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Questions and Answers
What is the most widely used public-key cryptosystem?
What is the most widely used public-key cryptosystem?
- DES
- AES
- DSA
- RSA (correct)
What issue arises with Public Key Cryptography that compromises secrecy?
What issue arises with Public Key Cryptography that compromises secrecy?
- The sender encrypts the message with the recipient's private key
- Anybody can decrypt the message using the recipient's public key (correct)
- Both parties need to have the same private key
- The sender signs the message with the sender's public key
In asymmetric encryption, what is the main factor that makes RSA difficult to attack?
In asymmetric encryption, what is the main factor that makes RSA difficult to attack?
- Finding prime factors of composite numbers (correct)
- Type of encryption algorithm used
- Size of the key
- Number of encryption rounds
What does the sender use to provide authentication in Public Key Cryptography?
What does the sender use to provide authentication in Public Key Cryptography?
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What defines asymmetric encryption from a user's perspective regarding message decryption and signature creation?
What defines asymmetric encryption from a user's perspective regarding message decryption and signature creation?
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What problem in symmetric encryption does public-key cryptography attempt to address?
What problem in symmetric encryption does public-key cryptography attempt to address?
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Which key in asymmetric cryptography is known to everybody and used for encryption?
Which key in asymmetric cryptography is known to everybody and used for encryption?
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What is the purpose of key exchange in Public Key Cryptography?
What is the purpose of key exchange in Public Key Cryptography?
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How is encryption for secrecy achieved in Public Key Cryptography?
How is encryption for secrecy achieved in Public Key Cryptography?
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