public key encryption

public key encryption
   An encryption scheme that uses two keys. In an e-mail transaction, the public key encrypts the data, and a corresponding private key decrypts the data. Because the private key is never transmitted or publicized, the encryption scheme is extremely secure. For digital signatures, the process is reversed; the sender uses the private key to create the digital signature, which can then be read by anyone who has access to the corresponding public key. This confirms that the message really is from the apparent sender.

Dictionary of networking . 2014.

Look at other dictionaries:

  • public-key encryption — encryption encryption n. the process of converting messages in ordinary language, or other information into a secret coded form that cannot be interpreted without knowing the secret method for interpretation, called the key. Note: Encryption is… …   The Collaborative International Dictionary of English

  • public key encryption — method of encryption which uses a public key to encode and a private key to decode …   English contemporary dictionary

  • public key encryption — noun encryption of digital data using public key cryptography …   Australian-English dictionary

  • Efficient Probabilistic Public-Key Encryption Scheme — EPOC (Efficient Probabilistic Public Key Encryption) is a probabilistic public key encryption scheme.EPOC was developed in 1999 by T. Okamoto, S. Uchiyama and E. Fujisaki of NTT Labs in Japan. It is based on the random oracle model, in which a… …   Wikipedia

  • Public-key cryptography — In an asymmetric key encryption scheme, anyone can encrypt messages using the public key, but only the holder of the paired private key can decrypt. Security depends on the secrecy of that private key …   Wikipedia

  • public-key cryptography — noun A form of cryptography which allows users to communicate securely without previously agreeing on a shared secret key (abbreviation PKC) Syn: asymmetric cryptography, public key encryption …   Wiktionary

  • Public key infrastructure — In cryptography, a public key infrastructure (PKI) is an arrangement that binds public keys with respective user identities by means of a certificate authority (CA). The user identity must be unique for each CA. The binding is established through …   Wikipedia

  • public key infrastructure — An enterprise wide service (i.e. data integrity, user identification and authentication, user non repudiation, data confidentiality, encryption, and digital signature) that supports digital signatures and other public key based security… …   Military dictionary

  • public-key — ˈ ̷ ̷  ̷ ̷ ˈ ̷ ̷ noun Usage: often attributive : a cryptographic element that is the publicly shared half of an encryption code and that can be used only to encode messages * * * public keyˈ adjective (computing) Of a system of cryptography in… …   Useful english dictionary

  • public key system —    (PKS)    An asymmetrical, two key encryption algorithm that transforms data from plain text to cipher text with one key that is made public, and converts cipher text back to plain text with a different key that remains secret …   IT glossary of terms, acronyms and abbreviations

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