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/Makefile b/aes/Makefile
new file mode 100644
index 0000000..3b9a8dc
--- /dev/null
+++ b/aes/Makefile
@@ -0,0 +1,15 @@
+export V ?= 0
+
+# If _HOST or _TA specific compilers are not specified, then use CROSS_COMPILE
+HOST_CROSS_COMPILE ?= $(CROSS_COMPILE)
+TA_CROSS_COMPILE ?= $(CROSS_COMPILE)
+
+.PHONY: all
+all:
+ $(MAKE) -C host CROSS_COMPILE="$(HOST_CROSS_COMPILE)"
+ $(MAKE) -C ta CROSS_COMPILE="$(TA_CROSS_COMPILE)"
+
+.PHONY: clean
+clean:
+ $(MAKE) -C host clean
+ $(MAKE) -C ta clean