Argon2.hash: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/crypto/argon2/argon2.bend as Argon2
Lines 101-106 of bend-collections-laws-crypto@1.0.0.0/spec/crypto/argon2/argon2.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/argon2/argon2.bend&start_line=101&end_line=106

import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake2b/types.bend as T
import bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake2b.bend as B

# H^nn(bs): BLAKE2b with an nn-byte digest, 1 <= nn <= 64: the first nn bytes
# of h after the dd = max(1, ceil(ll / 128)) blocks.
def hash(+nn: Nat, +bs: List<&2, U32>) -> List<&2, U32>:
  +ll = List.length(&2, U32, bs)
  +n = Nat.div(Nat.sub(ll, 1n), 128n)
  List.take(&2, U32, chain_bytes(B.blocks(n, 0, Nat.sub(ll, Nat.mul(n, 128n)), T.C{0, 0, 0, 0}, (pack(bs), initial(U32.from_nat(nn))))), nn)

Uses (15):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.length
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.take
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.div
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.mul
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.from_nat
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/argon2/argon2.bend&name=chain_bytes
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/argon2/argon2.bend&name=initial
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/argon2/argon2.bend&name=pack
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake2b.bend&name=blocks
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake2b/types.bend&name=Counter