# Add Keys

### Before you begin

Before you begin, Make sure you have the following:

* [**Creating InfraDID**](/infrablockchain-docs/infrablockchain/tutorials/service-chains/infra-did-parachain/create-infra-did.md)

### Adding Public Keys to InfraDID

InfraDID registered on the chain allows management of various items, one of which is the list of public keys. By storing a list of public keys that a specific DID can use on the chain, it makes it public for other users to inspect the Document of a specific DID.

To add public keys to InfraDID, follow these steps:

1. Visit the [InfraBlockchain Explorer](https://portal.infrablockspace.net) and follow the steps below.

* Go to `Developer` - `Extrinsic` and select the `addKeys` extrinsic of the `didModule` palette.

  Configure it as shown below and trigger the extrinsic:

  ![add-keys](/files/MozfEq3yb5p54pfs6MuA)

  Encode call data:

  ```shell
  0x3404d43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d04012e7222343997d83b3571b176837092986630c3de8fcdc91ba74d31bbb11c1181000000000000d43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d0100000001f62b5a39b0fceeb51d16b2a189da0e73f15f384497dcdd63a1f9a7c626f7649941b4a8cb66fed18c65574117a2f1ed607591dda6f6ec3bdfff40a09a71e202803
  ```

### Removing Public Keys from InfraDID

To remove public keys from InfraDID, follow these steps:

1. Visit the [*InfraBlockchain Explorer*](https://portal.infrablockspace.net) and follow the steps below.

* Go to `Developer` - `Extrinsic` and select the `removeKeys` extrinsic of the `didModule` palette.

  Configure it as shown below and trigger the extrinsic:

  ![remove-keys](/files/HXb42XTj30UoHAzye3MP)

### Adding and Removing Public Keys from InfraDID Using the `infra-did-js` Library

To add and remove public keys from InfraDID using the `infra-did-js` library:

1. Install the [`infra-did-js`](https://github.com/InfraBlockchain/infra-did-js) library.

   ```shell
   yarn add infra-did-js
   ```
2. Write code to set up the basic configuration code for accessing InfraDID chain, as shown below:

   ```typescript
   import  {InfraSS58, CRYPTO_INFO} from 'infra-did-js';

   const txfeePaterAccountKeyPair = await InfraSS58.getKeyPairFromUri('//Alice', 'sr25519');
   const confBlockchainNetwork = {
     networkId: 'space',
     address: 'ws://localhost:9944',
     // seed or keyPair required
     txfeePayerAccountKeyPair,
     // or txfeePayerAccountSeed: 'TX_FEE_PAYER_ACCOUNT_SEED'
   };
   const conf = {
     ...confBlockchainNetwork,
     did: 'did:infra:space:5CRV5zBdAhBALnXiBSWZWjca3rSREBg87GJ6UY9i2A7y1rCs',
     // seed or keyPair required
     seed: 'DID_SEED',
     // keyPair: keyPair,
     controllerDID: 'did:infra:space:5HdJprb8NhaJsGASLBKGQ1bkKkvaZDaK1FxTbJRXNShFuqgY'
     controllerSeed: 'DID_CONTROLLER_SEED',
     // or controllerKeyPair: controllerKeyPair
   };
   const infraApi = await InfraSS58.createAsync(conf);
   ```
3. Write code to add public keys to InfraDID:

   ```typescript
   // Add keys
   await infraApi.didModule.addKeys(SOME_DID_KEY);
   ```
4. Alternatively, write code to remove public keys from InfraDID:

   ```typescript
   // Remove Keys
   await infraApi.didModule.removeKeys(DID_KEY_IDS);
   ```

### Next steps

* [Registering Service Endpoints with InfraDID](/infrablockchain-docs/infrablockchain/tutorials/service-chains/infra-did-parachain/add-services.md)


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