encryption


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encryption

[en′krip·shən]
(computer science)
The coding of a clear text message by a transmitting unit so as to prevent unauthorized eavesdropping along the transmission line; the receiving unit uses the same algorithm as the transmitting unit to decode the incoming message.

encryption

(algorithm, cryptography)
Any procedure used in cryptography to convert plaintext into ciphertext (encrypted message) in order to prevent any but the intended recipient from reading that data.

Schematically, there are two classes of encryption primitives: public-key cryptography and private-key cryptography; they are generally used complementarily. Public-key encryption algorithms include RSA; private-key algorithms include the obsolescent Data Encryption Standard, the Advanced Encryption Standard, as well as RC4.

The Unix command crypt performs a weak form of encryption. Stronger encryption programs include Pretty Good Privacy and the GNU Privacy Guard.

Other closely related aspects of cryptograph include message digests.

encryption

The reversible transformation of data from the original (plaintext) to a difficult-to-interpret format (ciphertext) as a mechanism for protecting its confidentiality, integrity and sometimes its authenticity. Encryption uses an encryption algorithm and one or more encryption keys. See encryption algorithm and cryptography.
References in periodicals archive ?
Your encryption solution should have the capability to completely mask the true key value, so that the true key value does not ever need to be revealed to or accessible by an end user, and is never stored as clear text by the encryption application itself.
Allows for multiple levels of password recovery: administrators can recover forgotten passwords, but so can users because Encryption Plus
Between that and CESA, observers are beginning to wonder whether the United States has a consistent encryption policy at all.
Civil liberty groups argue that current policy goes against free speech guaranteed by the First Amendment and that state-of-the-art encryption will protect Latin America and other regions from growing computer crime, fraud and theft.
ZixCorp is the leading provider of hosted email encryption and e-prescribing services.
There are a number of asymmetric key encryption systems but the best known and most widely used is RSA, named for its three co-inventors Rivest, Shamir and Adleman.
There is, for instance, a tacked-on climax that involves terrorists robbing a center where the government stores encryption access codes.
But if encryption policy is set behind closed doors, the privacy of every law-abiding American will be left to the whims of regulators, cops, and spooks.
SafeGuard Easy: Hard disk encryption and pre-boot authentication
Securing the Backup Server: Putting data encryption on the server adds performance overhead--impacting application response and performance.
The White House has used Cold War-era regulations that treat encryption as a weapon to restrict the length of the encryption "keys" that can be exported without first obtaining a license from the Commerce Department.
One of the biggest barriers to the consistent utilization of email encryption is that it often times is difficult for end-users to establish a connection to their intended recipients.