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19 lines
406 B
Nim
19 lines
406 B
Nim
import ./types
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import ./roundfun
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# the Poseidon2 permutation (mutable, in-place version)
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proc permInPlace*(x, y, z : var F) =
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linearLayer(x, y, z)
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for j in 0..3:
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externalRound(j, x, y, z)
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for j in 0..55:
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internalRound(j, x, y, z)
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for j in 4..7:
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externalRound(j, x, y, z)
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# the Poseidon2 permutation
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func perm*(xyz: S) : S =
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var (x,y,z) = xyz
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permInPlace(x, y, z)
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return (x,y,z)
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