1.Which of the following statements about asymmetric-key encryption is correct? a When using asym…
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Question “1.Which of the following statements about asymmetric-key encryption is correct? a When using asym…”
1.Which of the following statements about asymmetric-key
encryption is correct?
a When using asymmetric-key encryption method, a total of two
keys are necessary in electronic communication between two
parties.
b Employees in the same company share the same public key.
c Most companies would like to manage the private keys for their
employees.
d Most companies would like to use a Certificate Authority to
manage the public keys of their employees.
e Two of the above are correct.
2 Which of the following controls would most likely assure that
a company can reconstruct its financial records?
Security controls such as firewalls
Backup data are tested and stored safely
Personnel understand the data very well
Paper records
3.Asymmetric-key encryption uses which of the following
techniques to allow users to communicate securely?
A message digest.
A 16-bit encryption key.
A public key and a private key.
A digital signature.
4.Which of the following is not one of the main
components of vulnerability management and assessment?
Identification.
Remediation.
Internalization.
Maintenance.
5.A Public Key Infrastructure (PKI) provides the ability to do
which of the following?
Encrypt messages using a private key.
Enable debit and credit card transactions.
Read plaintext.
Issue, maintain, and revoke digital certificates.
6.Which of the following statements is incorrect about digital
signatures?
A digital signature can ensure data integrity.
A digital signature also authenticates the document creator.
A digital signature is an encrypted message digest.
A digital signature is a message digest encrypted using the
document creator’s public key.
Answer
Asymmetric keys are the basis of Public Key Infrastructure (PKI), a cryptographic scheme that requires two keys to decrypt or lock the plaintext and one to unlock the cyphertext. Both functions can be performed by the same key. The public key is made public (public key), while the private key is kept secret (private key). The system allows private communication between the owner of the unlocking key and the public lock/encryption keys if the published one is used. The system acts as a signature verifier for documents that have been locked by the owner with the unlock/decryption keys. This system is also known as asymmetric key cryptography.
1.Which one of the following statements regarding asymmetric key encryption is correct?
A Two keys are required to communicate electronically between two parties using the asymmetric key encryption method.
2 Which control would most likely ensure that a company’s financial records can be reconstructed?
Backup data is tested and safely stored
Conclusion
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