def blocks

bend-collections-laws-crypto@1.0.0.0 · spec/crypto/poly1305.bend:97

import Base

97# The message cut into 16-byte blocks, the last one possibly shorter; fuel
98# bounds the number of blocks (the length of the message is enough).
99def blocks(fuel: Nat, +msg: List<&2, U32>) -> List<&2, List<&2, U32>>:
100  match fuel msg:
101    case 0n _: Nil{}
102    case 1n+k Nil{}: Nil{}
103    case 1n+k b <> rest: prefix(16n, b <> rest) <> blocks(k, suffix(16n, b <> rest))