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When using SHA256 + RIPEMD-160, you are not only accumulating two different algorithm, but you are also varying your algorithm vendors, since SHA256 comes from US NSA/NIST and RIPEMD-160 comes from the european academic community. While it is true that SHA-3 has not been directly designed by NSA, it went as a winner from NIST competition, and NSA is more or ...


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SHA256 and MD5 are message digest algorithm. You can only encrypt your data using this algorithms. If you want to validate this data then you need to encrypt that data and compare it to validate it. And as you told brute-force is the only way to get that data back and it's too difficult to decode it. If you realy want tha data back then go for AES/DES ...


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SHA256 and MD5 are hashing algorithms, or "one-way encryption" if you will. A hash function is any function that can be used to map digital data of arbitrary size to digital data of fixed size (Wikipedia (Hash function)) So to get the (probable*) plaintext that was hashed, brute-force is the only way. There are rainbow tables as well as you mentioned ...



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