To enable a password-based authentication of users, it has been decided to use one of the...

Question

Question

To enable a password-based authentication of users, it has been decided to use one of the following two approaches to store password information:

1. Store user name U_name next to the hash SHA-512 (password_u) of the user password, using the hash function SHA-512.

2. Store the user name U_name along with a 64-bit random value r_u and SHA-224 (passwordd_u{2 vertical lines}r_u) using SHA -224.

Which approach is preferable and why?

Answer 1

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