> For the complete documentation index, see [llms.txt](https://docs.buildnatively.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.buildnatively.com/hidden-pages/generate-ios-push-certificate.md).

# Generate iOS Push Certificate (Legacy)

{% hint style="warning" %}
This page is no longer being updated. Please refer to our [Push Notifications - OneSignal](/natively-platform/features/notifications/onesignal-push-notifications.md) for current configurations and support.
{% endhint %}

## Prerequisities

* Created [Bundle Identifier](broken://pages/GO6Q68GbybIEr01M4coS#bundle-identifier) & [AppStore App Id](broken://pages/GO6Q68GbybIEr01M4coS#app-store-app-id)
* [Mac OS](#mac-os), [Windows, or Linux](#windows-and-linux)

## Mac OS

* Open a Keychain Access and select

![](/files/4x1v2qr2oPpZgLRmUejy)

* Enter your email, name, and select **Saved to disk.** Click **Continue.**

![](/files/ysKNz7Anbqx8mH2omqlR)

* After we've created the **Certificate Request** file:
  * Open the [Apple Developer homepage](https://developer.apple.com/account) and select [**Certificates, IDs & Profiles**](https://developer.apple.com/account/resources/certificates/list) \*\*\*\* (left menu)
  * Click on the [**Add button (+)**](https://developer.apple.com/account/resources/certificates/add)\*\*\*\*
  * Select **Apple Push Notification service SSL (Sandbox & Production)**
  * Click **Choose File** and select the **CertificateSigningRequest.certSigningRequest** file.
  * Click **Continue** & **Download**.

![](/files/1yQrI61aL0ZteiFHxRqb)

* Double click on the aps.cer file, and open a Keychain Access.
* Open **login -> Certificates** and select your certificate. (You can search it by your app bundle id)

![](/files/XutIn6sV7C8mPxm7rGSy)

* Right-click on it and click **Export "Apple Push Service: ..."**. \*\*\*\* After that \*\*\*\* select a place where you want to save an exported file.

![](/files/G4921fb3BwKkdNAmnXhQ)

* Enter a password (you will use it for OneSignal later) and click **OK.**

![](/files/chQGgKCxiv0wuuphEi12)

* That's it, we've generated our .p12 certificate that can be used for OneSignal Push Notifications.

## Windows & Linux

* Install [Keychain Explorer](https://keystore-explorer.org/downloads.html) tool.

![](/files/BWePzoxtA16BqYieK20m)

* Open KeyStore Explorer and click **Create a new KeyStore**.

![](/files/8vT31RcP8vpoqfuiHfnq)

* Select **PKCS #12** Type and click **OK.**

![](/files/tKgTSDeLYZDHvbGgcFyE)

* After KeyStore was created, right-click on empty space and select **Generate Key Pair.**

![](/files/vTSSWbqmMjtUp3kv0gbr)

* Make sure that all parameters match a screenshot one and click **OK**.

![](/files/xTpsK1i1J9KhwHecHqDs)

* Click **Contacts** button

![](/files/L3jiZC7flvvSJwJcD17P)

* We need 3 parameters (**Common Name,** **Email,** and **Country**). You can select them in the dropdown list and remove the rest through **(-)** button.

![](/files/VLuB7yOrtUkTDRUcy7xC)

* Enter all information. Make sure the **Country** parameter has a 2 symbols value (USA - **US**, Ukraine - **UA**, Germany - **GE**, etc.). You can find your country code [here](https://cheapsslsecurity.com/p/what-is-ssl-country-code-and-how-do-i-get-one-for-my-csr/).

![](/files/EkgvQ9U8OnxeNzbB0Xi6)

* Make sure that all parameters match a screenshot one and click **OK**. (Next two popups will be with name and password, you can click **OK** without editing on both of them).

![](/files/OeKOuJvYBUbN5nGgKLIE)

* Right-click on your new Key Pair and select **Generate CSR**

![](/files/Beome5Nz0szY5Sa3s5mU)

* Click **Browse.**

![](/files/0UHevbA70rcLfD4cQ54r)

* Select a directory where you want to save your file, enter a filename (*YOURFILENAME***.csr**) \*\*\*\* and click **Choose**

![](/files/6ck9Ui8sOLr89ADEPVcG)

* Make sure that all parameters match a screenshot one and click **OK**.

![](/files/YBoG5lgRqyvg8Q6s6Xsf)

* After we've created **CSR** file, open your [Apple Developer account:](https://developer.apple.com/account)
  * Open the [Apple Developer homepage](https://developer.apple.com/account) and select [**Certificates, IDs & Profiles**](https://developer.apple.com/account/resources/certificates/list) \*\*\*\* (left menu)
  * Click on the [**Add button (+)**](https://developer.apple.com/account/resources/certificates/add)\*\*\*\*
  * Select **Apple Push Notification service SSL (Sandbox & Production)**
  * Click **Choose File** and select the CSR file.
  * Click **Continue** & **Download**.

![](/files/1yQrI61aL0ZteiFHxRqb)

* Open Keychain Explorer, right-click on your Key Pair, and select **Import CA Reply -> From File.**

![](/files/oitGpNJ5psTzTsJbQ8Zw)

* Select downloaded earlier Apple's aps.cer and click **Import.**

![](/files/KZ9Gu5vFohG47bRlR5iI)

* Right-click on your previously imported Key Pair and click **Export -> Export Key Pair.**

![](/files/31T2icFidGE24VMTTpJu)

* Enter a password (you will use it for OneSignal later) and click **Export.**

![](/files/LFBdsqpLreNWvKtyfWLl)

* That's it, we generated our .p12 certificate that can be used for OneSignal Push Notifications.

![](/files/BjBBcYd4htPkyvSIA3IY)