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| H A D | tee_api_operations.c | aeb530a5a74acddd0badc78af47fce57db8c4644 Tue Mar 05 21:38:20 UTC 2024 Sami Tolvanen <samitolvanen@google.com> libutee: process a full buffer immediately
In tee_buffer_update, libutee currently delays processing an input
block until more space is needed in the buffer, which is perfectly
valid behavior, but doesn't match AOSP compatibility requirements.
Specifically, both CTS (testKatEncryptOneByteAtATime [1]) and VTS
(EncryptionOperationsTest.*OneByteAtATime [2]) expect block cipher
implementations to produce an output block as soon as a full block
of input has been received. Change libutee behavior to be AOSP
compatible.
Link: https://android.googlesource.com/platform/cts/+/refs/heads/main/tests/tests/keystore/src/android/keystore/cts/BlockCipherTestBase.java#779 [1]
Link: https://android.googlesource.com/platform/hardware/interfaces/+/refs/heads/main/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp#827 [2]
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
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