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12 lines
185 B
Nim
12 lines
185 B
Nim
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import ../poseidon2/types
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import ./permutation
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# 2-to-1 compression
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func compress*(a, b : F, key = zero) : F =
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var x = a
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var y = b
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var z = key
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permInPlace(x, y, z)
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return x
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