samples/drivers/crypto: crypto sample app

A sample application  to illustrate the usage of crypto APIs.
This shows the usage of AES - CTR, CBC and CCM  based encryption
and decryption.

origin: original

Change-Id: I17e4d966a70169b71a754c9cdc3f713a5d0c3ac0
Signed-off-by: Jithu Joseph <[email protected]>

Author: jithu83

samples/drivers/crypto/Makefile

@@ -0,0 +1,4 @@
+BOARD ?= qemu_x86
+CONF_FILE = prj.conf
+
+include ${ZEPHYR_BASE}/Makefile.inc

samples/drivers/crypto/README.txt

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+Title: crypto
+
+Description:
+
+An example to illustrate the usage of crypto APIs.
+
+--------------------------------------------------------------------------------
+
+Building and Running Project:
+
+This microkernel project outputs to the console.  It can be built and executed
+on QEMU as follows:
+
+    make qemu
+
+--------------------------------------------------------------------------------
+
+Troubleshooting:
+
+Problems caused by outdated project information can be addressed by
+issuing one of the following commands then rebuilding the project:
+
+    make clean          # discard results of previous builds
+                        # but keep existing configuration info
+or
+    make pristine       # discard results of previous builds
+                        # and restore pre-defined configuration info
+
+--------------------------------------------------------------------------------
+
+Sample Output:
+
+[general] [INF] main: Encryption Sample
+
+[general] [INF] cbc_mode: CBC Mode
+
+[general] [INF] cbc_mode: cbc mode ENCRYPT - Match
+
+[general] [INF] cbc_mode: cbc mode DECRYPT - Match
+
+[general] [INF] ctr_mode: CTR Mode
+
+[general] [INF] ctr_mode: ctr mode ENCRYPT - Match
+
+[general] [INF] ctr_mode: ctr mode DECRYPT - Match
+
+[general] [INF] ccm_mode: CCM Mode
+
+[general] [INF] ccm_mode: CCM mode ENCRYPT - Match
+
+[general] [INF] ccm_mode: CCM mode DECRYPT - Match
+

samples/drivers/crypto/prj.conf

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+CONFIG_STDOUT_CONSOLE=y
+#CONFIG_TEST_RANDOM_GENERATOR=y
+CONFIG_TINYCRYPT=y
+CONFIG_TINYCRYPT_AES=y
+CONFIG_TINYCRYPT_AES_CBC=y
+CONFIG_TINYCRYPT_AES_CTR=y
+CONFIG_TINYCRYPT_AES_CCM=y
+CONFIG_DEBUG=y
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_TINYCRYPT_SHIM=y
+CONFIG_SYS_LOG_CRYPTO_LEVEL=4
+CONFIG_SYS_LOG=y
+CONFIG_ASSERT=y

samples/drivers/crypto/src/Makefile

@@ -0,0 +1 @@
+obj-y = main.o