encryption and decryption of values using sha2 in php?

Question

I am trying to encrypt a value and sending it through the URL. How do I encrypt and decrypt passwords or any value using the sha2() function in PHP?

please help. thanks in advance.

so how do i do the encription and the decryption? @Matteo Tassinari — Utkarsh Singh, Jan 22 '14 at 09:21
@UtkarshSingh You *don't* with a hash function. The linked questions/answers explains why. — user2864740, Jan 22 '14 at 09:21
Another useful read: http://stackoverflow.com/questions/326699/difference-between-hashing-a-password-and-encrypting-it — user2864740, Jan 22 '14 at 09:24

score 2 · Answer 1 · answered Jan 22 '14 at 09:22

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You can't decrypt password encrypted using sha2. You can encrypt value which user entered in form and compare it with this stored in ex. mysql database.

answered Jan 22 '14 at 09:22

darkanzali

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Arg, *why did you say ["encrypt"](http://en.wikipedia.org/wiki/Encryption)?* Incorrect terminology started - and perpetuates - this whole genre of question! Hashing is *not* encryption. – user2864740 Jan 22 '14 at 09:23
@user2864740 You're right, my mistake. – darkanzali Jan 22 '14 at 09:44

encryption and decryption of values using sha2 in php?

1 Answers1