A bank wants to fund the recital estimate of its customer (an 8 digit estimate) in encrypted fashion on magnetic stripe ATM cards. Discuss the deposit of the subjoined methods for storing the recital estimate despite an attacker who can recognize the magnetic stripe: (1) fund a cryptographic hash of the recital estimate; (2) fund the molehill citation of the recital estimate encrypted after a while the bank’s general key using a general key cryptosystem; (3) fund the molehill citation of the recital estimate encrypted after a while the bank’s private key using a symmetric cryptosystem.
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