encryption is the conversion of data into a form, called a ciphertext, that cannot be easily understood by unauthorized people. Decryption is the process of converting encrypted data back into its original form, so it can be understood.
The use of encryption/decryption is as old as the art of communication. In wartime, a cipher, often incorrectly called a "code," can be employed to keep the enemy from obtaining the contents of transmissions.
(Technically, a code is a means of representing a signal without the intent of keeping it secret; examples are Morse code and ASCII.) Simple ciphers include the substitution of letters for numbers, the rotation of letters in the alphabet, and the "scrambling" of voice signals by inverting the sideband frequencies.
Alternatively, a computer can be used in an attempt to "break" the cipher. The more complex the encryption algorithm, the more difficult it becomes to eavesdrop on the communications without access to the key.
Nevertheless, encryption/decryption is a good idea when carrying out any kind of sensitive transaction, such as a credit-card purchase online, or the discussion of a company secret between different departments in the organization.
While most companies and their customers view it as a means of keeping secrets and minimizing fraud, some governments view strong encryption as a potential vehicle by which terrorists might evade authorities.
These governments, including that of the United States , want to set up a key-escrow arrangement. This means everyone who uses a cipher would be required to provide the government with a copy of the key.
Decryption keys would be stored in a supposedly secure place, used only by authorities, and used only if backed up by a court order.
Opponents of this scheme argue that criminals could hack into the key-escrow database and illegally obtain, steal, or alter the keys.
Call us now
We would welcome the opportunity to discuss your requirements further. If we can be of any assistance to you, please contact us or one of our ad sponsors.
:: :: :: ::