bon@ketufile.com
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Prevent Disclosure Of Your Confidential Information If It Is Intercepted When you have various types of files on your computer, such as word processor documents or spreadsheets, you may wish to send these, as an email attachement to other persons. If your email is intercepted by someone or some organization, then they can read and see the document. If the information in that document is confidential, then you have been compromised. The KetuFile program allows you to 'scramble' the information in a very sophisticated way to protect it from being read and understood by someone who has intercepted your email. What would happen if your company's patents, engineering documents, financial records, customer lists, employee files, contracts, and other private and privileged information got into the wrong hands? What would happen if the media was able to snoop into your communications? What would happen if your banking and credit card information were compromised? How could your competitors use any of the aforementioned information to gain an unfair advantage? What Is A Key? In the KetuFile program, the key is a series of numbers and letters that are used to encrypt a file (message). When the party who receives an encrypted file (message), wishes to de-encrypt to get back the original, this same key will be used. A common use for KetuFile might be to encrypt files (messages) that are to be sent over the Internet, perhaps as attachments to an email. These could be word processor files, spread sheets, images, executables, etc. The Sender will enter a random sequence of numbers and letters into the KetuFile program as the 'key', then tell KetuFile which file to encrypt. The Sender must communicate this exact key to the Recipient, so that the Recipient can enter the same key into his/her KetuFile program to de-encrypt the file (message). The Sender might convey the key by telephone, fax, courier, etc. |
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Robustness Of AES (Advanced Encryption Standard) There is a large and highly competent community of mathematicians and other scientists in the world today that can offer considered opinions on the robustness of AES and compare AES to older encryption techniques. AES is the result of a global competition for the new U.S. standard. Robustness Of KetuFile The robustness of KetuFile rests on the robustness of AES, the randomness of the key that the user selects and the fact that there are no 'back doors' whatsoever in KetuFile and additionally, there are no built in 'key recovery' features. Said another way, if you lose your key and ask the KetuFile manufacturer for help in recovering the original of the encrypted message, there is nothing we can do for you'. Please read on. Back Doors 'Back Door' is a widely used, and widely defined term-of-art. In the case of KetuFile, it would refer to the existence of a de-encryption process that can be applied to a given encrypted file (message), that does not need the original encrypting key. If an encryption product has such a back door it is, in essence, crippled. There are no 'back doors' whatsoever in KetuFile. Key Recovery 'Key Recovery' means that there is a way that the user's key can be deduced from either the encrypted file (message), i.e. the key is secretly buried in the encrypted file (message), or some other approach allows a third party to get or generate any users key. If an encryption product has such a key recovery feature, it is in essence, crippled. There are no 'key recovery' features whatsoever in KetuFile. |
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This product allows a PC user to encrypt any file that resides on a PC. The user runs the KetuFile software and then selects, through a standard GUI interface (graphical user interface) the file that is to be encrypted. In addition, the user must enter an Encryption Key, which is a series of numbers and/or letters. KetuFile will then create an encrypted version of the original file. The original file is left in-tact on the user's hard disk. The user may then proceed with a number of other actions depending on the purpose of the encryption. For example, the user may place the encrypted file on some backup medium, such as tape. The user may send an email to another party and attach the encrypted file. The user must convey the Encryption Key to the recipient of the email by some means other than the email itself. Examples of this include: phone, fax, courier. This version of Ketu allows encryption of one file at a time. The maximum encryption key length is 256 bits. This version of Ketu allows encryption of several files at one time. The maximum encryption key length is 512 bits. |
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