- Http toolkit certificate download install#
- Http toolkit certificate download manual#
- Http toolkit certificate download for android#
Http toolkit certificate download install#
In Android 11, to install a CA certificate, users need to manually: It is still possible to install certificates using the device management API, but only in the special case where your application is a pre-installed OEM app, marked during the device's initial setup as the 'device owner'. In practice, this change means the certificate install API no longer works, opening certificate files no longer works, and it's impossible to initiate a certificate install even from ADB (the Android debugging tool). The only mention in the Android 11 release information is a small side note in the enterprise features changelog, which notes that the createInstallIntent() API no longer works in some cases.
This wasn't clearly announced anywhere, as far as I can tell. If it was launched by anybody other than the system's settings application, the certificate install is refused with an obscure alert message:ĬA certificates can put your privacy at risk and must be installed in Settings In Android 11, the certificate installer now checks who asked to install the certificate.
Http toolkit certificate download manual#
Unfortunately, automating that setup is no longer possible on these devices, and each of these use cases will now require a series of fiddly manual steps that tools can't lead you to or help with. This was very useful! This allowed developers to opt-into this trust in their local builds to debug traffic, it allowed testers to automatically & easily trust CA certificates so they can mock & verify HTTPS traffic in manual & automated testing, and it was used by a wide variety of debugging tools (including HTTP Toolkit) to easily let developers & testers inspect & rewrite their encrypted HTTPS traffic. Until now however, you could install to the user certificate store, which apps could individually opt into trusting, but which they don't trust by default. for your apps' HTTPS connections - and as a normal user it's completely impossible to change the certificates here, and has been for quite some time. The system store is used as the default to verify all certificates - e.g. This store, in case you're not familiar, differs significantly from Android system-wide certificate store, and since Android 7 (Nougat, released in 2016) it's been impossible to install any CA certificates into the system store without fully rooting the device. That only applied to the user certificate store. It wasn't possible to do accidentally, and it was hard to trick users into accepting these scary prompts (although probably not impossible). These certificate trust prompts came with a variety of loud warnings & confirmations, and mandated setup of a device pin or other screen lock before you could complete them, if one wasn't already set. Similarly, the operating system would offer to trust a CA certificate if one was manually opened on the device from the filesystem. Until now, an app could ask a user to trust a CA certificate in the user certificate store (but not the system store), using the Ke圜hain.createInstallIntent() API method. Let's dig into the details: How did Android CA certificate management work until now?
There's a balance here to manage, and I'm not sure Android has made the right choice. That said, there are many legitimate use cases where you want to be able to choose which CAs you trust, and that just got much harder. Protecting users from themselves is absolutely necessary here, and it's a hard problem. To be clear, carefully managing the trusted CAs on Android devices is important! Adding a CA should not be easy to do by accident or unknowingly. The only way to install any CA certificate now is by using a button hidden deep in the settings, on a page that apps cannot link to.
Http toolkit certificate download for android#
Nonetheless, it's also something that power users might want to configure, for Android testing, for app debugging, for reverse engineering or as part of some enterprise network configurations.Īndroid has tightly restricted this power for a while, but in Android 11 ( released this week) it locks down further, making it impossible for any app, debugging tool or user action to prompt to install a CA certificate, even to the untrusted-by-default user-managed certificate store. That's a lot of power, and the list of trusted authorities is dangerous to mess around with. Your trusted Certificate Authorities (CAs) are the organizations that you trust to guarantee the signatures of your encrypted traffic and content.
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