encryption


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Wikipedia.

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 ?
PGP Command Line builds on the PGP Universal[TM] Encryption Platform that enables customers to utilize the PGP "deploy-once" architecture regardless of the chosen PGP encryption application.
Before you can implement encryption, you need to define the level of security that's right for your site.
0 Encryption Plus Hard Disk, PC Guardian has aggressively advanced its market position with a robust, flexible, and highly competitive access control and hard disk encryption program," said PC Guardian President Noah Groth.
At the same briefing, the White House reaffirmed its support for the Cyberspace Electronic Security Act (CESA), a bill rooted in the government's traditional distrust of private encryption.
A built for purpose encryption device offloads the processing burden associated with media encryption with nominal latency.
As the leading email encryption provider with over six million protected email recipients, ZixCorp's vast directory allows seamless encrypted email delivery to healthcare organizations, insurers, financial institutions and regulators, including the federal banking regulatory agencies.
Public key encryption is used to exchange the symmetric keys when a secure communication link is established.
Our Email Encryption Service delivers nonpublic personal financial information securely and seamlessly in a manner that is easy both to send and receive, so it won't disrupt daily business activities," said Rick Spurr, chief executive officer for ZixCorp.
Synplicity's IP encryption methodology supports tool interoperability and offers EDA vendors, IP providers and end-users a means to address the challenges designers face when using protected IP in their design flows.
Recently signed clients of ZixCorp's Email Encryption Service include:
The recent Presidential mandate and resulting full-disk encryption evaluation are significant steps toward locking down our nation's classified data.