@sequencemedia/pbkdf2 NPM

@sequencemedia/pbkdf2

Compare a given password to a `hash` and `salt`

Exposes the crypto pbkdf2 utilities as async functions for Node and the shell

ES functions are exported from the package root alongside a TS definition

Password validation by `hash` and `salt` comparison

A password can be compared with a hash and salt (and the number of iterations that were used to compute it) to determine whether it is valid

The ES functions expect the same argument types as the underlying Node utilities

The hash is a Buffer
The salt is a Buffer
iterations is a Number
keylen is a Number
digest is a String

Etc.

`compare`

The password is expected as the first argument, while the others are fields on a params object

const isValid = await compare(password, {
  hash,
  salt,
  iterations,
  keylen,
  digest
})

`hash`

As with compare, the password is expected as the first argument, while the others are fields on a params object (except for hash which can of course be omitted)

const value = await hash(password, {
  hash,
  iterations,
  keylen,
  digest
})

`salt`

An async wrapper around crypto.randomBytes() to generate a salt of the salt size

const value = await salt(size)

In the shell

Scripts are exposed to npm in the package and each script can of course be invoked from the command line directly in the shell

{
  "compare": "node scripts/compare.mjs",
  "hash": "node scripts/hash.mjs",
  "salt": "node scripts/salt.mjs"
}

Where required, both the hash and salt arguments are expected from the command line to be strings in Base64 format. Both iterations and keylen are coerced from strings to numbers

npm run compare -- \
  --password <PASSWORD> \
  --hash <HASH> \
  --salt <SALT> \
  --keylen <KEY LENGTH> \
  --iterations <ITERATIONS> \
  --digest <DIGEST>

node ./scripts/compare.mjs \
  --password <PASSWORD> \
  --hash <HASH> \
  --salt <SALT> \
  --keylen <KEY LENGTH> \
  --iterations <ITERATIONS> \
  --digest <DIGEST>

Etc.

The hash is decoded from a Base64 String to a Buffer
The salt is decoded from a Base64 String to a Buffer

Tests

npm test

./compare.sh

pbkdf2 crypto compare hash salt ecmascript typescript

debug yargs-parser

@infinitebrahmanuniverse/nolb-_seq @everything-registry/sub-chunk-823

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