I have a string that was salted, hashed with SHA-256, then base64 encoded. Is there a way to decode this string back to its original value?
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I have a string that was salted, hashed with SHA-256, then base64 encoded. Is there a way to decode this string back to its original value?
SHA-256 is a cryptographic (one-way) hash function, so there is no direct way to decode it. The entire purpose of a cryptographic hash function is that you can’t undo it.
One thing you can do is a brute-force strategy, where you guess what was hashed, then hash it with the same function and see if it matches. Unless the hashed data is very easy to guess, it could take a long time though.
You may find the question “Difference between hashing a password and encrypting it” interesting.