blake2b-stream

blake2b-stream

Node Stream wrapper for Blake2b

Usage

var blakeb2Stream = require('blake2b-stream')

process.stdin.pipe(blake2bStream(function (err, hash) {
  if (err) throw err

  console.log('b2sum:', hash.toString('hex'))
}))

API

var stream = blakeb2Stream([opts], cb(err, hash))

Create a stream that calculates the Blake2b hash when .end()ed. opts include opts.outputLength for the byte length of the hash and opts.key if you want to partition your hash space with a custom key. opts.key must be buffer. The allowed ranges for either argument can be referenced by the constants below. When the source stream ends cb will be called with a Buffer of length opts.outputLenght (which defaults to blake2bStream.BYTES / 32 bytes)

Constants

• blake2bStream.BYTES Default hash length
• blake2bStream.BYTES_MIN Min hash length
• blake2bStream.BYTES_MAX Max hash length
• blake2bStream.KEYBYTES Recommended key length
• blake2bStream.KEYBYTES_MIN Min key length
• blake2bStream.KEYBYTES_MAX Max key length

Install

npm install blake2b-stream

License

ISC