infisical/docs/api-reference/overview/examples/update-secrets.mdx

---
title: "Update secrets"
---

In this example, we demonstrate how to update secrets

Prerequisites:

- Set up and add envars to [Infisical Cloud](https://app.infisical.com)
- Grasp a basic understanding of the system and its underlying cryptography [here](/api-reference/overview/introduction).

## Flow

1. Get your (encrypted) private key.
2. Decrypt your (encrypted) private key with your password.
3. Get the project key for the project.
4. Decrypt the project key with your private key.
5. Encrypt your secret(s) with the project key.
6. Send (encrypted) updated secret(s) to the Infical API

## Example

```js
const crypto = require('crypto');
const axios = require('axios');

const ALGORITHM = 'aes-256-gcm';
const BLOCK_SIZE_BYTES = 16;

const encrypt = (
	text,
	secret
) => {
	const iv = crypto.randomBytes(BLOCK_SIZE_BYTES);
	const cipher = crypto.createCipheriv(ALGORITHM, secret, iv);

	let ciphertext = cipher.update(text, 'utf8', 'base64');
	ciphertext += cipher.final('base64');
	return {
		ciphertext,
		iv: iv.toString('base64'),
		tag: cipher.getAuthTag().toString('base64')
	};
}

const decrypt = (ciphertext, iv, tag, secret) => {
	const decipher = crypto.createDecipheriv(
		ALGORITHM,
		secret,
		Buffer.from(iv, 'base64')
	);
	decipher.setAuthTag(Buffer.from(tag, 'base64'));

	let cleartext = decipher.update(ciphertext, 'base64', 'utf8');
	cleartext += decipher.final('utf8');

	return cleartext;
}

const updateSecrets = async () => {
	const API_KEY = 'your_api_key';
	const PSWD = 'your_pswd';
	const WORKSPACE_ID = 'your_workspace_id';

    const SECRET_ID = 'ID' // ID of secret to update
	const SECRET_KEY = 'SOME_KEY';
    const SECRET_VALUE = 'SOME_VALUE';

	// 1. get (encrypted) private key
	const user = await axios.get(
		'https://api.infisical.com/api/v2/users/me', {
			headers: {
				'X-API-KEY': API_KEY
			}
		}
	);

	// 2. decrypt your (encrypted) private key with your password
	const privateKey = decrypt({
		ciphertext: user.encryptedPrivateKey,
		iv: user.iv,
		tag: user.tag,
		secret: PSWD.slice(0, 32).padStart(32, '0');
	});

	// 3. get the (encrypted) project key for the project
	const encryptedProjectKey = await axios.get(
		`https://api.infisical.com/api/v2/workspace/${WORKSPACE_ID}`, {
			headers: {
				'X-API-KEY': API_KEY
			}
		}
	);

	// 4. decrypt the project key with your private key
	const projectKey = nacl.box.open(
		util.decodeBase64(encryptedProjectKey),
		util.decodeBase64(projectKey.nonce),
		util.decodeBase64(projectKey.sender.publicKey),
		util.decodeBase64(privateKey)
	);

	// 5. encrypt your secret(s) with the project key
	const {
		ciphertext: secretKeyCiphertext,
		iv: secretKeyIV,
		tag: secretKeyTag
	} = encrypt(SECRET_KEY, projectKey);

	const {
		ciphertext: secretValueCiphertext,
		iv: secretValueIV,
		tag: secretValueTag
	} = encrypt(SECRET_VALUE, projectKey);

	const secret = {
        id: SECRET_ID,
		secretKeyCiphertext,
		secretKeyIV,
		secretKeyTag,
		secretValueCiphertext,
		secretValueIV,
		secretValueTag
	}

	// 6. Send (encrypted) secret(s) to the Infisical API
	await axios.patch(
		`https://api.infisical.com/api/v2/secrets`,
		{
			secrets: secret
		},
		{
			headers: {
				'X-API-KEY': API_KEY
			}
		}
	);
}

updateSecrets();
```

<Info>
  This example uses [TweetNaCl.js](https://tweetnacl.js.org/#/), a port of
  TweetNacl/Nacl, to perform asymmeric decryption of the project key but there
  are ports of NaCl available in every major language.
</Info>
<Tip>
  It can be useful to perform steps 1-4 ahead of time and store away your
  private key (and even project key) for later use. The Infisical CLI works by
  securely storing your private key via your OS keyring.
</Tip>