Blake2b (64-bit version) in pure Javascript
npm install blake2bblake2b
> Blake2b (64-bit version) in pure Javascript
This module is based on @dcposch
implementation of BLAKE2b, with some changes:
* This module requires you to pass in a out buffer, saving an allocation
* This module allows you to set the salt and personal parameters
* This module exports constants for the parameters in libsodium style
* Uses a WASM version (where it is supported) for massive performance boosts
All credit goes to @dcposch for doing the hard work of porting the
implementation from C to Javascript.
``js
var blake2b = require('blake2b')
var output = new Uint8Array(64)
var input = Buffer.from('hello world')
console.log('hash:', blake2b(output.length).update(input).digest('hex'))
`
Create a new hash instance, optionally with key, salt andpersonal. Bypass input assertions by setting noAssert to true.
All parameters must be Uint8Array, Buffer or another object with a compatibleAssertionError
API. All parameters must also fulfill the following constraints, or an will be thrown (unless noAssert = true):
* outLength must within the byte ranges defined by the constants below.key
* is optional, but must within the byte ranges defined by the constantssalt
below, if given. This value must be kept secret, and can be used to create
prefix-MACs.
* is optional, but must be exactly SALTBYTES, if given. You can usepersonal
this parameter as a kind of per user id, or local versioning scheme. This
value is not required to be secret.
* is optional, but must be exactly PERSONALBYTES, if given. You can
use this parameter as a kind of app id, or global versioning scheme. This
value is not required to be secret.
Update the hash with new input. Calling this method after .digest will throw
an error.
Finalise the the hash and write the digest to out. out must be exactly equaloutLength
to given in the blake2b method.
Optionally you can pass hex to get the hash as a hex string or no arguments
to have the hash return a new Uint8Array with the hash.
* blake2b.BYTES_MIN Minimum length of out
* Maximum length of out
* Recommended default length of out
* Minimum length of key
* Maximum length of key
* Recommended default length of key
* Required length of salt
* Required length of personal
`sh`
npm install blake2b
This repository includes test vectors with
{outlen, out, input, key, salt, personal}` objects for testing conformance
against the spec and other implementations:
* Lines 2 - 257 are tests for hashing with no key, taken from BLAKE2 test vectors
* Lines 258 - 513 are tests for hashing with keys, taken from BLAKE2 test vectors
* Lines 514- 577 are tests for hashing with key, salt and personalisation, derived from the libsodium tests