22 lines
635 B
Plaintext
22 lines
635 B
Plaintext
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import "./shaRound" as shaRound;
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// Initial values, FIPS 180-3, section 5.3.3
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// https://csrc.nist.gov/csrc/media/publications/fips/180/3/archive/2008-10-31/documents/fips180-3_final.pdf
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const u32[8] IV = [
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0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
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0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
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];
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// A function that takes N u32[16] arrays as inputs, concatenates them,
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// and returns their sha256 compression as a u32[8].
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// Note: no padding is applied
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def main<N>(u32[N][16] a) -> u32[8] {
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u32[8] mut current = IV;
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for u32 i in 0..N {
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current = shaRound(a[i], current);
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}
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return current;
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}
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