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Correct the description for getKeyCharacteristics

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The description should note that keystore-enforced tags are not to be
returned. This is done so that the keymint implementation doesn't have
to bother keeping track of tags it's not repsonsible for dealing with.

Fixes: 192575557
Test: none (it's just a comment change)
Change-Id: I3ff94201c262a5071d271b150dbbf21888d678aa
Merged-In: I3ff94201c262a5071d271b150dbbf21888d678aa
This commit is contained in:
Seth Moore
2021-06-01 11:30:24 -07:00
parent 0700d79feb
commit 8b78dc5031
1 changed files with 4 additions and 3 deletions
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7
security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl
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@@ -813,9 +813,10 @@ interface IKeyMintDevice {
byte[] convertStorageKeyToEphemeral(in byte[] storageKeyBlob);
/**
* Returns parameters associated with the provided key. This should match the
* KeyCharacteristics present in the KeyCreationResult returned by generateKey(),
* importKey(), or importWrappedKey().
* Returns KeyMint-enforced parameters associated with the provided key. The returned tags are
* a subset of KeyCharacteristics found in the KeyCreationResult returned by generateKey(),
* importKey(), or importWrappedKey(). The returned value is a subset, as it does not include
* any Keystore-enforced parameters.
*
* @param keyBlob The opaque descriptor returned by generateKey, importKey or importWrappedKey.
*