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SHA-256 is part of the SHA-2 family of hash functions with a 256-bit output and a 128-bit security level.

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How to generate the SHA-2 constants?

The SHA spec states - eg, in the case of SHA-224 and SHA-256 - that the constants "represent the first 32-bits of the fractional parts of the cube roots of the first 64 primes". How are these values " …
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