COMPUTER FUNDAMENTALS

Detailed explanation-1: -Which of the following refers to a solution designed to strengthen the security if session keys? Q. In cryptography, the term “key stretching” refers to a mechanism for extending the length of a cryptographic key to make it more secure against brute-force attacks.

Detailed explanation-2: -Perfect Forward Secrecy (PFS), also called forward secrecy (FS), refers to an encryption system that changes the keys used to encrypt and decrypt information frequently and automatically. This ongoing process ensures that even if the most recent key is hacked, a minimal amount of sensitive data is exposed.

Detailed explanation-3: -A KEK is used to encrypt other keys, such as the data encryption key or the traffic encryption key, that are used to encrypt sensitive data. Content encryption key (CEK).

Detailed explanation-4: -The secret key method of encryption, which involves the use of a single key, is used to encrypt and decrypt the information and is sometimes referred to as symmetric key cryptography.

Detailed explanation-5: -In cryptography, Master/Session is a key management scheme in which a pre-shared Key Encrypting Key (called the “Master” key) is used to encrypt a randomly generated and insecurely communicated Working Key (called the “Session” key). The Working Key is then used for encrypting the data to be exchanged.