nodecredstash

Node.js port of credstash

=============

$ npm i --save nodecredstash

let Credstash = require('nodecredstash');

let credstash = new Credstash();

credstash.putSecret({name: 'Death Star vulnerability', secret: 'Exhaust vent', version: 1, context: {rebel: 'true'}})
  .then(() => credstash.getSecret({name: 'Death Star vulnerability', version: 1, context: {rebel: 'true'}})
  .then(secret => console.log(secret));

Options

dynamoOpts

Options that are specific to the DynamoDB configuration.

kmsOpts

Options that are specific to the KMS configuration.

General function arguments

tableName

The DynamoDB table where credentials are stored default: credential-store

kmsKey

The name of the KMS key created for credstash. default: alias/credstash

context

Context for encrypting and decrypting secrets with KMS.

Function arguments

name

The name of the secret that will be stored in DynamoDB

version

Can be a string or number. If it is a number, then nodecredstash will pad it with 0s so it can be sorted.

cb

An optional callback function when you don't want to use promises;

credstash.getSecret({
      name: 'Death Star plans',
      context: {rebelShip: 'true'}
    }, (err, res) => {
    if (err) {
      throw new Error('The Death Star plans are not in the main computer.');
    }
    ...
})

Functions

.createDdbTable([{[tableName], [kmsKey]}], [cb])

Create the table in DynamoDB using the table option

.putSecret({name, secret, [version], [context], [digest], [tableName], [kmsKey]}, [cb])

Encode a secret and place it in DynamoDB.

credstash.putSecret({
  name: 'Death Star Vulnerability',
  secret: 'Exhaust vent',
  context: { rebel: 'true'}
});

DynamoDB will now contain a record for this entry that looks like:

{
  "name": "Death Star Vulnerability", //
  "key": "...", // The value sent to KMS to retrieve the decryption key
  "version": "0000000000000000001", // The version string, should be sorteable
  "hmac": "...", // An HMAC validation value
  "contents": "..." // The AES 128 encrypted value
}

getHighestVersion({name, [tableName], [kmsKey]}, [cb])

Returns the first sorted result for the given name key.

incrementVersion({name, [tableName], [kmsKey]}, [cb])

Returns the next incremented version version for the given name key.

.getSecret({name, [version], [context], [tableName], [kmsKey]}, [cb])

Retrieve a decrypted secret from DynamoDB.

credstash.getSecret({name: 'Death Star Vulnerability', context: {rebelDroid: 'true'}})
  .then(secrets => console.log(JSON.stringify(secrets, null, 2)));

{
  "Death Star Vulnerability": "Exhaust vent"
}

.getAllSecrets({[version], [context], [startsWith], [tableName], [kmsKey]}, [cb])

Retrieve all decrypted secrets from DynamoDB.

The startsWith option will filter the response

credstash.getAllSecrets({context: {rebel: 'true'}})
  .then(secrets => console.log(JSON.stringify(secrets, null, 2)));

{
  "Death Star vulnerability": "Exhaust vent"
}

.getAllVersions({name, [context], [limit], [tableName], [kmsKey]}, [cb])

Retrieve all or the last N(limit) versions of a secret.

credstash.getAllSecrets({name: 'Death Star vulnerability', limit: 2, context: {rebel: 'true'}})
  .then(secrets => console.log(JSON.stringify(secrets, null, 2)));

[ { "version": "0000000000000000006", "secret": "Exhaust vent" },
  { "version": "0000000000000000005", "secret": "Destroy vent" } ]

.listSecrets([{[tableName], [kmsKey]}], [cb])

Retrieve all stored secrets and their highest version

credstash.listSecrets()
  .then(list => console.log(JSON.stringify(list, null, 2)));

[
  {
    "name": "Death Star",
    "version": "0000000000000000001"
  },
  {
    "name": "Death Star vulnerability",
    "version": "0000000000000000001"
  }
]

.deleteSecret({name, version, [tableName], [kmsKey]}, [cb])

Delete the desired secret by version from DynamoDB

credstash.deleteSecret({name: 'Death Star', version: 1})
// 'Deleting Death Star -- version 0000000000000000001'
  .then(() => credstash.list())
  .then(list => console.log(JSON.stringify(list, null, 2));

[
  {
    "name": "Death Star vulnerability",
    "version": "0000000000000000001"
  }
]

.deleteSecrets({name, [tableName], [kmsKey]}, [cb])

Deletes all of the versions of name

credstash.deleteSecrets({name: 'Death Star vulnerability'})
// 'Deleting Death Star vulnerability -- version 0000000000000000001'
  .then(() => credstash.listSecrets())
  .then(list => console.log(JSON.stringify(list, null, 2));

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