grouped together. If there is a file in a directory you do not want to encrypt and compress for some reason, just process all the files that appear before it, and then process all files after it.
          You will never need to worry about encrypting and compressing a file with SECURE™ however, because it will never be lost or modified. The only files you may not wish to encypt and compress on your computer are those operating system files and programs that operate Windows and other programs you use frequently. (You can encrypt and compress programs without changing them, but they will not function while they are encrypted of course.)
          Click the first file name once to highlight it. Next hold down your "Shift" key as you simultaneously click the last file you wish to process. Then you can release the "Shift" key. All the files will become highlighted from the first to the last. Now when you click the "Process" button, SECURE™ will process all the files at once.


Q.   What does the SECURE™ program do?

A.  Several things. In simple terms, the SECURE™ program makes a file private. The program first compresses the input file. (Files that are not already compressed can be compressed by the SECURE™ program.) Then, SECURE™ encrypts the file. Finally, SECURE™ removes any trace of the original file. The SECURE™ encrypted file is always an encrypted version of the original file and is usually smaller than the original file. The same program restores the original file to anyone who knows the same password that was used to encrypt the file.


Q.   What are some of the applications of the SECURE™ program?

A.  Because SECURE™ makes files private and also compresses files, it is a great way to keep everything on your computer completely private, and also free up a lot of space on your computer. Since SECURE™ can process every file in a file folder or directory at the same time if you wish, it can do the job for you very quickly.
          SECURE™ also is the best way to put things on three and a half inch discs, zip drives and CDs because it will compress much more onto each disc. If the discs ever fall into the wrong hands, it cannot be deciphered without the proper password.
          SECURE™ also makes E-mail faster and safer. E-mail falls into the wrong hands every day. If you don't want other people to read your e-mail, use SECURE™. Sending documents, pictures and other attachments by e-mail also goes much faster with SECURE™ because they are compressed. Only your intended recipient will be able to read your mail and see your attachments with the password you give them.


Q.   What encryption method does SECURE™ use?

A.  It uses a proprietary encryption algorithm. The user's password is not stored in the file or on the disk. Therefore, there is no one (including the author of SECURE™) that can decrypt a SECURE™ encrypted file if the password is forgotten.


Q.   Why can't SECURE™ compress every file?

A.  Some files are already compressed. Files that are already tightly compressed (zip files, etc.) will not be compressed further by SECURE™. On the other hand, medium to large size text files will be considerably smaller when compressed by SECURE™.
Q.   What does the SECURE program do?

A.  Several things. In simple terms, the SECURE program makes a file private. The program first tries to compress the input file (files that are not already compressed can be compressed by the SECURE program.) Then, SECURE encrypts the file. Finally, SECURE removes any trace of the original file. The SECURE-encrypted file is always an encrypted version of the original file and is usually smaller than the original file. The same program restores the original file to anyone who knows the password that was used to encrypt the file.

Q.   Can I encrypt many files at once?

A.  Yes. This is explained in the Help pull-down menu "Using SECURE". You can select several files for processing within a list of files by clicking the filename to start processing and then by "shift-clicking" the filename further down in the list to stop processing. A "shift-click" means holding the shift key down when doing the mouse click.

Q.   Why can't SECURE compress every file?

A.  Some files are already compressed. Files that are already tightly compressed (zip files, etc.) will not be compressed further by SECURE. On the other hand, medium to large size text files will be considerably smaller when compressed by SECURE.

Q.   How important is the password?

A.   The most vulnerable part of any password-based encryption program is the password itself. The most devastating attack against such a program is called the "brute force attack." The brute force attack means trying every single character and symbol combination of various lengths to get into the system. That is why password selection is so important. As shown in the help section of SECURE, there will be a minimum of 965,660,736 different possibilities for a password with the SECURE program. That is a significant number of possibilities so the SECURE program is a very good choice when encrypting files. That number of possibilities makes it extremely difficult and impractical, if not impossible, for an unauthorized person to decrypt a file. Also, consider the fact that people are not using the same password when encrypting files.

Q.   64-bit, 128-bit, 400-bit encryption??? What are the details of the SECURE algorithm?

A.   The SECURE program greatly exceeds 400-bit encryption. The most secure encryption method is called the "one-time pad" when the length of the key exceeds the length of the message (or file).

For example, if a 200k file was encrypted with a key length of 300k (2,400,000-bit encryption) there would be ABSOLUTELY no chance of decrypting the file IF you had only the encrypted file. My algorithm does not implement the one-time pad in every instance. However, the "developed" key length is so long that, for small files, the method I use is equivalent to a one-time pad. The password entered by the user is only one ingredient when developing that super-long key (on the fly) for a file being encrypted by my SECURE program.

Part of my SECURE algorithm ensures that the user's password is never stored in the encrypted file or on disk. Therefore, even I cannot decrypt a file that was encrypted by someone else (and I'm the author of the SECURE program!)

However, ALL password-based encryption programs are subject to a very devastating attack called the "brute force" method of attack. That means trying to reconstruct the user's password using every possible character combination for various-length passwords. For longer passwords, the number of password possibilities are so large that it would be extremely difficult, if not impossible (even using a computer), to try every possibile combination. Of course, a copy of the program would also be needed because such an attempt depends upon the user's password AND the algorithm used to develop the key.

Please understand that, in any password-based system, the password is the weakest part of the system as explained here and elsewhere in the FAQ.

There are many fine books on encryption. If anyone has a sincere interest in learning more about encryption, I suggest reading a few of those books.

Since numerous people have asked me for details on the SECURE algorithm, I decided to add this information to my FAQ instead of responding to all individual requests for information.

Q.   What is the format of a SECURE-encrypted file ?

A.   When the SECURE program encrypts a file, it produces something called a "binary non-executable file." That means the resulting (encrypted) file contains binary data but it cannot be run as a program can. If someone has the correct password, the SECURE program can restore the encrypted file back to the original file.

It is important to note that the encrypted file is NOT a text file. Although this is common sense, you should not, under any circumstances, try to modify, shorten, lengthen, append data to, or in any other way alter a SECURE encrypted file because then the file will be corrupted and will not be able to be decrypted.

Q.   How strong is the SECURE encryption algorithm ?

A.   Many people have asked to see the encryption algorithm.
Looking at the algorithm would not help in decrypting a SECURE-encrypted file for the reason stated in this FAQ. The program is only as good as the password. The user's password is not stored in the encrypted file or on the user's disk. Therefore, if the person using SECURE forgets his or her password, even the author of the SECURE program would have no way of recovering the original file.

Q.   Can I purchase your algorithm or the source code?

A.   No. Only the program (executable) is for sale.

Q.   Why should I purchase your program instead of a different encryption program?

A.   The choice is yours, of course. There are well over 200 different encryption programs available on the market. You are free to choose the one you want. The SECURE program, due to the strength of encryption, is for sale only in the United States.

Correction of Error (note by author)

The password section of the SECURE program incorrectly states that the minimum number of possible passwords for a password length of six is 965,660,736 when, in fact, the correct number is 56,800,235,584 (62 to the sixth power.) This change reflects the true minimum number of possibilities for a password length of six. Using the English alphabet (upper and lower case) plus numbers 0 through 9 gives 62 choices for each position in a password. These possibilities are shown in the table below.

Password Length versus Password Possibilities

Password Length Password Possibilities
        1 62
        2 3,844
        3 238,328
        4 14,776,336
        5 916,132,832
        6 56,800,235,584
As shown in the table above, when using only upper and lower case letters in the English alphabet plus numbers 0 to 9, the minimum number of possible passwords for a password length of six is over 56 billion.  In any password encryption program, password selection is very important. A very advanced and sophisticated encryption algorithm does not compensate for a poor choice of password. As stated here and elsewhere, using any six letter English word (such as "action", "manner", and "zipper" are very poor choices for a password. Use something that cannot be found in a dictionary.

For more detailed information see the technical specifications

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