PII SDK

Encryption & Decryption Library for Personal Identifiable Information (PII)

Documentation • Getting started • Installation • Configuration

Getting Started

Installation

yarn

yarn add @notabene/pii-sdk

npm

npm install @notabene/pii-sdk

Usage

Requirements

| Parameter | Description | | ---------------- | ------------------------------------------------------------------- | | NOTABENE_URL | Notabene directory URL to get VASP DIDs and keys | | NOTABENE_PII_URL | Default Notabene PII escrow service to share encrypted audited data |

Example usage

import PIIsdk from '@notabene/pii-sdk';

//Init Notabene Key Toolset
const toolset = new PIIsdk({
  NOTABENE_URL: 'https://api.notabene.id',
  NOTABENE_PII_URL: 'https://pii.notabene.id',
});

//Create cryptography keypair
const myKey = await toolset.createKey();

//Encrypt to VASP with key did:key:z6MkhaX...
const encryptedPII = await toolset.encryptPII({
  senderDIDKey: myKey.did,
  recipientDIDkeys: ['did:key:z6MkhaX...'],
  body: piiData,
  keypair: myKey,
});

//Decrypt PII for VASP
const decryptedPII = await toolset.decryptPII({encryptedMessage: encryptedPII, keypair: myKey});

Extra tools

Encrypting IVMS objects

IVMS objects are complex nested JSON objects, to encrypt its data we first flatten the IVMS structure to a key-value pair. Where the key is the path to the value in the JSON structure.

// the IVMS object:
const pii = {
  originator: {
    originatorPersons: [
      {
        naturalPerson: {
          name: [
            {
              nameIdentifier: [
                {
                  primaryIdentifier: 'Frodo',
                  secondaryIdentifier: 'Baggins',
                  nameIdentifierType: 'LEGL',
                },
              ],
            },
          ],
        },
      },
    ],
  },
};

// flatten the IVMS object
const flatPII = toolset.flattenPII(pii);
console.log(flatPII);
/*
  [
    {
      key: 'originator.originatorPersons[0].naturalPerson.name[0].nameIdentifier[0].primaryIdentifier',
      value: 'Frodo'
    },
    {
      key: 'originator.originatorPersons[0].naturalPerson.name[0].nameIdentifier[0].secondaryIdentifier',
      value: 'Baggins'
    },
    {
      key: 'originator.originatorPersons[0].naturalPerson.name[0].nameIdentifier[0].nameIdentifierType',
      value: 'LEGL'
    }
  ]
*/

// import or create a new DIDKey keypair
const myKey = getMyPrivateDIDKey() || await toolset.createKey();

// encrypting the PII (IVMS) values
for (const obj of flatPII) {
  obj.value = await toolset.encryptPII({
    senderDIDKey: myKey.did,
    recipientDIDkeys: [], // DIDKeys (public keys) of other recipients
    body: obj.value,
    keypair: myKey
  });
}

// ... sending this array of KeyValue pairs to the PII Service API

Decrypting IVMS objects

// The PII (IVMS) object with encrypted values
const encryptedIVMS = {
  originator: {
    originatorPersons: [
      {
        naturalPerson: {
          name: [
            {
              nameIdentifier: [
                {
                  primaryIdentifier:
                    '{"protected":"eyJ0eXAiOiJhcHBsaWNhdGlvbi9kaWRjb21tLWVuY3J5cHRlZCtqc29uIiwic2tpZCI6ImRpZDprZXk6ejZNa3VDQXRWclIxU3hLVGtxQnhSMUJ0VDd2MWJ5aUJ0bVkxNFd0b2t4Q0U2aW52I3o2TFNkM3NObWdrV3hwdFBXVGU4ZGdMQ3ZXMVRqRlcyYWlwRnFMbUxUREJQZ3VkYSIsImVuYyI6IlhDMjBQIn0","iv":"XgtpNKM7_hRovx4Kwk5I6c3q5ocrRYXb","ciphertext":"L7_fQrZfQF2dCkjXdHnGM_jdq2dV1IGNzAgyjISg_pPS5pVV6Fi81kfZdbtu_XSgV4h085ZNQ-0iPXYiYYvDLkZcDJpYQrl88Raa48Mw1okSWQR7auH3VF6FeV5ugDnBLBoSjStbLFj2HEVwKtc9vrSjVr2iWLSs9OVCfcDtKV3Q9RJZVEY-higlpm1b7b6pS8-bwJ7HbcRS0hW_8NNkXPn4846jKrB28sDnfrQ_9X62wMP0Em_b86FT9dud78SGjIharesdT8HQPo-ypzLqKeIR7mnt4eLtPGUfc8f6HeA","tag":"FafOxzJmdBPABAC49LdCFw","recipients":[{"encrypted_key":"H76hGHBmkxOgwUuPwQzx6o1LOv6B0HhINhWj9ESqOFs","header":{"alg":"ECDH-1PU+XC20PKW","iv":"yENsMskcLxwPz4mUGMVlTGPI7liaerRT","tag":"IdCE7h6HvQdYQNlVPbvl0w","epk":{"kty":"OKP","crv":"X25519","x":"PgXPvaJ2BcnooB5B-76p0z47IQyEIIesDZVcTagBxTk"},"kid":"did:key:z6MkuCAtVrR1SxKTkqBxR1BtT7v1byiBtmY14WtokxCE6inv#z6LSd3sNmgkWxptPWTe8dgLCvW1TjFW2aipFqLmLTDBPguda"}}]}',
                  secondaryIdentifier:
                    '{"protected":"eyJ0eXAiOiJhcHBsaWNhdGlvbi9kaWRjb21tLWVuY3J5cHRlZCtqc29uIiwic2tpZCI6ImRpZDprZXk6ejZNa3VDQXRWclIxU3hLVGtxQnhSMUJ0VDd2MWJ5aUJ0bVkxNFd0b2t4Q0U2aW52I3o2TFNkM3NObWdrV3hwdFBXVGU4ZGdMQ3ZXMVRqRlcyYWlwRnFMbUxUREJQZ3VkYSIsImVuYyI6IlhDMjBQIn0","iv":"9vpvSjvn1A7DolkoMB18jfsODtZkmbVC","ciphertext":"Y6R8GMR-_4nQpCYUxxPj4oUGDW3AvWMU2Nutw-ZC0cdtvPyTVqXK4hjVtKSws_DqqrALrAW-YB7g2j_LoOC32-qkU90eNVsnZhn7CWDZk6BQaDfJL1gG37p0PLOuOJJajeUXtneILO2G02ytYcLB74DIXXYITI32TkxednFWLX3JgMXldRtCOLqWqJbZwKZHW9HdbTd3TD0MIOtDCUX82Xmqh-VT_5l0xqFUf-OifiF-ut5PN6ws8eOJX_ortdReWx6frlH4BFHzsg3nhUbrjSSYPbt9Aj7YnP03aE9o8mHqqw","tag":"VpNFV5SSjh4lhCyze1yCWg","recipients":[{"encrypted_key":"ACrfRGnadMVw2Wh_IONGOaWvg-hYkJ7goh4fnmBASzo","header":{"alg":"ECDH-1PU+XC20PKW","iv":"msGsdcbjUrChT25PHU25mYcXYaIZLGnX","tag":"n6K5RRtfUFHTWOT8dAeb_Q","epk":{"kty":"OKP","crv":"X25519","x":"kFIlnnroGJAEmjbXX5ZVpgm5xDwMyI3hAhZRWbyrNTI"},"kid":"did:key:z6MkuCAtVrR1SxKTkqBxR1BtT7v1byiBtmY14WtokxCE6inv#z6LSd3sNmgkWxptPWTe8dgLCvW1TjFW2aipFqLmLTDBPguda"}}]}',
                  nameIdentifierType:
                    '{"protected":"eyJ0eXAiOiJhcHBsaWNhdGlvbi9kaWRjb21tLWVuY3J5cHRlZCtqc29uIiwic2tpZCI6ImRpZDprZXk6ejZNa3VDQXRWclIxU3hLVGtxQnhSMUJ0VDd2MWJ5aUJ0bVkxNFd0b2t4Q0U2aW52I3o2TFNkM3NObWdrV3hwdFBXVGU4ZGdMQ3ZXMVRqRlcyYWlwRnFMbUxUREJQZ3VkYSIsImVuYyI6IlhDMjBQIn0","iv":"S0Zvv6KjUnETSkyEIJg5gIounC-QByrr","ciphertext":"PTI9E-yCLvZvy8HC-LRSeBc34XDSAmBQhjrvnJ9pli1i6Bcn29ei_jKNNPH9Rkit6PirwDSQDV2Ydn87GqTIi1WgfQM0uZQ9z1y1s2vEDE6Cy3NRe5qmdfC9VUAz57o8n81u5ReW2-NbywNTCwuteaxEFC3ikmrqtUuJLNA0ZcY0QaX0RWHluJR2TvAcydR8ZiMkFycDa4ChLXIsUAwOcQfOLPoICEjn4ebqpe-MPS0kC27FgdxC5L7Xn7yc3szbm419bQuoeOWWj-C1fnRWV7Kcryi8LnowjDSPiupPLA","tag":"8OlyFnEW6lomzRMsxnwUtw","recipients":[{"encrypted_key":"pF5T6K3O_xM0GTZK_AhBADNYAglDk4KyRyMtMCDUsSE","header":{"alg":"ECDH-1PU+XC20PKW","iv":"dDoBimtXAA0J_Z71KraB1cPZWcUxMDyN","tag":"D_Yzl2Ubi3VgdPZqikCnDg","epk":{"kty":"OKP","crv":"X25519","x":"X-5sm5nr-59EyepvvstkeCABemRo9tl7CPNrF5kNThE"},"kid":"did:key:z6MkuCAtVrR1SxKTkqBxR1BtT7v1byiBtmY14WtokxCE6inv#z6LSd3sNmgkWxptPWTe8dgLCvW1TjFW2aipFqLmLTDBPguda"}}]}',
                },
              ],
            },
          ],
        },
      },
    ],
  },
};

// flattening the encrypted IVMS object
const flatEncryptedIVMS = toolset.unflattenPII(encryptedIVMS);

// decrypting the values
for (const obj of flatEncryptedIVMS) {
  obj.value = await toolset.decryptPII({ encryptedMessage: obj.value, keypair: myKey });
}

console.log(toolset.unflattenPII(flatPII));
/*
  {
    originator: {
      originatorPersons: [
        {
          naturalPerson: {
            name: [
              {
                nameIdentifier: [
                  {
                    primaryIdentifier: 'Frodo',
                    secondaryIdentifier: 'Baggins',
                    nameIdentifierType: 'LEGL'
                  }
                ]
              }
            ]
          }
        }
      ]
    }
  }
*/

Contributing

Contributions are welcome!

Want to file a bug, request a feature or contribute some code?

• Check out the Code of Conduct
• Check that there is no existing issue corresponding to your bug or feature
• Before implementing a new feature, discuss your changes in an issue first!

Development scripts

• yarn - To install dependencies
• yarn dlx @yarnpkg/sdks vscode - Sets up VSCode to support ESLint/Prettier/TypeScript using Yarn 3 (make sure to install ZipFS vscode extension too)
• yarn watch - Hot reloading for development
• yarn build - Compile the library to the dist/ folder
• yarn lint - Lints the library using ESLint/Prettier
• yarn test - Run unit tests
• yarn release - Release the project using semantic-release (only run in CI)

License

MIT © Notabene