Generate Random Api Key Javascript

 
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by Ramesh Lingappa

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We all know how valuable APIs are. They’re the gateway to exploring other services, integrating with them, and building great solutions faster.

You might have built or are thinking of building APIs for other developers to use. An API needs some form of authentication to provide authorised access to the data it returns.

RandomKeygen is a free mobile-friendly tool that offers randomly generated keys and passwords you can use to secure any application, service or device. KEY RandomKeygen - The Secure Password & Keygen Generator. Apr 10, 2020 To get an API key: Go to the Google Cloud Platform Console. Click the project drop-down and select or create the project for which you want to add an API key. Click the menu button and select APIs & Services Credentials. On the Credentials page, click Create credentials API key. The API key created dialog displays your newly created API key. To generate the byte string in the AWS CloudHSM cluster that is associated with a custom key store, specify the custom key store ID. The random byte string. When you use the HTTP API or the AWS CLI, the value is Base64-encoded. You requested the CreateKey or GenerateRandom operation in a custom key store that is not connected. Sep 30, 2018 Let’s get started, and I’ll show you how to build API Keys the right way. API Key Generation. Since the API key itself is an identity by which to identify the application or the user, it needs to be unique, random and non-guessable. API keys that are generated must also use Alphanumeric and special characters. Apr 10, 2020  To get an API key: Go to the Google Cloud Platform Console. Click the project drop-down and select or create the project for which you want to add an API key. Click the menu button and select APIs & Services Credentials. On the Credentials page, click Create credentials API key. The API key created dialog displays your newly created API key. Extractable is a Boolean indicating whether it will be possible to export the key using SubtleCrypto.exportKey or SubtleCrypto.wrapKey. KeyUsages is an Array indicating what can be done with the newly generated key.

There are several authentication standards available today such as API Keys, OAuth, JWT, etc.

In this article, we’ll look at how to correctly manage API Keys to access APIs.

Random Password Generator. This form allows you to generate random passwords. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs.

So Why API Keys?

API Keys are simple to use, they’re short, static, and don’t expire unless revoked. They provide an easy way for multiple services to communicate.

If you provide an API for your clients to consume, it’s essential for you to build it in the right way.

Let’s get started, and I’ll show you how to build API Keys the right way.

API Key Generation

Since the API key itself is an identity by which to identify the application or the user, it needs to be unique, random and non-guessable. API keys that are generated must also use Alphanumeric and special characters. An example of such an API key is zaCELgL.0imfnc8mVLWwsAawjYr4Rx-Af50DDqtlx.

Secure API Key Storage

Since the API key provides direct access to data, it’s pretty much like a password that a user of a web or mobile app provides to gain access to the same data.

Think about it. The reason we need to store API keys is to make sure that the API key in the request is valid and issued by us (just like a password).

We don’t need to know the raw API key, but just need to validate that the key is correct. So instead of storing the key in plain text (bad) or encrypting it, we should store it as a hashed value within our database.

A hashed value means that even if someone gains unauthorised access to our database, no API keys are leaked and it’s all safe. The end user would send the raw API key in each API request, and we can validate it by hashing the API key in the request and compare the hashed key with the hash stored within our database. Here is a rough implementation of it in Java:

In the code above, the primary key will be a combination of the prefix and the hash of the API key {prefix}.{hash_of_whole_api_key}.

But hold on, there is more. Storing a hashed value brings specific usability problems. Let’s address those now.

Presenting the API Key to users

Since we don’t store the original API key, we can show it only once to the user, at the time of creation. So be sure to alert users that it cannot be retrieved again, and they need to generate a new token if they forget to copy the API key and store it safely. You can do something like this:

How users can identify a generated API Key later

Another problem is how users identify the right API key in your console if they need to edit or revoke it. This can be solved by adding a prefix to the API key. Notice in the picture above the first 7 characters (that’s our prefix), separated by the dot.

Now you can store this prefix in the database and display it in the console so users are able to quickly identify the right API key entry, like this:

Don’t give the API Key all the power

One common mistake that API key providers make is providing one key to access everything, since it’s easy to manage. Don’t do that. Assume that a user just needs to read an email, and generates an API key. But that key now has full access to other services, including deleting records in the database.

The right approach is to allow the end users to properly restrict API Key access and choose specific actions that an API key can carry out. This can be done by providing scopes, where each scope represents a specific permission.

For example,

  • if you need an API key to just send emails, you can generate an API key with the scope as “email.send”
  • if the end user has multiple servers and each carries out a specific action, then a separate API key can be generated with a specific scope.

So while creating the API key, allow users to select what access that API key should have, as in the image below.

This way users can generate multiple API keys, each with specific rules of access for better security. And when an API request is received, you can check if the API Key has the right scope to access that API. Now the database looks something like this:

Rate limiting API keys

Yes, you might already know it, but it is important to rate limit requests made with specific API Keys to ensure no bad actor can take down your API servers or cause performance issues that affect your other customers. Having a proper rate limiting and monitoring solution keeps the API service healthy.

Conclusion

API keys, when built right, are still a great way to communicate with another server. As we reviewed in this article, following certain practices offers benefits to both API consumers and API providers. Hope this helps you.

Happy Securing your APIs!

Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Use the generateKey() method of the SubtleCrypto interface to generate a new key (for symmetric algorithms) or key pair (for public-key algorithms).

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Syntax

Parameters

  • algorithm is a dictionary object defining the type of key to generate and providing extra algorithm-specific parameters.
    • For RSASSA-PKCS1-v1_5, RSA-PSS, or RSA-OAEP: pass an RsaHashedKeyGenParams object.
    • For ECDSA or ECDH: pass an EcKeyGenParams object.
    • For HMAC: pass an HmacKeyGenParams object.
    • For AES-CTR, AES-CBC, AES-GCM, or AES-KW: pass an AesKeyGenParams object.
  • extractable is a Boolean indicating whether it will be possible to export the key using SubtleCrypto.exportKey() or SubtleCrypto.wrapKey().
  • keyUsages  is an Array indicating what can be done with the newly generated key. Possible values for array elements are:
    • encrypt: The key may be used to encrypt messages.
    • decrypt: The key may be used to decrypt messages.
    • sign: The key may be used to sign messages.
    • verify: The key may be used to verify signatures.
    • deriveKey: The key may be used in deriving a new key.
    • deriveBits: The key may be used in deriving bits.
    • wrapKey: The key may be used to wrap a key.
    • unwrapKey: The key may be used to unwrap a key.

Return value

  • result is a Promise that fulfills with a CryptoKey (for symmetric algorithms) or a CryptoKeyPair (for public-key algorithms).

Exceptions

The promise is rejected when the following exception is encountered:

SyntaxError
Raised when the result is a CryptoKey of type secret or private but keyUsages is empty.
SyntaxError
Raised when the result is a CryptoKeyPair and its privateKey.usages attribute is empty.

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Examples

RSA key pair generation

This code generates an RSA-OAEP encryption key pair. See the complete code on GitHub.

Elliptic curve key pair generation

This code generates an ECDSA signing key pair. See the complete code on GitHub.

HMAC key generation

This code generates an HMAC signing key. See the complete code on GitHub. /black-ops-2-product-key-generator.html.

AES key generation

This code generates an AES-GCM encryption key. Generating authorized_keys filezilla sftp. See the complete code on GitHub.

Specifications

SpecificationStatusComment
Web Cryptography API
The definition of 'SubtleCrypto.generateKey()' in that specification.
RecommendationInitial definition.

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
generateKeyChromeFull support 37EdgePartial support12
Partial support12
Notes
Notes Not supported: RSA-PSS, ECDSA, ECDH.
Notes Not supported: AES-CTR.
FirefoxFull support 34
Full support 34
No support32 — 34
Disabled From version 32 until version 34 (exclusive): this feature is behind the dom.webcrypto.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IEPartial support11
Notes
Partial support11
Notes Returns KeyOperation instead of Promise
OperaFull support 24SafariFull support 7WebView AndroidFull support 37Chrome AndroidFull support 37Firefox AndroidFull support 34
Full support 34
No support32 — 34
Disabled
Disabled From version 32 until version 34 (exclusive): this feature is behind the dom.webcrypto.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera AndroidFull support 24Safari iOSFull support 7Samsung Internet AndroidFull support 6.0

Generate Random Api Key Javascript Free

Legend

Full support Â
Full support
Partial support Â
Partial support
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.

See also

Generate Random Api Key Javascript Download

  • Cryptographic key length recommendations.
  • NIST cryptographic algorithm and key length recommendations.