Definitions for **"Public Key Encryption"**

System of encrypting electronic files using a key pair. The key pair contains a public key used during encryption, and a corresponding private key used during decryption.

An encoding scheme that uses a public key to encrypt data, which can be decrypted with the corresponding private or secret key (or, alternatively, one that encrypts using a secret key and decrypts with a public key).

public key encryption - A method of encryption that uses a pair of mathematically related keys: a public key and a corresponding private key. Either key can be used to encrypt data, but the corresponding key must be used to decrypt it. Also called asymmetric encryption.

Encryption that uses a key pair of mathematically related encryption keys. The public key can be made available to anyone who wishes to use it and can encrypt information or verify a digital signature; the private key is kept secret by its holder and can decrypt information or generate a digital signature. This permits users to verify eachother's messages without having to securely exchange secret keys.

An encryption method that uses the concept of a keyâ€“ring. The keyâ€“ring uses a public and private key. The public and private keys are intended to work together.

An encryption method that involves the use of two codes or keys. The two keys, one called the private key and the other called the public key, are assigned to an individual. Using the public key anyone can encrypt a message or file that can only be decrypted or decoded by the use of the corresponding private key.

A strong encryption method that uses a set of two "keys," one of which is made public, and one of which is kept private. Data encrypted using the public key can only be decrypted using the private key. The longer the keys, the more difficult it is to break the encryption.

A method of encryption in which different keys are used to encrypt and decrypt. Sometimes referred to as asymmetric key cryptography

Encryption process that uses two encryption keys: a public key and a private key, and both are needed when encrypting and decrypting data. Also called asymmetric key encryption. 12.17 Public key method, 12.24

An encryption mechanism where two keys are used. A public key is used to encrypt the message and a secret private key to decrypt the message.

A method for securing information that requires the issuance of a pair of keys - one private, one public. One is used to encrypt and the other to decrypt. For instance, if I wanted to send a credit card number via this method, I would use my private key to encrypt the number and the merchant I sent it to would use my public key to decrypt the information. The issuance of key pairs is done by a Certification Authority . This is a method of securing interactions on the Internet.

A method of encrypting electronic data. Developed to account for weaknesses in symmetric encryption, public key encryption does not require the transmission of decoding keys themselves.

A method used to alter information. It uses a different key for the encryption and a different key for the decryption.

A form of asymmetric encryption in which encryption and decryption are performed using two separate keys. One key is referred to as the public key, the other as the private key. The public key is made available to everyone and is used to encrypt a message. The owner of the public key receives a message encrypted with his public key and then decrypts the message with his private key, the only key that can decrypt the message.

An encryption scheme, introduced by Diffie and Hellman in 1976, where each person gets a pair of keys, called the public key and the private key. Each person's public key is published while the private key is kept secret. Messages are encrypted using the intended recipient's public key and can only be decrypted using his private key. The need for sender and receiver to share secret information (keys) via some secure channel is eliminated: all communications involve only public keys, and no private key is ever transmitted or shared. Return to the top

The process where the sender of a message encrypts the message with the public key of the recipient. Upon delivery, the message is decrypted by the recipient using its private key.

the method of coding, developed for the purpose of overcoming the main disadvantage in symmetrical cryptography - the need for having reliable channel for the transfer of key to addressee.

An asymmetric encryption scheme that uses a pair of keys for encryption: the public key encrypts data, and a corresponding secret key decrypts it. For digital signatures, the process is reversed: the sender uses the secret key to create a unique electronic number that can be read by anyone possessing the corresponding public key, which verifies that the message is truly from the sender.

An asymmetric form of Encryption in which the keys or Digital certificates (keys) used by the sender and receiver of information are different. The two keys are related, so only the pair of Key s can be used together to encrypt and decrypt information.

Everyone using this system has two keys, a public key (available to the public) and a private key (to be kept secret). If Person A wants to send Person B a document, Person A encodes it using person B's "public key." Once it's been encoded, only Person B's "private key" can decode it.

See definition for: asymmetric encryption

A common encryption method that uses an asymmetric key pair to encrypt and decrypt messages.

A method of encryption that uses two encryption keys that are mathematically related. One key is called the private key and is kept confidential. The other is called the public key and is freely given out to all potential correspondents. In a typical scenario, a sender uses the receiver's public key to encrypt a message. Only the receiver has the related private key to decrypt the message. The complexity of the relationship between the public key and the private key means that, provided the keys are long enough, it is computationally infeasible to determine one from the other. Public key encryption is also called asymmetric encryption. See also: encryption; private key; public key; symmetric encryption

A technique that uses two encryption keys. Each communicating party has a "private" key for decrypting messages and a "public" key that is easily available to anyone. Thus, anyone can use the public key to encrypt a message, but only the private key holder can decrypt it. This is a simpler and more scalable system than having every pair of partners maintain its own keys.