pull-hash

crypto hash API using pull-streams

var hash = require('pull-hash')
var pull = require('pull-stream')

pull(
  source,
  hash('sha256', 'hex', function (err, sum) {
    console.log('shasum:', sum)
  }),
  pull.drain()
)

API

var hash = require('pull-hash')

hash(type[, encoding], onEnd): through

Create a through stream that hashes the data and calls onEnd when it is done.

• type: crypto.Hash object, or string to pass to crypto.createHash, e.g. "sha256"
• encoding: encoding for the digest to pass to Hash.digest()
• onEnd(err, digest): callback with digest when stream is ended or errored

Extras

var gitHash = require('pull-hash/ext/git')

gitHash(object[, encoding], onEnd): through

Get a git object id.

• object.type: one of ["commit", "tree", "blob", "tag"]
• object.length || object.size: size in bytes of the git object's data

var ssbHash = require('pull-hash/ext/ssb')

ssbHash(onEnd): through

Get a hash id of a secure-scuttlebutt blob.

License

Copyright (c) 2016 Charles Lehner

Usage of the works is permitted provided that this instrument is retained with the works, so that any entity that uses the works is notified of this instrument.

DISCLAIMER: THE WORKS ARE WITHOUT WARRANTY.