AES ciphering APIs (setup operation, load key/iv, process ciphering)
This change provides an example of a AES ciphering operation from a
trusted application (TA) using the GPD TEE Core Internal API.
AES TA implements the basics for setting a AES/CTR ciphering session
using the TEE Core Internal API:
- Opening a session toward the AES TA creates AES ciphering session.
- A TA command allows to setup and allocate the ciphering resources.
- A TA command allows to load the AES key.
- A TA command allows to reset the initial vector.
- A TA command allows to cipher an input buffer into an output buffer.
The sample application creates an AES128-CTR encryption session,
provides the AES key and and initial vector then request encryption of
a data buffer. Then it sets up a decryption session, provide the same
key and initial vector and request decryption of the encrypted content.
Finally it checks clear and decoded data are the same.
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
diff --git a/aes/Android.mk b/aes/Android.mk
new file mode 100644
index 0000000..ba513ca
--- /dev/null
+++ b/aes/Android.mk
@@ -0,0 +1,19 @@
+LOCAL_PATH := $(call my-dir)
+
+OPTEE_CLIENT_EXPORT ?= $(LOCAL_PATH)/../../optee_client/out/export
+
+include $(CLEAR_VARS)
+LOCAL_CFLAGS += -DANDROID_BUILD
+LOCAL_CFLAGS += -Wall
+
+LOCAL_SRC_FILES += host/main.c
+
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/ta/include \
+ $(OPTEE_CLIENT_EXPORT)/include
+
+LOCAL_SHARED_LIBRARIES := libteec
+LOCAL_MODULE := optee_example_aes
+LOCAL_MODULE_TAGS := optional
+include $(BUILD_EXECUTABLE)
+
+include $(LOCAL_PATH)/ta/Android.mk