Richard received an encrypted message sent to him from Sue. Sue encrypted the message using the RSA encryption algorithm. Which key should Richard use to decrypt the message?Group of answer choicesSue’s public keyRichard’s private keyRichard’s public keySue’s private key

If Richard wants to send an encrypted message to Sue using a public key cryptosystem, which key does he use to encrypt the message?Rishard's Public KeyRichard's Private KeySue's Public KeySue's Private key

Which of the following keys is used by the recipient to decrypt a message encrypted using asymmetric encryption algorithm?Group of answer choicesReceiver’s public keySender’s private keySender’s public keyReceiver’s private key

Alice wants to send a confidential message to Bob using the RSA encryption. To ensure that only Bob can read the message, Alice should:Group of answer choicesEncrypt the message with Bob's public key, ensuring that only Bob can decrypt it with his private key, ensuring confidentiality.Encrypt the message with her own public key, allowing Bob to decrypt it with Alice's private key, ensuring non-repudiation.Encrypt the message with her own private key, allowing Bob to decrypt it with Alice's public key, ensuring authenticity.Encrypt the message with Bob's private key, ensuring that anyone with Bob's public key can decrypt it, ensuring integrity.

Govindha wants to digitally sign a message he’s sending to Rama so that Rama can be sure the message came from him without modification while in transit. Which key should he use to encrypt the message digest?Group of answer choicesRama’s public keyRama’s private keyGovindha’s public keyGovindha’s private key

Alice and Bob would like to use an asymmetric cryptosystem to communicate with each other.  They are located in different parts of the country but have exchanged encryption keys by using digital certificates signed by a mutually trusted certificate authority. When Bob receives an encrypted message from Alice, what key does he use to decrypt the plaintext message’s contents?Alice’s public KeyAlice’s private keyBob’s public keyBob’s private key