Using jca in java- 5pgs due in 5hrs

Estimation of time required for brute-force search attack on the password-based encryption

(To use the attached program, do not use your own program,please)

This assignment asks you to estimate the time required for successful brute-force search attack on password-based encryption using JCA in Java. It assumes that you have done Lab 1, Lab2, Lab3 (see attachment).

Need Help Writing Your Essay?

Tell us about your assignment and we will find the best writer for your project

Get Help Now!

Make a list of passwords, mentioned in item 3 of Section 1.2 of Lab 1 instructions (page 2)

For password-based DES encryption implementation in JCA (Lab 2 and Lab 3) fix some salt and iteration count and record an average time required for encryption/decryption (done in Lab 3);

For each of the passwords above estimate the time required for successful brute-force search attack, assuming that an attacker knows:

• the predefined plaintext;

• the ciphertext produced;

• the salt;

• the iteration count;

• but no password.

Investigate how the time required for the attack depends on the iteration count;

Consider a variant of the attack, in which an attacker knows everything as above, except the iteration count, and estimate the time required to recover the passwords;

Compare your estimated time with the estimated time returned for the same passwords by online services (Lab 1, page 2) and propose plausible explanation of any observed differences.

Write a report on the above, providing an evidence for your arguments (e.g. snippets of code used to estimate time required for one encryption).