How to Decrypt the encrypted string using CryptoJS (SHA512)

Question

I am using CrypstoJS ( from https://code.google.com/p/crypto-js ) for the encryption and decryption.

I encrypted a string as shown below:

var hash = CryptoJS.HmacSHA512("Message", "Secret Passphrase");

Then how to decrypt it??? I want to use SHA512 for encryption/decryption.

Please help me..

Answer 1

From the documentation:

Keyed-hash message authentication codes (HMAC) is a mechanism for message authentication using cryptographic hash functions.

You can't decrypt it. It is hashed, not encrypted.

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If you want to decrypt your data, then use a cipher function instead of a hash function.

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That said, most of the time, when people want to do encryption/decryption with JavaScript, they should be using SSL instead.