Aka "message digest" - one way shortened representation of plain text that's often used to store passwords but can also be used to verify download versions match original versions of files
. Use hashes to provide authentication, integrity, and non-repudiation to a document
. When 2 different message inputs create exactly the same hash - we NEVER want this to occur
. A type of nonce that added to a hash to further confuse matters - used in password hashing
. Arbitrary number used just one time that is random and added to an algorithm or process and added to a hash during authentication - prevents replay attacks
. A type of nonce used in older encryption schemes, like with WEP and older SSL implementations
. Hash a hash, then hash that hash, and so on....makes weak keys stronger and helps stop brute force
. Manually giving the key or telling the key - not passed over the internet
. Pass over the network using assymetic encryption to transfer a symetric key
. Temporary key used as session key during the in-band exchange process - must be changed often and random
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