Hashed password, can it be decrypted if I know both values?


I am writing a system where the company wants to retain the passwords from the old system.

So my question is can I decrypt the password if all I know is the encrypted password and the actual password?

Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

The actual password is the decrypted password.
prositAuthor Commented:
Ha, yes I can see how that was bad wording...

I only know one of the passwords (mine) and would like to decrypt the rest.
You can guess the password, hash it, and compare it with the hashed password.
There are ways to (relatively) quickly scan precompiled hashes of large lists of guesses.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Visual Basic.NET

From novice to tech pro — start learning today.