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A cryptographic hash algorithm is a function which takes a variable size input and produces a fixed size output. The algorithm makes it difficult to find two inputs with the same output or reconstruct the input from the output.

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What security differences are there between E(p',"well-known-plaintext") vs. hash(p') where ...

I understand that bcrypt uses the derived key with Blowfish to encrypt "OrpheanBeholderScryDoubt" 64 times to create a password hash. … Edit: Further research The SHA-2 functions are based on the Merkle–Damgård construction, which is a method of creating a hash from a block cipher. …
Terrel Shumway's user avatar