Cryptographic algorithms

Cryptographic algorithms operate faster than cryptographic algorithms when using the same length key. James recently received a secret message from Martha containing an order for custom services. He would like to be able to prove that Martha sent the message and that it could not be forged. What cryptographic goal is James attempting to achieve? a. Confidentiality b. Nonrepudiation c. Security through obscurity d. Integrity e. Authentication

Richard received a message from Matthew that was encrypted using a symmetric cryptosystem. What key should Richard use to decrypt the message? a. Matthew’s public key b. Matthew’s private key c. Richard’s public key d. Richard’s private key e. Shared secret key Which of the following cryptographic concepts has been widely discredited among the information security community? a. Confidentialit b. Nonrepudiation c. Security through obscurity d. Integrity e. Authentication

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