sha1

nimony/lib/std/sha1.nim

SHA-1 (Secure Hash Algorithm 1), 160-bit message digest. Minimal port from Nim's checksums/sha1 — only the bits used by nifchecksums / nifindexes are provided. Byte-swap helpers are inlined since Nimony doesn't have std/endians.

type Sha1Digest = array[0..19, uint8]
type SecureHash = distinct array[0..19, uint8]

type Sha1State = object
  count: int64
  state: array[0..4, uint32]
  buf: array[0..63, uint8]

proc newSha1State(): Sha1State
proc update(ctx: var Sha1State; data: openArray)
proc finalize(ctx: var Sha1State): array[0..19, uint8]
proc $(self: SecureHash): string