Which of the following are used to substantially increase the computation time required to crack a...
Which of the following are used to substantially increase the computation time required to crack a password? (Select TWO).
- BCRYPT
- Substitution cipher
- ECDHE
- PBKDF2
- Diffie-Hellman
Homework Answers
Solution:
1. BCRYPT
Bcrypt uses a modified key setup algorithm which is timely quite expensive. This is called key strengthening, and makes a password more secure against brute force attacks, since the attacker now needs a lot more time to test each possible key.
2. Diffie-Hellman
The D-H key algorithm is used primarily to generate symmetric shared security keys across insecure public networks. D-H Groups are responsible for the strength of the keys used in the exchange of data through public networks. The higher the number, the higher the security will be. However, with higher number groups it takes much longer to compute the key.
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