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Dev tools · July 24, 2014

HI

How I bypassed Exchange security on Android

I was messing around with AOSPA, wanted to figure out a way to bypass the encryption requirement to get exchange mails. Initially I thought I would have to modify the Email app or the part where the OS the administrative provisioning. But as it turns out all I had to do was comment out 8 lines of code private int getEncryptionStatus() { /*String status = SystemProperties.get("ro.crypto.state", "unsupported"); if ("encrypted".equalsIgnoreCase(status)) { return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; } else if ("unencrypted".equalsIgnoreCase(status)) { return…

Alternatives

What it does

In the maker’s words, at launch

I was messing around with AOSPA, wanted to figure out a way to bypass the encryption requirement to get exchange mails. Initially I thought I would have to modify the Email app or the part where the OS the administrative provisioning. But as it turns out all I had to do was comment out 8 lines of code private int getEncryptionStatus() { /*String status = SystemProperties.get("ro.crypto.state", "unsupported"); if ("encrypted".equalsIgnoreCase(status)) { return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; } else if ("unencrypted".equalsIgnoreCase(status)) { return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; } else { return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; }*/ return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; } So now the OS always thinks that its encrypted, and it doesn't ask for the encryption password on boot as that is done by a separate module. Source - https://android.googlesource.com/platform/frameworks/base/+/master/services/java/com/android/server/DevicePolicyManagerService.java Line 2592

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