A user needs to transmit confidential information to a third party.
Which of the following should be used to encrypt the message?
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A. B. C. D.A.
In this scenario, the user needs to transmit confidential information to a third party. The information needs to be encrypted to protect it from unauthorized access.
Out of the given options, AES, SSL, and RSA are encryption algorithms, whereas SHA-2 is a hash function. Hash functions are used for data integrity, whereas encryption algorithms are used to protect data confidentiality.
AES (Advanced Encryption Standard) is a symmetric encryption algorithm that uses a shared secret key to encrypt and decrypt data. It is widely used and is considered to be a secure encryption standard. AES is used for encrypting data at rest and in transit.
SSL (Secure Sockets Layer) is a protocol that provides secure communication between two parties over the internet. SSL uses a combination of symmetric and asymmetric encryption algorithms, including AES and RSA, to establish a secure communication channel. SSL is commonly used for securing online transactions and communication between web servers and web browsers.
RSA (Rivest-Shamir-Adleman) is an asymmetric encryption algorithm that uses a public key to encrypt data and a private key to decrypt data. RSA is commonly used for secure key exchange and digital signatures.
In this scenario, the best option would be to use RSA for encrypting the message. RSA is an asymmetric encryption algorithm that provides better security than symmetric encryption algorithms like AES. The user can use the recipient's public key to encrypt the message, and only the recipient, who has the corresponding private key, can decrypt the message. This ensures that only the intended recipient can access the confidential information.
Therefore, the correct answer is option D, RSA.