How to Migrate Your Android App’s Signing Key
It is time to update to a stronger signing key for your Android app! The old default RSA 1024-bit key is weak and officially deprecated.
What? The Android OS requires that every application installed be signed by a digital key. The purpose behind this signature is to identify the author of the application, allow this author and this author alone to make updates to the app, as well as provide a mechanism to establish inter-application trust.
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