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Commit acd066c6 authored by Eric Biggers's avatar Eric Biggers
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Clarify the Weaver documentation 

- Explicitly mention that Weaver is for *persistent* storage
- Explicitly mention secure deletion requirement

Change-Id: I3eaf7408570ff20c69a21398e39e16be97d2a917
parent 9cd4caeb

weaver/aidl/android/hardware/weaver/IWeaver.aidl

+4 −3
Original line number Diff line number Diff line
@@ -20,8 +20,8 @@ import android.hardware.weaver.WeaverConfig; 
import android.hardware.weaver.WeaverReadResponse;



/**

 * Weaver provides secure storage of secret values that may only be read if the

 * corresponding key has been presented.

 * Weaver provides secure persistent storage of secret values that may only be

 * read if the corresponding key has been presented.

 *

 * The storage must be secure as the device's user authentication and encryption

 * relies on the security of these values. The cardinality of the domains of the
@@ -76,7 +76,8 @@ interface IWeaver { 
    WeaverReadResponse read(in int slotId, in byte[] key);



    /**

     * Overwrites the identified slot with the provided key and value.

     * Overwrites the identified slot with the provided key and value, rendering

     * the previous contents of the slot permanently unrecoverable.

     *

     * The new values are written regardless of the current state of the slot in

     * order to remain idempotent.