Definitions for **"Public Key Cryptography"**

A cryptographic system that uses two keys - a public key known to everyone and a private key known only to the recipient of the message. IKE provides public keys for IPsec.

A coding system in which encryption and decryption are done with public and private keys, allowing users who don't know each other to send secure or verifiable messages. Suppose Fred wants to send a message. He would encrypt it with his private key, which no one else knows; then the recipient would decrypt it using Fred's publicly available key, thus verifying that the message came from Fred. Alternately, suppose Fred wants to receive an encrypted message. The sender would encrypt the message with Fred's public key and only Fred would be able to decrypt it using his private key. This method, also known as dual-key or symmetric cryptography, in which the sender and recipient must agree on and use the same private for encryption and decryption.

An encryption system that uses a matched pair of mathematical keys, one private and the other public. Private keys are used to digitally sign electronic payments or other documents and to decrypt email messages and electronic payments. Keyholders provide the matching public keys to their correspondents, who use them to verify the digital signatures and to encrypt email and electronic payment instructions.

Encrypting information by using two different mathematically related keys for encrypting and decrypting. I encrypt a message with my private key and you decrypt it with my public key, which you've looked up on a directory server or I've given you. If you want to send me a message you encrypt it with my public key and I unlock it with my private key.

A system of encryption that uses two different keys. One is kept secret, the other given away freely. A message encrypted with the private key can only be decrypted with the public key. Thus, the origin of a message can be guaranteed. On the other hand, a message encrypted with the public key can only be decrypted with the private key. As a result, a message can be preserved only for the eyes of the recipient.

A kind of software algorithm based on pairs of numerical keys, one public and one private, for encrypting e-mail and other network transactions.

A method of encrypting data transmissions to and from a server.

A procedure that uses a pair of keys, a public key and a private key, for encryption and decryption, also known as an asymmetric algorithm. A userâ€™s public key is publicly available for others to use to send a message to the owner of the key. A userâ€™s private key is kept secret and is the only key that can decrypt messages sent encrypted by the userâ€™s public key.

Type of cryptography in which the encryption process is publicly available and unprotected, but in which a part of the decryption key is protected so that only a party with knowledge of both parts of the decryption process can decrypt the cipher text.

A type of cryptography that uses a key pair of mathematically related cryptographic 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.

A method for sending secret messages whereby you get to keys: a public key you give out freely so that people can give you secret messages and a second, a private key that decodes them.

cryptographic method that uses a two-part key (code) that is made up of public and private components. To encrypt messages, the published public keys of the recipients are used. To decrypt the messages, the recipients use their unpublished private keys known only to them.

Also known as an asymmetrical key encryption. A public key cryptographic system uses two different keys for encoding and decoding of messages. The public key is known to everyone while the private key is known only to its owner. When encrypting a message, the sender uses the recipient's public key. Thus, only the recipient can decrypt the message using the matching private key.

GoldMoney uses public key cryptography. This technology is designed to ensure a high level of security in the transfer of data through the use of complex algorithms.

Public key cryptography uses a key for encryption and a different key for decryption. Although the keys are related, it is not possible to calculate the decryption key from only the encryption key in any reasonable amount of computation time. In most practical systems, the public key system is used for encoding a session key which is used with a symmetric system to encode the actual data. RSA is an example of a public key algorithm.

Public Key Cryptography is a system involving a pair of keys, one public and one private. Each key can be used to encrypt information, which can only be decrypted with the other key. In order to send an encrypted transmission to someone, you use their public key. Only their private key can be used to decrypt the message. In order to prove a message's authenticity, you encrypt it with your private key. Anyone can decrypt the message using your public key, but the use of your public key proves it was your private key which encrypted the message in the first place. In comparison to symmetric-key cryptography, public key cryptography is computationally intensive. However the obstacle of sharing a single private key is overcome. See also Certificate, Certificate Authority. S.P. Acronym for Service Provider. See also S.P..

A mathematical technology enabling private communication of data over public channels (even when the parties involved are not previously known to each other) and unforgeable digital signatures that can be used to conclusively prove the origin of a message. In public-key cryptography, instead of a single secret key, one uses a pair of complementary keys, each of which can unscramble messages scrambled with the other. However, because of the mathematics underlying PKC, knowing one key of the pair does not make it practical to guess or calculate the other. A PKC user can make one key of the pair his public key, known to the world, and keep the other as his private key.

A technique that uses a pair of keys for encryption and decryption. One key is used by the sender to encrypt the message, namely the public key. The other key, the private key is used to decrypt the message received from the sender.

Public Key Cryptography uses a pair of related keys-a public key, which is freely distributed and can be seen by all users; and a corresponding unique private key, which is kept secret and not shared among users. Thereby ensuring privacy and verifying the identity of the sender. These keys can be gained from a Certificate Authority (CA) such as VeriSign, Inc.

A method of cryptography in which two different but complimentary keys are used: a public key and a private key for providing security functions. Public key cryptography is also called asymmetric key cryptography. See also cryptography; public key; private key.

A system of securing data that uses two keys to scramble and decipher messages. One key is known as a 'public key' and is widely distributed. The other is called a 'private key' and is held secretly by an individual. Messages are protected by scrambling them with the public key of the person you are sending a message to. Computer algorithms ensure that only the private key held by the person you are emailing can decrypt or unscramble the message.

A method for creating two keys (also called a key pair) that can be used to encrypt and decrypt messages. One of the two keys, the public key, is widely published, while the other key, the private key is kept secret. When you want to encrypt a message for a recipient, you use that recipient's public key; only someone with the private key can decrypt the message. When you want to digitally sign a message, you use your private key; anyone with your public key can then check the signature and verify that only you could have signed the message.

This form of encryption uses two parts. The public key is used for encryption exclusively for the recipient while the private key is known only to the recipient and is used for decryption. This technology is used in OpenPGP email messages to encrypt email. There are no definitions for this letter.

A public key cipher is one in which the key used for encryption is different from the one used for decryption. Although the keys are related, it is not possible to calculate the decryption key from only the encryption key in any reasonable amount of computation time. In most practical systems, the public key system is used for encoding a session key which is used with a symmetric system to encode the actual data. The same concept is used for making digital signatures, where the secret key is used to make the signature, and the public key is used to verify it. RSA and DSA are examples of a public key algorithms.

A form of asymmetric encryption where all parties possess a pair of keys, one private and one public, for use in encryption and digital signing of data

Public key cryptography involves information encryption and decryption using a shared public key paired with private keys. Provides for secure, private communications within a public network.

Each user has a key-pair containing both a public and a private key. The keys act as complements, and anything encrypted with one of the keys can be decrypted with the other. Public key cryptography is the same as public/private key system.

The study and application of asymmetric encryption systems, which use one key for encryption and another for decryption. A corresponding pair of such keys constitutes a key pair. Also called Asymmetric Cryptography. See: SSL/TLS Encryption

a form of cryptography that utilizes a cryptographic algorithm which uses two related keys: a public key and a private key. The two keys have the property that, given the public key, it is computationally infeasible to derive the private key. Public key cryptography is also called "asymmetric cryptography." There are three broad functions of public key cryptography systems: (1) encryption/decryption; (2) digital signatures; and (3) key exchange. Some algorithms can perform all three functions and some can perform only one.

A type of cryptography also known as asymmetric cryptography that uses a unique Key Pair of mathematically related numbers. The Public Key can be made available to anyone who wishes to use it, while its holder keeps the Private Key secret. Either key can be used to encrypt information or generate a Digital Signature, but only the corresponding key can decrypt that information or verify that Digital Signature. (See Digital Signature, Key Pair, Private Key, Public Key.)

A method of cryptography in which two different keys are used: a public key for encrypting data and a private key for decrypting data. Public key cryptography is also called asymmetric cryptography. See also: cryptography; Public Key Cryptography Standards (PKCS); private key; public key

Cryptography in which a public and private key pair is used, encrypting the data at the sender's end and decrypting it at the receiver's end. Since the data is encrypted while it travels the public Internet, no additional security is needed -- it can safely use public networks without loss of confidentiality. See also asymmetric key and key pair.

A cryptographic system in which messages are encrypted with a key split into two parts.