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| 1 - 7 of 7 in Definitions |
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challenge-response system
16 Feb 2004
WORD - A challenge-response system is a program that replies to an e-mail message from an unknown sender by subjecting the sender to a test (called a CAPTCHA) designed to differentiate humans from automated senders. The system ...
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asymmetric cryptography
08 Jul 2002
WORD - Asymmetric cryptography is cryptography in which a pair of keys is used to encrypt and decrypt a message so that it arrives securely. Initially, a network user requests a public and private key pair. A user who wants to send ...
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steganography
24 Jul 2002
WORD - Steganography (pronounced STEHG-uh-NAH-gruhf-ee, from Greek steganos, or "covered," and graphie, or "writing") is the hiding of a secret message within an ordinary message and the extraction of it at its destination. ...
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cipher block chaining
08 Oct 2000
WORD - Also see cryptography.
Cipher block chaining (CBC) is a mode of operation for a block cipher (one in which a sequence of bits are encrypted as a single unit or block with a cipher key applied to the entire block). Cipher ...
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plaintext
31 Jul 2001
WORD - In cryptography, plaintext is ordinary readable text before being encrypted into ciphertext or after being decrypted.
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cipher
24 Jul 2001
WORD - A cipher (pronounced SAI-fuhr) is any method of encrypting text (concealing its readability and meaning). It is also sometimes used to refer to the encrypted text message itself although here the term ciphertext is ...
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anonymous email
WORD - Anonymous e-mail is e-mail that has been directed to a recipient through a third-party server that does not identify the originator of the message.
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| 1 - 7 of 7 in Definitions |
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