COMPUTER FUNDAMENTALS

COMPUTER ETHICS AND SECURITY

CRYPTOGRAPHY AND ENCRYPTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following answers refers to a solution designed to strengthen the security of session keys?
A
ECB
B
PFS
C
EFS
D
PFX
Explanation: 

Detailed explanation-1: -Which of the answers listed below refers to a solution designed to strengthen the security of session keys? 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 hardware security module (HSM) is a physical device that provides extra security for sensitive data. This type of device is used to provision cryptographic keys for critical functions such as encryption, decryption and authentication for the use of applications, identities and databases.

Detailed explanation-4: -The TLS (historically known as “SSL") protocol uses both asymmetric/public key and symmetric cryptography, and new keys for symmetric encryption have to be generated for each communication session. Such keys are called “session keys."

Detailed explanation-5: -AES. The Advanced Encryption Standard (AES) is the trusted standard algorithm used by the United States government, as well as other organizations. Triple DES. RSA. Blowfish. Twofish. Rivest-Shamir-Adleman (RSA). 11-Nov-2022

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