An encryption technique that uses two different keys for encryption and decryption
An encryption technique that uses the same key for both encryption and decryption
An encryption technique that uses public and private key pairs
An encryption technique that uses a combination of symmetric and asymmetric algorithms
Which of the following is an example of an asymmetric encryption algorithm?
RSA
AES
DES
Blowfish
What are the main advantages of asymmetric cryptography over symmetric cryptography?
Asymmetric cryptography provides stronger encryption than symmetric cryptography.
Asymmetric cryptography is faster than symmetric cryptography.
Asymmetric cryptography provides features like secure key exchange, digital signatures, and secure communication without requiring a shared secret key.
Asymmetric cryptography is more efficient for large-scale data transmission.
What are the two fundamental operations in asymmetric cryptography?
Key Generation and Data Compression
The two fundamental operations are encryption using the recipient's public key and decryption using the recipient's private key
Encryption and Decryption
Data Integrity and Hashing
What is the role of the private key in asymmetric cryptography?
The private key is kept secret and is used for decrypting messages that have been encrypted with the corresponding public key.
The private key is used for encrypting data.
The private key is used for verifying digital signatures.
The private key is used for establishing secure communication channels.
How does asymmetric cryptography provide secure key exchange?
Asymmetric cryptography uses a shared secret key that is distributed to all parties involved.
Asymmetric cryptography uses a random key generated during the encryption process.
Asymmetric cryptography relies on a central authority that securely distributes the keys to all parties.
With asymmetric cryptography, one party can encrypt data using the recipient's public key, ensuring that only the recipient with the corresponding private key can decrypt it.
What is the purpose of a digital signature in asymmetric cryptography?
A digital signature in asymmetric cryptography is used to encrypt the data to ensure its confidentiality.
The purpose of a digital signature is to generate a unique identifier for the encrypted data.
A digital signature provides data integrity and non-repudiation, allowing the recipient to verify that the message was sent by the claimed sender and that it has not been tampered with.
Digital signatures in asymmetric cryptography are used to authenticate the identity of the sender of the encrypted message.
"Name a widely used asymmetric encryption algorithm.
RSA (Rivest-Shamir-Adleman).
DES (Data Encryption Standard).
AES (Advanced Encryption Standard).
CH4 (Channel 4).
What is the key length in asymmetric cryptography?
The key length in asymmetric cryptography is irrelevant as it does not affect the security of the encryption.
Key lengths in asymmetric cryptography are typically longer than symmetric cryptography, often ranging from 1024 bits to 4096 bits or more.
Key lengths in asymmetric cryptography are typically less than symmetric cryptography, often ranging from 1024 bits to 4096 bits or less.
The key length in asymmetric cryptography determines the number of encryption keys generated.
How are public and private keys related in asymmetric cryptography?
Public and private keys in asymmetric cryptography are completely independent and unrelated to each other.
Public and private keys in asymmetric cryptography are generated from the same shared secret key.
Public and private keys in asymmetric cryptography are interchangeable and can be used interchangeably for encryption and decryption.
Public and private keys are mathematically related, generated as a key pair. The public key is derived from the private key, but it cannot be used to determine the private key.
Can asymmetric cryptography provide data confidentiality?
Yes, asymmetric cryptography can be used for data confidentiality by encrypting the data with the recipient's public key.
No, asymmetric cryptography cannot provide data confidentiality.
Asymmetric cryptography can only provide partial data confidentiality.
Asymmetric cryptography is too weak to ensure data confidentiality.