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ABOUTFast Fact About Stealth EncryptionHackers will grow old and die before cracking the key, even with a supercomputer. Because Stealth Encryption uses Blowfish (an algorithm), there are more possible keys to check than there are atoms in the Milky Way!
How can Stealth Encryption software be used?
What are encryption and steganography?Encryption is a way of scrambling data. The two main components of encryption are the algorithm and the key. Algorithms are complex mathematical formulae and keys are strings of bits, such as a word, phrase, numbers, or combination of numbers and letters. Steganography is a way of hiding data, so that it cannot be detected. Stealth Encryption uses both encryption and/or steganography to secure data.
How does Stealth Encryption work?Stealth Encryption software is a wizard application that takes you step-by-step through the process of hiding a file inside a picture and/or encrypting it. When hiding a message, the data bits in the message are hidden in the low-order bits of the pixels in the picture file. Twenty-four-bits-per-pixel .BMP or .TIF files are used, so that the hidden message data will not affect how the picture is viewed. Each pixel (twenty-four bits or three bytes) of the picture file can hide three bits of the message file.
What kind of data can you hide in the picture?The message file can be any type of file: a program (.EXE file), a word-processing document, another picture - it doesn't matter. After you select the message file, the program will assist you in selecting a picture file by telling you how large the picture file must be and not letting you select one that is not large enough to hold your message. In addition, the message file can be encrypted with Triple-DES as it is being hidden. You will be prompted for an encryption key phrase of up to 256 bytes (characters). The output picture file, with its hidden message, is also a 24-bit .BMP or .TIF file, and it is the same size as the input picture file. The message can also be encrypted without being hidden in a picture. In that case, the output file will have a .DES extension and will be slightly larger than the original message file. Encrypted files are larger than the original file because an authentication code is added to the output file, so that whoever decrypts the file can tell if it has been modified.
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page last updated - March 3, 2000 - ecp |
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