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Chapter 8 Terms

Security+ SY0-501 7th Edition Terms (Chapter 8)

QuestionAnswer
asymmetric cipher Cryptographic algorithms that use two different keys—one key to encrypt and another to decrypt. Also called public key cryptography.
Challenge Handshake Authentication Protocol (CHAP) An authentication protocol that periodically reauthenticates.
collision When two different inputs into a cryptographic hash produce the same output, this is known as a collision.
cryptographic hash A function that is one-way (nonreversible), has a fixed length output, and is collision resistant.
PRNG A pseudo-random number generator is an algorithm used to generate a number that is sufficiently random for cryptographic purposes.
rainbow table A table of precomputed hashes used to guess passwords by searching for the hash of a password.
salt Bits added to a hash to make it resistant to rainbow table attacks.
symmetric cipher Any cryptographic algorithm that uses the same key to encrypt and decrypt. DES, AES, and Blowfish are examples.
X.509 The X.509 standard is the most widely used standard for digital certificates.
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