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 ?
Cipher Systems is headquartered in Calgary, Alberta and employs over 58 people.
Cipher Systems is one of the 50 Fastest-Growing Technology Companies in Canada.
SCIP and Cipher Systems have jointly developed this survey with the help of a panel of advisors, all experts in the field of competitive intelligence.
Microsoft is committed to partnering with companies like Cipher Systems to enable KM solutions," Stevens said.
Company: Cipher Systems Headquarters Address: 2200 Defense Highway Suite 400 Crofton, MD 21114 Main Telephone: 410.
area broad based technology products and services company, announced today that it had signed a Strategic Alliance Agreement with Cipher Systems, Ltd.
Cipher Systems builds competitive intelligence workflow applications and Domino Extended Search is a fantastic complement to our products," said Brooke Aker, president of Cipher Systems.
Nasdaq: METZ), and Cipher Systems have joined forces to offer leading edge Competitive Intelligence products to the utilities industry.
Recent contracts with Automobile Association of South California (ACSC) and Boston Fed BankCorp, and the acquisitions of CRM leader Cipher Systems, Calgary, Alberta, and consulting leader The Hunter Group, Baltimore, Md.
announced today that it has acquired Cipher Systems Ltd.