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Key Generation In symmetric key system, keys are generated randomly while asymmetric keys are usually generated using a function. The resultant key depends on the use of large prime numbers. Input to the function is still randomly selected |
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Key transmission This process endures the integrity of the key when being transmitted. If the key has to be transmitted manually, it is safer to break it into at least three parts. Else, the key-encrypting key method can be employed to ensure key integrity |
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Key Indexes This option requires several sets of key to be generated. There is an index that is associated with these sets of keys. When the key is stored, the index remains with it. Smart cards can be loaded with two or more keys and they advance to the next key when instructed. It usually happens in the beginning of the next transaction. |
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