Implement rate limiting on a per app basis for confirmationui
Implements the following strategy per app:
* Every attempted prompt increments a try counter.
* A prompt that was confirmed by the user resets the try counter.
* No penalty is applied after the first two cancelled attempts.
* A penalty of 30s is applied after attempt 3, 4, and 5 when
cancelled by the user
* A penalty of 60s * 2**(N - 6) after the Nth cancelled attempt
for attempts 6...
* A try counter that was not updated in 24h gets garbage collected.
Test: /data/nativetest64/keystore_unit_tests/keystore_unit_tests
Bug: 73892492
Change-Id: I0b50869259bfe920338c0c049cb9a715143ab103
5 files changed