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IS (Key establishment (Key management (Generation of keys, Distribution of…
IS
Key establishment
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Types of keys
Long-term keys (or static keys): intended to be used for a long time - depending upon the application this may be a few hours or a few months or a few years.
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Short-term keys: (or session keys): intended to be used over a short period - depending upon the application this may be a few seconds or a few hours or a day.
Are used to protect communications in a session, for example with authenticated encryption.
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Security goals
Authentication: If a party completes the protocol and believes that the key is shared with party B then it should
not be the case that the key is actually shared with a different party C.
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