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April 10th, 2011, 03:19 AM   #1
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Joined: Dec 2007
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Is SHA-512 enough ?

Hello everyone,
I am currently developing a platform and needs some hashing algorithm in order to mask my users' passwords. While md5 was appropriate for a while, it is now easily cracked. Therefore I decided to turn to the sha family of algorithms, and in particular to sha 512 (augmented with a nontrivial salt).
In order to increase cracking time, I added to the salt a "random salt" between x and x+100000, thereby multiplying cracking time, on average, by 50000.
While this might all seem very reasonable, passwords hashed in such a way would still be crackable by an organization equiped with several powerful servers ... do you believe I should take further measures and completely encrypt all sensitive date ?
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November 29th, 2011, 02:40 AM   #2
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Re: Is SHA-512 enough ?

It should suffice to say whether bcrypt or SHA-512 is good enough. And the answer is yes, either algorithm is secure enough that a breach

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